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< a href = "revised__simplex_8cc.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2010-2018 Google LLC< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "comment" > // limitations under the License.< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "revised__simplex_8h.html" > ortools/glop/revised_simplex.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < algorithm> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include < cmath> < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include < functional> < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include < map> < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include < string> < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include < utility> < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " absl/strings/str_cat.h" < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include " absl/strings/str_format.h" < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "commandlineflags_8h.html" > ortools/base/commandlineflags.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "integral__types_8h.html" > ortools/base/integral_types.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "base_2logging_8h.html" > ortools/base/logging.h< / a > " < / span > < / div >
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< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "strong__vector_8h.html" > ortools/base/strong_vector.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "initial__basis_8h.html" > ortools/glop/initial_basis.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "parameters_8pb_8h.html" > ortools/glop/parameters.pb.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__data_8h.html" > ortools/lp_data/lp_data.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__print__utils_8h.html" > ortools/lp_data/lp_print_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__data_2lp__utils_8h.html" > ortools/lp_data/lp_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "matrix__utils_8h.html" > ortools/lp_data/matrix_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__data_2permutation_8h.html" > ortools/lp_data/permutation.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "fp__utils_8h.html" > ortools/util/fp_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#acbeead810cb856b2daab5362d543d727" > 39< / a > < / span >   < a class = "code" href = "revised__simplex_8cc.html#acbeead810cb856b2daab5362d543d727" > ABSL_FLAG< / a > (< span class = "keywordtype" > bool< / span > , simplex_display_numbers_as_fractions, < span class = "keyword" > false< / span > ,< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "stringliteral" > " Display numbers as fractions." < / span > );< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#a5a65d2edddec64f308ea409703708acf" > 41< / a > < / span >   < a class = "code" href = "revised__simplex_8cc.html#acbeead810cb856b2daab5362d543d727" > ABSL_FLAG< / a > (< span class = "keywordtype" > bool< / span > , simplex_stop_after_first_basis, < span class = "keyword" > false< / span > ,< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "stringliteral" > " Stop after first basis has been computed." < / span > );< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#abd7c97d0007f059b2a31c19fdbd6f9c8" > 43< / a > < / span >   < a class = "code" href = "revised__simplex_8cc.html#acbeead810cb856b2daab5362d543d727" > ABSL_FLAG< / a > (< span class = "keywordtype" > bool< / span > , simplex_stop_after_feasibility, < span class = "keyword" > false< / span > ,< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "stringliteral" > " Stop after first phase has been completed." < / span > );< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#a64f746b4688ff40ab91eac0c1779ba95" > 45< / a > < / span >   < a class = "code" href = "revised__simplex_8cc.html#acbeead810cb856b2daab5362d543d727" > ABSL_FLAG< / a > (< span class = "keywordtype" > bool< / span > , simplex_display_stats, < span class = "keyword" > false< / span > , < span class = "stringliteral" > " Display algorithm statistics." < / span > );< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keyword" > namespace < / span > < a class = "code" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keyword" > namespace < / span > glop {< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > // Calls the given closure upon destruction. It can be used to ensure that a< / span > < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "comment" > // closure is executed whenever a function returns.< / span > < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keyword" > class < / span > Cleanup {< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "keyword" > explicit< / span > Cleanup(std::function< < span class = "keywordtype" > void< / span > ()> closure)< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   : closure_(std::move(closure)) {}< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   ~Cleanup() { closure_(); }< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   std::function< void()> closure_;< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   };< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > 64< / a > < / span >   < span class = "preprocessor" > #define DCHECK_COL_BOUNDS(col) \< / span > < / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "preprocessor" > { \< / span > < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "preprocessor" > DCHECK_LE(0, col); \< / span > < / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "preprocessor" > DCHECK_GT(num_cols_, col); \< / span > < / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#a8806083a7bf6a4ee4a4976c226b93788" > 70< / a > < / span >   < span class = "preprocessor" > #define DCHECK_ROW_BOUNDS(row) \< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "preprocessor" > { \< / span > < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "preprocessor" > DCHECK_LE(0, row); \< / span > < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "preprocessor" > DCHECK_GT(num_rows_, row); \< / span > < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceoperations__research_1_1glop.html#a79a952bdd960fc4d23c32edea03bb8c0" > 76< / a > < / span >   constexpr < span class = "keyword" > const< / span > < a class = "code" href = "integral__types_8h.html#abc0f5bc07737e498f287334775dff2b6" > uint64< / a > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a79a952bdd960fc4d23c32edea03bb8c0" > kDeterministicSeed< / a > = 42;< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ab5f355543caf37fcad85bac358d01dbf" > 78< / a > < / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ab5f355543caf37fcad85bac358d01dbf" > RevisedSimplex::RevisedSimplex< / a > ()< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   : problem_status_(< a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > ProblemStatus< / a > ::< a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > INIT< / a > ),< / div >
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< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   num_rows_(0),< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   num_cols_(0),< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   first_slack_col_(0),< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < a class = "code" href = "search_8cc.html#a9c6d2505b571d11bc113813060f465a3" > objective_< / a > (),< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   lower_bound_(),< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   upper_bound_(),< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   basis_(),< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   variable_name_(),< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   direction_(),< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   error_(),< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   basis_factorization_(& compact_matrix_, & basis_),< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   variables_info_(compact_matrix_, lower_bound_, upper_bound_),< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   variable_values_(parameters_, compact_matrix_, basis_, variables_info_,< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   basis_factorization_),< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   dual_edge_norms_(basis_factorization_),< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   primal_edge_norms_(compact_matrix_, variables_info_,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   basis_factorization_),< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   update_row_(compact_matrix_, transposed_matrix_, variables_info_, basis_,< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   basis_factorization_),< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   reduced_costs_(compact_matrix_, < a class = "code" href = "search_8cc.html#a9c6d2505b571d11bc113813060f465a3" > objective_< / a > , basis_, variables_info_,< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   basis_factorization_, & random_),< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   entering_variable_(variables_info_, & random_, & reduced_costs_,< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   & primal_edge_norms_),< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   num_iterations_(0),< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   num_feasibility_iterations_(0),< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   num_optimization_iterations_(0),< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   total_time_(0.0),< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   feasibility_time_(0.0),< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   optimization_time_(0.0),< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   last_deterministic_time_update_(0.0),< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   iteration_stats_(),< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   ratio_test_stats_(),< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   function_stats_(< span class = "stringliteral" > " SimplexFunctionStats" < / span > ),< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   parameters_(),< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   test_lu_(),< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   feasibility_phase_(true),< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   random_(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a79a952bdd960fc4d23c32edea03bb8c0" > kDeterministicSeed< / a > ) {< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   }< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ace96e115f468d752a2fcfeea901b0f8a" > 120< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ace96e115f468d752a2fcfeea901b0f8a" > RevisedSimplex::ClearStateForNextSolve< / a > () {< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   solution_state_.< a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f" > statuses< / a > .< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   }< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac4d90743acfe39707571f84f096a58d7" > 125< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac4d90743acfe39707571f84f096a58d7" > RevisedSimplex::LoadStateForNextSolve< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html" > BasisState< / a > & state) {< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   solution_state_ = state;< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   solution_state_has_been_set_externally_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   }< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aa637d435b14a562f8203eb808add5399" > 131< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aa637d435b14a562f8203eb808add5399" > RevisedSimplex::NotifyThatMatrixIsUnchangedForNextSolve< / a > () {< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   notify_that_matrix_is_unchanged_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   }< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a866a68af5afd0355fb348f7a59eeff9e" > 135< / a > < / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html" > Status< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a866a68af5afd0355fb348f7a59eeff9e" > RevisedSimplex::Solve< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > & lp, < a class = "code" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ) {< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (lp.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5e016d204d43b2cc4a2773c25462968a" > IsCleanedUp< / a > ());< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "keywordflow" > if< / span > (!lp.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2980fe48a1c9d1d0a792bc343314b9ba" > IsInEquationForm< / a > ()) {< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html" > Status< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a59e56af19e754a6aa26a612ebf91d05fa79a0e04dceac3db90cc878d11c6cfa55" > Status::ERROR_INVALID_PROBLEM< / a > ,< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < span class = "stringliteral" > " The problem is not in the equations form." < / span > );< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   }< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   Cleanup update_deterministic_time_on_return(< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   [< span class = "keyword" > this< / span > , < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ]() { AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ); });< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "comment" > // Initialization. Note That Initialize() must be called first since it< / span > < / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "comment" > // analyzes the current solver state.< / span > < / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > start_time = < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> GetElapsedTime();< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (Initialize(lp));< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   dual_infeasibility_improvement_direction_.< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#ab9adfea0e765ab447b8ce7730a6cd812" > Invalidate< / a > ();< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   test_lu_.< a class = "code" href = "classoperations__research_1_1glop_1_1_lu_factorization.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > ;< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   feasibility_phase_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   num_iterations_ = 0;< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   num_feasibility_iterations_ = 0;< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   num_optimization_iterations_ = 0;< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   feasibility_time_ = 0.0;< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   optimization_time_ = 0.0;< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   total_time_ = 0.0;< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < span class = "comment" > // In case we abort because of an error, we cannot assume that the current< / span > < / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "comment" > // solution state will be in sync with all our internal data structure. In< / span > < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "comment" > // case we abort without resetting it, setting this allow us to still use the< / span > < / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "comment" > // previous state info, but we will double-check everything.< / span > < / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   solution_state_has_been_set_externally_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1)) {< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   ComputeNumberOfEmptyRows();< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   ComputeNumberOfEmptyColumns();< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   DisplayBasicVariableStatistics();< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   DisplayProblem();< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   }< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < span class = "keywordflow" > if< / span > (absl::GetFlag(FLAGS_simplex_stop_after_first_basis)) {< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   DisplayAllStats();< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   }< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > use_dual = parameters_.use_dual_simplex();< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > log_info = parameters_.log_search_progress() || < a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1);< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keywordflow" > if< / span > (log_info) {< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " ------ " < / span > < < (use_dual ? < span class = "stringliteral" > " Dual simplex." < / span > : < span class = "stringliteral" > " Primal simplex." < / span > );< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " The matrix has " < / span > < < compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a960110e64357a3e69162ebf1f71959dd" > num_rows< / a > () < < < span class = "stringliteral" > " rows, " < / span > < / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < < compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a41741829541d089f1c4d34f190884813" > num_cols< / a > () < < < span class = "stringliteral" > " columns, " < / span > < / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < < compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () < < < span class = "stringliteral" > " entries." < / span > ;< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   }< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "comment" > // TODO(user): Avoid doing the first phase checks when we know from the< / span > < / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "comment" > // incremental solve that the solution is already dual or primal feasible.< / span > < / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < span class = "keywordflow" > if< / span > (log_info) < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " ------ First phase: feasibility." < / span > ;< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#ad3a8fd026015306e23a8ed6889b48f18" > SetPricingRule< / a > (parameters_.feasibility_rule());< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < span class = "keywordflow" > if< / span > (use_dual) {< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < span class = "keywordflow" > if< / span > (parameters_.perturb_costs_in_dual_simplex()) {< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a30f0ce948222e17e5992ebd66493316e" > PerturbCosts< / a > ();< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   }< / div >
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< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < / div >
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< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a7aec5aa12d972d66a67d267aa9dd1b97" > MakeBoxedVariableRelevant< / a > (< span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (DualMinimize(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ));< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   DisplayIterationInfo();< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < / div >
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< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "keywordflow" > if< / span > (problem_status_ != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a1583be76ac58a4ac4c024f73b3d85811" > ProblemStatus::DUAL_INFEASIBLE< / a > ) {< / div >
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< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "comment" > // Note(user): In most cases, the matrix will already be refactorized and< / span > < / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "comment" > // both Refactorize() and PermuteBasis() will do nothing. However, if the< / span > < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "comment" > // time limit is reached during the first phase, this might not be the< / span > < / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < span class = "comment" > // case and RecomputeBasicVariableValues() below DCHECKs that the matrix< / span > < / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "comment" > // is refactorized. This is not required, but we currently only want to< / span > < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < span class = "comment" > // recompute values from scratch when the matrix was just refactorized to< / span > < / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "comment" > // maximize precision.< / span > < / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a39b7e347f32f4024a988cb93f5e81a2d" > Refactorize< / a > ());< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   PermuteBasis();< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a7aec5aa12d972d66a67d267aa9dd1b97" > MakeBoxedVariableRelevant< / a > (< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a4d2715d1aa0805cc72a6fdd909b575a2" > MakeReducedCostsPrecise< / a > ();< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "comment" > // This is needed to display errors properly.< / span > < / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   MakeBoxedVariableDualFeasible(variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a505af340486fcf70ee83abb32e31a628" > GetNonBasicBoxedVariables< / a > (),< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   < span class = "comment" > /*update_basic_values=*/< / span > < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a9323beaddf591680b191fa618c40519f" > ResetPrimalInfeasibilityInformation< / a > ();< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   }< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aaa112dadb998636c5ccca0cf93c044f0" > MaintainDualInfeasiblePositions< / a > (< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (Minimize(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ));< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   DisplayIterationInfo();< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "comment" > // After the primal phase I, we need to restore the objective.< / span > < / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < span class = "keywordflow" > if< / span > (problem_status_ != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a7850fcfea005b86b2a3fa0d4293c5ee0" > ProblemStatus::PRIMAL_INFEASIBLE< / a > ) {< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   InitializeObjectiveAndTestIfUnchanged(lp);< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a385e5d3d11acfdf7a24318aaba18589c" > ResetForNewObjective< / a > ();< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   }< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   }< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   < / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < span class = "comment" > // Reduced costs must be explicitly recomputed because DisplayErrors() is< / span > < / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < span class = "comment" > // const.< / span > < / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "comment" > // TODO(user): This API is not really nice.< / span > < / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   DisplayErrors();< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   feasibility_phase_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   feasibility_time_ = < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> GetElapsedTime() - start_time;< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#ad3a8fd026015306e23a8ed6889b48f18" > SetPricingRule< / a > (parameters_.optimization_rule());< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   num_feasibility_iterations_ = num_iterations_;< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   < / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < span class = "keywordflow" > if< / span > (log_info) < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " ------ Second phase: optimization." < / span > ;< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   < / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < span class = "comment" > // Because of shifts or perturbations, we may need to re-run a dual simplex< / span > < / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   < span class = "comment" > // after the primal simplex finished, or the opposite.< / span > < / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "comment" > // We alter between solving with primal and dual Phase II algorithm as long as< / span > < / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < span class = "comment" > // time limit permits *and* we did not yet achieve the desired precision.< / span > < / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < span class = "comment" > // I.e., we run iteration i if the solution from iteration i-1 was not precise< / span > < / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < span class = "comment" > // after we removed the bound and cost shifts and perturbations.< / span > < / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < span class = "comment" > // NOTE(user): We may still hit the limit of max_number_of_reoptimizations()< / span > < / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < span class = "comment" > // which means the status returned can be PRIMAL_FEASIBLE or DUAL_FEASIBLE< / span > < / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "comment" > // (i.e., these statuses are not necesserily a consequence of hitting a time< / span > < / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < span class = "comment" > // limit).< / span > < / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > num_optims = 0;< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   < span class = "comment" > // We want to enter the loop when both num_optims and num_iterations_ are< / span > < / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   < span class = "comment" > // *equal* to the corresponding limits (to return a meaningful status< / span > < / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < span class = "comment" > // when the limits are set to 0).< / span > < / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   num_optims < = parameters_.max_number_of_reoptimizations() & & < / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   !objective_limit_reached_ & & < / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   (num_iterations_ == 0 ||< / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   num_iterations_ < parameters_.max_number_of_iterations()) & & < / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   !< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> LimitReached() & & < / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   !absl::GetFlag(FLAGS_simplex_stop_after_feasibility) & & < / div >
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< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ||< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > ProblemStatus::DUAL_FEASIBLE< / a > );< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   ++num_optims) {< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < span class = "keywordflow" > if< / span > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ) {< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < span class = "comment" > // Run the primal simplex.< / span > < / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aaa112dadb998636c5ccca0cf93c044f0" > MaintainDualInfeasiblePositions< / a > (< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (Minimize(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ));< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   < span class = "comment" > // Run the dual simplex.< / span > < / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aaa112dadb998636c5ccca0cf93c044f0" > MaintainDualInfeasiblePositions< / a > (< span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (DualMinimize(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ));< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   }< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   < span class = "comment" > // Minimize() or DualMinimize() always double check the result with maximum< / span > < / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   < span class = "comment" > // precision by refactoring the basis before exiting (except if an< / span > < / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   < span class = "comment" > // iteration or time limit was reached).< / span > < / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ||< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > ProblemStatus::DUAL_FEASIBLE< / a > ||< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ());< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   < span class = "comment" > // If SetIntegralityScale() was called, we preform a polish operation.< / span > < / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keywordflow" > if< / span > (!integrality_scale_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a644718bb2fb240de962dc3c9a1fdf0dc" > empty< / a > () & & < / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > ProblemStatus::OPTIMAL< / a > ) {< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aaa112dadb998636c5ccca0cf93c044f0" > MaintainDualInfeasiblePositions< / a > (< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (Polish(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ));< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   }< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "comment" > // Remove the bound and cost shifts (or perturbations).< / span > < / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   < span class = "comment" > // Note(user): Currently, we never do both at the same time, so we could< / span > < / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < span class = "comment" > // be a bit faster here, but then this is quick anyway.< / span > < / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#aef157eaaacfc6e27520ad528d5067e25" > ResetAllNonBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a39b7e347f32f4024a988cb93f5e81a2d" > Refactorize< / a > ());< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   PermuteBasis();< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > ClearAndRemoveCostShifts< / a > ();< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   < / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   < span class = "comment" > // Reduced costs must be explicitly recomputed because DisplayErrors() is< / span > < / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   < span class = "comment" > // const.< / span > < / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   < span class = "comment" > // TODO(user): This API is not really nice.< / span > < / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   DisplayIterationInfo();< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   DisplayErrors();< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   < span class = "comment" > // TODO(user): We should also confirm the PRIMAL_UNBOUNDED or DUAL_UNBOUNDED< / span > < / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "comment" > // status by checking with the other phase I that the problem is really< / span > < / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < span class = "comment" > // DUAL_INFEASIBLE or PRIMAL_INFEASIBLE. For instance we currently report< / span > < / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < span class = "comment" > // PRIMAL_UNBOUNDED with the primal on the problem l30.mps instead of< / span > < / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < span class = "comment" > // OPTIMAL and the dual does not have issues on this problem.< / span > < / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "keywordflow" > if< / span > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > ) {< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = parameters_.solution_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < span class = "keywordflow" > if< / span > (reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a3ec5e60bd3a327da7d43d0d5ba21ab17" > ComputeMaximumDualResidual< / a > () > tolerance ||< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > () > tolerance ||< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa84a93c1b6159eaddded3370f434aae8" > ComputeMaximumDualInfeasibility< / a > () > tolerance) {< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "keywordflow" > if< / span > (log_info) {< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " DUAL_UNBOUNDED was reported, but the residual and/or " < / span > < / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < < < span class = "stringliteral" > " dual infeasibility is above the tolerance" < / span > ;< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   }< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   }< / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   }< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   < / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < span class = "comment" > // Change the status, if after the shift and perturbation removal the< / span > < / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   < span class = "comment" > // problem is not OPTIMAL anymore.< / span > < / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < span class = "keywordflow" > if< / span > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > ProblemStatus::OPTIMAL< / a > ) {< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > solution_tolerance =< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   parameters_.solution_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > () > < / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   solution_tolerance ||< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a3ec5e60bd3a327da7d43d0d5ba21ab17" > ComputeMaximumDualResidual< / a > () > solution_tolerance) {< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   < span class = "keywordflow" > if< / span > (log_info) {< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " OPTIMAL was reported, yet one of the residuals is " < / span > < / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   < span class = "stringliteral" > " above the solution feasibility tolerance after the " < / span > < / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "stringliteral" > " shift/perturbation are removed." < / span > ;< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   }< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < span class = "keywordflow" > if< / span > (parameters_.change_status_to_imprecise()) {< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > ProblemStatus::IMPRECISE< / a > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   }< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "comment" > // We use the " precise" tolerances here to try to report the best< / span > < / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "comment" > // possible solution.< / span > < / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > primal_tolerance =< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > dual_tolerance =< / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   parameters_.dual_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > primal_infeasibility =< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a198b526739f420eb0959c87c54e036b3" > ComputeMaximumPrimalInfeasibility< / a > ();< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > dual_infeasibility =< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa84a93c1b6159eaddded3370f434aae8" > ComputeMaximumDualInfeasibility< / a > ();< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   < span class = "keywordflow" > if< / span > (primal_infeasibility > primal_tolerance & & < / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   dual_infeasibility > dual_tolerance) {< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < span class = "keywordflow" > if< / span > (log_info) {< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " OPTIMAL was reported, yet both of the infeasibility " < / span > < / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   < span class = "stringliteral" > " are above the tolerance after the " < / span > < / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   < span class = "stringliteral" > " shift/perturbation are removed." < / span > ;< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   }< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   < span class = "keywordflow" > if< / span > (parameters_.change_status_to_imprecise()) {< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > ProblemStatus::IMPRECISE< / a > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   }< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (primal_infeasibility > primal_tolerance) {< / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   < span class = "keywordflow" > if< / span > (log_info) < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Re-optimizing with dual simplex ... " < / span > ;< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > ProblemStatus::DUAL_FEASIBLE< / a > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (dual_infeasibility > dual_tolerance) {< / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < span class = "keywordflow" > if< / span > (log_info) < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Re-optimizing with primal simplex ... " < / span > ;< / div >
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< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ;< / div >
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< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   }< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   }< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   }< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   }< / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "comment" > // Check that the return status is " precise" .< / span > < / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   < span class = "comment" > // TODO(user): we curretnly skip the DUAL_INFEASIBLE status because the< / span > < / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < span class = "comment" > // quantities are not up to date in this case.< / span > < / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < span class = "keywordflow" > if< / span > (parameters_.change_status_to_imprecise() & & < / div >
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< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   problem_status_ != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a1583be76ac58a4ac4c024f73b3d85811" > ProblemStatus::DUAL_INFEASIBLE< / a > ) {< / div >
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< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = parameters_.solution_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > () > tolerance ||< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a3ec5e60bd3a327da7d43d0d5ba21ab17" > ComputeMaximumDualResidual< / a > () > tolerance) {< / div >
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< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > ProblemStatus::IMPRECISE< / a > ;< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > ProblemStatus::DUAL_FEASIBLE< / a > ||< / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > ||< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a7850fcfea005b86b2a3fa0d4293c5ee0" > ProblemStatus::PRIMAL_INFEASIBLE< / a > ) {< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   < span class = "keywordflow" > if< / span > (reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa84a93c1b6159eaddded3370f434aae8" > ComputeMaximumDualInfeasibility< / a > () > tolerance) {< / div >
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< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > ProblemStatus::IMPRECISE< / a > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   }< / div >
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< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ||< / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8351cc0ea544c393b3e26fdf42520844" > ProblemStatus::PRIMAL_UNBOUNDED< / a > ||< / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a1583be76ac58a4ac4c024f73b3d85811" > ProblemStatus::DUAL_INFEASIBLE< / a > ) {< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a198b526739f420eb0959c87c54e036b3" > ComputeMaximumPrimalInfeasibility< / a > () > tolerance) {< / div >
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< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > ProblemStatus::IMPRECISE< / a > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   }< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   }< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   }< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   < / div >
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< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < span class = "comment" > // Store the result for the solution getters.< / span > < / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   SaveState();< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   solution_objective_value_ = ComputeInitialProblemObjectiveValue();< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   solution_dual_values_ = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aafa77a9d37843a7c27694231735465bc" > GetDualValues< / a > ();< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   solution_reduced_costs_ = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   < span class = "keywordflow" > if< / span > (lp.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > IsMaximizationProblem< / a > ()) {< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7ff1f9383648fd132667b1e601229c9" > ChangeSign< / a > (& solution_dual_values_);< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7ff1f9383648fd132667b1e601229c9" > ChangeSign< / a > (& solution_reduced_costs_);< / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   }< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   < / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   < span class = "comment" > // If the problem is unbounded, set the objective value to +/- infinity.< / span > < / div >
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< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   < span class = "keywordflow" > if< / span > (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > ||< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8351cc0ea544c393b3e26fdf42520844" > ProblemStatus::PRIMAL_UNBOUNDED< / a > ) {< / div >
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< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   solution_objective_value_ =< / div >
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< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   (problem_status_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > ) ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > < / div >
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< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   : -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ;< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   < span class = "keywordflow" > if< / span > (lp.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > IsMaximizationProblem< / a > ()) {< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   solution_objective_value_ = -solution_objective_value_;< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   }< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   }< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   < / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   total_time_ = < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> GetElapsedTime() - start_time;< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   optimization_time_ = total_time_ - feasibility_time_;< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   num_optimization_iterations_ = num_iterations_ - num_feasibility_iterations_;< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   DisplayAllStats();< / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   }< / div >
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< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39" > 433< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > ProblemStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39" > RevisedSimplex::GetProblemStatus< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   < span class = "keywordflow" > return< / span > problem_status_;< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   }< / div >
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< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a96c1f660991b5007ca24564f69cd27b8" > 437< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a96c1f660991b5007ca24564f69cd27b8" > RevisedSimplex::GetObjectiveValue< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   < span class = "keywordflow" > return< / span > solution_objective_value_;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   }< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3269053b931945d67fbd50f3bd95f37f" > 441< / a > < / span >   < a class = "code" href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3269053b931945d67fbd50f3bd95f37f" > RevisedSimplex::GetNumberOfIterations< / a > ()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > num_iterations_; }< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ace91e968c3b7369698c7563ca1c9c6e8" > 443< / a > < / span >   RowIndex < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ace91e968c3b7369698c7563ca1c9c6e8" > RevisedSimplex::GetProblemNumRows< / a > ()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > num_rows_; }< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac226833fbf53fdb3fb7b6ef9d89a0e4c" > 445< / a > < / span >   ColIndex < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac226833fbf53fdb3fb7b6ef9d89a0e4c" > RevisedSimplex::GetProblemNumCols< / a > ()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > num_cols_; }< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   < / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a201108c6e8d9fb5104697bdd0a8bd085" > 447< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a201108c6e8d9fb5104697bdd0a8bd085" > RevisedSimplex::GetVariableValue< / a > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < span class = "keywordflow" > return< / span > variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   }< / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   < / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a52c80b8028f6d54f8b2c02da3aac7510" > 451< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a52c80b8028f6d54f8b2c02da3aac7510" > RevisedSimplex::GetReducedCost< / a > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   < span class = "keywordflow" > return< / span > solution_reduced_costs_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   }< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   < / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a26689abee13abb7fc0d0cf99c1c7809b" > 455< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a26689abee13abb7fc0d0cf99c1c7809b" > RevisedSimplex::GetReducedCosts< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   < span class = "keywordflow" > return< / span > solution_reduced_costs_;< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   }< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aa4c5e551e5a00ff4ae97d8467184221b" > 459< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aa4c5e551e5a00ff4ae97d8467184221b" > RevisedSimplex::GetDualValue< / a > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   < span class = "keywordflow" > return< / span > solution_dual_values_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   }< / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   < / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a4802169fde637478bebd1b420eec8ff8" > 463< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a4802169fde637478bebd1b420eec8ff8" > RevisedSimplex::GetVariableStatus< / a > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   < span class = "keywordflow" > return< / span > variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   }< / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#adfbae19f81ecf38f67643dc8b7dcec25" > 467< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html" > BasisState< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#adfbae19f81ecf38f67643dc8b7dcec25" > RevisedSimplex::GetState< / a > ()< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > solution_state_; }< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   < / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3f6696618f5f850c805b361aa0c8bd7e" > 469< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3f6696618f5f850c805b361aa0c8bd7e" > RevisedSimplex::GetConstraintActivity< / a > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   < span class = "comment" > // Note the negative sign since the slack variable is such that< / span > < / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   < span class = "comment" > // constraint_activity + slack_value = 0.< / span > < / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   < span class = "keywordflow" > return< / span > -variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ));< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   }< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   < / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac0064327c37c56b93e86a91a1d64fd96" > 475< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac0064327c37c56b93e86a91a1d64fd96" > RevisedSimplex::GetConstraintStatus< / a > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < span class = "comment" > // The status of the given constraint is the same as the status of the< / span > < / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < span class = "comment" > // associated slack variable with a change of sign.< / span > < / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > s = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ()[SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )];< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   < span class = "keywordflow" > if< / span > (s == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   }< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   < span class = "keywordflow" > if< / span > (s == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   }< / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7a106449441d3fd61aa70916a147a7d" > VariableToConstraintStatus< / a > (s);< / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   }< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3854b494976761a458a17523bb4fe5cf" > 488< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3854b494976761a458a17523bb4fe5cf" > RevisedSimplex::GetPrimalRay< / a > ()< span class = "keyword" > const < / span > {< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (problem_status_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8351cc0ea544c393b3e26fdf42520844" > ProblemStatus::PRIMAL_UNBOUNDED< / a > );< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   < span class = "keywordflow" > return< / span > solution_primal_ray_;< / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   }< / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a66da73868da92948f57a83e261066ca6" > 492< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a66da73868da92948f57a83e261066ca6" > RevisedSimplex::GetDualRay< / a > ()< span class = "keyword" > const < / span > {< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (problem_status_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > );< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   < span class = "keywordflow" > return< / span > solution_dual_ray_;< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   }< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a0e35521f3d40e263173626ecc8c21b06" > 497< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a0e35521f3d40e263173626ecc8c21b06" > RevisedSimplex::GetDualRayRowCombination< / a > ()< span class = "keyword" > const < / span > {< / div >
2021-01-26 11:28:50 +01:00
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (problem_status_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > );< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   < span class = "keywordflow" > return< / span > solution_dual_ray_row_combination_;< / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   }< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   < / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae15a49e0cab69203efca232f0b32866d" > 502< / a > < / span >   ColIndex < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae15a49e0cab69203efca232f0b32866d" > RevisedSimplex::GetBasis< / a > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )< span class = "keyword" > const < / span > { < span class = "keywordflow" > return< / span > basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]; }< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   < / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ad463af979d0c220bb473d4f8df2ec345" > 504< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html" > BasisFactorization< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ad463af979d0c220bb473d4f8df2ec345" > RevisedSimplex::GetBasisFactorization< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a56d08f5289eea3f018dca5b93b6fca6b" > GetColumnPermutation< / a > ().< a class = "code" href = "classoperations__research_1_1glop_1_1_permutation.html#a644718bb2fb240de962dc3c9a1fdf0dc" > empty< / a > ());< / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   < span class = "keywordflow" > return< / span > basis_factorization_;< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   }< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   < / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   std::string RevisedSimplex::GetPrettySolverStats()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   < span class = "keywordflow" > return< / span > absl::StrFormat(< / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   < span class = "stringliteral" > " Problem status : %s\n" < / span > < / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   < span class = "stringliteral" > " Solving time : %-6.4g\n" < / span > < / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   < span class = "stringliteral" > " Number of iterations : %u\n" < / span > < / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   < span class = "stringliteral" > " Time for solvability (first phase) : %-6.4g\n" < / span > < / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   < span class = "stringliteral" > " Number of iterations for solvability : %u\n" < / span > < / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   < span class = "stringliteral" > " Time for optimization : %-6.4g\n" < / span > < / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   < span class = "stringliteral" > " Number of iterations for optimization : %u\n" < / span > < / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < span class = "stringliteral" > " Stop after first basis : %d\n" < / span > ,< / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a509c4e359e6f7041eddfac3f1c46a92f" > GetProblemStatusString< / a > (problem_status_), total_time_, num_iterations_,< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   feasibility_time_, num_feasibility_iterations_, optimization_time_,< / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   num_optimization_iterations_,< / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   absl::GetFlag(FLAGS_simplex_stop_after_first_basis));< / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   }< / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   < / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aeccc8138b268e621d96d105e0ddd474a" > 525< / a > < / span >   < span class = "keywordtype" > double< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aeccc8138b268e621d96d105e0ddd474a" > RevisedSimplex::DeterministicTime< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   < span class = "comment" > // TODO(user): Also take into account the dual edge norms and the reduced cost< / span > < / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   < span class = "comment" > // updates.< / span > < / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   < span class = "keywordflow" > return< / span > basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aeccc8138b268e621d96d105e0ddd474a" > DeterministicTime< / a > () +< / div >
< div class = "line" > < a name = "l00529" > < / a > < span class = "lineno" > 529< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#aeccc8138b268e621d96d105e0ddd474a" > DeterministicTime< / a > () +< / div >
< div class = "line" > < a name = "l00530" > < / a > < span class = "lineno" > 530< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aeccc8138b268e621d96d105e0ddd474a" > DeterministicTime< / a > ();< / div >
< div class = "line" > < a name = "l00531" > < / a > < span class = "lineno" > 531< / span >   }< / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > 532< / span >   < / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::SetVariableNames() {< / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   variable_name_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_cols_, < span class = "stringliteral" > " " < / span > );< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < first_slack_col_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   < span class = "keyword" > const< / span > ColIndex var_index = < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > + 1;< / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = absl::StrFormat(< span class = "stringliteral" > " x%d" < / span > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a62b2a1c80c429da3975f1d948f7c27df" > ColToIntIndex< / a > (var_index));< / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   }< / div >
< div class = "line" > < a name = "l00539" > < / a > < span class = "lineno" > 539< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (first_slack_col_); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00540" > < / a > < span class = "lineno" > 540< / span >   < span class = "keyword" > const< / span > ColIndex var_index = < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > - first_slack_col_ + 1;< / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = absl::StrFormat(< span class = "stringliteral" > " s%d" < / span > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a62b2a1c80c429da3975f1d948f7c27df" > ColToIntIndex< / a > (var_index));< / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   }< / div >
< div class = "line" > < a name = "l00543" > < / a > < span class = "lineno" > 543< / span >   }< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00544" > < / a > < span class = "lineno" > 544< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > RevisedSimplex::ComputeDefaultVariableStatus(< / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   < a class = "code" href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > DCHECK_COL_BOUNDS< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l00550" > < / a > < span class = "lineno" > 550< / span >   }< / div >
< div class = "line" > < a name = "l00551" > < / a > < span class = "lineno" > 551< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > & & upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l00552" > < / a > < span class = "lineno" > 552< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ;< / div >
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   }< / div >
< div class = "line" > < a name = "l00554" > < / a > < span class = "lineno" > 554< / span >   < / div >
< div class = "line" > < a name = "l00555" > < / a > < span class = "lineno" > 555< / span >   < span class = "comment" > // Returns the bound with the lowest magnitude. Note that it must be finite< / span > < / div >
< div class = "line" > < a name = "l00556" > < / a > < span class = "lineno" > 556< / span >   < span class = "comment" > // because the VariableStatus::FREE case was tested earlier.< / span > < / div >
< div class = "line" > < a name = "l00557" > < / a > < span class = "lineno" > 557< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) || < a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   < span class = "keywordflow" > return< / span > std::abs(lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < = std::abs(upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ])< / div >
< div class = "line" > < a name = "l00559" > < / a > < span class = "lineno" > 559< / span >   ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l00560" > < / a > < span class = "lineno" > 560< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l00561" > < / a > < span class = "lineno" > 561< / span >   }< / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   < / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::SetNonBasicVariableStatusAndDeriveValue(< / div >
< div class = "line" > < a name = "l00564" > < / a > < span class = "lineno" > 564< / span >   ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status) {< / div >
< div class = "line" > < a name = "l00565" > < / a > < span class = "lineno" > 565< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a84dcc462db65072ec3a28b87bb3cd3ad" > UpdateToNonBasicStatus< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , status);< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a102a587506447ec5cba544b93a1877e0" > SetNonBasicVariableValueFromStatus< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   }< / div >
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   < / div >
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::BasisIsConsistent()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#aaf3efa52c50a245bf2fc964386a15d49" > DenseBitRow< / a > & is_basic = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > GetIsBasicBitRow< / a > ();< / div >
< div class = "line" > < a name = "l00571" > < / a > < span class = "lineno" > 571< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a6d0540e510c4225b196d87b16f2721a8" > VariableStatusRow< / a > & variable_statuses = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ();< / div >
< div class = "line" > < a name = "l00572" > < / a > < span class = "lineno" > 572< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   < span class = "keywordflow" > if< / span > (!is_basic.IsSet(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   < span class = "keywordflow" > if< / span > (variable_statuses[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   }< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   ColIndex cols_in_basis(0);< / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   ColIndex cols_not_in_basis(0);< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   cols_in_basis += is_basic.IsSet(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   cols_not_in_basis += !is_basic.IsSet(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   < span class = "keywordflow" > if< / span > (is_basic.IsSet(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) !=< / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   (variable_statuses[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > )) {< / div >
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   }< / div >
< div class = "line" > < a name = "l00586" > < / a > < span class = "lineno" > 586< / span >   }< / div >
< div class = "line" > < a name = "l00587" > < / a > < span class = "lineno" > 587< / span >   < span class = "keywordflow" > if< / span > (cols_in_basis != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (num_rows_)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00588" > < / a > < span class = "lineno" > 588< / span >   < span class = "keywordflow" > if< / span > (cols_not_in_basis != num_cols_ - < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (num_rows_)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00589" > < / a > < span class = "lineno" > 589< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   }< / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   < / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   < span class = "comment" > // Note(user): The basis factorization is not updated by this function but by< / span > < / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   < span class = "comment" > // UpdateAndPivot().< / span > < / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::UpdateBasis(ColIndex entering_col, RowIndex basis_row,< / div >
< div class = "line" > < a name = "l00595" > < / a > < span class = "lineno" > 595< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > leaving_variable_status) {< / div >
< div class = "line" > < a name = "l00596" > < / a > < span class = "lineno" > 596< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   < a class = "code" href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > DCHECK_COL_BOUNDS< / a > (entering_col);< / div >
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   < a class = "code" href = "revised__simplex_8cc.html#a8806083a7bf6a4ee4a4976c226b93788" > DCHECK_ROW_BOUNDS< / a > (basis_row);< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   < / div >
< div class = "line" > < a name = "l00600" > < / a > < span class = "lineno" > 600< / span >   < span class = "comment" > // Check that this is not called with an entering_col already in the basis< / span > < / div >
< div class = "line" > < a name = "l00601" > < / a > < span class = "lineno" > 601< / span >   < span class = "comment" > // and that the leaving col is indeed in the basis.< / span > < / div >
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (!variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > GetIsBasicBitRow< / a > ().< a class = "code" href = "classoperations__research_1_1_bitset64.html#aa454a4099ee887726b8f5b4a8ed1a81d" > IsSet< / a > (entering_col));< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (basis_[basis_row], entering_col);< / div >
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (basis_[basis_row], < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   < / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[basis_row];< / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > GetIsBasicBitRow< / a > ().< a class = "code" href = "classoperations__research_1_1_bitset64.html#aa454a4099ee887726b8f5b4a8ed1a81d" > IsSet< / a > (leaving_col));< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   < / div >
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   < span class = "comment" > // Make leaving_col leave the basis and update relevant data.< / span > < / div >
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   < span class = "comment" > // Note thate the leaving variable value is not necessarily at its exact< / span > < / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   < span class = "comment" > // bound, which is like a bound shift.< / span > < / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ae636e3fb39ec1660660286628306cd15" > Update< / a > (leaving_col, leaving_variable_status);< / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (leaving_variable_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ||< / div >
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   leaving_variable_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ||< / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   leaving_variable_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > );< / div >
< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   < / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   basis_[basis_row] = entering_col;< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ae636e3fb39ec1660660286628306cd15" > Update< / a > (entering_col, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > );< / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#ab9adfea0e765ab447b8ce7730a6cd812" > Invalidate< / a > ();< / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   }< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   < / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < span class = "comment" > // Comparator used to sort column indices according to a given value vector.< / span > < / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   < span class = "keyword" > class < / span > ColumnComparator {< / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   < span class = "keyword" > explicit< / span > ColumnComparator(< span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) : value_(< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) {}< / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   < span class = "keywordtype" > bool< / span > operator()(ColIndex col_a, ColIndex col_b)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00629" > < / a > < span class = "lineno" > 629< / span >   < span class = "keywordflow" > return< / span > value_[col_a] < value_[col_b];< / div >
< div class = "line" > < a name = "l00630" > < / a > < span class = "lineno" > 630< / span >   }< / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / span >   < / div >
< div class = "line" > < a name = "l00632" > < / a > < span class = "lineno" > 632< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00633" > < / a > < span class = "lineno" > 633< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & value_;< / div >
< div class = "line" > < a name = "l00634" > < / a > < span class = "lineno" > 634< / span >   };< / div >
< div class = "line" > < a name = "l00635" > < / a > < span class = "lineno" > 635< / span >   < / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   < / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   < span class = "comment" > // To understand better what is going on in this function, let us say that this< / span > < / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   < span class = "comment" > // algorithm will produce the optimal solution to a problem containing only< / span > < / div >
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   < span class = "comment" > // singleton columns (provided that the variables start at the minimum possible< / span > < / div >
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   < span class = "comment" > // cost, see ComputeDefaultVariableStatus()). This is unit tested.< / span > < / div >
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   < span class = "comment" > // The error_ must be equal to the constraint activity for the current variable< / span > < / div >
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   < span class = "comment" > // values before this function is called. If error_[row] is 0.0, that mean this< / span > < / div >
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   < span class = "comment" > // constraint is currently feasible.< / span > < / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::UseSingletonColumnInInitialBasis(< a class = "code" href = "namespaceoperations__research_1_1glop.html#ad73165f71f932e8ccc240d4db5097803" > RowToColMapping< / a > * basis) {< / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00648" > < / a > < span class = "lineno" > 648< / span >   < span class = "comment" > // Computes the singleton columns and the cost variation of the corresponding< / span > < / div >
< div class = "line" > < a name = "l00649" > < / a > < span class = "lineno" > 649< / span >   < span class = "comment" > // variables (in the only possible direction, i.e away from its current bound)< / span > < / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   < span class = "comment" > // for a unit change in the infeasibility of the corresponding row.< / span > < / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   < span class = "comment" > // Note that the slack columns will be treated as normal singleton columns.< / span > < / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   std::vector< ColIndex> singleton_column;< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > cost_variation(num_cols_, 0.0);< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / span >   < span class = "keywordflow" > if< / span > (compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () != 1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00657" > < / a > < span class = "lineno" > 657< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00658" > < / a > < span class = "lineno" > 658< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > slope = compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#ae7c152aafe19515204c65dadcdc876d6" > GetFirstCoefficient< / a > ();< / div >
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) == lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   cost_variation[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] / std::abs(slope);< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   cost_variation[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = -objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] / std::abs(slope);< / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   }< / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   singleton_column.push_back(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   }< / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   < span class = "keywordflow" > if< / span > (singleton_column.empty()) < span class = "keywordflow" > return< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00667" > < / a > < span class = "lineno" > 667< / span >   < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00668" > < / a > < span class = "lineno" > 668< / span >   < span class = "comment" > // Sort the singleton columns for the case where many of them correspond to< / span > < / div >
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > 669< / span >   < span class = "comment" > // the same row (equivalent to a piecewise-linear objective on this variable).< / span > < / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   < span class = "comment" > // Negative cost_variation first since moving the singleton variable away from< / span > < / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   < span class = "comment" > // its current bound means the least decrease in the objective function for< / span > < / div >
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / span >   < span class = "comment" > // the same " error" variation.< / span > < / div >
< div class = "line" > < a name = "l00673" > < / a > < span class = "lineno" > 673< / span >   ColumnComparator comparator(cost_variation);< / div >
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   std::sort(singleton_column.begin(), singleton_column.end(), comparator);< / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   < a class = "code" href = "base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2" > DCHECK_LE< / a > (cost_variation[singleton_column.front()],< / div >
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   cost_variation[singleton_column.back()]);< / div >
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   < / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   < span class = "comment" > // Use a singleton column to " absorb" the error when possible to avoid< / span > < / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   < span class = "comment" > // introducing unneeded artificial variables. Note that with scaling on, the< / span > < / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   < span class = "comment" > // only possible coefficient values are 1.0 or -1.0 (or maybe epsilon close to< / span > < / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   < span class = "comment" > // them) and that the SingletonColumnSignPreprocessor makes them all positive.< / span > < / div >
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   < span class = "comment" > // However, this code works for any coefficient value.< / span > < / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & variable_values = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > GetDenseRow< / a > ();< / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : singleton_column) {< / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#aedc46de5199e203b77de2eae2e4c100d" > EntryRow< / a > (EntryIndex(0));< / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   < / div >
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   < span class = "comment" > // If no singleton columns have entered the basis for this row, choose the< / span > < / div >
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   < span class = "comment" > // first one. It will be the one with the least decrease in the objective< / span > < / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   < span class = "comment" > // function when it leaves the basis.< / span > < / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   < span class = "keywordflow" > if< / span > ((*basis)[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   (*basis)[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   }< / div >
< div class = "line" > < a name = "l00693" > < / a > < span class = "lineno" > 693< / span >   < / div >
< div class = "line" > < a name = "l00694" > < / a > < span class = "lineno" > 694< / span >   < span class = "comment" > // If there is already no error in this row (i.e. it is primal-feasible),< / span > < / div >
< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   < span class = "comment" > // there is nothing to do.< / span > < / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   < span class = "keywordflow" > if< / span > (error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == 0.0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   < / div >
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   < span class = "comment" > // In this case, all the infeasibility can be " absorbed" and this variable< / span > < / div >
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   < span class = "comment" > // may not be at one of its bound anymore, so we have to use it in the< / span > < / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   < span class = "comment" > // basis.< / span > < / div >
< div class = "line" > < a name = "l00701" > < / a > < span class = "lineno" > 701< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff =< / div >
< div class = "line" > < a name = "l00702" > < / a > < span class = "lineno" > 702< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#aaef7fc778a29bb3bb3040c0423937f6e" > EntryCoefficient< / a > (EntryIndex(0));< / div >
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_value = variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] + error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] / coeff;< / div >
< div class = "line" > < a name = "l00704" > < / a > < span class = "lineno" > 704< / span >   < span class = "keywordflow" > if< / span > (new_value > = lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] & & new_value < = upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00705" > < / a > < span class = "lineno" > 705< / span >   error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   < / div >
< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   < span class = "comment" > // Use this variable in the initial basis.< / span > < / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   (*basis)[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l00709" > < / a > < span class = "lineno" > 709< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00710" > < / a > < span class = "lineno" > 710< / span >   }< / div >
< div class = "line" > < a name = "l00711" > < / a > < span class = "lineno" > 711< / span >   < / div >
< div class = "line" > < a name = "l00712" > < / a > < span class = "lineno" > 712< / span >   < span class = "comment" > // The idea here is that if the singleton column cannot be used to " absorb" < / span > < / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   < span class = "comment" > // all error_[row], if it is boxed, it can still be used to make the< / span > < / div >
< div class = "line" > < a name = "l00714" > < / a > < span class = "lineno" > 714< / span >   < span class = "comment" > // infeasibility smaller (with a bound flip).< / span > < / div >
< div class = "line" > < a name = "l00715" > < / a > < span class = "lineno" > 715< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > box_width = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a611fb1da73c33e2716b380db980fa825" > GetBoundDifference< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (box_width, 0.0);< / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ], 0.0);< / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > error_sign = error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] / coeff;< / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   < span class = "keywordflow" > if< / span > (variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] & & error_sign > 0.0) {< / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (box_width));< / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] -= coeff * box_width;< / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   SetNonBasicVariableStatusAndDeriveValue(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ,< / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   }< / div >
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   < span class = "keywordflow" > if< / span > (variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] & & error_sign < 0.0) {< / div >
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (box_width));< / div >
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   error_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] += coeff * box_width;< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   SetNonBasicVariableStatusAndDeriveValue(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ,< / div >
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   }< / div >
< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   }< / div >
< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   }< / div >
< div class = "line" > < a name = "l00735" > < / a > < span class = "lineno" > 735< / span >   < / div >
< div class = "line" > < a name = "l00736" > < / a > < span class = "lineno" > 736< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::InitializeMatrixAndTestIfUnchanged(< / div >
< div class = "line" > < a name = "l00737" > < / a > < span class = "lineno" > 737< / span >   < span class = "keyword" > const< / span > LinearProgram& lp, < span class = "keywordtype" > bool< / span > * only_change_is_new_rows,< / div >
< div class = "line" > < a name = "l00738" > < / a > < span class = "lineno" > 738< / span >   < span class = "keywordtype" > bool< / span > * only_change_is_new_cols, ColIndex* num_new_cols) {< / div >
< div class = "line" > < a name = "l00739" > < / a > < span class = "lineno" > 739< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (only_change_is_new_rows != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (only_change_is_new_cols != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (num_new_cols != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > , lp.GetFirstSlackVariable());< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (num_cols_, compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a41741829541d089f1c4d34f190884813" > num_cols< / a > ());< / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (num_rows_, compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a960110e64357a3e69162ebf1f71959dd" > num_rows< / a > ());< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   < / div >
< div class = "line" > < a name = "l00747" > < / a > < span class = "lineno" > 747< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (lp.num_variables(),< / div >
< div class = "line" > < a name = "l00748" > < / a > < span class = "lineno" > 748< / span >   lp.GetFirstSlackVariable() + < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (lp.num_constraints()));< / div >
< div class = "line" > < a name = "l00749" > < / a > < span class = "lineno" > 749< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a15dfa7820af8e00b9624297be497f95a" > IsRightMostSquareMatrixIdentity< / a > (lp.GetSparseMatrix()));< / div >
< div class = "line" > < a name = "l00750" > < / a > < span class = "lineno" > 750< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > old_part_of_matrix_is_unchanged =< / div >
< div class = "line" > < a name = "l00751" > < / a > < span class = "lineno" > 751< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a9f2b788a9c67a4c71cb7e75b54aea27f" > AreFirstColumnsAndRowsExactlyEquals< / a > (< / div >
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   num_rows_, first_slack_col_, lp.GetSparseMatrix(), compact_matrix_);< / div >
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   < / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   < span class = "comment" > // Test if the matrix is unchanged, and if yes, just returns true. Note that< / span > < / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   < span class = "comment" > // this doesn' t check the columns corresponding to the slack variables,< / span > < / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   < span class = "comment" > // because they were checked by lp.IsInEquationForm() when Solve() was called.< / span > < / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   < span class = "keywordflow" > if< / span > (old_part_of_matrix_is_unchanged & & lp.num_constraints() == num_rows_ & & < / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   lp.num_variables() == num_cols_) {< / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   }< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   < / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   < span class = "comment" > // Check if the new matrix can be derived from the old one just by adding< / span > < / div >
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   < span class = "comment" > // new rows (i.e new constraints).< / span > < / div >
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   *only_change_is_new_rows = old_part_of_matrix_is_unchanged & & < / div >
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   lp.num_constraints() > num_rows_ & & < / div >
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   lp.GetFirstSlackVariable() == first_slack_col_;< / div >
< div class = "line" > < a name = "l00767" > < / a > < span class = "lineno" > 767< / span >   < / div >
< div class = "line" > < a name = "l00768" > < / a > < span class = "lineno" > 768< / span >   < span class = "comment" > // Check if the new matrix can be derived from the old one just by adding< / span > < / div >
< div class = "line" > < a name = "l00769" > < / a > < span class = "lineno" > 769< / span >   < span class = "comment" > // new columns (i.e new variables).< / span > < / div >
< div class = "line" > < a name = "l00770" > < / a > < span class = "lineno" > 770< / span >   *only_change_is_new_cols = old_part_of_matrix_is_unchanged & & < / div >
< div class = "line" > < a name = "l00771" > < / a > < span class = "lineno" > 771< / span >   lp.num_constraints() == num_rows_ & & < / div >
< div class = "line" > < a name = "l00772" > < / a > < span class = "lineno" > 772< / span >   lp.GetFirstSlackVariable() > first_slack_col_;< / div >
< div class = "line" > < a name = "l00773" > < / a > < span class = "lineno" > 773< / span >   *num_new_cols =< / div >
< div class = "line" > < a name = "l00774" > < / a > < span class = "lineno" > 774< / span >   *only_change_is_new_cols ? lp.num_variables() - num_cols_ : ColIndex(0);< / div >
< div class = "line" > < a name = "l00775" > < / a > < span class = "lineno" > 775< / span >   < / div >
< div class = "line" > < a name = "l00776" > < / a > < span class = "lineno" > 776< / span >   < span class = "comment" > // Initialize first_slack_.< / span > < / div >
< div class = "line" > < a name = "l00777" > < / a > < span class = "lineno" > 777< / span >   first_slack_col_ = lp.GetFirstSlackVariable();< / div >
< div class = "line" > < a name = "l00778" > < / a > < span class = "lineno" > 778< / span >   < / div >
< div class = "line" > < a name = "l00779" > < / a > < span class = "lineno" > 779< / span >   < span class = "comment" > // Initialize the new dimensions.< / span > < / div >
< div class = "line" > < a name = "l00780" > < / a > < span class = "lineno" > 780< / span >   num_rows_ = lp.num_constraints();< / div >
< div class = "line" > < a name = "l00781" > < / a > < span class = "lineno" > 781< / span >   num_cols_ = lp.num_variables();< / div >
< div class = "line" > < a name = "l00782" > < / a > < span class = "lineno" > 782< / span >   < / div >
< div class = "line" > < a name = "l00783" > < / a > < span class = "lineno" > 783< / span >   < span class = "comment" > // Populate compact_matrix_ and transposed_matrix_ if needed. Note that we< / span > < / div >
< div class = "line" > < a name = "l00784" > < / a > < span class = "lineno" > 784< / span >   < span class = "comment" > // already added all the slack variables at this point, so matrix_ will not< / span > < / div >
< div class = "line" > < a name = "l00785" > < / a > < span class = "lineno" > 785< / span >   < span class = "comment" > // change anymore.< / span > < / div >
< div class = "line" > < a name = "l00786" > < / a > < span class = "lineno" > 786< / span >   < span class = "comment" > // TODO(user): This can be sped up by removing the MatrixView.< / span > < / div >
< div class = "line" > < a name = "l00787" > < / a > < span class = "lineno" > 787< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#aed842e8403e5fc09b23ead11e415d32e" > PopulateFromMatrixView< / a > (MatrixView(lp.GetSparseMatrix()));< / div >
< div class = "line" > < a name = "l00788" > < / a > < span class = "lineno" > 788< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_transposed_matrix()) {< / div >
< div class = "line" > < a name = "l00789" > < / a > < span class = "lineno" > 789< / span >   transposed_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#ab66e13ab146acabbfaf99ce9f75bf1d2" > PopulateFromTranspose< / a > (compact_matrix_);< / div >
< div class = "line" > < a name = "l00790" > < / a > < span class = "lineno" > 790< / span >   }< / div >
< div class = "line" > < a name = "l00791" > < / a > < span class = "lineno" > 791< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00792" > < / a > < span class = "lineno" > 792< / span >   }< / div >
< div class = "line" > < a name = "l00793" > < / a > < span class = "lineno" > 793< / span >   < / div >
< div class = "line" > < a name = "l00794" > < / a > < span class = "lineno" > 794< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::OldBoundsAreUnchangedAndNewVariablesHaveOneBoundAtZero(< / div >
< div class = "line" > < a name = "l00795" > < / a > < span class = "lineno" > 795< / span >   < span class = "keyword" > const< / span > LinearProgram& lp, ColIndex num_new_cols) {< / div >
< div class = "line" > < a name = "l00796" > < / a > < span class = "lineno" > 796< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00797" > < / a > < span class = "lineno" > 797< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (lp.num_variables(), num_cols_);< / div >
< div class = "line" > < a name = "l00798" > < / a > < span class = "lineno" > 798< / span >   < a class = "code" href = "base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2" > DCHECK_LE< / a > (num_new_cols, first_slack_col_);< / div >
< div class = "line" > < a name = "l00799" > < / a > < span class = "lineno" > 799< / span >   < span class = "keyword" > const< / span > ColIndex first_new_col(first_slack_col_ - num_new_cols);< / div >
< div class = "line" > < a name = "l00800" > < / a > < span class = "lineno" > 800< / span >   < / div >
< div class = "line" > < a name = "l00801" > < / a > < span class = "lineno" > 801< / span >   < span class = "comment" > // Check the original variable bounds.< / span > < / div >
< div class = "line" > < a name = "l00802" > < / a > < span class = "lineno" > 802< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < first_new_col; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00803" > < / a > < span class = "lineno" > 803< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != lp.variable_lower_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ||< / div >
< div class = "line" > < a name = "l00804" > < / a > < span class = "lineno" > 804< / span >   upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != lp.variable_upper_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00805" > < / a > < span class = "lineno" > 805< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00806" > < / a > < span class = "lineno" > 806< / span >   }< / div >
< div class = "line" > < a name = "l00807" > < / a > < span class = "lineno" > 807< / span >   }< / div >
< div class = "line" > < a name = "l00808" > < / a > < span class = "lineno" > 808< / span >   < span class = "comment" > // Check that each new variable has a bound of zero.< / span > < / div >
< div class = "line" > < a name = "l00809" > < / a > < span class = "lineno" > 809< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (first_new_col); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < first_slack_col_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00810" > < / a > < span class = "lineno" > 810< / span >   < span class = "keywordflow" > if< / span > (lp.variable_lower_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != 0.0 & & < / div >
< div class = "line" > < a name = "l00811" > < / a > < span class = "lineno" > 811< / span >   lp.variable_upper_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != 0.0) {< / div >
< div class = "line" > < a name = "l00812" > < / a > < span class = "lineno" > 812< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00813" > < / a > < span class = "lineno" > 813< / span >   }< / div >
< div class = "line" > < a name = "l00814" > < / a > < span class = "lineno" > 814< / span >   }< / div >
< div class = "line" > < a name = "l00815" > < / a > < span class = "lineno" > 815< / span >   < span class = "comment" > // Check that the slack bounds are unchanged.< / span > < / div >
< div class = "line" > < a name = "l00816" > < / a > < span class = "lineno" > 816< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (first_slack_col_); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00817" > < / a > < span class = "lineno" > 817< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > - num_new_cols] != lp.variable_lower_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ||< / div >
< div class = "line" > < a name = "l00818" > < / a > < span class = "lineno" > 818< / span >   upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > - num_new_cols] != lp.variable_upper_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00819" > < / a > < span class = "lineno" > 819< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00820" > < / a > < span class = "lineno" > 820< / span >   }< / div >
< div class = "line" > < a name = "l00821" > < / a > < span class = "lineno" > 821< / span >   }< / div >
< div class = "line" > < a name = "l00822" > < / a > < span class = "lineno" > 822< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00823" > < / a > < span class = "lineno" > 823< / span >   }< / div >
< div class = "line" > < a name = "l00824" > < / a > < span class = "lineno" > 824< / span >   < / div >
< div class = "line" > < a name = "l00825" > < / a > < span class = "lineno" > 825< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::InitializeBoundsAndTestIfUnchanged(< / div >
< div class = "line" > < a name = "l00826" > < / a > < span class = "lineno" > 826< / span >   < span class = "keyword" > const< / span > LinearProgram& lp) {< / div >
< div class = "line" > < a name = "l00827" > < / a > < span class = "lineno" > 827< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00828" > < / a > < span class = "lineno" > 828< / span >   lower_bound_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_cols_, 0.0);< / div >
< div class = "line" > < a name = "l00829" > < / a > < span class = "lineno" > 829< / span >   upper_bound_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_cols_, 0.0);< / div >
< div class = "line" > < a name = "l00830" > < / a > < span class = "lineno" > 830< / span >   bound_perturbation_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_cols_);< / div >
< div class = "line" > < a name = "l00831" > < / a > < span class = "lineno" > 831< / span >   < / div >
< div class = "line" > < a name = "l00832" > < / a > < span class = "lineno" > 832< / span >   < span class = "comment" > // Variable bounds, for both non-slack and slack variables.< / span > < / div >
< div class = "line" > < a name = "l00833" > < / a > < span class = "lineno" > 833< / span >   < span class = "keywordtype" > bool< / span > bounds_are_unchanged = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00834" > < / a > < span class = "lineno" > 834< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (lp.num_variables(), num_cols_);< / div >
< div class = "line" > < a name = "l00835" > < / a > < span class = "lineno" > 835< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < lp.num_variables(); ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00836" > < / a > < span class = "lineno" > 836< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != lp.variable_lower_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ||< / div >
< div class = "line" > < a name = "l00837" > < / a > < span class = "lineno" > 837< / span >   upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != lp.variable_upper_bounds()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00838" > < / a > < span class = "lineno" > 838< / span >   bounds_are_unchanged = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00839" > < / a > < span class = "lineno" > 839< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00840" > < / a > < span class = "lineno" > 840< / span >   }< / div >
< div class = "line" > < a name = "l00841" > < / a > < span class = "lineno" > 841< / span >   }< / div >
< div class = "line" > < a name = "l00842" > < / a > < span class = "lineno" > 842< / span >   < span class = "keywordflow" > if< / span > (!bounds_are_unchanged) {< / div >
< div class = "line" > < a name = "l00843" > < / a > < span class = "lineno" > 843< / span >   lower_bound_ = lp.variable_lower_bounds();< / div >
< div class = "line" > < a name = "l00844" > < / a > < span class = "lineno" > 844< / span >   upper_bound_ = lp.variable_upper_bounds();< / div >
< div class = "line" > < a name = "l00845" > < / a > < span class = "lineno" > 845< / span >   }< / div >
< div class = "line" > < a name = "l00846" > < / a > < span class = "lineno" > 846< / span >   < span class = "keywordflow" > return< / span > bounds_are_unchanged;< / div >
< div class = "line" > < a name = "l00847" > < / a > < span class = "lineno" > 847< / span >   }< / div >
< div class = "line" > < a name = "l00848" > < / a > < span class = "lineno" > 848< / span >   < / div >
< div class = "line" > < a name = "l00849" > < / a > < span class = "lineno" > 849< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::InitializeObjectiveAndTestIfUnchanged(< / div >
< div class = "line" > < a name = "l00850" > < / a > < span class = "lineno" > 850< / span >   < span class = "keyword" > const< / span > LinearProgram& lp) {< / div >
< div class = "line" > < a name = "l00851" > < / a > < span class = "lineno" > 851< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l00852" > < / a > < span class = "lineno" > 852< / span >   < / div >
< div class = "line" > < a name = "l00853" > < / a > < span class = "lineno" > 853< / span >   < span class = "keywordtype" > bool< / span > objective_is_unchanged = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00854" > < / a > < span class = "lineno" > 854< / span >   objective_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_cols_, 0.0);< / div >
< div class = "line" > < a name = "l00855" > < / a > < span class = "lineno" > 855< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (num_cols_, lp.num_variables());< / div >
< div class = "line" > < a name = "l00856" > < / a > < span class = "lineno" > 856< / span >   < span class = "keywordflow" > if< / span > (lp.IsMaximizationProblem()) {< / div >
< div class = "line" > < a name = "l00857" > < / a > < span class = "lineno" > 857< / span >   < span class = "comment" > // Note that we use the minimization version of the objective internally.< / span > < / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00858" > < / a > < span class = "lineno" > 858< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < lp.num_variables(); ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00859" > < / a > < span class = "lineno" > 859< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff = -lp.objective_coefficients()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00860" > < / a > < span class = "lineno" > 860< / span >   < span class = "keywordflow" > if< / span > (objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != coeff) {< / div >
< div class = "line" > < a name = "l00861" > < / a > < span class = "lineno" > 861< / span >   objective_is_unchanged = < span class = "keyword" > false< / span > ;< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l00862" > < / a > < span class = "lineno" > 862< / span >   }< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00863" > < / a > < span class = "lineno" > 863< / span >   objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = coeff;< / div >
< div class = "line" > < a name = "l00864" > < / a > < span class = "lineno" > 864< / span >   }< / div >
< div class = "line" > < a name = "l00865" > < / a > < span class = "lineno" > 865< / span >   objective_offset_ = -lp.objective_offset();< / div >
< div class = "line" > < a name = "l00866" > < / a > < span class = "lineno" > 866< / span >   objective_scaling_factor_ = -lp.objective_scaling_factor();< / div >
< div class = "line" > < a name = "l00867" > < / a > < span class = "lineno" > 867< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00868" > < / a > < span class = "lineno" > 868< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < lp.num_variables(); ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00869" > < / a > < span class = "lineno" > 869< / span >   < span class = "keywordflow" > if< / span > (objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != lp.objective_coefficients()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l00870" > < / a > < span class = "lineno" > 870< / span >   objective_is_unchanged = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00871" > < / a > < span class = "lineno" > 871< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00872" > < / a > < span class = "lineno" > 872< / span >   }< / div >
< div class = "line" > < a name = "l00873" > < / a > < span class = "lineno" > 873< / span >   }< / div >
< div class = "line" > < a name = "l00874" > < / a > < span class = "lineno" > 874< / span >   < span class = "keywordflow" > if< / span > (!objective_is_unchanged) {< / div >
< div class = "line" > < a name = "l00875" > < / a > < span class = "lineno" > 875< / span >   objective_ = lp.objective_coefficients();< / div >
< div class = "line" > < a name = "l00876" > < / a > < span class = "lineno" > 876< / span >   }< / div >
< div class = "line" > < a name = "l00877" > < / a > < span class = "lineno" > 877< / span >   objective_offset_ = lp.objective_offset();< / div >
< div class = "line" > < a name = "l00878" > < / a > < span class = "lineno" > 878< / span >   objective_scaling_factor_ = lp.objective_scaling_factor();< / div >
< div class = "line" > < a name = "l00879" > < / a > < span class = "lineno" > 879< / span >   }< / div >
< div class = "line" > < a name = "l00880" > < / a > < span class = "lineno" > 880< / span >   < span class = "keywordflow" > return< / span > objective_is_unchanged;< / div >
< div class = "line" > < a name = "l00881" > < / a > < span class = "lineno" > 881< / span >   }< / div >
< div class = "line" > < a name = "l00882" > < / a > < span class = "lineno" > 882< / span >   < / div >
< div class = "line" > < a name = "l00883" > < / a > < span class = "lineno" > 883< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::InitializeObjectiveLimit(< span class = "keyword" > const< / span > LinearProgram& lp) {< / div >
< div class = "line" > < a name = "l00884" > < / a > < span class = "lineno" > 884< / span >   objective_limit_reached_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00885" > < / a > < span class = "lineno" > 885< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (std::isfinite(objective_offset_));< / div >
< div class = "line" > < a name = "l00886" > < / a > < span class = "lineno" > 886< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (std::isfinite(objective_scaling_factor_));< / div >
< div class = "line" > < a name = "l00887" > < / a > < span class = "lineno" > 887< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (0.0, objective_scaling_factor_);< / div >
< div class = "line" > < a name = "l00888" > < / a > < span class = "lineno" > 888< / span >   < / div >
< div class = "line" > < a name = "l00889" > < / a > < span class = "lineno" > 889< / span >   < span class = "comment" > // This sets dual_objective_limit_ and then primal_objective_limit_.< / span > < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00890" > < / a > < span class = "lineno" > 890< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > set_dual : {< span class = "keyword" > true< / span > , < span class = "keyword" > false< / span > }) {< / div >
< div class = "line" > < a name = "l00891" > < / a > < span class = "lineno" > 891< / span >   < span class = "comment" > // NOTE(user): If objective_scaling_factor_ is negative, the optimization< / span > < / div >
< div class = "line" > < a name = "l00892" > < / a > < span class = "lineno" > 892< / span >   < span class = "comment" > // direction was reversed (during preprocessing or inside revised simplex),< / span > < / div >
< div class = "line" > < a name = "l00893" > < / a > < span class = "lineno" > 893< / span >   < span class = "comment" > // i.e., the original problem is maximization. In such case the _meaning_ of< / span > < / div >
< div class = "line" > < a name = "l00894" > < / a > < span class = "lineno" > 894< / span >   < span class = "comment" > // the lower and upper limits is swapped. To this end we must change the< / span > < / div >
< div class = "line" > < a name = "l00895" > < / a > < span class = "lineno" > 895< / span >   < span class = "comment" > // signs of limits, which happens automatically when calculating shifted< / span > < / div >
< div class = "line" > < a name = "l00896" > < / a > < span class = "lineno" > 896< / span >   < span class = "comment" > // limits. We must also use upper (resp. lower) limit in place of lower< / span > < / div >
< div class = "line" > < a name = "l00897" > < / a > < span class = "lineno" > 897< / span >   < span class = "comment" > // (resp. upper) limit when calculating the final objective_limit_.< / span > < / div >
< div class = "line" > < a name = "l00898" > < / a > < span class = "lineno" > 898< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00899" > < / a > < span class = "lineno" > 899< / span >   < span class = "comment" > // Choose lower limit if using the dual simplex and scaling factor is< / span > < / div >
< div class = "line" > < a name = "l00900" > < / a > < span class = "lineno" > 900< / span >   < span class = "comment" > // negative or if using the primal simplex and scaling is nonnegative, upper< / span > < / div >
< div class = "line" > < a name = "l00901" > < / a > < span class = "lineno" > 901< / span >   < span class = "comment" > // limit otherwise.< / span > < / div >
< div class = "line" > < a name = "l00902" > < / a > < span class = "lineno" > 902< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > limit = (objective_scaling_factor_ > = 0.0) != set_dual< / div >
< div class = "line" > < a name = "l00903" > < / a > < span class = "lineno" > 903< / span >   ? parameters_.objective_lower_limit()< / div >
< div class = "line" > < a name = "l00904" > < / a > < span class = "lineno" > 904< / span >   : parameters_.objective_upper_limit();< / div >
< div class = "line" > < a name = "l00905" > < / a > < span class = "lineno" > 905< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > shifted_limit =< / div >
< div class = "line" > < a name = "l00906" > < / a > < span class = "lineno" > 906< / span >   limit / objective_scaling_factor_ - objective_offset_;< / div >
< div class = "line" > < a name = "l00907" > < / a > < span class = "lineno" > 907< / span >   < span class = "keywordflow" > if< / span > (set_dual) {< / div >
< div class = "line" > < a name = "l00908" > < / a > < span class = "lineno" > 908< / span >   dual_objective_limit_ = shifted_limit;< / div >
< div class = "line" > < a name = "l00909" > < / a > < span class = "lineno" > 909< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00910" > < / a > < span class = "lineno" > 910< / span >   primal_objective_limit_ = shifted_limit;< / div >
< div class = "line" > < a name = "l00911" > < / a > < span class = "lineno" > 911< / span >   }< / div >
< div class = "line" > < a name = "l00912" > < / a > < span class = "lineno" > 912< / span >   }< / div >
< div class = "line" > < a name = "l00913" > < / a > < span class = "lineno" > 913< / span >   }< / div >
< div class = "line" > < a name = "l00914" > < / a > < span class = "lineno" > 914< / span >   < / div >
< div class = "line" > < a name = "l00915" > < / a > < span class = "lineno" > 915< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::InitializeVariableStatusesForWarmStart(< / div >
< div class = "line" > < a name = "l00916" > < / a > < span class = "lineno" > 916< / span >   < span class = "keyword" > const< / span > BasisState& state, ColIndex num_new_cols) {< / div >
< div class = "line" > < a name = "l00917" > < / a > < span class = "lineno" > 917< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a84f09868c621660464ade82b504ba600" > InitializeAndComputeType< / a > ();< / div >
< div class = "line" > < a name = "l00918" > < / a > < span class = "lineno" > 918< / span >   RowIndex num_basic_variables(0);< / div >
< div class = "line" > < a name = "l00919" > < / a > < span class = "lineno" > 919< / span >   < a class = "code" href = "base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2" > DCHECK_LE< / a > (num_new_cols, first_slack_col_);< / div >
< div class = "line" > < a name = "l00920" > < / a > < span class = "lineno" > 920< / span >   < span class = "keyword" > const< / span > ColIndex first_new_col(first_slack_col_ - num_new_cols);< / div >
< div class = "line" > < a name = "l00921" > < / a > < span class = "lineno" > 921< / span >   < span class = "comment" > // Compute the status for all the columns (note that the slack variables are< / span > < / div >
< div class = "line" > < a name = "l00922" > < / a > < span class = "lineno" > 922< / span >   < span class = "comment" > // already added at the end of the matrix at this stage).< / span > < / div >
< div class = "line" > < a name = "l00923" > < / a > < span class = "lineno" > 923< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00924" > < / a > < span class = "lineno" > 924< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > default_status = ComputeDefaultVariableStatus(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00925" > < / a > < span class = "lineno" > 925< / span >   < / div >
< div class = "line" > < a name = "l00926" > < / a > < span class = "lineno" > 926< / span >   < span class = "comment" > // Start with the given " warm" status from the BasisState if it exists.< / span > < / div >
< div class = "line" > < a name = "l00927" > < / a > < span class = "lineno" > 927< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status = default_status;< / div >
< div class = "line" > < a name = "l00928" > < / a > < span class = "lineno" > 928< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < first_new_col & & < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < state.statuses.size()) {< / div >
< div class = "line" > < a name = "l00929" > < / a > < span class = "lineno" > 929< / span >   status = state.statuses[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00930" > < / a > < span class = "lineno" > 930< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > > = first_slack_col_ & & < / div >
< div class = "line" > < a name = "l00931" > < / a > < span class = "lineno" > 931< / span >   < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > - num_new_cols < state.statuses.size()) {< / div >
< div class = "line" > < a name = "l00932" > < / a > < span class = "lineno" > 932< / span >   status = state.statuses[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > - num_new_cols];< / div >
< div class = "line" > < a name = "l00933" > < / a > < span class = "lineno" > 933< / span >   }< / div >
< div class = "line" > < a name = "l00934" > < / a > < span class = "lineno" > 934< / span >   < / div >
< div class = "line" > < a name = "l00935" > < / a > < span class = "lineno" > 935< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l00936" > < / a > < span class = "lineno" > 936< / span >   < span class = "comment" > // Do not allow more than num_rows_ VariableStatus::BASIC variables.< / span > < / div >
< div class = "line" > < a name = "l00937" > < / a > < span class = "lineno" > 937< / span >   < span class = "keywordflow" > if< / span > (num_basic_variables == num_rows_) {< / div >
< div class = "line" > < a name = "l00938" > < / a > < span class = "lineno" > 938< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Too many basic variables in the warm-start basis." < / span > < / div >
< div class = "line" > < a name = "l00939" > < / a > < span class = "lineno" > 939< / span >   < < < span class = "stringliteral" > " Only keeping the first ones as VariableStatus::BASIC." < / span > ;< / div >
< div class = "line" > < a name = "l00940" > < / a > < span class = "lineno" > 940< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a84dcc462db65072ec3a28b87bb3cd3ad" > UpdateToNonBasicStatus< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , default_status);< / div >
< div class = "line" > < a name = "l00941" > < / a > < span class = "lineno" > 941< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00942" > < / a > < span class = "lineno" > 942< / span >   ++num_basic_variables;< / div >
< div class = "line" > < a name = "l00943" > < / a > < span class = "lineno" > 943< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab717dd0f604f9207435f9ab5336d1113" > UpdateToBasicStatus< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00944" > < / a > < span class = "lineno" > 944< / span >   }< / div >
< div class = "line" > < a name = "l00945" > < / a > < span class = "lineno" > 945< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00946" > < / a > < span class = "lineno" > 946< / span >   < span class = "comment" > // Remove incompatibilities between the warm status and the variable< / span > < / div >
< div class = "line" > < a name = "l00947" > < / a > < span class = "lineno" > 947< / span >   < span class = "comment" > // bounds. We use the default status as an indication of the bounds< / span > < / div >
< div class = "line" > < a name = "l00948" > < / a > < span class = "lineno" > 948< / span >   < span class = "comment" > // type.< / span > < / div >
< div class = "line" > < a name = "l00949" > < / a > < span class = "lineno" > 949< / span >   < span class = "keywordflow" > if< / span > ((status != default_status) & & < / div >
< div class = "line" > < a name = "l00950" > < / a > < span class = "lineno" > 950< / span >   ((default_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ) ||< / div >
< div class = "line" > < a name = "l00951" > < / a > < span class = "lineno" > 951< / span >   (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ) ||< / div >
< div class = "line" > < a name = "l00952" > < / a > < span class = "lineno" > 952< / span >   (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ) ||< / div >
< div class = "line" > < a name = "l00953" > < / a > < span class = "lineno" > 953< / span >   (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > & & < / div >
< div class = "line" > < a name = "l00954" > < / a > < span class = "lineno" > 954< / span >   lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) ||< / div >
< div class = "line" > < a name = "l00955" > < / a > < span class = "lineno" > 955< / span >   (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > & & < / div >
< div class = "line" > < a name = "l00956" > < / a > < span class = "lineno" > 956< / span >   upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ))) {< / div >
< div class = "line" > < a name = "l00957" > < / a > < span class = "lineno" > 957< / span >   status = default_status;< / div >
< div class = "line" > < a name = "l00958" > < / a > < span class = "lineno" > 958< / span >   }< / div >
< div class = "line" > < a name = "l00959" > < / a > < span class = "lineno" > 959< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a84dcc462db65072ec3a28b87bb3cd3ad" > UpdateToNonBasicStatus< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , status);< / div >
< div class = "line" > < a name = "l00960" > < / a > < span class = "lineno" > 960< / span >   }< / div >
< div class = "line" > < a name = "l00961" > < / a > < span class = "lineno" > 961< / span >   }< / div >
< div class = "line" > < a name = "l00962" > < / a > < span class = "lineno" > 962< / span >   < / div >
< div class = "line" > < a name = "l00963" > < / a > < span class = "lineno" > 963< / span >   < span class = "comment" > // Initialize the values.< / span > < / div >
< div class = "line" > < a name = "l00964" > < / a > < span class = "lineno" > 964< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#aef157eaaacfc6e27520ad528d5067e25" > ResetAllNonBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l00965" > < / a > < span class = "lineno" > 965< / span >   }< / div >
< div class = "line" > < a name = "l00966" > < / a > < span class = "lineno" > 966< / span >   < / div >
< div class = "line" > < a name = "l00967" > < / a > < span class = "lineno" > 967< / span >   < span class = "comment" > // This implementation starts with an initial matrix B equal to the identity< / span > < / div >
< div class = "line" > < a name = "l00968" > < / a > < span class = "lineno" > 968< / span >   < span class = "comment" > // matrix (modulo a column permutation). For that it uses either the slack< / span > < / div >
< div class = "line" > < a name = "l00969" > < / a > < span class = "lineno" > 969< / span >   < span class = "comment" > // variables or the singleton columns present in the problem. Afterwards, the< / span > < / div >
< div class = "line" > < a name = "l00970" > < / a > < span class = "lineno" > 970< / span >   < span class = "comment" > // fixed slacks in the basis are exchanged with normal columns of A if possible< / span > < / div >
< div class = "line" > < a name = "l00971" > < / a > < span class = "lineno" > 971< / span >   < span class = "comment" > // by the InitialBasis class.< / span > < / div >
< div class = "line" > < a name = "l00972" > < / a > < span class = "lineno" > 972< / span >   Status RevisedSimplex::CreateInitialBasis() {< / div >
< div class = "line" > < a name = "l00973" > < / a > < span class = "lineno" > 973< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l00974" > < / a > < span class = "lineno" > 974< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l00975" > < / a > < span class = "lineno" > 975< / span >   < span class = "comment" > // Initialize the variable values and statuses.< / span > < / div >
< div class = "line" > < a name = "l00976" > < / a > < span class = "lineno" > 976< / span >   < span class = "comment" > // Note that for the dual algorithm, boxed variables will be made< / span > < / div >
< div class = "line" > < a name = "l00977" > < / a > < span class = "lineno" > 977< / span >   < span class = "comment" > // dual-feasible later by MakeBoxedVariableDualFeasible(), so it doesn' t< / span > < / div >
< div class = "line" > < a name = "l00978" > < / a > < span class = "lineno" > 978< / span >   < span class = "comment" > // really matter at which of their two finite bounds they start.< / span > < / div >
< div class = "line" > < a name = "l00979" > < / a > < span class = "lineno" > 979< / span >   < span class = "keywordtype" > int< / span > num_free_variables = 0;< / div >
< div class = "line" > < a name = "l00980" > < / a > < span class = "lineno" > 980< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a84f09868c621660464ade82b504ba600" > InitializeAndComputeType< / a > ();< / div >
< div class = "line" > < a name = "l00981" > < / a > < span class = "lineno" > 981< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00982" > < / a > < span class = "lineno" > 982< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status = ComputeDefaultVariableStatus(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00983" > < / a > < span class = "lineno" > 983< / span >   SetNonBasicVariableStatusAndDeriveValue(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , status);< / div >
< div class = "line" > < a name = "l00984" > < / a > < span class = "lineno" > 984< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ) ++num_free_variables;< / div >
< div class = "line" > < a name = "l00985" > < / a > < span class = "lineno" > 985< / span >   }< / div >
< div class = "line" > < a name = "l00986" > < / a > < span class = "lineno" > 986< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of free variables in the problem: " < / span > < < num_free_variables;< / div >
< div class = "line" > < a name = "l00987" > < / a > < span class = "lineno" > 987< / span >   < / div >
< div class = "line" > < a name = "l00988" > < / a > < span class = "lineno" > 988< / span >   < span class = "comment" > // Start by using an all-slack basis.< / span > < / div >
< div class = "line" > < a name = "l00989" > < / a > < span class = "lineno" > 989< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad73165f71f932e8ccc240d4db5097803" > RowToColMapping< / a > basis(num_rows_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
< div class = "line" > < a name = "l00990" > < / a > < span class = "lineno" > 990< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00991" > < / a > < span class = "lineno" > 991< / span >   basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l00992" > < / a > < span class = "lineno" > 992< / span >   }< / div >
< div class = "line" > < a name = "l00993" > < / a > < span class = "lineno" > 993< / span >   < / div >
< div class = "line" > < a name = "l00994" > < / a > < span class = "lineno" > 994< / span >   < span class = "comment" > // If possible, for the primal simplex we replace some slack variables with< / span > < / div >
< div class = "line" > < a name = "l00995" > < / a > < span class = "lineno" > 995< / span >   < span class = "comment" > // some singleton columns present in the problem.< / span > < / div >
< div class = "line" > < a name = "l00996" > < / a > < span class = "lineno" > 996< / span >   < span class = "keywordflow" > if< / span > (!parameters_.use_dual_simplex() & & < / div >
< div class = "line" > < a name = "l00997" > < / a > < span class = "lineno" > 997< / span >   parameters_.initial_basis() != GlopParameters::MAROS & & < / div >
< div class = "line" > < a name = "l00998" > < / a > < span class = "lineno" > 998< / span >   parameters_.exploit_singleton_column_in_initial_basis()) {< / div >
< div class = "line" > < a name = "l00999" > < / a > < span class = "lineno" > 999< / span >   < span class = "comment" > // For UseSingletonColumnInInitialBasis() to work better, we change< / span > < / div >
< div class = "line" > < a name = "l01000" > < / a > < span class = "lineno" > 1000< / span >   < span class = "comment" > // the value of the boxed singleton column with a non-zero cost to the best< / span > < / div >
< div class = "line" > < a name = "l01001" > < / a > < span class = "lineno" > 1001< / span >   < span class = "comment" > // of their two bounds.< / span > < / div >
< div class = "line" > < a name = "l01002" > < / a > < span class = "lineno" > 1002< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01003" > < / a > < span class = "lineno" > 1003< / span >   < span class = "keywordflow" > if< / span > (compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () != 1) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01004" > < / a > < span class = "lineno" > 1004< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01005" > < / a > < span class = "lineno" > 1005< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > objective = objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01006" > < / a > < span class = "lineno" > 1006< / span >   < span class = "keywordflow" > if< / span > (objective > 0 & & < a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) & & < / div >
< div class = "line" > < a name = "l01007" > < / a > < span class = "lineno" > 1007< / span >   status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l01008" > < / a > < span class = "lineno" > 1008< / span >   SetNonBasicVariableStatusAndDeriveValue(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ,< / div >
< div class = "line" > < a name = "l01009" > < / a > < span class = "lineno" > 1009< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l01010" > < / a > < span class = "lineno" > 1010< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (objective < 0 & & < a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) & & < / div >
< div class = "line" > < a name = "l01011" > < / a > < span class = "lineno" > 1011< / span >   status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l01012" > < / a > < span class = "lineno" > 1012< / span >   SetNonBasicVariableStatusAndDeriveValue(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ,< / div >
< div class = "line" > < a name = "l01013" > < / a > < span class = "lineno" > 1013< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l01014" > < / a > < span class = "lineno" > 1014< / span >   }< / div >
< div class = "line" > < a name = "l01015" > < / a > < span class = "lineno" > 1015< / span >   }< / div >
< div class = "line" > < a name = "l01016" > < / a > < span class = "lineno" > 1016< / span >   < / div >
< div class = "line" > < a name = "l01017" > < / a > < span class = "lineno" > 1017< / span >   < span class = "comment" > // Compute the primal infeasibility of the initial variable values in< / span > < / div >
< div class = "line" > < a name = "l01018" > < / a > < span class = "lineno" > 1018< / span >   < span class = "comment" > // error_.< / span > < / div >
< div class = "line" > < a name = "l01019" > < / a > < span class = "lineno" > 1019< / span >   ComputeVariableValuesError();< / div >
< div class = "line" > < a name = "l01020" > < / a > < span class = "lineno" > 1020< / span >   < / div >
< div class = "line" > < a name = "l01021" > < / a > < span class = "lineno" > 1021< / span >   < span class = "comment" > // TODO(user): A better but slightly more complex algorithm would be to:< / span > < / div >
< div class = "line" > < a name = "l01022" > < / a > < span class = "lineno" > 1022< / span >   < span class = "comment" > // - Ignore all singleton columns except the slacks during phase I.< / span > < / div >
< div class = "line" > < a name = "l01023" > < / a > < span class = "lineno" > 1023< / span >   < span class = "comment" > // - For this, change the slack variable bounds accordingly.< / span > < / div >
< div class = "line" > < a name = "l01024" > < / a > < span class = "lineno" > 1024< / span >   < span class = "comment" > // - At the end of phase I, restore the slack variable bounds and perform< / span > < / div >
< div class = "line" > < a name = "l01025" > < / a > < span class = "lineno" > 1025< / span >   < span class = "comment" > // the same algorithm to start with feasible and " optimal" values of the< / span > < / div >
< div class = "line" > < a name = "l01026" > < / a > < span class = "lineno" > 1026< / span >   < span class = "comment" > // singleton columns.< / span > < / div >
< div class = "line" > < a name = "l01027" > < / a > < span class = "lineno" > 1027< / span >   basis.assign(num_rows_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
< div class = "line" > < a name = "l01028" > < / a > < span class = "lineno" > 1028< / span >   UseSingletonColumnInInitialBasis(& basis);< / div >
< div class = "line" > < a name = "l01029" > < / a > < span class = "lineno" > 1029< / span >   < / div >
< div class = "line" > < a name = "l01030" > < / a > < span class = "lineno" > 1030< / span >   < span class = "comment" > // Eventually complete the basis with fixed slack columns.< / span > < / div >
< div class = "line" > < a name = "l01031" > < / a > < span class = "lineno" > 1031< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01032" > < / a > < span class = "lineno" > 1032< / span >   < span class = "keywordflow" > if< / span > (basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l01033" > < / a > < span class = "lineno" > 1033< / span >   basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01034" > < / a > < span class = "lineno" > 1034< / span >   }< / div >
< div class = "line" > < a name = "l01035" > < / a > < span class = "lineno" > 1035< / span >   }< / div >
< div class = "line" > < a name = "l01036" > < / a > < span class = "lineno" > 1036< / span >   }< / div >
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< div class = "line" > < a name = "l01037" > < / a > < span class = "lineno" > 1037< / span >   < / div >
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< div class = "line" > < a name = "l01038" > < / a > < span class = "lineno" > 1038< / span >   < span class = "comment" > // Use an advanced initial basis to remove the fixed variables from the basis.< / span > < / div >
< div class = "line" > < a name = "l01039" > < / a > < span class = "lineno" > 1039< / span >   < span class = "keywordflow" > if< / span > (parameters_.initial_basis() == GlopParameters::NONE) {< / div >
< div class = "line" > < a name = "l01040" > < / a > < span class = "lineno" > 1040< / span >   < span class = "keywordflow" > return< / span > InitializeFirstBasis(basis);< / div >
< div class = "line" > < a name = "l01041" > < / a > < span class = "lineno" > 1041< / span >   }< / div >
< div class = "line" > < a name = "l01042" > < / a > < span class = "lineno" > 1042< / span >   < span class = "keywordflow" > if< / span > (parameters_.initial_basis() == GlopParameters::MAROS) {< / div >
< div class = "line" > < a name = "l01043" > < / a > < span class = "lineno" > 1043< / span >   InitialBasis initial_basis(compact_matrix_, objective_, lower_bound_,< / div >
< div class = "line" > < a name = "l01044" > < / a > < span class = "lineno" > 1044< / span >   upper_bound_, variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ());< / div >
< div class = "line" > < a name = "l01045" > < / a > < span class = "lineno" > 1045< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_dual_simplex()) {< / div >
< div class = "line" > < a name = "l01046" > < / a > < span class = "lineno" > 1046< / span >   < span class = "comment" > // This dual version only uses zero-cost columns to complete the< / span > < / div >
< div class = "line" > < a name = "l01047" > < / a > < span class = "lineno" > 1047< / span >   < span class = "comment" > // basis.< / span > < / div >
< div class = "line" > < a name = "l01048" > < / a > < span class = "lineno" > 1048< / span >   initial_basis.GetDualMarosBasis(num_cols_, & basis);< / div >
< div class = "line" > < a name = "l01049" > < / a > < span class = "lineno" > 1049< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01050" > < / a > < span class = "lineno" > 1050< / span >   initial_basis.GetPrimalMarosBasis(num_cols_, & basis);< / div >
< div class = "line" > < a name = "l01051" > < / a > < span class = "lineno" > 1051< / span >   }< / div >
< div class = "line" > < a name = "l01052" > < / a > < span class = "lineno" > 1052< / span >   < span class = "keywordtype" > int< / span > number_changed = 0;< / div >
< div class = "line" > < a name = "l01053" > < / a > < span class = "lineno" > 1053< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01054" > < / a > < span class = "lineno" > 1054< / span >   < span class = "keywordflow" > if< / span > (basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )) {< / div >
< div class = "line" > < a name = "l01055" > < / a > < span class = "lineno" > 1055< / span >   number_changed++;< / div >
< div class = "line" > < a name = "l01056" > < / a > < span class = "lineno" > 1056< / span >   }< / div >
< div class = "line" > < a name = "l01057" > < / a > < span class = "lineno" > 1057< / span >   }< / div >
< div class = "line" > < a name = "l01058" > < / a > < span class = "lineno" > 1058< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of Maros basis changes: " < / span > < < number_changed;< / div >
< div class = "line" > < a name = "l01059" > < / a > < span class = "lineno" > 1059< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (parameters_.initial_basis() == GlopParameters::BIXBY ||< / div >
< div class = "line" > < a name = "l01060" > < / a > < span class = "lineno" > 1060< / span >   parameters_.initial_basis() == GlopParameters::TRIANGULAR) {< / div >
< div class = "line" > < a name = "l01061" > < / a > < span class = "lineno" > 1061< / span >   < span class = "comment" > // First unassign the fixed variables from basis.< / span > < / div >
< div class = "line" > < a name = "l01062" > < / a > < span class = "lineno" > 1062< / span >   < span class = "keywordtype" > int< / span > num_fixed_variables = 0;< / div >
< div class = "line" > < a name = "l01063" > < / a > < span class = "lineno" > 1063< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < basis.size(); ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01064" > < / a > < span class = "lineno" > 1064< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01065" > < / a > < span class = "lineno" > 1065< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l01066" > < / a > < span class = "lineno" > 1066< / span >   basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ;< / div >
< div class = "line" > < a name = "l01067" > < / a > < span class = "lineno" > 1067< / span >   ++num_fixed_variables;< / div >
< div class = "line" > < a name = "l01068" > < / a > < span class = "lineno" > 1068< / span >   }< / div >
< div class = "line" > < a name = "l01069" > < / a > < span class = "lineno" > 1069< / span >   }< / div >
< div class = "line" > < a name = "l01070" > < / a > < span class = "lineno" > 1070< / span >   < / div >
< div class = "line" > < a name = "l01071" > < / a > < span class = "lineno" > 1071< / span >   < span class = "keywordflow" > if< / span > (num_fixed_variables == 0) {< / div >
< div class = "line" > < a name = "l01072" > < / a > < span class = "lineno" > 1072< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Crash is set to " < / span > < < parameters_.initial_basis()< / div >
< div class = "line" > < a name = "l01073" > < / a > < span class = "lineno" > 1073< / span >   < < < span class = "stringliteral" > " but there is no equality rows to remove from initial all " < / span > < / div >
< div class = "line" > < a name = "l01074" > < / a > < span class = "lineno" > 1074< / span >   < span class = "stringliteral" > " slack basis." < / span > ;< / div >
< div class = "line" > < a name = "l01075" > < / a > < span class = "lineno" > 1075< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01076" > < / a > < span class = "lineno" > 1076< / span >   < span class = "comment" > // Then complete the basis with an advanced initial basis algorithm.< / span > < / div >
< div class = "line" > < a name = "l01077" > < / a > < span class = "lineno" > 1077< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Trying to remove " < / span > < < num_fixed_variables< / div >
< div class = "line" > < a name = "l01078" > < / a > < span class = "lineno" > 1078< / span >   < < < span class = "stringliteral" > " fixed variables from the initial basis." < / span > ;< / div >
< div class = "line" > < a name = "l01079" > < / a > < span class = "lineno" > 1079< / span >   InitialBasis initial_basis(compact_matrix_, objective_, lower_bound_,< / div >
< div class = "line" > < a name = "l01080" > < / a > < span class = "lineno" > 1080< / span >   upper_bound_, variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ());< / div >
< div class = "line" > < a name = "l01081" > < / a > < span class = "lineno" > 1081< / span >   < / div >
< div class = "line" > < a name = "l01082" > < / a > < span class = "lineno" > 1082< / span >   < span class = "keywordflow" > if< / span > (parameters_.initial_basis() == GlopParameters::BIXBY) {< / div >
< div class = "line" > < a name = "l01083" > < / a > < span class = "lineno" > 1083< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_scaling()) {< / div >
< div class = "line" > < a name = "l01084" > < / a > < span class = "lineno" > 1084< / span >   initial_basis.CompleteBixbyBasis(first_slack_col_, & basis);< / div >
< div class = "line" > < a name = "l01085" > < / a > < span class = "lineno" > 1085< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01086" > < / a > < span class = "lineno" > 1086< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Bixby initial basis algorithm requires the problem " < / span > < / div >
< div class = "line" > < a name = "l01087" > < / a > < span class = "lineno" > 1087< / span >   < < < span class = "stringliteral" > " to be scaled. Skipping Bixby' s algorithm." < / span > ;< / div >
< div class = "line" > < a name = "l01088" > < / a > < span class = "lineno" > 1088< / span >   }< / div >
< div class = "line" > < a name = "l01089" > < / a > < span class = "lineno" > 1089< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (parameters_.initial_basis() == GlopParameters::TRIANGULAR) {< / div >
< div class = "line" > < a name = "l01090" > < / a > < span class = "lineno" > 1090< / span >   < span class = "comment" > // Note the use of num_cols_ here because this algorithm< / span > < / div >
< div class = "line" > < a name = "l01091" > < / a > < span class = "lineno" > 1091< / span >   < span class = "comment" > // benefits from treating fixed slack columns like any other column.< / span > < / div >
< div class = "line" > < a name = "l01092" > < / a > < span class = "lineno" > 1092< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_dual_simplex()) {< / div >
< div class = "line" > < a name = "l01093" > < / a > < span class = "lineno" > 1093< / span >   < span class = "comment" > // This dual version only uses zero-cost columns to complete the< / span > < / div >
< div class = "line" > < a name = "l01094" > < / a > < span class = "lineno" > 1094< / span >   < span class = "comment" > // basis.< / span > < / div >
< div class = "line" > < a name = "l01095" > < / a > < span class = "lineno" > 1095< / span >   initial_basis.CompleteTriangularDualBasis(num_cols_, & basis);< / div >
< div class = "line" > < a name = "l01096" > < / a > < span class = "lineno" > 1096< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01097" > < / a > < span class = "lineno" > 1097< / span >   initial_basis.CompleteTriangularPrimalBasis(num_cols_, & basis);< / div >
< div class = "line" > < a name = "l01098" > < / a > < span class = "lineno" > 1098< / span >   }< / div >
< div class = "line" > < a name = "l01099" > < / a > < span class = "lineno" > 1099< / span >   < / div >
< div class = "line" > < a name = "l01100" > < / a > < span class = "lineno" > 1100< / span >   < span class = "keyword" > const< / span > Status status = InitializeFirstBasis(basis);< / div >
< div class = "line" > < a name = "l01101" > < / a > < span class = "lineno" > 1101< / span >   < span class = "keywordflow" > if< / span > (status.ok()) {< / div >
< div class = "line" > < a name = "l01102" > < / a > < span class = "lineno" > 1102< / span >   < span class = "keywordflow" > return< / span > status;< / div >
< div class = "line" > < a name = "l01103" > < / a > < span class = "lineno" > 1103< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01104" > < / a > < span class = "lineno" > 1104< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Reverting to all slack basis." < / span > ;< / div >
< div class = "line" > < a name = "l01105" > < / a > < span class = "lineno" > 1105< / span >   < / div >
< div class = "line" > < a name = "l01106" > < / a > < span class = "lineno" > 1106< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01107" > < / a > < span class = "lineno" > 1107< / span >   basis[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01108" > < / a > < span class = "lineno" > 1108< / span >   }< / div >
< div class = "line" > < a name = "l01109" > < / a > < span class = "lineno" > 1109< / span >   }< / div >
< div class = "line" > < a name = "l01110" > < / a > < span class = "lineno" > 1110< / span >   }< / div >
< div class = "line" > < a name = "l01111" > < / a > < span class = "lineno" > 1111< / span >   }< / div >
< div class = "line" > < a name = "l01112" > < / a > < span class = "lineno" > 1112< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01113" > < / a > < span class = "lineno" > 1113< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > ) < < < span class = "stringliteral" > " Unsupported initial_basis parameters: " < / span > < / div >
< div class = "line" > < a name = "l01114" > < / a > < span class = "lineno" > 1114< / span >   < < parameters_.initial_basis();< / div >
< div class = "line" > < a name = "l01115" > < / a > < span class = "lineno" > 1115< / span >   }< / div >
< div class = "line" > < a name = "l01116" > < / a > < span class = "lineno" > 1116< / span >   < / div >
< div class = "line" > < a name = "l01117" > < / a > < span class = "lineno" > 1117< / span >   < span class = "keywordflow" > return< / span > InitializeFirstBasis(basis);< / div >
< div class = "line" > < a name = "l01118" > < / a > < span class = "lineno" > 1118< / span >   }< / div >
< div class = "line" > < a name = "l01119" > < / a > < span class = "lineno" > 1119< / span >   < / div >
< div class = "line" > < a name = "l01120" > < / a > < span class = "lineno" > 1120< / span >   Status RevisedSimplex::InitializeFirstBasis(< span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad73165f71f932e8ccc240d4db5097803" > RowToColMapping< / a > & basis) {< / div >
< div class = "line" > < a name = "l01121" > < / a > < span class = "lineno" > 1121< / span >   basis_ = basis;< / div >
< div class = "line" > < a name = "l01122" > < / a > < span class = "lineno" > 1122< / span >   < / div >
< div class = "line" > < a name = "l01123" > < / a > < span class = "lineno" > 1123< / span >   < span class = "comment" > // For each row which does not have a basic column, assign it to the< / span > < / div >
< div class = "line" > < a name = "l01124" > < / a > < span class = "lineno" > 1124< / span >   < span class = "comment" > // corresponding slack column.< / span > < / div >
< div class = "line" > < a name = "l01125" > < / a > < span class = "lineno" > 1125< / span >   basis_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_rows_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
< div class = "line" > < a name = "l01126" > < / a > < span class = "lineno" > 1126< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01127" > < / a > < span class = "lineno" > 1127< / span >   < span class = "keywordflow" > if< / span > (basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l01128" > < / a > < span class = "lineno" > 1128< / span >   basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = SlackColIndex(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01129" > < / a > < span class = "lineno" > 1129< / span >   }< / div >
< div class = "line" > < a name = "l01130" > < / a > < span class = "lineno" > 1130< / span >   }< / div >
< div class = "line" > < a name = "l01131" > < / a > < span class = "lineno" > 1131< / span >   < / div >
< div class = "line" > < a name = "l01132" > < / a > < span class = "lineno" > 1132< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a697f638cbd5a2dab2977b24e550bd7f9" > Initialize< / a > ());< / div >
< div class = "line" > < a name = "l01133" > < / a > < span class = "lineno" > 1133< / span >   PermuteBasis();< / div >
< div class = "line" > < a name = "l01134" > < / a > < span class = "lineno" > 1134< / span >   < / div >
< div class = "line" > < a name = "l01135" > < / a > < span class = "lineno" > 1135< / span >   < span class = "comment" > // Test that the upper bound on the condition number of basis is not too high.< / span > < / div >
< div class = "line" > < a name = "l01136" > < / a > < span class = "lineno" > 1136< / span >   < span class = "comment" > // The number was not computed by any rigorous analysis, we just prefer to< / span > < / div >
< div class = "line" > < a name = "l01137" > < / a > < span class = "lineno" > 1137< / span >   < span class = "comment" > // revert to the all slack basis if the condition number of our heuristic< / span > < / div >
< div class = "line" > < a name = "l01138" > < / a > < span class = "lineno" > 1138< / span >   < span class = "comment" > // first basis seems bad. See for instance on cond11.mps, where we get an< / span > < / div >
< div class = "line" > < a name = "l01139" > < / a > < span class = "lineno" > 1139< / span >   < span class = "comment" > // infinity upper bound.< / span > < / div >
< div class = "line" > < a name = "l01140" > < / a > < span class = "lineno" > 1140< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > condition_number_ub =< / div >
< div class = "line" > < a name = "l01141" > < / a > < span class = "lineno" > 1141< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a2ac7d8b80f20a8442138b0673aa0158c" > ComputeInfinityNormConditionNumberUpperBound< / a > ();< / div >
< div class = "line" > < a name = "l01142" > < / a > < span class = "lineno" > 1142< / span >   < span class = "keywordflow" > if< / span > (condition_number_ub > parameters_.initial_condition_number_threshold()) {< / div >
< div class = "line" > < a name = "l01143" > < / a > < span class = "lineno" > 1143< / span >   < span class = "keyword" > const< / span > std::string error_message =< / div >
< div class = "line" > < a name = "l01144" > < / a > < span class = "lineno" > 1144< / span >   absl::StrCat(< span class = "stringliteral" > " The matrix condition number upper bound is too high: " < / span > ,< / div >
< div class = "line" > < a name = "l01145" > < / a > < span class = "lineno" > 1145< / span >   condition_number_ub);< / div >
< div class = "line" > < a name = "l01146" > < / a > < span class = "lineno" > 1146< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < error_message;< / div >
< div class = "line" > < a name = "l01147" > < / a > < span class = "lineno" > 1147< / span >   < span class = "keywordflow" > return< / span > Status(< a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a59e56af19e754a6aa26a612ebf91d05fafa2ff9c081445bfbfbda10bc41b76a87" > Status::ERROR_LU< / a > , error_message);< / div >
< div class = "line" > < a name = "l01148" > < / a > < span class = "lineno" > 1148< / span >   }< / div >
< div class = "line" > < a name = "l01149" > < / a > < span class = "lineno" > 1149< / span >   < / div >
< div class = "line" > < a name = "l01150" > < / a > < span class = "lineno" > 1150< / span >   < span class = "comment" > // Everything is okay, finish the initialization.< / span > < / div >
< div class = "line" > < a name = "l01151" > < / a > < span class = "lineno" > 1151< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01152" > < / a > < span class = "lineno" > 1152< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ae636e3fb39ec1660660286628306cd15" > Update< / a > (basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ], < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > );< / div >
< div class = "line" > < a name = "l01153" > < / a > < span class = "lineno" > 1153< / span >   }< / div >
< div class = "line" > < a name = "l01154" > < / a > < span class = "lineno" > 1154< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (BasisIsConsistent());< / div >
< div class = "line" > < a name = "l01155" > < / a > < span class = "lineno" > 1155< / span >   < / div >
< div class = "line" > < a name = "l01156" > < / a > < span class = "lineno" > 1156< / span >   < span class = "comment" > // TODO(user): Maybe return an error status if this is too high. Note however< / span > < / div >
< div class = "line" > < a name = "l01157" > < / a > < span class = "lineno" > 1157< / span >   < span class = "comment" > // that if we want to do that, we need to reset variables_info_ to a< / span > < / div >
< div class = "line" > < a name = "l01158" > < / a > < span class = "lineno" > 1158< / span >   < span class = "comment" > // consistent state.< / span > < / div >
< div class = "line" > < a name = "l01159" > < / a > < span class = "lineno" > 1159< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l01160" > < / a > < span class = "lineno" > 1160< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1)) {< / div >
< div class = "line" > < a name = "l01161" > < / a > < span class = "lineno" > 1161< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01162" > < / a > < span class = "lineno" > 1162< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > () > tolerance) {< / div >
< div class = "line" > < a name = "l01163" > < / a > < span class = "lineno" > 1163< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < absl::StrCat(< / div >
< div class = "line" > < a name = "l01164" > < / a > < span class = "lineno" > 1164< / span >   < span class = "stringliteral" > " The primal residual of the initial basis is above the tolerance, " < / span > ,< / div >
< div class = "line" > < a name = "l01165" > < / a > < span class = "lineno" > 1165< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > (), < span class = "stringliteral" > " vs. " < / span > , tolerance);< / div >
< div class = "line" > < a name = "l01166" > < / a > < span class = "lineno" > 1166< / span >   }< / div >
< div class = "line" > < a name = "l01167" > < / a > < span class = "lineno" > 1167< / span >   }< / div >
< div class = "line" > < a name = "l01168" > < / a > < span class = "lineno" > 1168< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l01169" > < / a > < span class = "lineno" > 1169< / span >   }< / div >
< div class = "line" > < a name = "l01170" > < / a > < span class = "lineno" > 1170< / span >   < / div >
< div class = "line" > < a name = "l01171" > < / a > < span class = "lineno" > 1171< / span >   Status RevisedSimplex::Initialize(< span class = "keyword" > const< / span > LinearProgram& lp) {< / div >
< div class = "line" > < a name = "l01172" > < / a > < span class = "lineno" > 1172< / span >   parameters_ = initial_parameters_;< / div >
< div class = "line" > < a name = "l01173" > < / a > < span class = "lineno" > 1173< / span >   PropagateParameters();< / div >
< div class = "line" > < a name = "l01174" > < / a > < span class = "lineno" > 1174< / span >   < / div >
< div class = "line" > < a name = "l01175" > < / a > < span class = "lineno" > 1175< / span >   < span class = "comment" > // Calling InitializeMatrixAndTestIfUnchanged() first is important because< / span > < / div >
< div class = "line" > < a name = "l01176" > < / a > < span class = "lineno" > 1176< / span >   < span class = "comment" > // this is where num_rows_ and num_cols_ are computed.< / span > < / div >
< div class = "line" > < a name = "l01177" > < / a > < span class = "lineno" > 1177< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01178" > < / a > < span class = "lineno" > 1178< / span >   < span class = "comment" > // Note that these functions can' t depend on use_dual_simplex() since we may< / span > < / div >
< div class = "line" > < a name = "l01179" > < / a > < span class = "lineno" > 1179< / span >   < span class = "comment" > // change it below.< / span > < / div >
< div class = "line" > < a name = "l01180" > < / a > < span class = "lineno" > 1180< / span >   ColIndex num_new_cols(0);< / div >
< div class = "line" > < a name = "l01181" > < / a > < span class = "lineno" > 1181< / span >   < span class = "keywordtype" > bool< / span > only_change_is_new_rows = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01182" > < / a > < span class = "lineno" > 1182< / span >   < span class = "keywordtype" > bool< / span > only_change_is_new_cols = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01183" > < / a > < span class = "lineno" > 1183< / span >   < span class = "keywordtype" > bool< / span > matrix_is_unchanged = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01184" > < / a > < span class = "lineno" > 1184< / span >   < span class = "keywordtype" > bool< / span > only_new_bounds = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01185" > < / a > < span class = "lineno" > 1185< / span >   < span class = "keywordflow" > if< / span > (solution_state_.< a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > () || !notify_that_matrix_is_unchanged_) {< / div >
< div class = "line" > < a name = "l01186" > < / a > < span class = "lineno" > 1186< / span >   matrix_is_unchanged = InitializeMatrixAndTestIfUnchanged(< / div >
< div class = "line" > < a name = "l01187" > < / a > < span class = "lineno" > 1187< / span >   lp, & only_change_is_new_rows, & only_change_is_new_cols, & num_new_cols);< / div >
< div class = "line" > < a name = "l01188" > < / a > < span class = "lineno" > 1188< / span >   only_new_bounds = only_change_is_new_cols & & num_new_cols > 0 & & < / div >
< div class = "line" > < a name = "l01189" > < / a > < span class = "lineno" > 1189< / span >   OldBoundsAreUnchangedAndNewVariablesHaveOneBoundAtZero(< / div >
< div class = "line" > < a name = "l01190" > < / a > < span class = "lineno" > 1190< / span >   lp, num_new_cols);< / div >
< div class = "line" > < a name = "l01191" > < / a > < span class = "lineno" > 1191< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "macros_8h.html#a7f536a3b33f9bed8f75734e035d30725" > DEBUG_MODE< / a > ) {< / div >
< div class = "line" > < a name = "l01192" > < / a > < span class = "lineno" > 1192< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (InitializeMatrixAndTestIfUnchanged(< / div >
< div class = "line" > < a name = "l01193" > < / a > < span class = "lineno" > 1193< / span >   lp, & only_change_is_new_rows, & only_change_is_new_cols, & num_new_cols));< / div >
< div class = "line" > < a name = "l01194" > < / a > < span class = "lineno" > 1194< / span >   }< / div >
< div class = "line" > < a name = "l01195" > < / a > < span class = "lineno" > 1195< / span >   notify_that_matrix_is_unchanged_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01196" > < / a > < span class = "lineno" > 1196< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > objective_is_unchanged = InitializeObjectiveAndTestIfUnchanged(lp);< / div >
< div class = "line" > < a name = "l01197" > < / a > < span class = "lineno" > 1197< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > bounds_are_unchanged = InitializeBoundsAndTestIfUnchanged(lp);< / div >
< div class = "line" > < a name = "l01198" > < / a > < span class = "lineno" > 1198< / span >   < / div >
< div class = "line" > < a name = "l01199" > < / a > < span class = "lineno" > 1199< / span >   < span class = "comment" > // If parameters_.allow_simplex_algorithm_change() is true and we already have< / span > < / div >
< div class = "line" > < a name = "l01200" > < / a > < span class = "lineno" > 1200< / span >   < span class = "comment" > // a primal (resp. dual) feasible solution, then we use the primal (resp.< / span > < / div >
< div class = "line" > < a name = "l01201" > < / a > < span class = "lineno" > 1201< / span >   < span class = "comment" > // dual) algorithm since there is a good chance that it will be faster.< / span > < / div >
< div class = "line" > < a name = "l01202" > < / a > < span class = "lineno" > 1202< / span >   < span class = "keywordflow" > if< / span > (matrix_is_unchanged & & parameters_.allow_simplex_algorithm_change()) {< / div >
< div class = "line" > < a name = "l01203" > < / a > < span class = "lineno" > 1203< / span >   < span class = "keywordflow" > if< / span > (objective_is_unchanged & & !bounds_are_unchanged) {< / div >
< div class = "line" > < a name = "l01204" > < / a > < span class = "lineno" > 1204< / span >   parameters_.set_use_dual_simplex(< span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l01205" > < / a > < span class = "lineno" > 1205< / span >   PropagateParameters();< / div >
< div class = "line" > < a name = "l01206" > < / a > < span class = "lineno" > 1206< / span >   }< / div >
< div class = "line" > < a name = "l01207" > < / a > < span class = "lineno" > 1207< / span >   < span class = "keywordflow" > if< / span > (bounds_are_unchanged & & !objective_is_unchanged) {< / div >
< div class = "line" > < a name = "l01208" > < / a > < span class = "lineno" > 1208< / span >   parameters_.set_use_dual_simplex(< span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01209" > < / a > < span class = "lineno" > 1209< / span >   PropagateParameters();< / div >
< div class = "line" > < a name = "l01210" > < / a > < span class = "lineno" > 1210< / span >   }< / div >
< div class = "line" > < a name = "l01211" > < / a > < span class = "lineno" > 1211< / span >   }< / div >
< div class = "line" > < a name = "l01212" > < / a > < span class = "lineno" > 1212< / span >   < / div >
< div class = "line" > < a name = "l01213" > < / a > < span class = "lineno" > 1213< / span >   InitializeObjectiveLimit(lp);< / div >
< div class = "line" > < a name = "l01214" > < / a > < span class = "lineno" > 1214< / span >   < / div >
< div class = "line" > < a name = "l01215" > < / a > < span class = "lineno" > 1215< / span >   < span class = "comment" > // Computes the variable name as soon as possible for logging.< / span > < / div >
< div class = "line" > < a name = "l01216" > < / a > < span class = "lineno" > 1216< / span >   < span class = "comment" > // TODO(user): do we really need to store them? we could just compute them< / span > < / div >
< div class = "line" > < a name = "l01217" > < / a > < span class = "lineno" > 1217< / span >   < span class = "comment" > // on the fly since we do not need the speed.< / span > < / div >
< div class = "line" > < a name = "l01218" > < / a > < span class = "lineno" > 1218< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1)) {< / div >
< div class = "line" > < a name = "l01219" > < / a > < span class = "lineno" > 1219< / span >   SetVariableNames();< / div >
< div class = "line" > < a name = "l01220" > < / a > < span class = "lineno" > 1220< / span >   }< / div >
< div class = "line" > < a name = "l01221" > < / a > < span class = "lineno" > 1221< / span >   < / div >
< div class = "line" > < a name = "l01222" > < / a > < span class = "lineno" > 1222< / span >   < span class = "comment" > // Warm-start? This is supported only if the solution_state_ is non empty,< / span > < / div >
< div class = "line" > < a name = "l01223" > < / a > < span class = "lineno" > 1223< / span >   < span class = "comment" > // i.e., this revised simplex i) was already used to solve a problem, or< / span > < / div >
< div class = "line" > < a name = "l01224" > < / a > < span class = "lineno" > 1224< / span >   < span class = "comment" > // ii) the solution state was provided externally. Note that the< / span > < / div >
< div class = "line" > < a name = "l01225" > < / a > < span class = "lineno" > 1225< / span >   < span class = "comment" > // solution_state_ may have nothing to do with the current problem, e.g.,< / span > < / div >
< div class = "line" > < a name = "l01226" > < / a > < span class = "lineno" > 1226< / span >   < span class = "comment" > // objective, matrix, and/or bounds had changed. So we support several< / span > < / div >
< div class = "line" > < a name = "l01227" > < / a > < span class = "lineno" > 1227< / span >   < span class = "comment" > // scenarios of warm-start depending on how did the problem change and which< / span > < / div >
< div class = "line" > < a name = "l01228" > < / a > < span class = "lineno" > 1228< / span >   < span class = "comment" > // simplex algorithm is used (primal or dual).< / span > < / div >
< div class = "line" > < a name = "l01229" > < / a > < span class = "lineno" > 1229< / span >   < span class = "keywordtype" > bool< / span > solve_from_scratch = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01230" > < / a > < span class = "lineno" > 1230< / span >   < / div >
< div class = "line" > < a name = "l01231" > < / a > < span class = "lineno" > 1231< / span >   < span class = "comment" > // Try to perform a " quick" warm-start with no matrix factorization involved.< / span > < / div >
< div class = "line" > < a name = "l01232" > < / a > < span class = "lineno" > 1232< / span >   < span class = "keywordflow" > if< / span > (!solution_state_.< a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > () & & !solution_state_has_been_set_externally_) {< / div >
< div class = "line" > < a name = "l01233" > < / a > < span class = "lineno" > 1233< / span >   < span class = "keywordflow" > if< / span > (!parameters_.use_dual_simplex()) {< / div >
< div class = "line" > < a name = "l01234" > < / a > < span class = "lineno" > 1234< / span >   < span class = "comment" > // With primal simplex, always clear dual norms and dual pricing.< / span > < / div >
< div class = "line" > < a name = "l01235" > < / a > < span class = "lineno" > 1235< / span >   < span class = "comment" > // Incrementality is supported only if only change to the matrix and< / span > < / div >
< div class = "line" > < a name = "l01236" > < / a > < span class = "lineno" > 1236< / span >   < span class = "comment" > // bounds is adding new columns (objective may change), and that all< / span > < / div >
< div class = "line" > < a name = "l01237" > < / a > < span class = "lineno" > 1237< / span >   < span class = "comment" > // new columns have a bound equal to zero.< / span > < / div >
< div class = "line" > < a name = "l01238" > < / a > < span class = "lineno" > 1238< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01239" > < / a > < span class = "lineno" > 1239< / span >   dual_pricing_vector_.< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l01240" > < / a > < span class = "lineno" > 1240< / span >   < span class = "keywordflow" > if< / span > (matrix_is_unchanged & & bounds_are_unchanged) {< / div >
< div class = "line" > < a name = "l01241" > < / a > < span class = "lineno" > 1241< / span >   < span class = "comment" > // TODO(user): Do not do that if objective_is_unchanged. Currently< / span > < / div >
< div class = "line" > < a name = "l01242" > < / a > < span class = "lineno" > 1242< / span >   < span class = "comment" > // this seems to break something. Investigate.< / span > < / div >
< div class = "line" > < a name = "l01243" > < / a > < span class = "lineno" > 1243< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > ClearAndRemoveCostShifts< / a > ();< / div >
< div class = "line" > < a name = "l01244" > < / a > < span class = "lineno" > 1244< / span >   solve_from_scratch = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01245" > < / a > < span class = "lineno" > 1245< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (only_change_is_new_cols & & only_new_bounds) {< / div >
< div class = "line" > < a name = "l01246" > < / a > < span class = "lineno" > 1246< / span >   InitializeVariableStatusesForWarmStart(solution_state_, num_new_cols);< / div >
< div class = "line" > < a name = "l01247" > < / a > < span class = "lineno" > 1247< / span >   < span class = "keyword" > const< / span > ColIndex first_new_col(first_slack_col_ - num_new_cols);< / div >
< div class = "line" > < a name = "l01248" > < / a > < span class = "lineno" > 1248< / span >   < span class = "keywordflow" > for< / span > (ColIndex& col_ref : basis_) {< / div >
< div class = "line" > < a name = "l01249" > < / a > < span class = "lineno" > 1249< / span >   < span class = "keywordflow" > if< / span > (col_ref > = first_new_col) {< / div >
< div class = "line" > < a name = "l01250" > < / a > < span class = "lineno" > 1250< / span >   col_ref += num_new_cols;< / div >
< div class = "line" > < a name = "l01251" > < / a > < span class = "lineno" > 1251< / span >   }< / div >
< div class = "line" > < a name = "l01252" > < / a > < span class = "lineno" > 1252< / span >   }< / div >
< div class = "line" > < a name = "l01253" > < / a > < span class = "lineno" > 1253< / span >   < / div >
< div class = "line" > < a name = "l01254" > < / a > < span class = "lineno" > 1254< / span >   < span class = "comment" > // Make sure the primal edge norm are recomputed from scratch.< / span > < / div >
< div class = "line" > < a name = "l01255" > < / a > < span class = "lineno" > 1255< / span >   < span class = "comment" > // TODO(user): only the norms of the new columns actually need to be< / span > < / div >
< div class = "line" > < a name = "l01256" > < / a > < span class = "lineno" > 1256< / span >   < span class = "comment" > // computed.< / span > < / div >
< div class = "line" > < a name = "l01257" > < / a > < span class = "lineno" > 1257< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01258" > < / a > < span class = "lineno" > 1258< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > ClearAndRemoveCostShifts< / a > ();< / div >
< div class = "line" > < a name = "l01259" > < / a > < span class = "lineno" > 1259< / span >   solve_from_scratch = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01260" > < / a > < span class = "lineno" > 1260< / span >   }< / div >
< div class = "line" > < a name = "l01261" > < / a > < span class = "lineno" > 1261< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01262" > < / a > < span class = "lineno" > 1262< / span >   < span class = "comment" > // With dual simplex, always clear primal norms. Incrementality is< / span > < / div >
< div class = "line" > < a name = "l01263" > < / a > < span class = "lineno" > 1263< / span >   < span class = "comment" > // supported only if the objective remains the same (the matrix may< / span > < / div >
< div class = "line" > < a name = "l01264" > < / a > < span class = "lineno" > 1264< / span >   < span class = "comment" > // contain new rows and the bounds may change).< / span > < / div >
< div class = "line" > < a name = "l01265" > < / a > < span class = "lineno" > 1265< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01266" > < / a > < span class = "lineno" > 1266< / span >   < span class = "keywordflow" > if< / span > (objective_is_unchanged) {< / div >
< div class = "line" > < a name = "l01267" > < / a > < span class = "lineno" > 1267< / span >   < span class = "keywordflow" > if< / span > (matrix_is_unchanged) {< / div >
< div class = "line" > < a name = "l01268" > < / a > < span class = "lineno" > 1268< / span >   < span class = "keywordflow" > if< / span > (!bounds_are_unchanged) {< / div >
< div class = "line" > < a name = "l01269" > < / a > < span class = "lineno" > 1269< / span >   InitializeVariableStatusesForWarmStart(solution_state_,< / div >
< div class = "line" > < a name = "l01270" > < / a > < span class = "lineno" > 1270< / span >   ColIndex(0));< / div >
< div class = "line" > < a name = "l01271" > < / a > < span class = "lineno" > 1271< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l01272" > < / a > < span class = "lineno" > 1272< / span >   }< / div >
< div class = "line" > < a name = "l01273" > < / a > < span class = "lineno" > 1273< / span >   solve_from_scratch = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01274" > < / a > < span class = "lineno" > 1274< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (only_change_is_new_rows) {< / div >
< div class = "line" > < a name = "l01275" > < / a > < span class = "lineno" > 1275< / span >   < span class = "comment" > // For the dual-simplex, we also perform a warm start if a couple of< / span > < / div >
< div class = "line" > < a name = "l01276" > < / a > < span class = "lineno" > 1276< / span >   < span class = "comment" > // new rows where added.< / span > < / div >
< div class = "line" > < a name = "l01277" > < / a > < span class = "lineno" > 1277< / span >   InitializeVariableStatusesForWarmStart(solution_state_, ColIndex(0));< / div >
< div class = "line" > < a name = "l01278" > < / a > < span class = "lineno" > 1278< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#aa1eaa31ee29b8635d194762c1eb80962" > ResizeOnNewRows< / a > (num_rows_);< / div >
< div class = "line" > < a name = "l01279" > < / a > < span class = "lineno" > 1279< / span >   < / div >
< div class = "line" > < a name = "l01280" > < / a > < span class = "lineno" > 1280< / span >   < span class = "comment" > // TODO(user): The reduced costs do not really need to be recomputed.< / span > < / div >
< div class = "line" > < a name = "l01281" > < / a > < span class = "lineno" > 1281< / span >   < span class = "comment" > // We just need to initialize the ones of the new slack variables to< / span > < / div >
< div class = "line" > < a name = "l01282" > < / a > < span class = "lineno" > 1282< / span >   < span class = "comment" > // 0.< / span > < / div >
< div class = "line" > < a name = "l01283" > < / a > < span class = "lineno" > 1283< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > ClearAndRemoveCostShifts< / a > ();< / div >
< div class = "line" > < a name = "l01284" > < / a > < span class = "lineno" > 1284< / span >   dual_pricing_vector_.< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l01285" > < / a > < span class = "lineno" > 1285< / span >   < / div >
< div class = "line" > < a name = "l01286" > < / a > < span class = "lineno" > 1286< / span >   < span class = "comment" > // Note that this needs to be done after the Clear() calls above.< / span > < / div >
< div class = "line" > < a name = "l01287" > < / a > < span class = "lineno" > 1287< / span >   < span class = "keywordflow" > if< / span > (InitializeFirstBasis(basis_).ok()) {< / div >
< div class = "line" > < a name = "l01288" > < / a > < span class = "lineno" > 1288< / span >   solve_from_scratch = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01289" > < / a > < span class = "lineno" > 1289< / span >   }< / div >
< div class = "line" > < a name = "l01290" > < / a > < span class = "lineno" > 1290< / span >   }< / div >
< div class = "line" > < a name = "l01291" > < / a > < span class = "lineno" > 1291< / span >   }< / div >
< div class = "line" > < a name = "l01292" > < / a > < span class = "lineno" > 1292< / span >   }< / div >
< div class = "line" > < a name = "l01293" > < / a > < span class = "lineno" > 1293< / span >   }< / div >
< div class = "line" > < a name = "l01294" > < / a > < span class = "lineno" > 1294< / span >   < / div >
< div class = "line" > < a name = "l01295" > < / a > < span class = "lineno" > 1295< / span >   < span class = "comment" > // If we couldn' t perform a " quick" warm start above, we can at least try to< / span > < / div >
< div class = "line" > < a name = "l01296" > < / a > < span class = "lineno" > 1296< / span >   < span class = "comment" > // reuse the variable statuses.< / span > < / div >
< div class = "line" > < a name = "l01297" > < / a > < span class = "lineno" > 1297< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > log_info = parameters_.log_search_progress() || < a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1);< / div >
< div class = "line" > < a name = "l01298" > < / a > < span class = "lineno" > 1298< / span >   < span class = "keywordflow" > if< / span > (solve_from_scratch & & !solution_state_.< a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l01299" > < / a > < span class = "lineno" > 1299< / span >   < span class = "comment" > // If an external basis has been provided or if the matrix changed, we need< / span > < / div >
< div class = "line" > < a name = "l01300" > < / a > < span class = "lineno" > 1300< / span >   < span class = "comment" > // to perform more work, e.g., factorize the proposed basis and validate it.< / span > < / div >
< div class = "line" > < a name = "l01301" > < / a > < span class = "lineno" > 1301< / span >   InitializeVariableStatusesForWarmStart(solution_state_, ColIndex(0));< / div >
< div class = "line" > < a name = "l01302" > < / a > < span class = "lineno" > 1302< / span >   basis_.assign(num_rows_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
< div class = "line" > < a name = "l01303" > < / a > < span class = "lineno" > 1303< / span >   RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0);< / div >
< div class = "line" > < a name = "l01304" > < / a > < span class = "lineno" > 1304< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > GetIsBasicBitRow< / a > ()) {< / div >
< div class = "line" > < a name = "l01305" > < / a > < span class = "lineno" > 1305< / span >   basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l01306" > < / a > < span class = "lineno" > 1306< / span >   ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l01307" > < / a > < span class = "lineno" > 1307< / span >   }< / div >
< div class = "line" > < a name = "l01308" > < / a > < span class = "lineno" > 1308< / span >   < / div >
< div class = "line" > < a name = "l01309" > < / a > < span class = "lineno" > 1309< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01310" > < / a > < span class = "lineno" > 1310< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > ClearAndRemoveCostShifts< / a > ();< / div >
< div class = "line" > < a name = "l01311" > < / a > < span class = "lineno" > 1311< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01312" > < / a > < span class = "lineno" > 1312< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01313" > < / a > < span class = "lineno" > 1313< / span >   dual_pricing_vector_.< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l01314" > < / a > < span class = "lineno" > 1314< / span >   < / div >
< div class = "line" > < a name = "l01315" > < / a > < span class = "lineno" > 1315< / span >   < span class = "comment" > // TODO(user): If the basis is incomplete, we could complete it with< / span > < / div >
< div class = "line" > < a name = "l01316" > < / a > < span class = "lineno" > 1316< / span >   < span class = "comment" > // better slack variables than is done by InitializeFirstBasis() by< / span > < / div >
< div class = "line" > < a name = "l01317" > < / a > < span class = "lineno" > 1317< / span >   < span class = "comment" > // using a partial LU decomposition (see markowitz.h).< / span > < / div >
< div class = "line" > < a name = "l01318" > < / a > < span class = "lineno" > 1318< / span >   < span class = "keywordflow" > if< / span > (InitializeFirstBasis(basis_).ok()) {< / div >
< div class = "line" > < a name = "l01319" > < / a > < span class = "lineno" > 1319< / span >   solve_from_scratch = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01320" > < / a > < span class = "lineno" > 1320< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01321" > < / a > < span class = "lineno" > 1321< / span >   < span class = "keywordflow" > if< / span > (log_info) {< / div >
< div class = "line" > < a name = "l01322" > < / a > < span class = "lineno" > 1322< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " RevisedSimplex is not using the warm start " < / span > < / div >
< div class = "line" > < a name = "l01323" > < / a > < span class = "lineno" > 1323< / span >   < span class = "stringliteral" > " basis because it is not factorizable." < / span > ;< / div >
< div class = "line" > < a name = "l01324" > < / a > < span class = "lineno" > 1324< / span >   }< / div >
< div class = "line" > < a name = "l01325" > < / a > < span class = "lineno" > 1325< / span >   }< / div >
< div class = "line" > < a name = "l01326" > < / a > < span class = "lineno" > 1326< / span >   }< / div >
< div class = "line" > < a name = "l01327" > < / a > < span class = "lineno" > 1327< / span >   < / div >
< div class = "line" > < a name = "l01328" > < / a > < span class = "lineno" > 1328< / span >   < span class = "keywordflow" > if< / span > (solve_from_scratch) {< / div >
< div class = "line" > < a name = "l01329" > < / a > < span class = "lineno" > 1329< / span >   < span class = "keywordflow" > if< / span > (log_info) < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Solve from scratch." < / span > ;< / div >
< div class = "line" > < a name = "l01330" > < / a > < span class = "lineno" > 1330< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01331" > < / a > < span class = "lineno" > 1331< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > ClearAndRemoveCostShifts< / a > ();< / div >
< div class = "line" > < a name = "l01332" > < / a > < span class = "lineno" > 1332< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01333" > < / a > < span class = "lineno" > 1333< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l01334" > < / a > < span class = "lineno" > 1334< / span >   dual_pricing_vector_.< a class = "code" href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l01335" > < / a > < span class = "lineno" > 1335< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (CreateInitialBasis());< / div >
< div class = "line" > < a name = "l01336" > < / a > < span class = "lineno" > 1336< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01337" > < / a > < span class = "lineno" > 1337< / span >   < span class = "keywordflow" > if< / span > (log_info) < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Incremental solve." < / span > ;< / div >
< div class = "line" > < a name = "l01338" > < / a > < span class = "lineno" > 1338< / span >   }< / div >
< div class = "line" > < a name = "l01339" > < / a > < span class = "lineno" > 1339< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (BasisIsConsistent());< / div >
< div class = "line" > < a name = "l01340" > < / a > < span class = "lineno" > 1340< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l01341" > < / a > < span class = "lineno" > 1341< / span >   }< / div >
< div class = "line" > < a name = "l01342" > < / a > < span class = "lineno" > 1342< / span >   < / div >
< div class = "line" > < a name = "l01343" > < / a > < span class = "lineno" > 1343< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayBasicVariableStatistics() {< / div >
< div class = "line" > < a name = "l01344" > < / a > < span class = "lineno" > 1344< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01345" > < / a > < span class = "lineno" > 1345< / span >   < / div >
< div class = "line" > < a name = "l01346" > < / a > < span class = "lineno" > 1346< / span >   < span class = "keywordtype" > int< / span > num_fixed_variables = 0;< / div >
< div class = "line" > < a name = "l01347" > < / a > < span class = "lineno" > 1347< / span >   < span class = "keywordtype" > int< / span > num_free_variables = 0;< / div >
< div class = "line" > < a name = "l01348" > < / a > < span class = "lineno" > 1348< / span >   < span class = "keywordtype" > int< / span > num_variables_at_bound = 0;< / div >
< div class = "line" > < a name = "l01349" > < / a > < span class = "lineno" > 1349< / span >   < span class = "keywordtype" > int< / span > num_slack_variables = 0;< / div >
< div class = "line" > < a name = "l01350" > < / a > < span class = "lineno" > 1350< / span >   < span class = "keywordtype" > int< / span > num_infeasible_variables = 0;< / div >
< div class = "line" > < a name = "l01351" > < / a > < span class = "lineno" > 1351< / span >   < / div >
< div class = "line" > < a name = "l01352" > < / a > < span class = "lineno" > 1352< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & variable_values = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > GetDenseRow< / a > ();< / div >
< div class = "line" > < a name = "l01353" > < / a > < span class = "lineno" > 1353< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3fe3250e630f7fc5b37f2340ab79c566" > VariableTypeRow< / a > & variable_types = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ();< / div >
< div class = "line" > < a name = "l01354" > < / a > < span class = "lineno" > 1354< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01355" > < / a > < span class = "lineno" > 1355< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01356" > < / a > < span class = "lineno" > 1356< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01357" > < / a > < span class = "lineno" > 1357< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01358" > < / a > < span class = "lineno" > 1358< / span >   < span class = "keywordflow" > if< / span > (variable_types[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa2882f30bbca588e5d0e88be217ce75c1" > VariableType::UNCONSTRAINED< / a > ) {< / div >
< div class = "line" > < a name = "l01359" > < / a > < span class = "lineno" > 1359< / span >   ++num_free_variables;< / div >
< div class = "line" > < a name = "l01360" > < / a > < span class = "lineno" > 1360< / span >   }< / div >
< div class = "line" > < a name = "l01361" > < / a > < span class = "lineno" > 1361< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > > upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] + tolerance ||< / div >
< div class = "line" > < a name = "l01362" > < / a > < span class = "lineno" > 1362< / span >   < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > < lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - tolerance) {< / div >
< div class = "line" > < a name = "l01363" > < / a > < span class = "lineno" > 1363< / span >   ++num_infeasible_variables;< / div >
< div class = "line" > < a name = "l01364" > < / a > < span class = "lineno" > 1364< / span >   }< / div >
< div class = "line" > < a name = "l01365" > < / a > < span class = "lineno" > 1365< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > > = first_slack_col_) {< / div >
< div class = "line" > < a name = "l01366" > < / a > < span class = "lineno" > 1366< / span >   ++num_slack_variables;< / div >
< div class = "line" > < a name = "l01367" > < / a > < span class = "lineno" > 1367< / span >   }< / div >
< div class = "line" > < a name = "l01368" > < / a > < span class = "lineno" > 1368< / span >   < span class = "keywordflow" > if< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l01369" > < / a > < span class = "lineno" > 1369< / span >   ++num_fixed_variables;< / div >
< div class = "line" > < a name = "l01370" > < / a > < span class = "lineno" > 1370< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ||< / div >
< div class = "line" > < a name = "l01371" > < / a > < span class = "lineno" > 1371< / span >   variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l01372" > < / a > < span class = "lineno" > 1372< / span >   ++num_variables_at_bound;< / div >
< div class = "line" > < a name = "l01373" > < / a > < span class = "lineno" > 1373< / span >   }< / div >
< div class = "line" > < a name = "l01374" > < / a > < span class = "lineno" > 1374< / span >   }< / div >
< div class = "line" > < a name = "l01375" > < / a > < span class = "lineno" > 1375< / span >   < / div >
< div class = "line" > < a name = "l01376" > < / a > < span class = "lineno" > 1376< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Basis size: " < / span > < < num_rows_;< / div >
< div class = "line" > < a name = "l01377" > < / a > < span class = "lineno" > 1377< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of basic infeasible variables: " < / span > < / div >
< div class = "line" > < a name = "l01378" > < / a > < span class = "lineno" > 1378< / span >   < < num_infeasible_variables;< / div >
< div class = "line" > < a name = "l01379" > < / a > < span class = "lineno" > 1379< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of basic slack variables: " < / span > < < num_slack_variables;< / div >
< div class = "line" > < a name = "l01380" > < / a > < span class = "lineno" > 1380< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of basic variables at bound: " < / span > < < num_variables_at_bound;< / div >
< div class = "line" > < a name = "l01381" > < / a > < span class = "lineno" > 1381< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of basic fixed variables: " < / span > < < num_fixed_variables;< / div >
< div class = "line" > < a name = "l01382" > < / a > < span class = "lineno" > 1382< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Number of basic free variables: " < / span > < < num_free_variables;< / div >
< div class = "line" > < a name = "l01383" > < / a > < span class = "lineno" > 1383< / span >   }< / div >
< div class = "line" > < a name = "l01384" > < / a > < span class = "lineno" > 1384< / span >   < / div >
< div class = "line" > < a name = "l01385" > < / a > < span class = "lineno" > 1385< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::SaveState() {< / div >
< div class = "line" > < a name = "l01386" > < / a > < span class = "lineno" > 1386< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (num_cols_, variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ().< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ());< / div >
< div class = "line" > < a name = "l01387" > < / a > < span class = "lineno" > 1387< / span >   solution_state_.< a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f" > statuses< / a > = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ();< / div >
< div class = "line" > < a name = "l01388" > < / a > < span class = "lineno" > 1388< / span >   solution_state_has_been_set_externally_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01389" > < / a > < span class = "lineno" > 1389< / span >   }< / div >
< div class = "line" > < a name = "l01390" > < / a > < span class = "lineno" > 1390< / span >   < / div >
< div class = "line" > < a name = "l01391" > < / a > < span class = "lineno" > 1391< / span >   RowIndex RevisedSimplex::ComputeNumberOfEmptyRows() {< / div >
< div class = "line" > < a name = "l01392" > < / a > < span class = "lineno" > 1392< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#aec7177dd4fab33ada14a7689223fe89f" > DenseBooleanColumn< / a > contains_data(num_rows_, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01393" > < / a > < span class = "lineno" > 1393< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01394" > < / a > < span class = "lineno" > 1394< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
< div class = "line" > < a name = "l01395" > < / a > < span class = "lineno" > 1395< / span >   contains_data[e.row()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01396" > < / a > < span class = "lineno" > 1396< / span >   }< / div >
< div class = "line" > < a name = "l01397" > < / a > < span class = "lineno" > 1397< / span >   }< / div >
< div class = "line" > < a name = "l01398" > < / a > < span class = "lineno" > 1398< / span >   RowIndex num_empty_rows(0);< / div >
< div class = "line" > < a name = "l01399" > < / a > < span class = "lineno" > 1399< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01400" > < / a > < span class = "lineno" > 1400< / span >   < span class = "keywordflow" > if< / span > (!contains_data[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
< div class = "line" > < a name = "l01401" > < / a > < span class = "lineno" > 1401< / span >   ++num_empty_rows;< / div >
< div class = "line" > < a name = "l01402" > < / a > < span class = "lineno" > 1402< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Row " < / span > < < < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < < < span class = "stringliteral" > " is empty." < / span > ;< / div >
< div class = "line" > < a name = "l01403" > < / a > < span class = "lineno" > 1403< / span >   }< / div >
< div class = "line" > < a name = "l01404" > < / a > < span class = "lineno" > 1404< / span >   }< / div >
< div class = "line" > < a name = "l01405" > < / a > < span class = "lineno" > 1405< / span >   < span class = "keywordflow" > return< / span > num_empty_rows;< / div >
< div class = "line" > < a name = "l01406" > < / a > < span class = "lineno" > 1406< / span >   }< / div >
< div class = "line" > < a name = "l01407" > < / a > < span class = "lineno" > 1407< / span >   < / div >
< div class = "line" > < a name = "l01408" > < / a > < span class = "lineno" > 1408< / span >   ColIndex RevisedSimplex::ComputeNumberOfEmptyColumns() {< / div >
< div class = "line" > < a name = "l01409" > < / a > < span class = "lineno" > 1409< / span >   ColIndex num_empty_cols(0);< / div >
< div class = "line" > < a name = "l01410" > < / a > < span class = "lineno" > 1410< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01411" > < / a > < span class = "lineno" > 1411< / span >   < span class = "keywordflow" > if< / span > (compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l01412" > < / a > < span class = "lineno" > 1412< / span >   ++num_empty_cols;< / div >
< div class = "line" > < a name = "l01413" > < / a > < span class = "lineno" > 1413< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Column " < / span > < < < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < < < span class = "stringliteral" > " is empty." < / span > ;< / div >
< div class = "line" > < a name = "l01414" > < / a > < span class = "lineno" > 1414< / span >   }< / div >
< div class = "line" > < a name = "l01415" > < / a > < span class = "lineno" > 1415< / span >   }< / div >
< div class = "line" > < a name = "l01416" > < / a > < span class = "lineno" > 1416< / span >   < span class = "keywordflow" > return< / span > num_empty_cols;< / div >
< div class = "line" > < a name = "l01417" > < / a > < span class = "lineno" > 1417< / span >   }< / div >
< div class = "line" > < a name = "l01418" > < / a > < span class = "lineno" > 1418< / span >   < / div >
< div class = "line" > < a name = "l01419" > < / a > < span class = "lineno" > 1419< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::CorrectErrorsOnVariableValues() {< / div >
< div class = "line" > < a name = "l01420" > < / a > < span class = "lineno" > 1420< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01421" > < / a > < span class = "lineno" > 1421< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ());< / div >
< div class = "line" > < a name = "l01422" > < / a > < span class = "lineno" > 1422< / span >   < / div >
< div class = "line" > < a name = "l01423" > < / a > < span class = "lineno" > 1423< / span >   < span class = "comment" > // TODO(user): The primal residual error does not change if we take degenerate< / span > < / div >
< div class = "line" > < a name = "l01424" > < / a > < span class = "lineno" > 1424< / span >   < span class = "comment" > // steps or if we do not change the variable values. No need to recompute it< / span > < / div >
< div class = "line" > < a name = "l01425" > < / a > < span class = "lineno" > 1425< / span >   < span class = "comment" > // in this case.< / span > < / div >
< div class = "line" > < a name = "l01426" > < / a > < span class = "lineno" > 1426< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > primal_residual =< / div >
< div class = "line" > < a name = "l01427" > < / a > < span class = "lineno" > 1427< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > ();< / div >
< div class = "line" > < a name = "l01428" > < / a > < span class = "lineno" > 1428< / span >   < / div >
< div class = "line" > < a name = "l01429" > < / a > < span class = "lineno" > 1429< / span >   < span class = "comment" > // If the primal_residual is within the tolerance, no need to recompute< / span > < / div >
< div class = "line" > < a name = "l01430" > < / a > < span class = "lineno" > 1430< / span >   < span class = "comment" > // the basic variable values with a better precision.< / span > < / div >
< div class = "line" > < a name = "l01431" > < / a > < span class = "lineno" > 1431< / span >   < span class = "keywordflow" > if< / span > (primal_residual > = parameters_.harris_tolerance_ratio() *< / div >
< div class = "line" > < a name = "l01432" > < / a > < span class = "lineno" > 1432< / span >   parameters_.primal_feasibility_tolerance()) {< / div >
< div class = "line" > < a name = "l01433" > < / a > < span class = "lineno" > 1433< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l01434" > < / a > < span class = "lineno" > 1434< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Primal infeasibility (bounds error) = " < / span > < / div >
< div class = "line" > < a name = "l01435" > < / a > < span class = "lineno" > 1435< / span >   < < variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a198b526739f420eb0959c87c54e036b3" > ComputeMaximumPrimalInfeasibility< / a > ()< / div >
< div class = "line" > < a name = "l01436" > < / a > < span class = "lineno" > 1436< / span >   < < < span class = "stringliteral" > " , Primal residual |A.x - b| = " < / span > < / div >
< div class = "line" > < a name = "l01437" > < / a > < span class = "lineno" > 1437< / span >   < < variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > ();< / div >
< div class = "line" > < a name = "l01438" > < / a > < span class = "lineno" > 1438< / span >   }< / div >
< div class = "line" > < a name = "l01439" > < / a > < span class = "lineno" > 1439< / span >   < / div >
< div class = "line" > < a name = "l01440" > < / a > < span class = "lineno" > 1440< / span >   < span class = "comment" > // If we are doing too many degenerate iterations, we try to perturb the< / span > < / div >
< div class = "line" > < a name = "l01441" > < / a > < span class = "lineno" > 1441< / span >   < span class = "comment" > // problem by extending each basic variable bound with a random value. See how< / span > < / div >
< div class = "line" > < a name = "l01442" > < / a > < span class = "lineno" > 1442< / span >   < span class = "comment" > // bound_perturbation_ is used in ComputeHarrisRatioAndLeavingCandidates().< / span > < / div >
< div class = "line" > < a name = "l01443" > < / a > < span class = "lineno" > 1443< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01444" > < / a > < span class = "lineno" > 1444< / span >   < span class = "comment" > // Note that the perturbation is currently only reset to zero at the end of< / span > < / div >
< div class = "line" > < a name = "l01445" > < / a > < span class = "lineno" > 1445< / span >   < span class = "comment" > // the algorithm.< / span > < / div >
< div class = "line" > < a name = "l01446" > < / a > < span class = "lineno" > 1446< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01447" > < / a > < span class = "lineno" > 1447< / span >   < span class = "comment" > // TODO(user): This is currently disabled because the improvement is unclear.< / span > < / div >
< div class = "line" > < a name = "l01448" > < / a > < span class = "lineno" > 1448< / span >   < span class = "keywordflow" > if< / span > (< span class = "comment" > /* DISABLES CODE */< / span > < span class = "keyword" > false< / span > & & < / div >
< div class = "line" > < a name = "l01449" > < / a > < span class = "lineno" > 1449< / span >   (!feasibility_phase_ & & num_consecutive_degenerate_iterations_ > = 100)) {< / div >
< div class = "line" > < a name = "l01450" > < / a > < span class = "lineno" > 1450< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Perturbing the problem." < / span > ;< / div >
< div class = "line" > < a name = "l01451" > < / a > < span class = "lineno" > 1451< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = parameters_.harris_tolerance_ratio() *< / div >
< div class = "line" > < a name = "l01452" > < / a > < span class = "lineno" > 1452< / span >   parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01453" > < / a > < span class = "lineno" > 1453< / span >   std::uniform_real_distribution< double> dist(0, tolerance);< / div >
< div class = "line" > < a name = "l01454" > < / a > < span class = "lineno" > 1454< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01455" > < / a > < span class = "lineno" > 1455< / span >   bound_perturbation_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] += dist(random_);< / div >
< div class = "line" > < a name = "l01456" > < / a > < span class = "lineno" > 1456< / span >   }< / div >
< div class = "line" > < a name = "l01457" > < / a > < span class = "lineno" > 1457< / span >   }< / div >
< div class = "line" > < a name = "l01458" > < / a > < span class = "lineno" > 1458< / span >   }< / div >
< div class = "line" > < a name = "l01459" > < / a > < span class = "lineno" > 1459< / span >   < / div >
< div class = "line" > < a name = "l01460" > < / a > < span class = "lineno" > 1460< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::ComputeVariableValuesError() {< / div >
< div class = "line" > < a name = "l01461" > < / a > < span class = "lineno" > 1461< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01462" > < / a > < span class = "lineno" > 1462< / span >   error_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_rows_);< / div >
< div class = "line" > < a name = "l01463" > < / a > < span class = "lineno" > 1463< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & variable_values = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > GetDenseRow< / a > ();< / div >
< div class = "line" > < a name = "l01464" > < / a > < span class = "lineno" > 1464< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01465" > < / a > < span class = "lineno" > 1465< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01466" > < / a > < span class = "lineno" > 1466< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#aea0e9a84b41c95c874f171cae97cf31b" > ColumnAddMultipleToDenseColumn< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , -< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , & error_);< / div >
< div class = "line" > < a name = "l01467" > < / a > < span class = "lineno" > 1467< / span >   }< / div >
< div class = "line" > < a name = "l01468" > < / a > < span class = "lineno" > 1468< / span >   }< / div >
< div class = "line" > < a name = "l01469" > < / a > < span class = "lineno" > 1469< / span >   < / div >
< div class = "line" > < a name = "l01470" > < / a > < span class = "lineno" > 1470< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::ComputeDirection(ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01471" > < / a > < span class = "lineno" > 1471< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01472" > < / a > < span class = "lineno" > 1472< / span >   < a class = "code" href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > DCHECK_COL_BOUNDS< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01473" > < / a > < span class = "lineno" > 1473< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#ab9de0c21968ffad6320a44a010e33e07" > RightSolveForProblemColumn< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , & direction_);< / div >
< div class = "line" > < a name = "l01474" > < / a > < span class = "lineno" > 1474< / span >   direction_infinity_norm_ = 0.0;< / div >
< div class = "line" > < a name = "l01475" > < / a > < span class = "lineno" > 1475< / span >   < span class = "keywordflow" > if< / span > (direction_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ac146d47daa294f7e6546c7569c9c881b" > non_zeros< / a > .empty()) {< / div >
< div class = "line" > < a name = "l01476" > < / a > < span class = "lineno" > 1476< / span >   < span class = "comment" > // We still compute the direction non-zeros because our code relies on it.< / span > < / div >
< div class = "line" > < a name = "l01477" > < / a > < span class = "lineno" > 1477< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01478" > < / a > < span class = "lineno" > 1478< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = direction_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01479" > < / a > < span class = "lineno" > 1479< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > != 0.0) {< / div >
< div class = "line" > < a name = "l01480" > < / a > < span class = "lineno" > 1480< / span >   direction_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ac146d47daa294f7e6546c7569c9c881b" > non_zeros< / a > .push_back(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01481" > < / a > < span class = "lineno" > 1481< / span >   direction_infinity_norm_ =< / div >
< div class = "line" > < a name = "l01482" > < / a > < span class = "lineno" > 1482< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (direction_infinity_norm_, std::abs(< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ));< / div >
< div class = "line" > < a name = "l01483" > < / a > < span class = "lineno" > 1483< / span >   }< / div >
< div class = "line" > < a name = "l01484" > < / a > < span class = "lineno" > 1484< / span >   }< / div >
< div class = "line" > < a name = "l01485" > < / a > < span class = "lineno" > 1485< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01486" > < / a > < span class = "lineno" > 1486< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l01487" > < / a > < span class = "lineno" > 1487< / span >   direction_infinity_norm_ =< / div >
< div class = "line" > < a name = "l01488" > < / a > < span class = "lineno" > 1488< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (direction_infinity_norm_, std::abs(e.coefficient()));< / div >
< div class = "line" > < a name = "l01489" > < / a > < span class = "lineno" > 1489< / span >   }< / div >
< div class = "line" > < a name = "l01490" > < / a > < span class = "lineno" > 1490< / span >   }< / div >
< div class = "line" > < a name = "l01491" > < / a > < span class = "lineno" > 1491< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > (ratio_test_stats_.direction_density.Add(< / div >
< div class = "line" > < a name = "l01492" > < / a > < span class = "lineno" > 1492< / span >   num_rows_ == 0 ? 0.0< / div >
< div class = "line" > < a name = "l01493" > < / a > < span class = "lineno" > 1493< / span >   : < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (direction_.non_zeros.size()) /< / div >
< div class = "line" > < a name = "l01494" > < / a > < span class = "lineno" > 1494< / span >   < span class = "keyword" > static_cast< < / span > < span class = "keywordtype" > double< / span > < span class = "keyword" > > < / span > (num_rows_.value())));< / div >
< div class = "line" > < a name = "l01495" > < / a > < span class = "lineno" > 1495< / span >   }< / div >
< div class = "line" > < a name = "l01496" > < / a > < span class = "lineno" > 1496< / span >   < / div >
< div class = "line" > < a name = "l01497" > < / a > < span class = "lineno" > 1497< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > RevisedSimplex::ComputeDirectionError(ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01498" > < / a > < span class = "lineno" > 1498< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01499" > < / a > < span class = "lineno" > 1499< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a28058c5e9ff6638ea1ea210b49a4e7bc" > ColumnCopyToDenseColumn< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , & error_);< / div >
< div class = "line" > < a name = "l01500" > < / a > < span class = "lineno" > 1500< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l01501" > < / a > < span class = "lineno" > 1501< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#aea0e9a84b41c95c874f171cae97cf31b" > ColumnAddMultipleToDenseColumn< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , -e.coefficient(),< / div >
< div class = "line" > < a name = "l01502" > < / a > < span class = "lineno" > 1502< / span >   & error_);< / div >
< div class = "line" > < a name = "l01503" > < / a > < span class = "lineno" > 1503< / span >   }< / div >
< div class = "line" > < a name = "l01504" > < / a > < span class = "lineno" > 1504< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a2ad7ea612bc859f5b637d5029fb875fb" > InfinityNorm< / a > (error_);< / div >
< div class = "line" > < a name = "l01505" > < / a > < span class = "lineno" > 1505< / span >   }< / div >
< div class = "line" > < a name = "l01506" > < / a > < span class = "lineno" > 1506< / span >   < / div >
< div class = "line" > < a name = "l01507" > < / a > < span class = "lineno" > 1507< / span >   < span class = "keyword" > template< / span > < < span class = "keywordtype" > bool< / span > is_entering_reduced_cost_positive> < / div >
< div class = "line" > < a name = "l01508" > < / a > < span class = "lineno" > 1508< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > RevisedSimplex::GetRatio(RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01509" > < / a > < span class = "lineno" > 1509< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01510" > < / a > < span class = "lineno" > 1510< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > direction = direction_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01511" > < / a > < span class = "lineno" > 1511< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01512" > < / a > < span class = "lineno" > 1512< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > GetIsBasicBitRow< / a > ().< a class = "code" href = "classoperations__research_1_1_bitset64.html#aa454a4099ee887726b8f5b4a8ed1a81d" > IsSet< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ));< / div >
< div class = "line" > < a name = "l01513" > < / a > < span class = "lineno" > 1513< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (direction, 0.0);< / div >
< div class = "line" > < a name = "l01514" > < / a > < span class = "lineno" > 1514< / span >   < span class = "keywordflow" > if< / span > (is_entering_reduced_cost_positive) {< / div >
< div class = "line" > < a name = "l01515" > < / a > < span class = "lineno" > 1515< / span >   < span class = "keywordflow" > if< / span > (direction > 0.0) {< / div >
< div class = "line" > < a name = "l01516" > < / a > < span class = "lineno" > 1516< / span >   < span class = "keywordflow" > return< / span > (upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) / direction;< / div >
< div class = "line" > < a name = "l01517" > < / a > < span class = "lineno" > 1517< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01518" > < / a > < span class = "lineno" > 1518< / span >   < span class = "keywordflow" > return< / span > (lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) / direction;< / div >
< div class = "line" > < a name = "l01519" > < / a > < span class = "lineno" > 1519< / span >   }< / div >
< div class = "line" > < a name = "l01520" > < / a > < span class = "lineno" > 1520< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01521" > < / a > < span class = "lineno" > 1521< / span >   < span class = "keywordflow" > if< / span > (direction > 0.0) {< / div >
< div class = "line" > < a name = "l01522" > < / a > < span class = "lineno" > 1522< / span >   < span class = "keywordflow" > return< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > - lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) / direction;< / div >
< div class = "line" > < a name = "l01523" > < / a > < span class = "lineno" > 1523< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01524" > < / a > < span class = "lineno" > 1524< / span >   < span class = "keywordflow" > return< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > - upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) / direction;< / div >
< div class = "line" > < a name = "l01525" > < / a > < span class = "lineno" > 1525< / span >   }< / div >
< div class = "line" > < a name = "l01526" > < / a > < span class = "lineno" > 1526< / span >   }< / div >
< div class = "line" > < a name = "l01527" > < / a > < span class = "lineno" > 1527< / span >   }< / div >
< div class = "line" > < a name = "l01528" > < / a > < span class = "lineno" > 1528< / span >   < / div >
< div class = "line" > < a name = "l01529" > < / a > < span class = "lineno" > 1529< / span >   < span class = "keyword" > template< / span > < < span class = "keywordtype" > bool< / span > is_entering_reduced_cost_positive> < / div >
< div class = "line" > < a name = "l01530" > < / a > < span class = "lineno" > 1530< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > RevisedSimplex::ComputeHarrisRatioAndLeavingCandidates(< / div >
< div class = "line" > < a name = "l01531" > < / a > < span class = "lineno" > 1531< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > bound_flip_ratio, SparseColumn* leaving_candidates)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01532" > < / a > < span class = "lineno" > 1532< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01533" > < / a > < span class = "lineno" > 1533< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > harris_tolerance =< / div >
< div class = "line" > < a name = "l01534" > < / a > < span class = "lineno" > 1534< / span >   parameters_.harris_tolerance_ratio() *< / div >
< div class = "line" > < a name = "l01535" > < / a > < span class = "lineno" > 1535< / span >   parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01536" > < / a > < span class = "lineno" > 1536< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > minimum_delta = parameters_.degenerate_ministep_factor() *< / div >
< div class = "line" > < a name = "l01537" > < / a > < span class = "lineno" > 1537< / span >   parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01538" > < / a > < span class = "lineno" > 1538< / span >   < / div >
< div class = "line" > < a name = "l01539" > < / a > < span class = "lineno" > 1539< / span >   < span class = "comment" > // Initially, we can skip any variable with a ratio greater than< / span > < / div >
< div class = "line" > < a name = "l01540" > < / a > < span class = "lineno" > 1540< / span >   < span class = "comment" > // bound_flip_ratio since it seems to be always better to choose the< / span > < / div >
< div class = "line" > < a name = "l01541" > < / a > < span class = "lineno" > 1541< / span >   < span class = "comment" > // bound-flip over such leaving variable.< / span > < / div >
< div class = "line" > < a name = "l01542" > < / a > < span class = "lineno" > 1542< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > harris_ratio = bound_flip_ratio;< / div >
< div class = "line" > < a name = "l01543" > < / a > < span class = "lineno" > 1543< / span >   leaving_candidates-> Clear();< / div >
< div class = "line" > < a name = "l01544" > < / a > < span class = "lineno" > 1544< / span >   < / div >
< div class = "line" > < a name = "l01545" > < / a > < span class = "lineno" > 1545< / span >   < span class = "comment" > // If the basis is refactorized, then we should have everything with a good< / span > < / div >
< div class = "line" > < a name = "l01546" > < / a > < span class = "lineno" > 1546< / span >   < span class = "comment" > // precision, so we only consider " acceptable" pivots. Otherwise we consider< / span > < / div >
< div class = "line" > < a name = "l01547" > < / a > < span class = "lineno" > 1547< / span >   < span class = "comment" > // all the entries, and if the algorithm return a pivot that is too small, we< / span > < / div >
< div class = "line" > < a name = "l01548" > < / a > < span class = "lineno" > 1548< / span >   < span class = "comment" > // will refactorize and recompute the relevant quantities.< / span > < / div >
< div class = "line" > < a name = "l01549" > < / a > < span class = "lineno" > 1549< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > threshold = basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()< / div >
< div class = "line" > < a name = "l01550" > < / a > < span class = "lineno" > 1550< / span >   ? parameters_.minimum_acceptable_pivot()< / div >
< div class = "line" > < a name = "l01551" > < / a > < span class = "lineno" > 1551< / span >   : parameters_.ratio_test_zero_threshold();< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l01552" > < / a > < span class = "lineno" > 1552< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l01553" > < / a > < span class = "lineno" > 1553< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l01554" > < / a > < span class = "lineno" > 1554< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > magnitude = std::abs(e.coefficient());< / div >
< div class = "line" > < a name = "l01555" > < / a > < span class = "lineno" > 1555< / span >   < span class = "keywordflow" > if< / span > (magnitude < = threshold) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01556" > < / a > < span class = "lineno" > 1556< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > = GetRatio< is_entering_reduced_cost_positive> (e.row());< / div >
< div class = "line" > < a name = "l01557" > < / a > < span class = "lineno" > 1557< / span >   < span class = "comment" > // TODO(user): The perturbation is currently disabled, so no need to test< / span > < / div >
< div class = "line" > < a name = "l01558" > < / a > < span class = "lineno" > 1558< / span >   < span class = "comment" > // anything here.< / span > < / div >
< div class = "line" > < a name = "l01559" > < / a > < span class = "lineno" > 1559< / span >   < span class = "keywordflow" > if< / span > (< span class = "keyword" > false< / span > & & < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > < 0.0) {< / div >
< div class = "line" > < a name = "l01560" > < / a > < span class = "lineno" > 1560< / span >   < span class = "comment" > // If the variable is already pass its bound, we use the perturbed version< / span > < / div >
< div class = "line" > < a name = "l01561" > < / a > < span class = "lineno" > 1561< / span >   < span class = "comment" > // of the bound (if bound_perturbation_[basis_[row]] is not zero).< / span > < / div >
< div class = "line" > < a name = "l01562" > < / a > < span class = "lineno" > 1562< / span >   < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > += std::abs(bound_perturbation_[basis_[e.row()]] / e.coefficient());< / div >
< div class = "line" > < a name = "l01563" > < / a > < span class = "lineno" > 1563< / span >   }< / div >
< div class = "line" > < a name = "l01564" > < / a > < span class = "lineno" > 1564< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > < = harris_ratio) {< / div >
< div class = "line" > < a name = "l01565" > < / a > < span class = "lineno" > 1565< / span >   leaving_candidates-> SetCoefficient(e.row(), < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > );< / div >
< div class = "line" > < a name = "l01566" > < / a > < span class = "lineno" > 1566< / span >   < / div >
< div class = "line" > < a name = "l01567" > < / a > < span class = "lineno" > 1567< / span >   < span class = "comment" > // The second max() makes sure harris_ratio is lower bounded by a small< / span > < / div >
< div class = "line" > < a name = "l01568" > < / a > < span class = "lineno" > 1568< / span >   < span class = "comment" > // positive value. The more classical approach is to bound it by 0.0 but< / span > < / div >
< div class = "line" > < a name = "l01569" > < / a > < span class = "lineno" > 1569< / span >   < span class = "comment" > // since we will always perform a small positive step, we allow any< / span > < / div >
< div class = "line" > < a name = "l01570" > < / a > < span class = "lineno" > 1570< / span >   < span class = "comment" > // variable to go a bit more out of bound (even if it is past the harris< / span > < / div >
< div class = "line" > < a name = "l01571" > < / a > < span class = "lineno" > 1571< / span >   < span class = "comment" > // tolerance). This increase the number of candidates and allows us to< / span > < / div >
< div class = "line" > < a name = "l01572" > < / a > < span class = "lineno" > 1572< / span >   < span class = "comment" > // choose a more numerically stable pivot.< / span > < / div >
< div class = "line" > < a name = "l01573" > < / a > < span class = "lineno" > 1573< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01574" > < / a > < span class = "lineno" > 1574< / span >   < span class = "comment" > // Note that at least lower bounding it by 0.0 is really important on< / span > < / div >
< div class = "line" > < a name = "l01575" > < / a > < span class = "lineno" > 1575< / span >   < span class = "comment" > // numerically difficult problems because its helps in the choice of a< / span > < / div >
< div class = "line" > < a name = "l01576" > < / a > < span class = "lineno" > 1576< / span >   < span class = "comment" > // stable pivot.< / span > < / div >
< div class = "line" > < a name = "l01577" > < / a > < span class = "lineno" > 1577< / span >   harris_ratio = < a class = "code" href = "alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37" > std::min< / a > (harris_ratio,< / div >
< div class = "line" > < a name = "l01578" > < / a > < span class = "lineno" > 1578< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (minimum_delta / magnitude,< / div >
< div class = "line" > < a name = "l01579" > < / a > < span class = "lineno" > 1579< / span >   < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > + harris_tolerance / magnitude));< / div >
< div class = "line" > < a name = "l01580" > < / a > < span class = "lineno" > 1580< / span >   }< / div >
< div class = "line" > < a name = "l01581" > < / a > < span class = "lineno" > 1581< / span >   }< / div >
< div class = "line" > < a name = "l01582" > < / a > < span class = "lineno" > 1582< / span >   < span class = "keywordflow" > return< / span > harris_ratio;< / div >
< div class = "line" > < a name = "l01583" > < / a > < span class = "lineno" > 1583< / span >   }< / div >
< div class = "line" > < a name = "l01584" > < / a > < span class = "lineno" > 1584< / span >   < / div >
< div class = "line" > < a name = "l01585" > < / a > < span class = "lineno" > 1585< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l01586" > < / a > < span class = "lineno" > 1586< / span >   < / div >
< div class = "line" > < a name = "l01587" > < / a > < span class = "lineno" > 1587< / span >   < span class = "comment" > // Returns true if the candidate ratio is supposed to be more stable than the< / span > < / div >
< div class = "line" > < a name = "l01588" > < / a > < span class = "lineno" > 1588< / span >   < span class = "comment" > // current ratio (or if the two are equal).< / span > < / div >
< div class = "line" > < a name = "l01589" > < / a > < span class = "lineno" > 1589< / span >   < span class = "comment" > // The idea here is to take, by order of preference:< / span > < / div >
< div class = "line" > < a name = "l01590" > < / a > < span class = "lineno" > 1590< / span >   < span class = "comment" > // - the minimum positive ratio in order to intoduce a primal infeasibility< / span > < / div >
< div class = "line" > < a name = "l01591" > < / a > < span class = "lineno" > 1591< / span >   < span class = "comment" > // which is as small as possible.< / span > < / div >
< div class = "line" > < a name = "l01592" > < / a > < span class = "lineno" > 1592< / span >   < span class = "comment" > // - or the least negative one in order to have the smallest bound shift< / span > < / div >
< div class = "line" > < a name = "l01593" > < / a > < span class = "lineno" > 1593< / span >   < span class = "comment" > // possible on the leaving variable.< / span > < / div >
< div class = "line" > < a name = "l01594" > < / a > < span class = "lineno" > 1594< / span >   < span class = "keywordtype" > bool< / span > IsRatioMoreOrEquallyStable(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > current) {< / div >
< div class = "line" > < a name = "l01595" > < / a > < span class = "lineno" > 1595< / span >   < span class = "keywordflow" > if< / span > (current > = 0.0) {< / div >
< div class = "line" > < a name = "l01596" > < / a > < span class = "lineno" > 1596< / span >   < span class = "keywordflow" > return< / span > candidate > = 0.0 & & candidate < = current;< / div >
< div class = "line" > < a name = "l01597" > < / a > < span class = "lineno" > 1597< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01598" > < / a > < span class = "lineno" > 1598< / span >   < span class = "keywordflow" > return< / span > candidate > = current;< / div >
< div class = "line" > < a name = "l01599" > < / a > < span class = "lineno" > 1599< / span >   }< / div >
< div class = "line" > < a name = "l01600" > < / a > < span class = "lineno" > 1600< / span >   }< / div >
< div class = "line" > < a name = "l01601" > < / a > < span class = "lineno" > 1601< / span >   < / div >
< div class = "line" > < a name = "l01602" > < / a > < span class = "lineno" > 1602< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l01603" > < / a > < span class = "lineno" > 1603< / span >   < / div >
< div class = "line" > < a name = "l01604" > < / a > < span class = "lineno" > 1604< / span >   < span class = "comment" > // Ratio-test or Quotient-test. Choose the row of the leaving variable.< / span > < / div >
< div class = "line" > < a name = "l01605" > < / a > < span class = "lineno" > 1605< / span >   < span class = "comment" > // Known as CHUZR or CHUZRO in FORTRAN codes.< / span > < / div >
< div class = "line" > < a name = "l01606" > < / a > < span class = "lineno" > 1606< / span >   Status RevisedSimplex::ChooseLeavingVariableRow(< / div >
< div class = "line" > < a name = "l01607" > < / a > < span class = "lineno" > 1607< / span >   ColIndex entering_col, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost, < span class = "keywordtype" > bool< / span > * refactorize,< / div >
< div class = "line" > < a name = "l01608" > < / a > < span class = "lineno" > 1608< / span >   RowIndex* leaving_row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * step_length, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l01609" > < / a > < span class = "lineno" > 1609< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01610" > < / a > < span class = "lineno" > 1610< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (refactorize);< / div >
< div class = "line" > < a name = "l01611" > < / a > < span class = "lineno" > 1611< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l01612" > < / a > < span class = "lineno" > 1612< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (step_length);< / div >
< div class = "line" > < a name = "l01613" > < / a > < span class = "lineno" > 1613< / span >   < a class = "code" href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > DCHECK_COL_BOUNDS< / a > (entering_col);< / div >
< div class = "line" > < a name = "l01614" > < / a > < span class = "lineno" > 1614< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (0.0, reduced_cost);< / div >
< div class = "line" > < a name = "l01615" > < / a > < span class = "lineno" > 1615< / span >   < / div >
< div class = "line" > < a name = "l01616" > < / a > < span class = "lineno" > 1616< / span >   < span class = "comment" > // A few cases will cause the test to be recomputed from the beginning.< / span > < / div >
< div class = "line" > < a name = "l01617" > < / a > < span class = "lineno" > 1617< / span >   < span class = "keywordtype" > int< / span > stats_num_leaving_choices = 0;< / div >
< div class = "line" > < a name = "l01618" > < / a > < span class = "lineno" > 1618< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l01619" > < / a > < span class = "lineno" > 1619< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l01620" > < / a > < span class = "lineno" > 1620< / span >   stats_num_leaving_choices = 0;< / div >
< div class = "line" > < a name = "l01621" > < / a > < span class = "lineno" > 1621< / span >   < / div >
< div class = "line" > < a name = "l01622" > < / a > < span class = "lineno" > 1622< / span >   < span class = "comment" > // We initialize current_ratio with the maximum step the entering variable< / span > < / div >
< div class = "line" > < a name = "l01623" > < / a > < span class = "lineno" > 1623< / span >   < span class = "comment" > // can take (bound-flip). Note that we do not use tolerance here.< / span > < / div >
< div class = "line" > < a name = "l01624" > < / a > < span class = "lineno" > 1624< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entering_value = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (entering_col);< / div >
< div class = "line" > < a name = "l01625" > < / a > < span class = "lineno" > 1625< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > current_ratio =< / div >
< div class = "line" > < a name = "l01626" > < / a > < span class = "lineno" > 1626< / span >   (reduced_cost > 0.0) ? entering_value - lower_bound_[entering_col]< / div >
< div class = "line" > < a name = "l01627" > < / a > < span class = "lineno" > 1627< / span >   : upper_bound_[entering_col] - entering_value;< / div >
< div class = "line" > < a name = "l01628" > < / a > < span class = "lineno" > 1628< / span >   < a class = "code" href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > (current_ratio, 0.0);< / div >
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< div class = "line" > < a name = "l01629" > < / a > < span class = "lineno" > 1629< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l01630" > < / a > < span class = "lineno" > 1630< / span >   < span class = "comment" > // First pass of the Harris ratio test. If ' harris_tolerance' is zero, this< / span > < / div >
< div class = "line" > < a name = "l01631" > < / a > < span class = "lineno" > 1631< / span >   < span class = "comment" > // actually computes the minimum leaving ratio of all the variables. This is< / span > < / div >
< div class = "line" > < a name = "l01632" > < / a > < span class = "lineno" > 1632< / span >   < span class = "comment" > // the same as the ' classic' ratio test.< / span > < / div >
< div class = "line" > < a name = "l01633" > < / a > < span class = "lineno" > 1633< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > harris_ratio =< / div >
< div class = "line" > < a name = "l01634" > < / a > < span class = "lineno" > 1634< / span >   (reduced_cost > 0.0) ? ComputeHarrisRatioAndLeavingCandidates< true> (< / div >
< div class = "line" > < a name = "l01635" > < / a > < span class = "lineno" > 1635< / span >   current_ratio, & leaving_candidates_)< / div >
< div class = "line" > < a name = "l01636" > < / a > < span class = "lineno" > 1636< / span >   : ComputeHarrisRatioAndLeavingCandidates< false> (< / div >
< div class = "line" > < a name = "l01637" > < / a > < span class = "lineno" > 1637< / span >   current_ratio, & leaving_candidates_);< / div >
< div class = "line" > < a name = "l01638" > < / a > < span class = "lineno" > 1638< / span >   < / div >
< div class = "line" > < a name = "l01639" > < / a > < span class = "lineno" > 1639< / span >   < span class = "comment" > // If the bound-flip is a viable solution (i.e. it doesn' t move the basic< / span > < / div >
< div class = "line" > < a name = "l01640" > < / a > < span class = "lineno" > 1640< / span >   < span class = "comment" > // variable too much out of bounds), we take it as it is always stable and< / span > < / div >
< div class = "line" > < a name = "l01641" > < / a > < span class = "lineno" > 1641< / span >   < span class = "comment" > // fast.< / span > < / div >
< div class = "line" > < a name = "l01642" > < / a > < span class = "lineno" > 1642< / span >   < span class = "keywordflow" > if< / span > (current_ratio < = harris_ratio) {< / div >
< div class = "line" > < a name = "l01643" > < / a > < span class = "lineno" > 1643< / span >   *leaving_row = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l01644" > < / a > < span class = "lineno" > 1644< / span >   *step_length = current_ratio;< / div >
< div class = "line" > < a name = "l01645" > < / a > < span class = "lineno" > 1645< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01646" > < / a > < span class = "lineno" > 1646< / span >   }< / div >
< div class = "line" > < a name = "l01647" > < / a > < span class = "lineno" > 1647< / span >   < / div >
< div class = "line" > < a name = "l01648" > < / a > < span class = "lineno" > 1648< / span >   < span class = "comment" > // Second pass of the Harris ratio test. Amongst the variables with ' ratio< / span > < / div >
< div class = "line" > < a name = "l01649" > < / a > < span class = "lineno" > 1649< / span >   < span class = "comment" > // < = harris_ratio' , we choose the leaving row with the largest coefficient.< / span > < / div >
< div class = "line" > < a name = "l01650" > < / a > < span class = "lineno" > 1650< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01651" > < / a > < span class = "lineno" > 1651< / span >   < span class = "comment" > // This has a big impact, because picking a leaving variable with a small< / span > < / div >
< div class = "line" > < a name = "l01652" > < / a > < span class = "lineno" > 1652< / span >   < span class = "comment" > // direction_[row] is the main source of Abnormal LU errors.< / span > < / div >
< div class = "line" > < a name = "l01653" > < / a > < span class = "lineno" > 1653< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > pivot_magnitude = 0.0;< / div >
< div class = "line" > < a name = "l01654" > < / a > < span class = "lineno" > 1654< / span >   stats_num_leaving_choices = 0;< / div >
< div class = "line" > < a name = "l01655" > < / a > < span class = "lineno" > 1655< / span >   *leaving_row = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l01656" > < / a > < span class = "lineno" > 1656< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l01657" > < / a > < span class = "lineno" > 1657< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : leaving_candidates_) {< / div >
< div class = "line" > < a name = "l01658" > < / a > < span class = "lineno" > 1658< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > = e.coefficient();< / div >
< div class = "line" > < a name = "l01659" > < / a > < span class = "lineno" > 1659< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > > harris_ratio) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01660" > < / a > < span class = "lineno" > 1660< / span >   ++stats_num_leaving_choices;< / div >
< div class = "line" > < a name = "l01661" > < / a > < span class = "lineno" > 1661< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
< div class = "line" > < a name = "l01662" > < / a > < span class = "lineno" > 1662< / span >   < / div >
< div class = "line" > < a name = "l01663" > < / a > < span class = "lineno" > 1663< / span >   < span class = "comment" > // If the magnitudes are the same, we choose the leaving variable with< / span > < / div >
< div class = "line" > < a name = "l01664" > < / a > < span class = "lineno" > 1664< / span >   < span class = "comment" > // what is probably the more stable ratio, see< / span > < / div >
< div class = "line" > < a name = "l01665" > < / a > < span class = "lineno" > 1665< / span >   < span class = "comment" > // IsRatioMoreOrEquallyStable().< / span > < / div >
< div class = "line" > < a name = "l01666" > < / a > < span class = "lineno" > 1666< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate_magnitude = std::abs(direction_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]);< / div >
< div class = "line" > < a name = "l01667" > < / a > < span class = "lineno" > 1667< / span >   < span class = "keywordflow" > if< / span > (candidate_magnitude < pivot_magnitude) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01668" > < / a > < span class = "lineno" > 1668< / span >   < span class = "keywordflow" > if< / span > (candidate_magnitude == pivot_magnitude) {< / div >
< div class = "line" > < a name = "l01669" > < / a > < span class = "lineno" > 1669< / span >   < span class = "keywordflow" > if< / span > (!IsRatioMoreOrEquallyStable(< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > , current_ratio)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01670" > < / a > < span class = "lineno" > 1670< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > == current_ratio) {< / div >
< div class = "line" > < a name = "l01671" > < / a > < span class = "lineno" > 1671< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > , *leaving_row);< / div >
< div class = "line" > < a name = "l01672" > < / a > < span class = "lineno" > 1672< / span >   equivalent_leaving_choices_.push_back(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01673" > < / a > < span class = "lineno" > 1673< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01674" > < / a > < span class = "lineno" > 1674< / span >   }< / div >
< div class = "line" > < a name = "l01675" > < / a > < span class = "lineno" > 1675< / span >   }< / div >
< div class = "line" > < a name = "l01676" > < / a > < span class = "lineno" > 1676< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l01677" > < / a > < span class = "lineno" > 1677< / span >   current_ratio = < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > ;< / div >
< div class = "line" > < a name = "l01678" > < / a > < span class = "lineno" > 1678< / span >   pivot_magnitude = candidate_magnitude;< / div >
< div class = "line" > < a name = "l01679" > < / a > < span class = "lineno" > 1679< / span >   *leaving_row = < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l01680" > < / a > < span class = "lineno" > 1680< / span >   }< / div >
< div class = "line" > < a name = "l01681" > < / a > < span class = "lineno" > 1681< / span >   < / div >
< div class = "line" > < a name = "l01682" > < / a > < span class = "lineno" > 1682< / span >   < span class = "comment" > // Break the ties randomly.< / span > < / div >
< div class = "line" > < a name = "l01683" > < / a > < span class = "lineno" > 1683< / span >   < span class = "keywordflow" > if< / span > (!equivalent_leaving_choices_.empty()) {< / div >
< div class = "line" > < a name = "l01684" > < / a > < span class = "lineno" > 1684< / span >   equivalent_leaving_choices_.push_back(*leaving_row);< / div >
< div class = "line" > < a name = "l01685" > < / a > < span class = "lineno" > 1685< / span >   *leaving_row =< / div >
< div class = "line" > < a name = "l01686" > < / a > < span class = "lineno" > 1686< / span >   equivalent_leaving_choices_[std::uniform_int_distribution< int> (< / div >
< div class = "line" > < a name = "l01687" > < / a > < span class = "lineno" > 1687< / span >   0, equivalent_leaving_choices_.size() - 1)(random_)];< / div >
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< div class = "line" > < a name = "l01688" > < / a > < span class = "lineno" > 1688< / span >   }< / div >
< div class = "line" > < a name = "l01689" > < / a > < span class = "lineno" > 1689< / span >   < / div >
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< div class = "line" > < a name = "l01690" > < / a > < span class = "lineno" > 1690< / span >   < span class = "comment" > // Since we took care of the bound-flip at the beginning, at this point< / span > < / div >
< div class = "line" > < a name = "l01691" > < / a > < span class = "lineno" > 1691< / span >   < span class = "comment" > // we have a valid leaving row.< / span > < / div >
< div class = "line" > < a name = "l01692" > < / a > < span class = "lineno" > 1692< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > , *leaving_row);< / div >
< div class = "line" > < a name = "l01693" > < / a > < span class = "lineno" > 1693< / span >   < / div >
< div class = "line" > < a name = "l01694" > < / a > < span class = "lineno" > 1694< / span >   < span class = "comment" > // A variable already outside one of its bounds +/- tolerance is considered< / span > < / div >
< div class = "line" > < a name = "l01695" > < / a > < span class = "lineno" > 1695< / span >   < span class = "comment" > // at its bound and its ratio is zero. Not doing this may lead to a step< / span > < / div >
< div class = "line" > < a name = "l01696" > < / a > < span class = "lineno" > 1696< / span >   < span class = "comment" > // that moves the objective in the wrong direction. We may want to allow< / span > < / div >
< div class = "line" > < a name = "l01697" > < / a > < span class = "lineno" > 1697< / span >   < span class = "comment" > // such steps, but then we will need to check that it doesn' t break the< / span > < / div >
< div class = "line" > < a name = "l01698" > < / a > < span class = "lineno" > 1698< / span >   < span class = "comment" > // bounds of the other variables.< / span > < / div >
< div class = "line" > < a name = "l01699" > < / a > < span class = "lineno" > 1699< / span >   < span class = "keywordflow" > if< / span > (current_ratio < = 0.0) {< / div >
< div class = "line" > < a name = "l01700" > < / a > < span class = "lineno" > 1700< / span >   < span class = "comment" > // Instead of doing a zero step, we do a small positive step. This< / span > < / div >
< div class = "line" > < a name = "l01701" > < / a > < span class = "lineno" > 1701< / span >   < span class = "comment" > // helps on degenerate problems.< / span > < / div >
< div class = "line" > < a name = "l01702" > < / a > < span class = "lineno" > 1702< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > minimum_delta =< / div >
< div class = "line" > < a name = "l01703" > < / a > < span class = "lineno" > 1703< / span >   parameters_.degenerate_ministep_factor() *< / div >
< div class = "line" > < a name = "l01704" > < / a > < span class = "lineno" > 1704< / span >   parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01705" > < / a > < span class = "lineno" > 1705< / span >   *step_length = minimum_delta / pivot_magnitude;< / div >
< div class = "line" > < a name = "l01706" > < / a > < span class = "lineno" > 1706< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01707" > < / a > < span class = "lineno" > 1707< / span >   *step_length = current_ratio;< / div >
< div class = "line" > < a name = "l01708" > < / a > < span class = "lineno" > 1708< / span >   }< / div >
< div class = "line" > < a name = "l01709" > < / a > < span class = "lineno" > 1709< / span >   < / div >
< div class = "line" > < a name = "l01710" > < / a > < span class = "lineno" > 1710< / span >   < span class = "comment" > // Note(user): Testing the pivot at each iteration is useful for debugging< / span > < / div >
< div class = "line" > < a name = "l01711" > < / a > < span class = "lineno" > 1711< / span >   < span class = "comment" > // an LU factorization problem. Remove the false if you need to investigate< / span > < / div >
< div class = "line" > < a name = "l01712" > < / a > < span class = "lineno" > 1712< / span >   < span class = "comment" > // this, it makes sure that this will be compiled away.< / span > < / div >
< div class = "line" > < a name = "l01713" > < / a > < span class = "lineno" > 1713< / span >   < span class = "keywordflow" > if< / span > (< span class = "comment" > /* DISABLES CODE */< / span > (< span class = "keyword" > false< / span > )) {< / div >
< div class = "line" > < a name = "l01714" > < / a > < span class = "lineno" > 1714< / span >   TestPivot(entering_col, *leaving_row);< / div >
< div class = "line" > < a name = "l01715" > < / a > < span class = "lineno" > 1715< / span >   }< / div >
< div class = "line" > < a name = "l01716" > < / a > < span class = "lineno" > 1716< / span >   < / div >
< div class = "line" > < a name = "l01717" > < / a > < span class = "lineno" > 1717< / span >   < span class = "comment" > // We try various " heuristics" to avoid a small pivot.< / span > < / div >
< div class = "line" > < a name = "l01718" > < / a > < span class = "lineno" > 1718< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01719" > < / a > < span class = "lineno" > 1719< / span >   < span class = "comment" > // The smaller ' direction_[*leaving_row]' , the less precise< / span > < / div >
< div class = "line" > < a name = "l01720" > < / a > < span class = "lineno" > 1720< / span >   < span class = "comment" > // it is. So we want to avoid pivoting by such a row. Small pivots lead to< / span > < / div >
< div class = "line" > < a name = "l01721" > < / a > < span class = "lineno" > 1721< / span >   < span class = "comment" > // ill-conditioned bases or even to matrices that are not a basis at all if< / span > < / div >
< div class = "line" > < a name = "l01722" > < / a > < span class = "lineno" > 1722< / span >   < span class = "comment" > // the actual (infinite-precision) coefficient is zero.< / span > < / div >
< div class = "line" > < a name = "l01723" > < / a > < span class = "lineno" > 1723< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01724" > < / a > < span class = "lineno" > 1724< / span >   < span class = "comment" > // TODO(user): We may have to choose another entering column if< / span > < / div >
< div class = "line" > < a name = "l01725" > < / a > < span class = "lineno" > 1725< / span >   < span class = "comment" > // we cannot prevent pivoting by a small pivot.< / span > < / div >
< div class = "line" > < a name = "l01726" > < / a > < span class = "lineno" > 1726< / span >   < span class = "comment" > // (Chvatal, p.115, about epsilon2.)< / span > < / div >
< div class = "line" > < a name = "l01727" > < / a > < span class = "lineno" > 1727< / span >   < span class = "keywordflow" > if< / span > (pivot_magnitude < < / div >
< div class = "line" > < a name = "l01728" > < / a > < span class = "lineno" > 1728< / span >   parameters_.small_pivot_threshold() * direction_infinity_norm_) {< / div >
< div class = "line" > < a name = "l01729" > < / a > < span class = "lineno" > 1729< / span >   < span class = "comment" > // The first countermeasure is to recompute everything to the best< / span > < / div >
< div class = "line" > < a name = "l01730" > < / a > < span class = "lineno" > 1730< / span >   < span class = "comment" > // precision we can in the hope of avoiding such a choice. Note that this< / span > < / div >
< div class = "line" > < a name = "l01731" > < / a > < span class = "lineno" > 1731< / span >   < span class = "comment" > // helps a lot on the Netlib problems.< / span > < / div >
< div class = "line" > < a name = "l01732" > < / a > < span class = "lineno" > 1732< / span >   < span class = "keywordflow" > if< / span > (!basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l01733" > < / a > < span class = "lineno" > 1733< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Refactorizing to avoid pivoting by " < / span > < / div >
< div class = "line" > < a name = "l01734" > < / a > < span class = "lineno" > 1734< / span >   < < direction_[*leaving_row]< / div >
< div class = "line" > < a name = "l01735" > < / a > < span class = "lineno" > 1735< / span >   < < < span class = "stringliteral" > " direction_infinity_norm_ = " < / span > < < direction_infinity_norm_< / div >
< div class = "line" > < a name = "l01736" > < / a > < span class = "lineno" > 1736< / span >   < < < span class = "stringliteral" > " reduced cost = " < / span > < < reduced_cost;< / div >
< div class = "line" > < a name = "l01737" > < / a > < span class = "lineno" > 1737< / span >   *refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01738" > < / a > < span class = "lineno" > 1738< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l01739" > < / a > < span class = "lineno" > 1739< / span >   }< / div >
< div class = "line" > < a name = "l01740" > < / a > < span class = "lineno" > 1740< / span >   < / div >
< div class = "line" > < a name = "l01741" > < / a > < span class = "lineno" > 1741< / span >   < span class = "comment" > // Because of the " threshold" in ComputeHarrisRatioAndLeavingCandidates()< / span > < / div >
< div class = "line" > < a name = "l01742" > < / a > < span class = "lineno" > 1742< / span >   < span class = "comment" > // we kwnow that this pivot will still have an acceptable magnitude.< / span > < / div >
< div class = "line" > < a name = "l01743" > < / a > < span class = "lineno" > 1743< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01744" > < / a > < span class = "lineno" > 1744< / span >   < span class = "comment" > // TODO(user): An issue left to fix is that if there is no such pivot at< / span > < / div >
< div class = "line" > < a name = "l01745" > < / a > < span class = "lineno" > 1745< / span >   < span class = "comment" > // all, then we will report unbounded even if this is not really the case.< / span > < / div >
< div class = "line" > < a name = "l01746" > < / a > < span class = "lineno" > 1746< / span >   < span class = "comment" > // As of 2018/07/18, this happens on l30.mps.< / span > < / div >
< div class = "line" > < a name = "l01747" > < / a > < span class = "lineno" > 1747< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Couldn' t avoid pivoting by " < / span > < < direction_[*leaving_row]< / div >
< div class = "line" > < a name = "l01748" > < / a > < span class = "lineno" > 1748< / span >   < < < span class = "stringliteral" > " direction_infinity_norm_ = " < / span > < < direction_infinity_norm_< / div >
< div class = "line" > < a name = "l01749" > < / a > < span class = "lineno" > 1749< / span >   < < < span class = "stringliteral" > " reduced cost = " < / span > < < reduced_cost;< / div >
< div class = "line" > < a name = "l01750" > < / a > < span class = "lineno" > 1750< / span >   < a class = "code" href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > (std::abs(direction_[*leaving_row]),< / div >
< div class = "line" > < a name = "l01751" > < / a > < span class = "lineno" > 1751< / span >   parameters_.minimum_acceptable_pivot());< / div >
< div class = "line" > < a name = "l01752" > < / a > < span class = "lineno" > 1752< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > (ratio_test_stats_.abs_tested_pivot.Add(pivot_magnitude));< / div >
< div class = "line" > < a name = "l01753" > < / a > < span class = "lineno" > 1753< / span >   }< / div >
< div class = "line" > < a name = "l01754" > < / a > < span class = "lineno" > 1754< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01755" > < / a > < span class = "lineno" > 1755< / span >   }< / div >
< div class = "line" > < a name = "l01756" > < / a > < span class = "lineno" > 1756< / span >   < / div >
< div class = "line" > < a name = "l01757" > < / a > < span class = "lineno" > 1757< / span >   < span class = "comment" > // Update the target bound.< / span > < / div >
< div class = "line" > < a name = "l01758" > < / a > < span class = "lineno" > 1758< / span >   < span class = "keywordflow" > if< / span > (*leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l01759" > < / a > < span class = "lineno" > 1759< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_reduced_cost_positive = (reduced_cost > 0.0);< / div >
< div class = "line" > < a name = "l01760" > < / a > < span class = "lineno" > 1760< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_leaving_coeff_positive = (direction_[*leaving_row] > 0.0);< / div >
< div class = "line" > < a name = "l01761" > < / a > < span class = "lineno" > 1761< / span >   *< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = (is_reduced_cost_positive == is_leaving_coeff_positive)< / div >
< div class = "line" > < a name = "l01762" > < / a > < span class = "lineno" > 1762< / span >   ? upper_bound_[basis_[*leaving_row]]< / div >
< div class = "line" > < a name = "l01763" > < / a > < span class = "lineno" > 1763< / span >   : lower_bound_[basis_[*leaving_row]];< / div >
< div class = "line" > < a name = "l01764" > < / a > < span class = "lineno" > 1764< / span >   }< / div >
< div class = "line" > < a name = "l01765" > < / a > < span class = "lineno" > 1765< / span >   < / div >
< div class = "line" > < a name = "l01766" > < / a > < span class = "lineno" > 1766< / span >   < span class = "comment" > // Stats.< / span > < / div >
< div class = "line" > < a name = "l01767" > < / a > < span class = "lineno" > 1767< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > ({< / div >
< div class = "line" > < a name = "l01768" > < / a > < span class = "lineno" > 1768< / span >   ratio_test_stats_.leaving_choices.Add(stats_num_leaving_choices);< / div >
< div class = "line" > < a name = "l01769" > < / a > < span class = "lineno" > 1769< / span >   < span class = "keywordflow" > if< / span > (!equivalent_leaving_choices_.empty()) {< / div >
< div class = "line" > < a name = "l01770" > < / a > < span class = "lineno" > 1770< / span >   ratio_test_stats_.num_perfect_ties.Add(< / div >
< div class = "line" > < a name = "l01771" > < / a > < span class = "lineno" > 1771< / span >   equivalent_leaving_choices_.size());< / div >
< div class = "line" > < a name = "l01772" > < / a > < span class = "lineno" > 1772< / span >   }< / div >
< div class = "line" > < a name = "l01773" > < / a > < span class = "lineno" > 1773< / span >   < a class = "code" href = "parser_8yy_8cc.html#a33e91cd0cef6786e9e3a27ac67707207" > if< / a > (*leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l01774" > < / a > < span class = "lineno" > 1774< / span >   ratio_test_stats_.abs_used_pivot.Add(std::abs(direction_[*leaving_row]));< / div >
< div class = "line" > < a name = "l01775" > < / a > < span class = "lineno" > 1775< / span >   }< / div >
< div class = "line" > < a name = "l01776" > < / a > < span class = "lineno" > 1776< / span >   });< / div >
< div class = "line" > < a name = "l01777" > < / a > < span class = "lineno" > 1777< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l01778" > < / a > < span class = "lineno" > 1778< / span >   }< / div >
< div class = "line" > < a name = "l01779" > < / a > < span class = "lineno" > 1779< / span >   < / div >
< div class = "line" > < a name = "l01780" > < / a > < span class = "lineno" > 1780< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l01781" > < / a > < span class = "lineno" > 1781< / span >   < / div >
< div class = "line" > < a name = "l01782" > < / a > < span class = "lineno" > 1782< / span >   < span class = "comment" > // Store a row with its ratio, coefficient magnitude and target bound. This is< / span > < / div >
< div class = "line" > < a name = "l01783" > < / a > < span class = "lineno" > 1783< / span >   < span class = "comment" > // used by PrimalPhaseIChooseLeavingVariableRow(), see this function for more< / span > < / div >
< div class = "line" > < a name = "l01784" > < / a > < span class = "lineno" > 1784< / span >   < span class = "comment" > // details.< / span > < / div >
< div class = "line" > < a name = "l01785" > < / a > < span class = "lineno" > 1785< / span >   < span class = "keyword" > struct < / span > BreakPoint {< / div >
< div class = "line" > < a name = "l01786" > < / a > < span class = "lineno" > 1786< / span >   BreakPoint(RowIndex _row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > _ratio, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > _coeff_magnitude,< / div >
< div class = "line" > < a name = "l01787" > < / a > < span class = "lineno" > 1787< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > _target_bound)< / div >
< div class = "line" > < a name = "l01788" > < / a > < span class = "lineno" > 1788< / span >   : < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (_row),< / div >
< div class = "line" > < a name = "l01789" > < / a > < span class = "lineno" > 1789< / span >   < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > (_ratio),< / div >
< div class = "line" > < a name = "l01790" > < / a > < span class = "lineno" > 1790< / span >   < a class = "code" href = "revised__simplex_8cc.html#a773239be94b6b64ba8fa2367b86776be" > coeff_magnitude< / a > (_coeff_magnitude),< / div >
< div class = "line" > < a name = "l01791" > < / a > < span class = "lineno" > 1791< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > (_target_bound) {}< / div >
< div class = "line" > < a name = "l01792" > < / a > < span class = "lineno" > 1792< / span >   < / div >
< div class = "line" > < a name = "l01793" > < / a > < span class = "lineno" > 1793< / span >   < span class = "comment" > // We want to process the breakpoints by increasing ratio and decreasing< / span > < / div >
< div class = "line" > < a name = "l01794" > < / a > < span class = "lineno" > 1794< / span >   < span class = "comment" > // coefficient magnitude (if the ratios are the same). Returns false if " this" < / span > < / div >
< div class = "line" > < a name = "l01795" > < / a > < span class = "lineno" > 1795< / span >   < span class = "comment" > // is before " other" in a priority queue.< / span > < / div >
< div class = "line" > < a name = "l01796" > < / a > < span class = "lineno" > 1796< / span >   < span class = "keywordtype" > bool< / span > operator< (< span class = "keyword" > const< / span > BreakPoint& other)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01797" > < / a > < span class = "lineno" > 1797< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > == other.ratio) {< / div >
< div class = "line" > < a name = "l01798" > < / a > < span class = "lineno" > 1798< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#a773239be94b6b64ba8fa2367b86776be" > coeff_magnitude< / a > == other.coeff_magnitude) {< / div >
< div class = "line" > < a name = "l01799" > < / a > < span class = "lineno" > 1799< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > > other.row;< / div >
< div class = "line" > < a name = "l01800" > < / a > < span class = "lineno" > 1800< / span >   }< / div >
< div class = "line" > < a name = "l01801" > < / a > < span class = "lineno" > 1801< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "revised__simplex_8cc.html#a773239be94b6b64ba8fa2367b86776be" > coeff_magnitude< / a > < other.coeff_magnitude;< / div >
< div class = "line" > < a name = "l01802" > < / a > < span class = "lineno" > 1802< / span >   }< / div >
< div class = "line" > < a name = "l01803" > < / a > < span class = "lineno" > 1803< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > > other.ratio;< / div >
< div class = "line" > < a name = "l01804" > < / a > < span class = "lineno" > 1804< / span >   }< / div >
< div class = "line" > < a name = "l01805" > < / a > < span class = "lineno" > 1805< / span >   < / div >
< div class = "line" > < a name = "l01806" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > 1806< / a > < / span >   RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l01807" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > 1807< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > ;< / div >
< div class = "line" > < a name = "l01808" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#a773239be94b6b64ba8fa2367b86776be" > 1808< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#a773239be94b6b64ba8fa2367b86776be" > coeff_magnitude< / a > ;< / div >
< div class = "line" > < a name = "l01809" > < / a > < span class = "lineno" > < a class = "line" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > 1809< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ;< / div >
< div class = "line" > < a name = "l01810" > < / a > < span class = "lineno" > 1810< / span >   };< / div >
< div class = "line" > < a name = "l01811" > < / a > < span class = "lineno" > 1811< / span >   < / div >
< div class = "line" > < a name = "l01812" > < / a > < span class = "lineno" > 1812< / span >   } < span class = "comment" > // namespace< / span > < / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l01813" > < / a > < span class = "lineno" > 1813< / span >   < / div >
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< div class = "line" > < a name = "l01814" > < / a > < span class = "lineno" > 1814< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::PrimalPhaseIChooseLeavingVariableRow(< / div >
< div class = "line" > < a name = "l01815" > < / a > < span class = "lineno" > 1815< / span >   ColIndex entering_col, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost, < span class = "keywordtype" > bool< / span > * refactorize,< / div >
< div class = "line" > < a name = "l01816" > < / a > < span class = "lineno" > 1816< / span >   RowIndex* leaving_row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * step_length,< / div >
< div class = "line" > < a name = "l01817" > < / a > < span class = "lineno" > 1817< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01818" > < / a > < span class = "lineno" > 1818< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01819" > < / a > < span class = "lineno" > 1819< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (refactorize);< / div >
< div class = "line" > < a name = "l01820" > < / a > < span class = "lineno" > 1820< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l01821" > < / a > < span class = "lineno" > 1821< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (step_length);< / div >
< div class = "line" > < a name = "l01822" > < / a > < span class = "lineno" > 1822< / span >   < a class = "code" href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > DCHECK_COL_BOUNDS< / a > (entering_col);< / div >
< div class = "line" > < a name = "l01823" > < / a > < span class = "lineno" > 1823< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (0.0, reduced_cost);< / div >
< div class = "line" > < a name = "l01824" > < / a > < span class = "lineno" > 1824< / span >   < / div >
< div class = "line" > < a name = "l01825" > < / a > < span class = "lineno" > 1825< / span >   < span class = "comment" > // We initialize current_ratio with the maximum step the entering variable< / span > < / div >
< div class = "line" > < a name = "l01826" > < / a > < span class = "lineno" > 1826< / span >   < span class = "comment" > // can take (bound-flip). Note that we do not use tolerance here.< / span > < / div >
< div class = "line" > < a name = "l01827" > < / a > < span class = "lineno" > 1827< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entering_value = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (entering_col);< / div >
< div class = "line" > < a name = "l01828" > < / a > < span class = "lineno" > 1828< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > current_ratio = (reduced_cost > 0.0)< / div >
< div class = "line" > < a name = "l01829" > < / a > < span class = "lineno" > 1829< / span >   ? entering_value - lower_bound_[entering_col]< / div >
< div class = "line" > < a name = "l01830" > < / a > < span class = "lineno" > 1830< / span >   : upper_bound_[entering_col] - entering_value;< / div >
< div class = "line" > < a name = "l01831" > < / a > < span class = "lineno" > 1831< / span >   < a class = "code" href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > (current_ratio, 0.0);< / div >
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< div class = "line" > < a name = "l01832" > < / a > < span class = "lineno" > 1832< / span >   < / div >
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< div class = "line" > < a name = "l01833" > < / a > < span class = "lineno" > 1833< / span >   std::vector< BreakPoint> breakpoints;< / div >
< div class = "line" > < a name = "l01834" > < / a > < span class = "lineno" > 1834< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = parameters_.primal_feasibility_tolerance();< / div >
< div class = "line" > < a name = "l01835" > < / a > < span class = "lineno" > 1835< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l01836" > < / a > < span class = "lineno" > 1836< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > direction =< / div >
< div class = "line" > < a name = "l01837" > < / a > < span class = "lineno" > 1837< / span >   reduced_cost > 0.0 ? e.coefficient() : -e.coefficient();< / div >
< div class = "line" > < a name = "l01838" > < / a > < span class = "lineno" > 1838< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > magnitude = std::abs(direction);< / div >
< div class = "line" > < a name = "l01839" > < / a > < span class = "lineno" > 1839< / span >   < span class = "keywordflow" > if< / span > (magnitude < tolerance) < span class = "keywordflow" > continue< / span > ;< / div >
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< div class = "line" > < a name = "l01840" > < / a > < span class = "lineno" > 1840< / span >   < / div >
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< div class = "line" > < a name = "l01841" > < / a > < span class = "lineno" > 1841< / span >   < span class = "comment" > // Computes by how much we can add ' direction' to the basic variable value< / span > < / div >
< div class = "line" > < a name = "l01842" > < / a > < span class = "lineno" > 1842< / span >   < span class = "comment" > // with index ' row' until it changes of primal feasibility status. That is< / span > < / div >
< div class = "line" > < a name = "l01843" > < / a > < span class = "lineno" > 1843< / span >   < span class = "comment" > // from infeasible to feasible or from feasible to infeasible. Note that the< / span > < / div >
< div class = "line" > < a name = "l01844" > < / a > < span class = "lineno" > 1844< / span >   < span class = "comment" > // transition infeasible-> feasible-> infeasible is possible. We use< / span > < / div >
< div class = "line" > < a name = "l01845" > < / a > < span class = "lineno" > 1845< / span >   < span class = "comment" > // tolerances here, but when the step will be performed, it will move the< / span > < / div >
< div class = "line" > < a name = "l01846" > < / a > < span class = "lineno" > 1846< / span >   < span class = "comment" > // variable to the target bound (possibly taking a small negative step).< / span > < / div >
< div class = "line" > < a name = "l01847" > < / a > < span class = "lineno" > 1847< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01848" > < / a > < span class = "lineno" > 1848< / span >   < span class = "comment" > // Note(user): The negative step will only happen when the leaving variable< / span > < / div >
< div class = "line" > < a name = "l01849" > < / a > < span class = "lineno" > 1849< / span >   < span class = "comment" > // was slightly infeasible (less than tolerance). Moreover, the overall< / span > < / div >
< div class = "line" > < a name = "l01850" > < / a > < span class = "lineno" > 1850< / span >   < span class = "comment" > // infeasibility will not necessarily increase since it doesn' t take into< / span > < / div >
< div class = "line" > < a name = "l01851" > < / a > < span class = "lineno" > 1851< / span >   < span class = "comment" > // account all the variables with an infeasibility smaller than the< / span > < / div >
< div class = "line" > < a name = "l01852" > < / a > < span class = "lineno" > 1852< / span >   < span class = "comment" > // tolerance, and here we will at least improve the one of the leaving< / span > < / div >
< div class = "line" > < a name = "l01853" > < / a > < span class = "lineno" > 1853< / span >   < span class = "comment" > // variable.< / span > < / div >
< div class = "line" > < a name = "l01854" > < / a > < span class = "lineno" > 1854< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis_[e.row()];< / div >
< div class = "line" > < a name = "l01855" > < / a > < span class = "lineno" > 1855< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > GetIsBasicBitRow< / a > ().< a class = "code" href = "classoperations__research_1_1_bitset64.html#aa454a4099ee887726b8f5b4a8ed1a81d" > IsSet< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ));< / div >
< div class = "line" > < a name = "l01856" > < / a > < span class = "lineno" > 1856< / span >   < / div >
< div class = "line" > < a name = "l01857" > < / a > < span class = "lineno" > 1857< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01858" > < / a > < span class = "lineno" > 1858< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01859" > < / a > < span class = "lineno" > 1859< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01860" > < / a > < span class = "lineno" > 1860< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > to_lower = (lower_bound - tolerance - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) / direction;< / div >
< div class = "line" > < a name = "l01861" > < / a > < span class = "lineno" > 1861< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > to_upper = (upper_bound + tolerance - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) / direction;< / div >
< div class = "line" > < a name = "l01862" > < / a > < span class = "lineno" > 1862< / span >   < / div >
< div class = "line" > < a name = "l01863" > < / a > < span class = "lineno" > 1863< / span >   < span class = "comment" > // Enqueue the possible transitions. Note that the second tests exclude the< / span > < / div >
< div class = "line" > < a name = "l01864" > < / a > < span class = "lineno" > 1864< / span >   < span class = "comment" > // case where to_lower or to_upper are infinite.< / span > < / div >
< div class = "line" > < a name = "l01865" > < / a > < span class = "lineno" > 1865< / span >   < span class = "keywordflow" > if< / span > (to_lower > = 0.0 & & to_lower < current_ratio) {< / div >
< div class = "line" > < a name = "l01866" > < / a > < span class = "lineno" > 1866< / span >   breakpoints.push_back(< / div >
< div class = "line" > < a name = "l01867" > < / a > < span class = "lineno" > 1867< / span >   BreakPoint(e.row(), to_lower, magnitude, lower_bound));< / div >
< div class = "line" > < a name = "l01868" > < / a > < span class = "lineno" > 1868< / span >   }< / div >
< div class = "line" > < a name = "l01869" > < / a > < span class = "lineno" > 1869< / span >   < span class = "keywordflow" > if< / span > (to_upper > = 0.0 & & to_upper < current_ratio) {< / div >
< div class = "line" > < a name = "l01870" > < / a > < span class = "lineno" > 1870< / span >   breakpoints.push_back(< / div >
< div class = "line" > < a name = "l01871" > < / a > < span class = "lineno" > 1871< / span >   BreakPoint(e.row(), to_upper, magnitude, upper_bound));< / div >
< div class = "line" > < a name = "l01872" > < / a > < span class = "lineno" > 1872< / span >   }< / div >
< div class = "line" > < a name = "l01873" > < / a > < span class = "lineno" > 1873< / span >   }< / div >
< div class = "line" > < a name = "l01874" > < / a > < span class = "lineno" > 1874< / span >   < / div >
< div class = "line" > < a name = "l01875" > < / a > < span class = "lineno" > 1875< / span >   < span class = "comment" > // Order the breakpoints by increasing ratio and decreasing coefficient< / span > < / div >
< div class = "line" > < a name = "l01876" > < / a > < span class = "lineno" > 1876< / span >   < span class = "comment" > // magnitude (if the ratios are the same).< / span > < / div >
< div class = "line" > < a name = "l01877" > < / a > < span class = "lineno" > 1877< / span >   std::make_heap(breakpoints.begin(), breakpoints.end());< / div >
< div class = "line" > < a name = "l01878" > < / a > < span class = "lineno" > 1878< / span >   < / div >
< div class = "line" > < a name = "l01879" > < / a > < span class = "lineno" > 1879< / span >   < span class = "comment" > // Select the last breakpoint that still improves the infeasibility and has< / span > < / div >
< div class = "line" > < a name = "l01880" > < / a > < span class = "lineno" > 1880< / span >   < span class = "comment" > // the largest coefficient magnitude.< / span > < / div >
< div class = "line" > < a name = "l01881" > < / a > < span class = "lineno" > 1881< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > improvement = std::abs(reduced_cost);< / div >
< div class = "line" > < a name = "l01882" > < / a > < span class = "lineno" > 1882< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > best_magnitude = 0.0;< / div >
< div class = "line" > < a name = "l01883" > < / a > < span class = "lineno" > 1883< / span >   *leaving_row = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l01884" > < / a > < span class = "lineno" > 1884< / span >   < span class = "keywordflow" > while< / span > (!breakpoints.empty()) {< / div >
< div class = "line" > < a name = "l01885" > < / a > < span class = "lineno" > 1885< / span >   < span class = "keyword" > const< / span > BreakPoint top = breakpoints.front();< / div >
< div class = "line" > < a name = "l01886" > < / a > < span class = "lineno" > 1886< / span >   < span class = "comment" > // TODO(user): consider using > = here. That will lead to bigger ratio and< / span > < / div >
< div class = "line" > < a name = "l01887" > < / a > < span class = "lineno" > 1887< / span >   < span class = "comment" > // hence a better impact on the infeasibility. The drawback is that more< / span > < / div >
< div class = "line" > < a name = "l01888" > < / a > < span class = "lineno" > 1888< / span >   < span class = "comment" > // effort may be needed to update the reduced costs.< / span > < / div >
< div class = "line" > < a name = "l01889" > < / a > < span class = "lineno" > 1889< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01890" > < / a > < span class = "lineno" > 1890< / span >   < span class = "comment" > // TODO(user): Use a random tie breaking strategy for BreakPoint with< / span > < / div >
< div class = "line" > < a name = "l01891" > < / a > < span class = "lineno" > 1891< / span >   < span class = "comment" > // same ratio and same coefficient magnitude? Koberstein explains in his PhD< / span > < / div >
< div class = "line" > < a name = "l01892" > < / a > < span class = "lineno" > 1892< / span >   < span class = "comment" > // that it helped on the dual-simplex.< / span > < / div >
< div class = "line" > < a name = "l01893" > < / a > < span class = "lineno" > 1893< / span >   < span class = "keywordflow" > if< / span > (top.coeff_magnitude > best_magnitude) {< / div >
< div class = "line" > < a name = "l01894" > < / a > < span class = "lineno" > 1894< / span >   *leaving_row = top.row;< / div >
< div class = "line" > < a name = "l01895" > < / a > < span class = "lineno" > 1895< / span >   current_ratio = top.ratio;< / div >
< div class = "line" > < a name = "l01896" > < / a > < span class = "lineno" > 1896< / span >   best_magnitude = top.coeff_magnitude;< / div >
< div class = "line" > < a name = "l01897" > < / a > < span class = "lineno" > 1897< / span >   *< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = top.target_bound;< / div >
< div class = "line" > < a name = "l01898" > < / a > < span class = "lineno" > 1898< / span >   }< / div >
< div class = "line" > < a name = "l01899" > < / a > < span class = "lineno" > 1899< / span >   < / div >
< div class = "line" > < a name = "l01900" > < / a > < span class = "lineno" > 1900< / span >   < span class = "comment" > // As long as the sum of primal infeasibilities is decreasing, we look for< / span > < / div >
< div class = "line" > < a name = "l01901" > < / a > < span class = "lineno" > 1901< / span >   < span class = "comment" > // pivots that are numerically more stable.< / span > < / div >
< div class = "line" > < a name = "l01902" > < / a > < span class = "lineno" > 1902< / span >   improvement -= top.coeff_magnitude;< / div >
< div class = "line" > < a name = "l01903" > < / a > < span class = "lineno" > 1903< / span >   < span class = "keywordflow" > if< / span > (improvement < = 0.0) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01904" > < / a > < span class = "lineno" > 1904< / span >   std::pop_heap(breakpoints.begin(), breakpoints.end());< / div >
< div class = "line" > < a name = "l01905" > < / a > < span class = "lineno" > 1905< / span >   breakpoints.pop_back();< / div >
< div class = "line" > < a name = "l01906" > < / a > < span class = "lineno" > 1906< / span >   }< / div >
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< div class = "line" > < a name = "l01907" > < / a > < span class = "lineno" > 1907< / span >   < / div >
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< div class = "line" > < a name = "l01908" > < / a > < span class = "lineno" > 1908< / span >   < span class = "comment" > // Try to avoid a small pivot by refactorizing.< / span > < / div >
< div class = "line" > < a name = "l01909" > < / a > < span class = "lineno" > 1909< / span >   < span class = "keywordflow" > if< / span > (*leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l01910" > < / a > < span class = "lineno" > 1910< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > threshold =< / div >
< div class = "line" > < a name = "l01911" > < / a > < span class = "lineno" > 1911< / span >   parameters_.small_pivot_threshold() * direction_infinity_norm_;< / div >
< div class = "line" > < a name = "l01912" > < / a > < span class = "lineno" > 1912< / span >   < span class = "keywordflow" > if< / span > (best_magnitude < threshold & & !basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l01913" > < / a > < span class = "lineno" > 1913< / span >   *refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01914" > < / a > < span class = "lineno" > 1914< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l01915" > < / a > < span class = "lineno" > 1915< / span >   }< / div >
< div class = "line" > < a name = "l01916" > < / a > < span class = "lineno" > 1916< / span >   }< / div >
< div class = "line" > < a name = "l01917" > < / a > < span class = "lineno" > 1917< / span >   *step_length = current_ratio;< / div >
< div class = "line" > < a name = "l01918" > < / a > < span class = "lineno" > 1918< / span >   }< / div >
< div class = "line" > < a name = "l01919" > < / a > < span class = "lineno" > 1919< / span >   < / div >
< div class = "line" > < a name = "l01920" > < / a > < span class = "lineno" > 1920< / span >   < span class = "comment" > // This implements the pricing step for the dual simplex.< / span > < / div >
< div class = "line" > < a name = "l01921" > < / a > < span class = "lineno" > 1921< / span >   Status RevisedSimplex::DualChooseLeavingVariableRow(RowIndex* leaving_row,< / div >
< div class = "line" > < a name = "l01922" > < / a > < span class = "lineno" > 1922< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * cost_variation,< / div >
< div class = "line" > < a name = "l01923" > < / a > < span class = "lineno" > 1923< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l01924" > < / a > < span class = "lineno" > 1924< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l01925" > < / a > < span class = "lineno" > 1925< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (cost_variation);< / div >
< div class = "line" > < a name = "l01926" > < / a > < span class = "lineno" > 1926< / span >   < / div >
< div class = "line" > < a name = "l01927" > < / a > < span class = "lineno" > 1927< / span >   < span class = "comment" > // TODO(user): Reuse parameters_.optimization_rule() to decide if we use< / span > < / div >
< div class = "line" > < a name = "l01928" > < / a > < span class = "lineno" > 1928< / span >   < span class = "comment" > // steepest edge or the normal Dantzig pricing.< / span > < / div >
< div class = "line" > < a name = "l01929" > < / a > < span class = "lineno" > 1929< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae5fa9e57c2d31b294195ed8a9e17bfac" > DenseColumn< / a > & squared_norm = dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a1f1a686f26843ecfeb36e71f7626c330" > GetEdgeSquaredNorms< / a > ();< / div >
< div class = "line" > < a name = "l01930" > < / a > < span class = "lineno" > 1930< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01931" > < / a > < span class = "lineno" > 1931< / span >   < / div >
< div class = "line" > < a name = "l01932" > < / a > < span class = "lineno" > 1932< / span >   *leaving_row = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l01933" > < / a > < span class = "lineno" > 1933< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > best_price(0.0);< / div >
< div class = "line" > < a name = "l01934" > < / a > < span class = "lineno" > 1934< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae5fa9e57c2d31b294195ed8a9e17bfac" > DenseColumn< / a > & squared_infeasibilities =< / div >
< div class = "line" > < a name = "l01935" > < / a > < span class = "lineno" > 1935< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a1472d776e41913b79d4152d87884abde" > GetPrimalSquaredInfeasibilities< / a > ();< / div >
< div class = "line" > < a name = "l01936" > < / a > < span class = "lineno" > 1936< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l01937" > < / a > < span class = "lineno" > 1937< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > : variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a3e89d74b50bcd17a7c1a2c6143028d27" > GetPrimalInfeasiblePositions< / a > ()) {< / div >
< div class = "line" > < a name = "l01938" > < / a > < span class = "lineno" > 1938< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > scaled_best_price = best_price * squared_norm[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01939" > < / a > < span class = "lineno" > 1939< / span >   < span class = "keywordflow" > if< / span > (squared_infeasibilities[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] > = scaled_best_price) {< / div >
< div class = "line" > < a name = "l01940" > < / a > < span class = "lineno" > 1940< / span >   < span class = "keywordflow" > if< / span > (squared_infeasibilities[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == scaled_best_price) {< / div >
< div class = "line" > < a name = "l01941" > < / a > < span class = "lineno" > 1941< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (*leaving_row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
< div class = "line" > < a name = "l01942" > < / a > < span class = "lineno" > 1942< / span >   equivalent_leaving_choices_.push_back(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01943" > < / a > < span class = "lineno" > 1943< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01944" > < / a > < span class = "lineno" > 1944< / span >   }< / div >
< div class = "line" > < a name = "l01945" > < / a > < span class = "lineno" > 1945< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l01946" > < / a > < span class = "lineno" > 1946< / span >   best_price = squared_infeasibilities[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] / squared_norm[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01947" > < / a > < span class = "lineno" > 1947< / span >   *leaving_row = < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l01948" > < / a > < span class = "lineno" > 1948< / span >   }< / div >
< div class = "line" > < a name = "l01949" > < / a > < span class = "lineno" > 1949< / span >   }< / div >
< div class = "line" > < a name = "l01950" > < / a > < span class = "lineno" > 1950< / span >   < / div >
< div class = "line" > < a name = "l01951" > < / a > < span class = "lineno" > 1951< / span >   < span class = "comment" > // Break the ties randomly.< / span > < / div >
< div class = "line" > < a name = "l01952" > < / a > < span class = "lineno" > 1952< / span >   < span class = "keywordflow" > if< / span > (!equivalent_leaving_choices_.empty()) {< / div >
< div class = "line" > < a name = "l01953" > < / a > < span class = "lineno" > 1953< / span >   equivalent_leaving_choices_.push_back(*leaving_row);< / div >
< div class = "line" > < a name = "l01954" > < / a > < span class = "lineno" > 1954< / span >   *leaving_row =< / div >
< div class = "line" > < a name = "l01955" > < / a > < span class = "lineno" > 1955< / span >   equivalent_leaving_choices_[std::uniform_int_distribution< int> (< / div >
< div class = "line" > < a name = "l01956" > < / a > < span class = "lineno" > 1956< / span >   0, equivalent_leaving_choices_.size() - 1)(random_)];< / div >
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< div class = "line" > < a name = "l01957" > < / a > < span class = "lineno" > 1957< / span >   }< / div >
< div class = "line" > < a name = "l01958" > < / a > < span class = "lineno" > 1958< / span >   < / div >
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< div class = "line" > < a name = "l01959" > < / a > < span class = "lineno" > 1959< / span >   < span class = "comment" > // Return right away if there is no leaving variable.< / span > < / div >
< div class = "line" > < a name = "l01960" > < / a > < span class = "lineno" > 1960< / span >   < span class = "comment" > // Fill cost_variation and target_bound otherwise.< / span > < / div >
< div class = "line" > < a name = "l01961" > < / a > < span class = "lineno" > 1961< / span >   < span class = "keywordflow" > if< / span > (*leaving_row == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l01962" > < / a > < span class = "lineno" > 1962< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[*leaving_row];< / div >
< div class = "line" > < a name = "l01963" > < / a > < span class = "lineno" > 1963< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col);< / div >
< div class = "line" > < a name = "l01964" > < / a > < span class = "lineno" > 1964< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > < lower_bound_[leaving_col]) {< / div >
< div class = "line" > < a name = "l01965" > < / a > < span class = "lineno" > 1965< / span >   *cost_variation = lower_bound_[leaving_col] - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ;< / div >
< div class = "line" > < a name = "l01966" > < / a > < span class = "lineno" > 1966< / span >   *< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = lower_bound_[leaving_col];< / div >
< div class = "line" > < a name = "l01967" > < / a > < span class = "lineno" > 1967< / span >   < a class = "code" href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > (*cost_variation, 0.0);< / div >
< div class = "line" > < a name = "l01968" > < / a > < span class = "lineno" > 1968< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01969" > < / a > < span class = "lineno" > 1969< / span >   *cost_variation = upper_bound_[leaving_col] - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ;< / div >
< div class = "line" > < a name = "l01970" > < / a > < span class = "lineno" > 1970< / span >   *< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = upper_bound_[leaving_col];< / div >
< div class = "line" > < a name = "l01971" > < / a > < span class = "lineno" > 1971< / span >   < a class = "code" href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > (*cost_variation, 0.0);< / div >
< div class = "line" > < a name = "l01972" > < / a > < span class = "lineno" > 1972< / span >   }< / div >
< div class = "line" > < a name = "l01973" > < / a > < span class = "lineno" > 1973< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l01974" > < / a > < span class = "lineno" > 1974< / span >   }< / div >
< div class = "line" > < a name = "l01975" > < / a > < span class = "lineno" > 1975< / span >   < / div >
< div class = "line" > < a name = "l01976" > < / a > < span class = "lineno" > 1976< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l01977" > < / a > < span class = "lineno" > 1977< / span >   < / div >
< div class = "line" > < a name = "l01978" > < / a > < span class = "lineno" > 1978< / span >   < span class = "comment" > // Returns true if a basic variable with given cost and type is to be considered< / span > < / div >
< div class = "line" > < a name = "l01979" > < / a > < span class = "lineno" > 1979< / span >   < span class = "comment" > // as a leaving candidate for the dual phase I. This utility function is used< / span > < / div >
< div class = "line" > < a name = "l01980" > < / a > < span class = "lineno" > 1980< / span >   < span class = "comment" > // to keep is_dual_entering_candidate_ up to date.< / span > < / div >
< div class = "line" > < a name = "l01981" > < / a > < span class = "lineno" > 1981< / span >   < span class = "keywordtype" > bool< / span > IsDualPhaseILeavingCandidate(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866a" > VariableType< / a > type,< / div >
< div class = "line" > < a name = "l01982" > < / a > < span class = "lineno" > 1982< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > threshold) {< / div >
< div class = "line" > < a name = "l01983" > < / a > < span class = "lineno" > 1983< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > == 0.0) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01984" > < / a > < span class = "lineno" > 1984< / span >   < span class = "keywordflow" > return< / span > type == < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa62e32b9a6efb029208f576ee123b459f" > VariableType::UPPER_AND_LOWER_BOUNDED< / a > ||< / div >
< div class = "line" > < a name = "l01985" > < / a > < span class = "lineno" > 1985< / span >   type == < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aaaa56837dd3f2917e1e13f3173b596103" > VariableType::FIXED_VARIABLE< / a > ||< / div >
< div class = "line" > < a name = "l01986" > < / a > < span class = "lineno" > 1986< / span >   (type == < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aae7243c883ff6508ee41b3b1339a7e8f1" > VariableType::UPPER_BOUNDED< / a > & & < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > < -threshold) ||< / div >
< div class = "line" > < a name = "l01987" > < / a > < span class = "lineno" > 1987< / span >   (type == < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa9972b9c8a6068625d6cf1f789f3fd872" > VariableType::LOWER_BOUNDED< / a > & & < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > > threshold);< / div >
< div class = "line" > < a name = "l01988" > < / a > < span class = "lineno" > 1988< / span >   }< / div >
< div class = "line" > < a name = "l01989" > < / a > < span class = "lineno" > 1989< / span >   < / div >
< div class = "line" > < a name = "l01990" > < / a > < span class = "lineno" > 1990< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l01991" > < / a > < span class = "lineno" > 1991< / span >   < / div >
< div class = "line" > < a name = "l01992" > < / a > < span class = "lineno" > 1992< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DualPhaseIUpdatePrice(RowIndex leaving_row,< / div >
< div class = "line" > < a name = "l01993" > < / a > < span class = "lineno" > 1993< / span >   ColIndex entering_col) {< / div >
< div class = "line" > < a name = "l01994" > < / a > < span class = "lineno" > 1994< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l01995" > < / a > < span class = "lineno" > 1995< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3fe3250e630f7fc5b37f2340ab79c566" > VariableTypeRow< / a > & variable_type = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ();< / div >
< div class = "line" > < a name = "l01996" > < / a > < span class = "lineno" > 1996< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > threshold = parameters_.ratio_test_zero_threshold();< / div >
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< div class = "line" > < a name = "l01997" > < / a > < span class = "lineno" > 1997< / span >   < / div >
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< div class = "line" > < a name = "l01998" > < / a > < span class = "lineno" > 1998< / span >   < span class = "comment" > // Convert the dual_pricing_vector_ from the old basis into the new one (which< / span > < / div >
< div class = "line" > < a name = "l01999" > < / a > < span class = "lineno" > 1999< / span >   < span class = "comment" > // is the same as multiplying it by an Eta matrix corresponding to the< / span > < / div >
< div class = "line" > < a name = "l02000" > < / a > < span class = "lineno" > 2000< / span >   < span class = "comment" > // direction).< / span > < / div >
< div class = "line" > < a name = "l02001" > < / a > < span class = "lineno" > 2001< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > step =< / div >
< div class = "line" > < a name = "l02002" > < / a > < span class = "lineno" > 2002< / span >   dual_pricing_vector_[leaving_row] / direction_[leaving_row];< / div >
< div class = "line" > < a name = "l02003" > < / a > < span class = "lineno" > 2003< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l02004" > < / a > < span class = "lineno" > 2004< / span >   dual_pricing_vector_[e.row()] -= e.coefficient() * step;< / div >
< div class = "line" > < a name = "l02005" > < / a > < span class = "lineno" > 2005< / span >   is_dual_entering_candidate_.< a class = "code" href = "classoperations__research_1_1_bitset64.html#a76e58f3dd327215d28ea8c48f8c86009" > Set< / a > (< / div >
< div class = "line" > < a name = "l02006" > < / a > < span class = "lineno" > 2006< / span >   e.row(), IsDualPhaseILeavingCandidate(dual_pricing_vector_[e.row()],< / div >
< div class = "line" > < a name = "l02007" > < / a > < span class = "lineno" > 2007< / span >   variable_type[basis_[e.row()]],< / div >
< div class = "line" > < a name = "l02008" > < / a > < span class = "lineno" > 2008< / span >   threshold));< / div >
< div class = "line" > < a name = "l02009" > < / a > < span class = "lineno" > 2009< / span >   }< / div >
< div class = "line" > < a name = "l02010" > < / a > < span class = "lineno" > 2010< / span >   dual_pricing_vector_[leaving_row] = step;< / div >
< div class = "line" > < a name = "l02011" > < / a > < span class = "lineno" > 2011< / span >   < / div >
< div class = "line" > < a name = "l02012" > < / a > < span class = "lineno" > 2012< / span >   < span class = "comment" > // The entering_col which was dual-infeasible is now dual-feasible, so we< / span > < / div >
< div class = "line" > < a name = "l02013" > < / a > < span class = "lineno" > 2013< / span >   < span class = "comment" > // have to remove it from the infeasibility sum.< / span > < / div >
< div class = "line" > < a name = "l02014" > < / a > < span class = "lineno" > 2014< / span >   dual_pricing_vector_[leaving_row] -=< / div >
< div class = "line" > < a name = "l02015" > < / a > < span class = "lineno" > 2015< / span >   dual_infeasibility_improvement_direction_[entering_col];< / div >
< div class = "line" > < a name = "l02016" > < / a > < span class = "lineno" > 2016< / span >   < span class = "keywordflow" > if< / span > (dual_infeasibility_improvement_direction_[entering_col] != 0.0) {< / div >
< div class = "line" > < a name = "l02017" > < / a > < span class = "lineno" > 2017< / span >   --num_dual_infeasible_positions_;< / div >
< div class = "line" > < a name = "l02018" > < / a > < span class = "lineno" > 2018< / span >   }< / div >
< div class = "line" > < a name = "l02019" > < / a > < span class = "lineno" > 2019< / span >   dual_infeasibility_improvement_direction_[entering_col] = 0.0;< / div >
< div class = "line" > < a name = "l02020" > < / a > < span class = "lineno" > 2020< / span >   < / div >
< div class = "line" > < a name = "l02021" > < / a > < span class = "lineno" > 2021< / span >   < span class = "comment" > // The leaving variable will also be dual-feasible.< / span > < / div >
< div class = "line" > < a name = "l02022" > < / a > < span class = "lineno" > 2022< / span >   dual_infeasibility_improvement_direction_[basis_[leaving_row]] = 0.0;< / div >
< div class = "line" > < a name = "l02023" > < / a > < span class = "lineno" > 2023< / span >   < / div >
< div class = "line" > < a name = "l02024" > < / a > < span class = "lineno" > 2024< / span >   < span class = "comment" > // Update the leaving row entering candidate status.< / span > < / div >
< div class = "line" > < a name = "l02025" > < / a > < span class = "lineno" > 2025< / span >   is_dual_entering_candidate_.< a class = "code" href = "classoperations__research_1_1_bitset64.html#a76e58f3dd327215d28ea8c48f8c86009" > Set< / a > (< / div >
< div class = "line" > < a name = "l02026" > < / a > < span class = "lineno" > 2026< / span >   leaving_row,< / div >
< div class = "line" > < a name = "l02027" > < / a > < span class = "lineno" > 2027< / span >   IsDualPhaseILeavingCandidate(dual_pricing_vector_[leaving_row],< / div >
< div class = "line" > < a name = "l02028" > < / a > < span class = "lineno" > 2028< / span >   variable_type[entering_col], threshold));< / div >
< div class = "line" > < a name = "l02029" > < / a > < span class = "lineno" > 2029< / span >   }< / div >
< div class = "line" > < a name = "l02030" > < / a > < span class = "lineno" > 2030< / span >   < / div >
< div class = "line" > < a name = "l02031" > < / a > < span class = "lineno" > 2031< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > Cols> < / div >
< div class = "line" > < a name = "l02032" > < / a > < span class = "lineno" > 2032< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DualPhaseIUpdatePriceOnReducedCostChange(< / div >
< div class = "line" > < a name = "l02033" > < / a > < span class = "lineno" > 2033< / span >   < span class = "keyword" > const< / span > Cols& cols) {< / div >
< div class = "line" > < a name = "l02034" > < / a > < span class = "lineno" > 2034< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02035" > < / a > < span class = "lineno" > 2035< / span >   < span class = "keywordtype" > bool< / span > something_to_do = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02036" > < / a > < span class = "lineno" > 2036< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#aaf3efa52c50a245bf2fc964386a15d49" > DenseBitRow< / a > & can_decrease = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a71d4734d51e7037c043b68a74bd7857f" > GetCanDecreaseBitRow< / a > ();< / div >
< div class = "line" > < a name = "l02037" > < / a > < span class = "lineno" > 2037< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#aaf3efa52c50a245bf2fc964386a15d49" > DenseBitRow< / a > & can_increase = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a6cc56ab5da3a82aa2793d18a37f422c4" > GetCanIncreaseBitRow< / a > ();< / div >
< div class = "line" > < a name = "l02038" > < / a > < span class = "lineno" > 2038< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & reduced_costs = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l02039" > < / a > < span class = "lineno" > 2039< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa6a9551b792028d16dc7123c80f429d1" > GetDualFeasibilityTolerance< / a > ();< / div >
< div class = "line" > < a name = "l02040" > < / a > < span class = "lineno" > 2040< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : cols) {< / div >
< div class = "line" > < a name = "l02041" > < / a > < span class = "lineno" > 2041< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost = reduced_costs[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02042" > < / a > < span class = "lineno" > 2042< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > sign =< / div >
< div class = "line" > < a name = "l02043" > < / a > < span class = "lineno" > 2043< / span >   (can_increase.IsSet(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) & & reduced_cost < -tolerance) ? 1.0< / div >
< div class = "line" > < a name = "l02044" > < / a > < span class = "lineno" > 2044< / span >   : (can_decrease.IsSet(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) & & reduced_cost > tolerance) ? -1.0< / div >
< div class = "line" > < a name = "l02045" > < / a > < span class = "lineno" > 2045< / span >   : 0.0;< / div >
< div class = "line" > < a name = "l02046" > < / a > < span class = "lineno" > 2046< / span >   < span class = "keywordflow" > if< / span > (sign != dual_infeasibility_improvement_direction_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l02047" > < / a > < span class = "lineno" > 2047< / span >   < span class = "keywordflow" > if< / span > (sign == 0.0) {< / div >
< div class = "line" > < a name = "l02048" > < / a > < span class = "lineno" > 2048< / span >   --num_dual_infeasible_positions_;< / div >
< div class = "line" > < a name = "l02049" > < / a > < span class = "lineno" > 2049< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (dual_infeasibility_improvement_direction_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == 0.0) {< / div >
< div class = "line" > < a name = "l02050" > < / a > < span class = "lineno" > 2050< / span >   ++num_dual_infeasible_positions_;< / div >
< div class = "line" > < a name = "l02051" > < / a > < span class = "lineno" > 2051< / span >   }< / div >
< div class = "line" > < a name = "l02052" > < / a > < span class = "lineno" > 2052< / span >   < span class = "keywordflow" > if< / span > (!something_to_do) {< / div >
< div class = "line" > < a name = "l02053" > < / a > < span class = "lineno" > 2053< / span >   initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ae0473e18a367af671dc3f08063c80da4" > values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_rows_, 0.0);< / div >
< div class = "line" > < a name = "l02054" > < / a > < span class = "lineno" > 2054< / span >   initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#a824e6b41b839a9f0ce98b10d3b84046d" > ClearSparseMask< / a > ();< / div >
< div class = "line" > < a name = "l02055" > < / a > < span class = "lineno" > 2055< / span >   initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ac146d47daa294f7e6546c7569c9c881b" > non_zeros< / a > .clear();< / div >
< div class = "line" > < a name = "l02056" > < / a > < span class = "lineno" > 2056< / span >   something_to_do = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02057" > < / a > < span class = "lineno" > 2057< / span >   }< / div >
< div class = "line" > < a name = "l02058" > < / a > < span class = "lineno" > 2058< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a6e49e4127a33039fcccc6e50380faefa" > ColumnAddMultipleToSparseScatteredColumn< / a > (< / div >
< div class = "line" > < a name = "l02059" > < / a > < span class = "lineno" > 2059< / span >   < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , sign - dual_infeasibility_improvement_direction_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
< div class = "line" > < a name = "l02060" > < / a > < span class = "lineno" > 2060< / span >   & initially_all_zero_scratchpad_);< / div >
< div class = "line" > < a name = "l02061" > < / a > < span class = "lineno" > 2061< / span >   dual_infeasibility_improvement_direction_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = sign;< / div >
< div class = "line" > < a name = "l02062" > < / a > < span class = "lineno" > 2062< / span >   }< / div >
< div class = "line" > < a name = "l02063" > < / a > < span class = "lineno" > 2063< / span >   }< / div >
< div class = "line" > < a name = "l02064" > < / a > < span class = "lineno" > 2064< / span >   < span class = "keywordflow" > if< / span > (something_to_do) {< / div >
< div class = "line" > < a name = "l02065" > < / a > < span class = "lineno" > 2065< / span >   initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#aa01dd1032c527cbadf34ea39a02f799e" > ClearNonZerosIfTooDense< / a > ();< / div >
< div class = "line" > < a name = "l02066" > < / a > < span class = "lineno" > 2066< / span >   initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#a824e6b41b839a9f0ce98b10d3b84046d" > ClearSparseMask< / a > ();< / div >
< div class = "line" > < a name = "l02067" > < / a > < span class = "lineno" > 2067< / span >   < / div >
< div class = "line" > < a name = "l02068" > < / a > < span class = "lineno" > 2068< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3fe3250e630f7fc5b37f2340ab79c566" > VariableTypeRow< / a > & variable_type = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ();< / div >
< div class = "line" > < a name = "l02069" > < / a > < span class = "lineno" > 2069< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > threshold = parameters_.ratio_test_zero_threshold();< / div >
< div class = "line" > < a name = "l02070" > < / a > < span class = "lineno" > 2070< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aeaeb43840844cc69a88dc924b282b4c7" > RightSolve< / a > (& initially_all_zero_scratchpad_);< / div >
< div class = "line" > < a name = "l02071" > < / a > < span class = "lineno" > 2071< / span >   < span class = "keywordflow" > if< / span > (initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ac146d47daa294f7e6546c7569c9c881b" > non_zeros< / a > .empty()) {< / div >
< div class = "line" > < a name = "l02072" > < / a > < span class = "lineno" > 2072< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l02073" > < / a > < span class = "lineno" > 2073< / span >   < span class = "keywordflow" > if< / span > (initially_all_zero_scratchpad_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == 0.0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02074" > < / a > < span class = "lineno" > 2074< / span >   dual_pricing_vector_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] += initially_all_zero_scratchpad_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02075" > < / a > < span class = "lineno" > 2075< / span >   is_dual_entering_candidate_.< a class = "code" href = "classoperations__research_1_1_bitset64.html#a76e58f3dd327215d28ea8c48f8c86009" > Set< / a > (< / div >
< div class = "line" > < a name = "l02076" > < / a > < span class = "lineno" > 2076< / span >   < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , IsDualPhaseILeavingCandidate(dual_pricing_vector_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ],< / div >
< div class = "line" > < a name = "l02077" > < / a > < span class = "lineno" > 2077< / span >   variable_type[basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]],< / div >
< div class = "line" > < a name = "l02078" > < / a > < span class = "lineno" > 2078< / span >   threshold));< / div >
< div class = "line" > < a name = "l02079" > < / a > < span class = "lineno" > 2079< / span >   }< / div >
< div class = "line" > < a name = "l02080" > < / a > < span class = "lineno" > 2080< / span >   initially_all_zero_scratchpad_.< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ae0473e18a367af671dc3f08063c80da4" > values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_rows_);< / div >
< div class = "line" > < a name = "l02081" > < / a > < span class = "lineno" > 2081< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02082" > < / a > < span class = "lineno" > 2082< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : initially_all_zero_scratchpad_) {< / div >
< div class = "line" > < a name = "l02083" > < / a > < span class = "lineno" > 2083< / span >   dual_pricing_vector_[e.row()] += e.coefficient();< / div >
< div class = "line" > < a name = "l02084" > < / a > < span class = "lineno" > 2084< / span >   initially_all_zero_scratchpad_[e.row()] = 0.0;< / div >
< div class = "line" > < a name = "l02085" > < / a > < span class = "lineno" > 2085< / span >   is_dual_entering_candidate_.< a class = "code" href = "classoperations__research_1_1_bitset64.html#a76e58f3dd327215d28ea8c48f8c86009" > Set< / a > (< / div >
< div class = "line" > < a name = "l02086" > < / a > < span class = "lineno" > 2086< / span >   e.row(), IsDualPhaseILeavingCandidate(< / div >
< div class = "line" > < a name = "l02087" > < / a > < span class = "lineno" > 2087< / span >   dual_pricing_vector_[e.row()],< / div >
< div class = "line" > < a name = "l02088" > < / a > < span class = "lineno" > 2088< / span >   variable_type[basis_[e.row()]], threshold));< / div >
< div class = "line" > < a name = "l02089" > < / a > < span class = "lineno" > 2089< / span >   }< / div >
< div class = "line" > < a name = "l02090" > < / a > < span class = "lineno" > 2090< / span >   }< / div >
< div class = "line" > < a name = "l02091" > < / a > < span class = "lineno" > 2091< / span >   initially_all_zero_scratchpad_.non_zeros.clear();< / div >
< div class = "line" > < a name = "l02092" > < / a > < span class = "lineno" > 2092< / span >   }< / div >
< div class = "line" > < a name = "l02093" > < / a > < span class = "lineno" > 2093< / span >   }< / div >
< div class = "line" > < a name = "l02094" > < / a > < span class = "lineno" > 2094< / span >   < / div >
< div class = "line" > < a name = "l02095" > < / a > < span class = "lineno" > 2095< / span >   Status RevisedSimplex::DualPhaseIChooseLeavingVariableRow(< / div >
< div class = "line" > < a name = "l02096" > < / a > < span class = "lineno" > 2096< / span >   RowIndex* leaving_row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * cost_variation,< / div >
< div class = "line" > < a name = "l02097" > < / a > < span class = "lineno" > 2097< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > * < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l02098" > < / a > < span class = "lineno" > 2098< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02099" > < / a > < span class = "lineno" > 2099< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l02100" > < / a > < span class = "lineno" > 2100< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (cost_variation);< / div >
< div class = "line" > < a name = "l02101" > < / a > < span class = "lineno" > 2101< / span >   < / div >
< div class = "line" > < a name = "l02102" > < / a > < span class = "lineno" > 2102< / span >   < span class = "comment" > // dual_infeasibility_improvement_direction_ is zero for dual-feasible< / span > < / div >
< div class = "line" > < a name = "l02103" > < / a > < span class = "lineno" > 2103< / span >   < span class = "comment" > // positions and contains the sign in which the reduced cost of this column< / span > < / div >
< div class = "line" > < a name = "l02104" > < / a > < span class = "lineno" > 2104< / span >   < span class = "comment" > // needs to move to improve the feasibility otherwise (+1 or -1).< / span > < / div >
< div class = "line" > < a name = "l02105" > < / a > < span class = "lineno" > 2105< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02106" > < / a > < span class = "lineno" > 2106< / span >   < span class = "comment" > // Its current value was the one used to compute dual_pricing_vector_ and< / span > < / div >
< div class = "line" > < a name = "l02107" > < / a > < span class = "lineno" > 2107< / span >   < span class = "comment" > // was updated accordingly by DualPhaseIUpdatePrice().< / span > < / div >
< div class = "line" > < a name = "l02108" > < / a > < span class = "lineno" > 2108< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02109" > < / a > < span class = "lineno" > 2109< / span >   < span class = "comment" > // If more variables changed of dual-feasibility status during the last< / span > < / div >
< div class = "line" > < a name = "l02110" > < / a > < span class = "lineno" > 2110< / span >   < span class = "comment" > // iteration, we need to call DualPhaseIUpdatePriceOnReducedCostChange() to< / span > < / div >
< div class = "line" > < a name = "l02111" > < / a > < span class = "lineno" > 2111< / span >   < span class = "comment" > // take them into account.< / span > < / div >
< div class = "line" > < a name = "l02112" > < / a > < span class = "lineno" > 2112< / span >   < span class = "keywordflow" > if< / span > (reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5b05974f9610779eea6c8594ed42405c" > AreReducedCostsRecomputed< / a > () ||< / div >
< div class = "line" > < a name = "l02113" > < / a > < span class = "lineno" > 2113< / span >   dual_pricing_vector_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a644718bb2fb240de962dc3c9a1fdf0dc" > empty< / a > ()) {< / div >
< div class = "line" > < a name = "l02114" > < / a > < span class = "lineno" > 2114< / span >   < span class = "comment" > // Recompute everything from scratch.< / span > < / div >
< div class = "line" > < a name = "l02115" > < / a > < span class = "lineno" > 2115< / span >   num_dual_infeasible_positions_ = 0;< / div >
< div class = "line" > < a name = "l02116" > < / a > < span class = "lineno" > 2116< / span >   dual_pricing_vector_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_rows_);< / div >
< div class = "line" > < a name = "l02117" > < / a > < span class = "lineno" > 2117< / span >   is_dual_entering_candidate_.< a class = "code" href = "classoperations__research_1_1_bitset64.html#a039b0192ce008be5451bc87ca5eea65c" > ClearAndResize< / a > (num_rows_);< / div >
< div class = "line" > < a name = "l02118" > < / a > < span class = "lineno" > 2118< / span >   dual_infeasibility_improvement_direction_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_cols_);< / div >
< div class = "line" > < a name = "l02119" > < / a > < span class = "lineno" > 2119< / span >   DualPhaseIUpdatePriceOnReducedCostChange(< / div >
< div class = "line" > < a name = "l02120" > < / a > < span class = "lineno" > 2120< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ac4385751c629a96a6d1ef5ac70af45e1" > GetIsRelevantBitRow< / a > ());< / div >
< div class = "line" > < a name = "l02121" > < / a > < span class = "lineno" > 2121< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02122" > < / a > < span class = "lineno" > 2122< / span >   < span class = "comment" > // Update row is still equal to the row used during the last iteration< / span > < / div >
< div class = "line" > < a name = "l02123" > < / a > < span class = "lineno" > 2123< / span >   < span class = "comment" > // to update the reduced costs.< / span > < / div >
< div class = "line" > < a name = "l02124" > < / a > < span class = "lineno" > 2124< / span >   DualPhaseIUpdatePriceOnReducedCostChange(update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#af8e957f1c8389089554ded7bd2b7b45f" > GetNonZeroPositions< / a > ());< / div >
< div class = "line" > < a name = "l02125" > < / a > < span class = "lineno" > 2125< / span >   }< / div >
< div class = "line" > < a name = "l02126" > < / a > < span class = "lineno" > 2126< / span >   < / div >
< div class = "line" > < a name = "l02127" > < / a > < span class = "lineno" > 2127< / span >   < span class = "comment" > // If there is no dual-infeasible position, we are done.< / span > < / div >
< div class = "line" > < a name = "l02128" > < / a > < span class = "lineno" > 2128< / span >   *leaving_row = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l02129" > < / a > < span class = "lineno" > 2129< / span >   < span class = "keywordflow" > if< / span > (num_dual_infeasible_positions_ == 0) < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02130" > < / a > < span class = "lineno" > 2130< / span >   < / div >
< div class = "line" > < a name = "l02131" > < / a > < span class = "lineno" > 2131< / span >   < span class = "comment" > // TODO(user): Reuse parameters_.optimization_rule() to decide if we use< / span > < / div >
< div class = "line" > < a name = "l02132" > < / a > < span class = "lineno" > 2132< / span >   < span class = "comment" > // steepest edge or the normal Dantzig pricing.< / span > < / div >
< div class = "line" > < a name = "l02133" > < / a > < span class = "lineno" > 2133< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae5fa9e57c2d31b294195ed8a9e17bfac" > DenseColumn< / a > & squared_norm = dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a1f1a686f26843ecfeb36e71f7626c330" > GetEdgeSquaredNorms< / a > ();< / div >
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< div class = "line" > < a name = "l02134" > < / a > < span class = "lineno" > 2134< / span >   < / div >
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< div class = "line" > < a name = "l02135" > < / a > < span class = "lineno" > 2135< / span >   < span class = "comment" > // Now take a leaving variable that maximizes the infeasibility variation and< / span > < / div >
< div class = "line" > < a name = "l02136" > < / a > < span class = "lineno" > 2136< / span >   < span class = "comment" > // can leave the basis while being dual-feasible.< / span > < / div >
< div class = "line" > < a name = "l02137" > < / a > < span class = "lineno" > 2137< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > best_price(0.0);< / div >
< div class = "line" > < a name = "l02138" > < / a > < span class = "lineno" > 2138< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l02139" > < / a > < span class = "lineno" > 2139< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > : is_dual_entering_candidate_) {< / div >
< div class = "line" > < a name = "l02140" > < / a > < span class = "lineno" > 2140< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > squared_cost = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1dcd08b0f6c19cd4a302bb5a3a6ea06e" > Square< / a > (dual_pricing_vector_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]);< / div >
< div class = "line" > < a name = "l02141" > < / a > < span class = "lineno" > 2141< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > scaled_best_price = best_price * squared_norm[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02142" > < / a > < span class = "lineno" > 2142< / span >   < span class = "keywordflow" > if< / span > (squared_cost > = scaled_best_price) {< / div >
< div class = "line" > < a name = "l02143" > < / a > < span class = "lineno" > 2143< / span >   < span class = "keywordflow" > if< / span > (squared_cost == scaled_best_price) {< / div >
< div class = "line" > < a name = "l02144" > < / a > < span class = "lineno" > 2144< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (*leaving_row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
< div class = "line" > < a name = "l02145" > < / a > < span class = "lineno" > 2145< / span >   equivalent_leaving_choices_.push_back(< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l02146" > < / a > < span class = "lineno" > 2146< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02147" > < / a > < span class = "lineno" > 2147< / span >   }< / div >
< div class = "line" > < a name = "l02148" > < / a > < span class = "lineno" > 2148< / span >   equivalent_leaving_choices_.clear();< / div >
< div class = "line" > < a name = "l02149" > < / a > < span class = "lineno" > 2149< / span >   best_price = squared_cost / squared_norm[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02150" > < / a > < span class = "lineno" > 2150< / span >   *leaving_row = < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l02151" > < / a > < span class = "lineno" > 2151< / span >   }< / div >
< div class = "line" > < a name = "l02152" > < / a > < span class = "lineno" > 2152< / span >   }< / div >
< div class = "line" > < a name = "l02153" > < / a > < span class = "lineno" > 2153< / span >   < / div >
< div class = "line" > < a name = "l02154" > < / a > < span class = "lineno" > 2154< / span >   < span class = "comment" > // Break the ties randomly.< / span > < / div >
< div class = "line" > < a name = "l02155" > < / a > < span class = "lineno" > 2155< / span >   < span class = "keywordflow" > if< / span > (!equivalent_leaving_choices_.empty()) {< / div >
< div class = "line" > < a name = "l02156" > < / a > < span class = "lineno" > 2156< / span >   equivalent_leaving_choices_.push_back(*leaving_row);< / div >
< div class = "line" > < a name = "l02157" > < / a > < span class = "lineno" > 2157< / span >   *leaving_row =< / div >
< div class = "line" > < a name = "l02158" > < / a > < span class = "lineno" > 2158< / span >   equivalent_leaving_choices_[std::uniform_int_distribution< int> (< / div >
< div class = "line" > < a name = "l02159" > < / a > < span class = "lineno" > 2159< / span >   0, equivalent_leaving_choices_.size() - 1)(random_)];< / div >
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< div class = "line" > < a name = "l02160" > < / a > < span class = "lineno" > 2160< / span >   }< / div >
< div class = "line" > < a name = "l02161" > < / a > < span class = "lineno" > 2161< / span >   < / div >
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< div class = "line" > < a name = "l02162" > < / a > < span class = "lineno" > 2162< / span >   < span class = "comment" > // Returns right away if there is no leaving variable or fill the other< / span > < / div >
< div class = "line" > < a name = "l02163" > < / a > < span class = "lineno" > 2163< / span >   < span class = "comment" > // return values otherwise.< / span > < / div >
< div class = "line" > < a name = "l02164" > < / a > < span class = "lineno" > 2164< / span >   < span class = "keywordflow" > if< / span > (*leaving_row == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02165" > < / a > < span class = "lineno" > 2165< / span >   *cost_variation = dual_pricing_vector_[*leaving_row];< / div >
< div class = "line" > < a name = "l02166" > < / a > < span class = "lineno" > 2166< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[*leaving_row];< / div >
< div class = "line" > < a name = "l02167" > < / a > < span class = "lineno" > 2167< / span >   < span class = "keywordflow" > if< / span > (*cost_variation < 0.0) {< / div >
< div class = "line" > < a name = "l02168" > < / a > < span class = "lineno" > 2168< / span >   *< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = upper_bound_[leaving_col];< / div >
< div class = "line" > < a name = "l02169" > < / a > < span class = "lineno" > 2169< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02170" > < / a > < span class = "lineno" > 2170< / span >   *< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = lower_bound_[leaving_col];< / div >
< div class = "line" > < a name = "l02171" > < / a > < span class = "lineno" > 2171< / span >   }< / div >
< div class = "line" > < a name = "l02172" > < / a > < span class = "lineno" > 2172< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (*< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02173" > < / a > < span class = "lineno" > 2173< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02174" > < / a > < span class = "lineno" > 2174< / span >   }< / div >
< div class = "line" > < a name = "l02175" > < / a > < span class = "lineno" > 2175< / span >   < / div >
< div class = "line" > < a name = "l02176" > < / a > < span class = "lineno" > 2176< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > typename< / span > BoxedVariableCols> < / div >
< div class = "line" > < a name = "l02177" > < / a > < span class = "lineno" > 2177< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::MakeBoxedVariableDualFeasible(< / div >
< div class = "line" > < a name = "l02178" > < / a > < span class = "lineno" > 2178< / span >   < span class = "keyword" > const< / span > BoxedVariableCols& cols, < span class = "keywordtype" > bool< / span > update_basic_values) {< / div >
< div class = "line" > < a name = "l02179" > < / a > < span class = "lineno" > 2179< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02180" > < / a > < span class = "lineno" > 2180< / span >   std::vector< ColIndex> changed_cols;< / div >
< div class = "line" > < a name = "l02181" > < / a > < span class = "lineno" > 2181< / span >   < / div >
< div class = "line" > < a name = "l02182" > < / a > < span class = "lineno" > 2182< / span >   < span class = "comment" > // It is important to flip bounds within a tolerance because of precision< / span > < / div >
< div class = "line" > < a name = "l02183" > < / a > < span class = "lineno" > 2183< / span >   < span class = "comment" > // errors. Otherwise, this leads to cycling on many of the Netlib problems< / span > < / div >
< div class = "line" > < a name = "l02184" > < / a > < span class = "lineno" > 2184< / span >   < span class = "comment" > // since this is called at each iteration (because of the bound-flipping ratio< / span > < / div >
< div class = "line" > < a name = "l02185" > < / a > < span class = "lineno" > 2185< / span >   < span class = "comment" > // test).< / span > < / div >
< div class = "line" > < a name = "l02186" > < / a > < span class = "lineno" > 2186< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & variable_values = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > GetDenseRow< / a > ();< / div >
< div class = "line" > < a name = "l02187" > < / a > < span class = "lineno" > 2187< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & reduced_costs = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l02188" > < / a > < span class = "lineno" > 2188< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > dual_feasibility_tolerance =< / div >
< div class = "line" > < a name = "l02189" > < / a > < span class = "lineno" > 2189< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa6a9551b792028d16dc7123c80f429d1" > GetDualFeasibilityTolerance< / a > ();< / div >
< div class = "line" > < a name = "l02190" > < / a > < span class = "lineno" > 2190< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a6d0540e510c4225b196d87b16f2721a8" > VariableStatusRow< / a > & variable_status = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ();< / div >
< div class = "line" > < a name = "l02191" > < / a > < span class = "lineno" > 2191< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : cols) {< / div >
< div class = "line" > < a name = "l02192" > < / a > < span class = "lineno" > 2192< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost = reduced_costs[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02193" > < / a > < span class = "lineno" > 2193< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status = variable_status[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02194" > < / a > < span class = "lineno" > 2194< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ==< / div >
< div class = "line" > < a name = "l02195" > < / a > < span class = "lineno" > 2195< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa62e32b9a6efb029208f576ee123b459f" > VariableType::UPPER_AND_LOWER_BOUNDED< / a > );< / div >
< div class = "line" > < a name = "l02196" > < / a > < span class = "lineno" > 2196< / span >   < span class = "comment" > // TODO(user): refactor this as DCHECK(IsVariableBasicOrExactlyAtBound())?< / span > < / div >
< div class = "line" > < a name = "l02197" > < / a > < span class = "lineno" > 2197< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ||< / div >
< div class = "line" > < a name = "l02198" > < / a > < span class = "lineno" > 2198< / span >   variable_values[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] ||< / div >
< div class = "line" > < a name = "l02199" > < / a > < span class = "lineno" > 2199< / span >   status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > );< / div >
< div class = "line" > < a name = "l02200" > < / a > < span class = "lineno" > 2200< / span >   < span class = "keywordflow" > if< / span > (reduced_cost > dual_feasibility_tolerance & & < / div >
< div class = "line" > < a name = "l02201" > < / a > < span class = "lineno" > 2201< / span >   status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02202" > < / a > < span class = "lineno" > 2202< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ae636e3fb39ec1660660286628306cd15" > Update< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l02203" > < / a > < span class = "lineno" > 2203< / span >   changed_cols.push_back(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02204" > < / a > < span class = "lineno" > 2204< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (reduced_cost < -dual_feasibility_tolerance & & < / div >
< div class = "line" > < a name = "l02205" > < / a > < span class = "lineno" > 2205< / span >   status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02206" > < / a > < span class = "lineno" > 2206< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ae636e3fb39ec1660660286628306cd15" > Update< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l02207" > < / a > < span class = "lineno" > 2207< / span >   changed_cols.push_back(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02208" > < / a > < span class = "lineno" > 2208< / span >   }< / div >
< div class = "line" > < a name = "l02209" > < / a > < span class = "lineno" > 2209< / span >   }< / div >
< div class = "line" > < a name = "l02210" > < / a > < span class = "lineno" > 2210< / span >   < / div >
< div class = "line" > < a name = "l02211" > < / a > < span class = "lineno" > 2211< / span >   < span class = "keywordflow" > if< / span > (!changed_cols.empty()) {< / div >
< div class = "line" > < a name = "l02212" > < / a > < span class = "lineno" > 2212< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a37d6b382d73531413bce6b5d63e624e9" > UpdateGivenNonBasicVariables< / a > (changed_cols,< / div >
< div class = "line" > < a name = "l02213" > < / a > < span class = "lineno" > 2213< / span >   update_basic_values);< / div >
< div class = "line" > < a name = "l02214" > < / a > < span class = "lineno" > 2214< / span >   }< / div >
< div class = "line" > < a name = "l02215" > < / a > < span class = "lineno" > 2215< / span >   }< / div >
< div class = "line" > < a name = "l02216" > < / a > < span class = "lineno" > 2216< / span >   < / div >
< div class = "line" > < a name = "l02217" > < / a > < span class = "lineno" > 2217< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > RevisedSimplex::ComputeStepToMoveBasicVariableToBound(< / div >
< div class = "line" > < a name = "l02218" > < / a > < span class = "lineno" > 2218< / span >   RowIndex leaving_row, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l02219" > < / a > < span class = "lineno" > 2219< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02220" > < / a > < span class = "lineno" > 2220< / span >   < / div >
< div class = "line" > < a name = "l02221" > < / a > < span class = "lineno" > 2221< / span >   < span class = "comment" > // We just want the leaving variable to go to its target_bound.< / span > < / div >
< div class = "line" > < a name = "l02222" > < / a > < span class = "lineno" > 2222< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[leaving_row];< / div >
< div class = "line" > < a name = "l02223" > < / a > < span class = "lineno" > 2223< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > leaving_variable_value = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col);< / div >
< div class = "line" > < a name = "l02224" > < / a > < span class = "lineno" > 2224< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > unscaled_step = leaving_variable_value - < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ;< / div >
< div class = "line" > < a name = "l02225" > < / a > < span class = "lineno" > 2225< / span >   < / div >
< div class = "line" > < a name = "l02226" > < / a > < span class = "lineno" > 2226< / span >   < span class = "comment" > // In Chvatal p 157 update_[entering_col] is used instead of< / span > < / div >
< div class = "line" > < a name = "l02227" > < / a > < span class = "lineno" > 2227< / span >   < span class = "comment" > // direction_[leaving_row], but the two quantities are actually the< / span > < / div >
< div class = "line" > < a name = "l02228" > < / a > < span class = "lineno" > 2228< / span >   < span class = "comment" > // same. This is because update_[col] is the value at leaving_row of< / span > < / div >
< div class = "line" > < a name = "l02229" > < / a > < span class = "lineno" > 2229< / span >   < span class = "comment" > // the right inverse of col and direction_ is the right inverse of the< / span > < / div >
< div class = "line" > < a name = "l02230" > < / a > < span class = "lineno" > 2230< / span >   < span class = "comment" > // entering_col. Note that direction_[leaving_row] is probably more< / span > < / div >
< div class = "line" > < a name = "l02231" > < / a > < span class = "lineno" > 2231< / span >   < span class = "comment" > // precise.< / span > < / div >
< div class = "line" > < a name = "l02232" > < / a > < span class = "lineno" > 2232< / span >   < span class = "comment" > // TODO(user): use this to check precision and trigger recomputation.< / span > < / div >
< div class = "line" > < a name = "l02233" > < / a > < span class = "lineno" > 2233< / span >   < span class = "keywordflow" > return< / span > unscaled_step / direction_[leaving_row];< / div >
< div class = "line" > < a name = "l02234" > < / a > < span class = "lineno" > 2234< / span >   }< / div >
< div class = "line" > < a name = "l02235" > < / a > < span class = "lineno" > 2235< / span >   < / div >
< div class = "line" > < a name = "l02236" > < / a > < span class = "lineno" > 2236< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::TestPivot(ColIndex entering_col, RowIndex leaving_row) {< / div >
< div class = "line" > < a name = "l02237" > < / a > < span class = "lineno" > 2237< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Test pivot." < / span > ;< / div >
< div class = "line" > < a name = "l02238" > < / a > < span class = "lineno" > 2238< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02239" > < / a > < span class = "lineno" > 2239< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[leaving_row];< / div >
< div class = "line" > < a name = "l02240" > < / a > < span class = "lineno" > 2240< / span >   basis_[leaving_row] = entering_col;< / div >
< div class = "line" > < a name = "l02241" > < / a > < span class = "lineno" > 2241< / span >   < / div >
< div class = "line" > < a name = "l02242" > < / a > < span class = "lineno" > 2242< / span >   < span class = "comment" > // TODO(user): If ' is_ok' is true, we could use the computed lu in< / span > < / div >
< div class = "line" > < a name = "l02243" > < / a > < span class = "lineno" > 2243< / span >   < span class = "comment" > // basis_factorization_ rather than recompute it during UpdateAndPivot().< / span > < / div >
< div class = "line" > < a name = "l02244" > < / a > < span class = "lineno" > 2244< / span >   CompactSparseMatrixView basis_matrix(& compact_matrix_, & basis_);< / div >
< div class = "line" > < a name = "l02245" > < / a > < span class = "lineno" > 2245< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_ok = test_lu_.< a class = "code" href = "classoperations__research_1_1glop_1_1_lu_factorization.html#ace58a4f9d6a147c3455ff8dc029537c4" > ComputeFactorization< / a > (basis_matrix).< a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a03cb7eaa663dc83af68bc28a596d09e6" > ok< / a > ();< / div >
< div class = "line" > < a name = "l02246" > < / a > < span class = "lineno" > 2246< / span >   basis_[leaving_row] = leaving_col;< / div >
< div class = "line" > < a name = "l02247" > < / a > < span class = "lineno" > 2247< / span >   < span class = "keywordflow" > return< / span > is_ok;< / div >
< div class = "line" > < a name = "l02248" > < / a > < span class = "lineno" > 2248< / span >   }< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02249" > < / a > < span class = "lineno" > 2249< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02250" > < / a > < span class = "lineno" > 2250< / span >   < span class = "comment" > // Note that this function is an optimization and that if it was doing nothing< / span > < / div >
< div class = "line" > < a name = "l02251" > < / a > < span class = "lineno" > 2251< / span >   < span class = "comment" > // the algorithm will still be correct and work. Using it does change the pivot< / span > < / div >
< div class = "line" > < a name = "l02252" > < / a > < span class = "lineno" > 2252< / span >   < span class = "comment" > // taken during the simplex method though.< / span > < / div >
< div class = "line" > < a name = "l02253" > < / a > < span class = "lineno" > 2253< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::PermuteBasis() {< / div >
< div class = "line" > < a name = "l02254" > < / a > < span class = "lineno" > 2254< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02255" > < / a > < span class = "lineno" > 2255< / span >   < / div >
< div class = "line" > < a name = "l02256" > < / a > < span class = "lineno" > 2256< / span >   < span class = "comment" > // Fetch the current basis column permutation and return if it is empty which< / span > < / div >
< div class = "line" > < a name = "l02257" > < / a > < span class = "lineno" > 2257< / span >   < span class = "comment" > // means the permutation is the identity.< / span > < / div >
< div class = "line" > < a name = "l02258" > < / a > < span class = "lineno" > 2258< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a6b1b56ad0cb77edbd314f2bec33b467a" > ColumnPermutation< / a > & col_perm =< / div >
< div class = "line" > < a name = "l02259" > < / a > < span class = "lineno" > 2259< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a56d08f5289eea3f018dca5b93b6fca6b" > GetColumnPermutation< / a > ();< / div >
< div class = "line" > < a name = "l02260" > < / a > < span class = "lineno" > 2260< / span >   < span class = "keywordflow" > if< / span > (col_perm.empty()) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02261" > < / a > < span class = "lineno" > 2261< / span >   < / div >
< div class = "line" > < a name = "l02262" > < / a > < span class = "lineno" > 2262< / span >   < span class = "comment" > // Permute basis_.< / span > < / div >
< div class = "line" > < a name = "l02263" > < / a > < span class = "lineno" > 2263< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae436c0f61edb4f16608010c8bd75a1da" > ApplyColumnPermutationToRowIndexedVector< / a > (col_perm, & basis_);< / div >
< div class = "line" > < a name = "l02264" > < / a > < span class = "lineno" > 2264< / span >   < / div >
< div class = "line" > < a name = "l02265" > < / a > < span class = "lineno" > 2265< / span >   < span class = "comment" > // Permute dual_pricing_vector_ if needed.< / span > < / div >
< div class = "line" > < a name = "l02266" > < / a > < span class = "lineno" > 2266< / span >   < span class = "keywordflow" > if< / span > (!dual_pricing_vector_.< a class = "code" href = "classabsl_1_1_strong_vector.html#a644718bb2fb240de962dc3c9a1fdf0dc" > empty< / a > ()) {< / div >
< div class = "line" > < a name = "l02267" > < / a > < span class = "lineno" > 2267< / span >   < span class = "comment" > // TODO(user): We need to permute is_dual_entering_candidate_ too. Right< / span > < / div >
< div class = "line" > < a name = "l02268" > < / a > < span class = "lineno" > 2268< / span >   < span class = "comment" > // now, we recompute both the dual_pricing_vector_ and< / span > < / div >
< div class = "line" > < a name = "l02269" > < / a > < span class = "lineno" > 2269< / span >   < span class = "comment" > // is_dual_entering_candidate_ on each refactorization, so this don' t< / span > < / div >
< div class = "line" > < a name = "l02270" > < / a > < span class = "lineno" > 2270< / span >   < span class = "comment" > // matter.< / span > < / div >
< div class = "line" > < a name = "l02271" > < / a > < span class = "lineno" > 2271< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae436c0f61edb4f16608010c8bd75a1da" > ApplyColumnPermutationToRowIndexedVector< / a > (col_perm, & dual_pricing_vector_);< / div >
< div class = "line" > < a name = "l02272" > < / a > < span class = "lineno" > 2272< / span >   }< / div >
< div class = "line" > < a name = "l02273" > < / a > < span class = "lineno" > 2273< / span >   < / div >
< div class = "line" > < a name = "l02274" > < / a > < span class = "lineno" > 2274< / span >   < span class = "comment" > // Notify the other classes.< / span > < / div >
< div class = "line" > < a name = "l02275" > < / a > < span class = "lineno" > 2275< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ac51f5d5ea0bb75f2f55e836527c43f58" > UpdateDataOnBasisPermutation< / a > ();< / div >
< div class = "line" > < a name = "l02276" > < / a > < span class = "lineno" > 2276< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a0c2c64e7a26487661db464cb20d4ddfe" > UpdateDataOnBasisPermutation< / a > (col_perm);< / div >
< div class = "line" > < a name = "l02277" > < / a > < span class = "lineno" > 2277< / span >   < / div >
< div class = "line" > < a name = "l02278" > < / a > < span class = "lineno" > 2278< / span >   < span class = "comment" > // Finally, remove the column permutation from all subsequent solves since< / span > < / div >
< div class = "line" > < a name = "l02279" > < / a > < span class = "lineno" > 2279< / span >   < span class = "comment" > // it has been taken into account in basis_.< / span > < / div >
< div class = "line" > < a name = "l02280" > < / a > < span class = "lineno" > 2280< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#ad91a397910de30b87b9fb45298fa5c58" > SetColumnPermutationToIdentity< / a > ();< / div >
< div class = "line" > < a name = "l02281" > < / a > < span class = "lineno" > 2281< / span >   }< / div >
< div class = "line" > < a name = "l02282" > < / a > < span class = "lineno" > 2282< / span >   < / div >
< div class = "line" > < a name = "l02283" > < / a > < span class = "lineno" > 2283< / span >   Status RevisedSimplex::UpdateAndPivot(ColIndex entering_col,< / div >
< div class = "line" > < a name = "l02284" > < / a > < span class = "lineno" > 2284< / span >   RowIndex leaving_row,< / div >
< div class = "line" > < a name = "l02285" > < / a > < span class = "lineno" > 2285< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l02286" > < / a > < span class = "lineno" > 2286< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02287" > < / a > < span class = "lineno" > 2287< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[leaving_row];< / div >
< div class = "line" > < a name = "l02288" > < / a > < span class = "lineno" > 2288< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > leaving_variable_status =< / div >
< div class = "line" > < a name = "l02289" > < / a > < span class = "lineno" > 2289< / span >   lower_bound_[leaving_col] == upper_bound_[leaving_col]< / div >
< div class = "line" > < a name = "l02290" > < / a > < span class = "lineno" > 2290< / span >   ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > < / div >
< div class = "line" > < a name = "l02291" > < / a > < span class = "lineno" > 2291< / span >   : < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > == lower_bound_[leaving_col]< / div >
< div class = "line" > < a name = "l02292" > < / a > < span class = "lineno" > 2292< / span >   ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l02293" > < / a > < span class = "lineno" > 2293< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02294" > < / a > < span class = "lineno" > 2294< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col) != < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l02295" > < / a > < span class = "lineno" > 2295< / span >   ratio_test_stats_.bound_shift.Add(variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col) -< / div >
< div class = "line" > < a name = "l02296" > < / a > < span class = "lineno" > 2296< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02297" > < / a > < span class = "lineno" > 2297< / span >   }< / div >
< div class = "line" > < a name = "l02298" > < / a > < span class = "lineno" > 2298< / span >   UpdateBasis(entering_col, leaving_row, leaving_variable_status);< / div >
< div class = "line" > < a name = "l02299" > < / a > < span class = "lineno" > 2299< / span >   < / div >
< div class = "line" > < a name = "l02300" > < / a > < span class = "lineno" > 2300< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > pivot_from_direction = direction_[leaving_row];< / div >
< div class = "line" > < a name = "l02301" > < / a > < span class = "lineno" > 2301< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > pivot_from_update_row =< / div >
< div class = "line" > < a name = "l02302" > < / a > < span class = "lineno" > 2302< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#abd6d81960f38fe1a69a153b03e60d47e" > GetCoefficient< / a > (entering_col);< / div >
< div class = "line" > < a name = "l02303" > < / a > < span class = "lineno" > 2303< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > diff =< / div >
< div class = "line" > < a name = "l02304" > < / a > < span class = "lineno" > 2304< / span >   std::abs(pivot_from_update_row - pivot_from_direction);< / div >
< div class = "line" > < a name = "l02305" > < / a > < span class = "lineno" > 2305< / span >   < span class = "keywordflow" > if< / span > (diff > parameters_.refactorization_threshold() *< / div >
< div class = "line" > < a name = "l02306" > < / a > < span class = "lineno" > 2306< / span >   (1 + std::abs(pivot_from_direction))) {< / div >
< div class = "line" > < a name = "l02307" > < / a > < span class = "lineno" > 2307< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Refactorizing: imprecise pivot " < / span > < < pivot_from_direction< / div >
< div class = "line" > < a name = "l02308" > < / a > < span class = "lineno" > 2308< / span >   < < < span class = "stringliteral" > " diff = " < / span > < < diff;< / div >
< div class = "line" > < a name = "l02309" > < / a > < span class = "lineno" > 2309< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aedf255db8741ebb2011757ff37dfc02e" > ForceRefactorization< / a > ());< / div >
< div class = "line" > < a name = "l02310" > < / a > < span class = "lineno" > 2310< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02311" > < / a > < span class = "lineno" > 2311< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l02312" > < / a > < span class = "lineno" > 2312< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a87e6110ce2612a27f85e9036afef1599" > Update< / a > (entering_col, leaving_row, direction_));< / div >
< div class = "line" > < a name = "l02313" > < / a > < span class = "lineno" > 2313< / span >   }< / div >
< div class = "line" > < a name = "l02314" > < / a > < span class = "lineno" > 2314< / span >   < span class = "keywordflow" > if< / span > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l02315" > < / a > < span class = "lineno" > 2315< / span >   PermuteBasis();< / div >
< div class = "line" > < a name = "l02316" > < / a > < span class = "lineno" > 2316< / span >   }< / div >
< div class = "line" > < a name = "l02317" > < / a > < span class = "lineno" > 2317< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02318" > < / a > < span class = "lineno" > 2318< / span >   }< / div >
< div class = "line" > < a name = "l02319" > < / a > < span class = "lineno" > 2319< / span >   < / div >
< div class = "line" > < a name = "l02320" > < / a > < span class = "lineno" > 2320< / span >   < span class = "keywordtype" > bool< / span > RevisedSimplex::NeedsBasisRefactorization(< span class = "keywordtype" > bool< / span > refactorize) {< / div >
< div class = "line" > < a name = "l02321" > < / a > < span class = "lineno" > 2321< / span >   < span class = "keywordflow" > if< / span > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02322" > < / a > < span class = "lineno" > 2322< / span >   < span class = "keywordflow" > if< / span > (reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#af507437729fd1e93677772e748ca1cfc" > NeedsBasisRefactorization< / a > ()) < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02323" > < / a > < span class = "lineno" > 2323< / span >   < span class = "keyword" > const< / span > GlopParameters::PricingRule pricing_rule =< / div >
< div class = "line" > < a name = "l02324" > < / a > < span class = "lineno" > 2324< / span >   feasibility_phase_ ? parameters_.feasibility_rule()< / div >
< div class = "line" > < a name = "l02325" > < / a > < span class = "lineno" > 2325< / span >   : parameters_.optimization_rule();< / div >
< div class = "line" > < a name = "l02326" > < / a > < span class = "lineno" > 2326< / span >   < span class = "keywordflow" > if< / span > (parameters_.use_dual_simplex()) {< / div >
< div class = "line" > < a name = "l02327" > < / a > < span class = "lineno" > 2327< / span >   < span class = "comment" > // TODO(user): Currently the dual is always using STEEPEST_EDGE.< / span > < / div >
< div class = "line" > < a name = "l02328" > < / a > < span class = "lineno" > 2328< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (pricing_rule, GlopParameters::STEEPEST_EDGE);< / div >
< div class = "line" > < a name = "l02329" > < / a > < span class = "lineno" > 2329< / span >   < span class = "keywordflow" > if< / span > (dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a58d6aa7af2dcdd2a53c98c0f0cef0502" > NeedsBasisRefactorization< / a > ()) < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02330" > < / a > < span class = "lineno" > 2330< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02331" > < / a > < span class = "lineno" > 2331< / span >   < span class = "keywordflow" > if< / span > (pricing_rule == GlopParameters::STEEPEST_EDGE & & < / div >
< div class = "line" > < a name = "l02332" > < / a > < span class = "lineno" > 2332< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#af507437729fd1e93677772e748ca1cfc" > NeedsBasisRefactorization< / a > ()) {< / div >
< div class = "line" > < a name = "l02333" > < / a > < span class = "lineno" > 2333< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02334" > < / a > < span class = "lineno" > 2334< / span >   }< / div >
< div class = "line" > < a name = "l02335" > < / a > < span class = "lineno" > 2335< / span >   }< / div >
< div class = "line" > < a name = "l02336" > < / a > < span class = "lineno" > 2336< / span >   < span class = "keywordflow" > return< / span > refactorize;< / div >
< div class = "line" > < a name = "l02337" > < / a > < span class = "lineno" > 2337< / span >   }< / div >
< div class = "line" > < a name = "l02338" > < / a > < span class = "lineno" > 2338< / span >   < / div >
< div class = "line" > < a name = "l02339" > < / a > < span class = "lineno" > 2339< / span >   Status RevisedSimplex::RefactorizeBasisIfNeeded(< span class = "keywordtype" > bool< / span > * refactorize) {< / div >
< div class = "line" > < a name = "l02340" > < / a > < span class = "lineno" > 2340< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l02341" > < / a > < span class = "lineno" > 2341< / span >   < span class = "keywordflow" > if< / span > (NeedsBasisRefactorization(*refactorize)) {< / div >
< div class = "line" > < a name = "l02342" > < / a > < span class = "lineno" > 2342< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a39b7e347f32f4024a988cb93f5e81a2d" > Refactorize< / a > ());< / div >
< div class = "line" > < a name = "l02343" > < / a > < span class = "lineno" > 2343< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#ab9adfea0e765ab447b8ce7730a6cd812" > Invalidate< / a > ();< / div >
< div class = "line" > < a name = "l02344" > < / a > < span class = "lineno" > 2344< / span >   PermuteBasis();< / div >
< div class = "line" > < a name = "l02345" > < / a > < span class = "lineno" > 2345< / span >   }< / div >
< div class = "line" > < a name = "l02346" > < / a > < span class = "lineno" > 2346< / span >   *refactorize = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02347" > < / a > < span class = "lineno" > 2347< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02348" > < / a > < span class = "lineno" > 2348< / span >   }< / div >
< div class = "line" > < a name = "l02349" > < / a > < span class = "lineno" > 2349< / span >   < / div >
< div class = "line" > < a name = "l02350" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a2638e7353203c8cb214228147a5e504a" > 2350< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a2638e7353203c8cb214228147a5e504a" > RevisedSimplex::SetIntegralityScale< / a > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > scale) {< / div >
< div class = "line" > < a name = "l02351" > < / a > < span class = "lineno" > 2351< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > > = integrality_scale_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()) {< / div >
< div class = "line" > < a name = "l02352" > < / a > < span class = "lineno" > 2352< / span >   integrality_scale_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > + 1, 0.0);< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02353" > < / a > < span class = "lineno" > 2353< / span >   }< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02354" > < / a > < span class = "lineno" > 2354< / span >   integrality_scale_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = scale;< / div >
< div class = "line" > < a name = "l02355" > < / a > < span class = "lineno" > 2355< / span >   }< / div >
< div class = "line" > < a name = "l02356" > < / a > < span class = "lineno" > 2356< / span >   < / div >
< div class = "line" > < a name = "l02357" > < / a > < span class = "lineno" > 2357< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html" > Status< / a > RevisedSimplex::Polish(< a class = "code" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ) {< / div >
< div class = "line" > < a name = "l02358" > < / a > < span class = "lineno" > 2358< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l02359" > < / a > < span class = "lineno" > 2359< / span >   Cleanup update_deterministic_time_on_return(< / div >
< div class = "line" > < a name = "l02360" > < / a > < span class = "lineno" > 2360< / span >   [< span class = "keyword" > this< / span > , < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ]() { AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ); });< / div >
< div class = "line" > < a name = "l02361" > < / a > < span class = "lineno" > 2361< / span >   < / div >
< div class = "line" > < a name = "l02362" > < / a > < span class = "lineno" > 2362< / span >   < span class = "comment" > // Get all non-basic variables with a reduced costs close to zero.< / span > < / div >
< div class = "line" > < a name = "l02363" > < / a > < span class = "lineno" > 2363< / span >   < span class = "comment" > // Note that because we only choose entering candidate with a cost of zero,< / span > < / div >
< div class = "line" > < a name = "l02364" > < / a > < span class = "lineno" > 2364< / span >   < span class = "comment" > // this set will not change (modulo epsilons).< / span > < / div >
< div class = "line" > < a name = "l02365" > < / a > < span class = "lineno" > 2365< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & rc = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l02366" > < / a > < span class = "lineno" > 2366< / span >   std::vector< ColIndex> candidates;< / div >
< div class = "line" > < a name = "l02367" > < / a > < span class = "lineno" > 2367< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a8e726c118c4449d9d3c5761e2853661a" > GetNotBasicBitRow< / a > ()) {< / div >
< div class = "line" > < a name = "l02368" > < / a > < span class = "lineno" > 2368< / span >   < span class = "keywordflow" > if< / span > (!variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ac4385751c629a96a6d1ef5ac70af45e1" > GetIsRelevantBitRow< / a > ()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02369" > < / a > < span class = "lineno" > 2369< / span >   < span class = "keywordflow" > if< / span > (std::abs(rc[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < 1e-9) candidates.< a class = "code" href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02370" > < / a > < span class = "lineno" > 2370< / span >   }< / div >
< div class = "line" > < a name = "l02371" > < / a > < span class = "lineno" > 2371< / span >   < / div >
< div class = "line" > < a name = "l02372" > < / a > < span class = "lineno" > 2372< / span >   < span class = "keywordtype" > bool< / span > refactorize = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02373" > < / a > < span class = "lineno" > 2373< / span >   < span class = "keywordtype" > int< / span > num_pivots = 0;< / div >
< div class = "line" > < a name = "l02374" > < / a > < span class = "lineno" > 2374< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > total_gain = 0.0;< / div >
< div class = "line" > < a name = "l02375" > < / a > < span class = "lineno" > 2375< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < 10; ++i) {< / div >
< div class = "line" > < a name = "l02376" > < / a > < span class = "lineno" > 2376< / span >   AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l02377" > < / a > < span class = "lineno" > 2377< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> LimitReached()) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02378" > < / a > < span class = "lineno" > 2378< / span >   < span class = "keywordflow" > if< / span > (num_pivots > = 5) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02379" > < / a > < span class = "lineno" > 2379< / span >   < span class = "keywordflow" > if< / span > (candidates.empty()) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02380" > < / a > < span class = "lineno" > 2380< / span >   < / div >
< div class = "line" > < a name = "l02381" > < / a > < span class = "lineno" > 2381< / span >   < span class = "comment" > // Pick a random one and remove it from the list.< / span > < / div >
< div class = "line" > < a name = "l02382" > < / a > < span class = "lineno" > 2382< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > < a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > =< / div >
< div class = "line" > < a name = "l02383" > < / a > < span class = "lineno" > 2383< / span >   std::uniform_int_distribution< int> (0, candidates.size() - 1)(random_);< / div >
< div class = "line" > < a name = "l02384" > < / a > < span class = "lineno" > 2384< / span >   < span class = "keyword" > const< / span > ColIndex entering_col = candidates[< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ];< / div >
< div class = "line" > < a name = "l02385" > < / a > < span class = "lineno" > 2385< / span >   std::swap(candidates[< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ], candidates.back());< / div >
< div class = "line" > < a name = "l02386" > < / a > < span class = "lineno" > 2386< / span >   candidates.pop_back();< / div >
< div class = "line" > < a name = "l02387" > < / a > < span class = "lineno" > 2387< / span >   < / div >
< div class = "line" > < a name = "l02388" > < / a > < span class = "lineno" > 2388< / span >   < span class = "comment" > // We need the entering variable to move in the correct direction.< / span > < / div >
< div class = "line" > < a name = "l02389" > < / a > < span class = "lineno" > 2389< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > fake_rc = 1.0;< / div >
< div class = "line" > < a name = "l02390" > < / a > < span class = "lineno" > 2390< / span >   < span class = "keywordflow" > if< / span > (!variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a71d4734d51e7037c043b68a74bd7857f" > GetCanDecreaseBitRow< / a > ()[entering_col]) {< / div >
< div class = "line" > < a name = "l02391" > < / a > < span class = "lineno" > 2391< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a6cc56ab5da3a82aa2793d18a37f422c4" > GetCanIncreaseBitRow< / a > ()[entering_col]);< / div >
< div class = "line" > < a name = "l02392" > < / a > < span class = "lineno" > 2392< / span >   fake_rc = -1.0;< / div >
< div class = "line" > < a name = "l02393" > < / a > < span class = "lineno" > 2393< / span >   }< / div >
< div class = "line" > < a name = "l02394" > < / a > < span class = "lineno" > 2394< / span >   < / div >
< div class = "line" > < a name = "l02395" > < / a > < span class = "lineno" > 2395< / span >   < span class = "comment" > // Compute the direction and by how much we can move along it.< / span > < / div >
< div class = "line" > < a name = "l02396" > < / a > < span class = "lineno" > 2396< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (RefactorizeBasisIfNeeded(& refactorize));< / div >
< div class = "line" > < a name = "l02397" > < / a > < span class = "lineno" > 2397< / span >   ComputeDirection(entering_col);< / div >
< div class = "line" > < a name = "l02398" > < / a > < span class = "lineno" > 2398< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > step_length;< / div >
< div class = "line" > < a name = "l02399" > < / a > < span class = "lineno" > 2399< / span >   RowIndex leaving_row;< / div >
< div class = "line" > < a name = "l02400" > < / a > < span class = "lineno" > 2400< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ;< / div >
< div class = "line" > < a name = "l02401" > < / a > < span class = "lineno" > 2401< / span >   < span class = "keywordtype" > bool< / span > local_refactorize = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02402" > < / a > < span class = "lineno" > 2402< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l02403" > < / a > < span class = "lineno" > 2403< / span >   ChooseLeavingVariableRow(entering_col, fake_rc, & local_refactorize,< / div >
< div class = "line" > < a name = "l02404" > < / a > < span class = "lineno" > 2404< / span >   & leaving_row, & step_length, & < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02405" > < / a > < span class = "lineno" > 2405< / span >   < / div >
< div class = "line" > < a name = "l02406" > < / a > < span class = "lineno" > 2406< / span >   < span class = "keywordflow" > if< / span > (local_refactorize) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02407" > < / a > < span class = "lineno" > 2407< / span >   < span class = "keywordflow" > if< / span > (step_length == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > || step_length == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02408" > < / a > < span class = "lineno" > 2408< / span >   < span class = "keywordflow" > if< / span > (std::abs(step_length) < = 1e-6) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02409" > < / a > < span class = "lineno" > 2409< / span >   < span class = "keywordflow" > if< / span > (leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > & & std::abs(direction_[leaving_row]) < 0.1) {< / div >
< div class = "line" > < a name = "l02410" > < / a > < span class = "lineno" > 2410< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02411" > < / a > < span class = "lineno" > 2411< / span >   }< / div >
< div class = "line" > < a name = "l02412" > < / a > < span class = "lineno" > 2412< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > step = (fake_rc > 0.0) ? -step_length : step_length;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02413" > < / a > < span class = "lineno" > 2413< / span >   < / div >
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< div class = "line" > < a name = "l02414" > < / a > < span class = "lineno" > 2414< / span >   < span class = "comment" > // Evaluate if pivot reduce the fractionality of the basis.< / span > < / div >
< div class = "line" > < a name = "l02415" > < / a > < span class = "lineno" > 2415< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02416" > < / a > < span class = "lineno" > 2416< / span >   < span class = "comment" > // TODO(user): Count with more weight variable with a small domain, i.e.< / span > < / div >
< div class = "line" > < a name = "l02417" > < / a > < span class = "lineno" > 2417< / span >   < span class = "comment" > // binary variable, compared to a variable in [0, 1k] ?< / span > < / div >
< div class = "line" > < a name = "l02418" > < / a > < span class = "lineno" > 2418< / span >   < span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > get_diff = [< span class = "keyword" > this< / span > ](ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > old_value,< / div >
< div class = "line" > < a name = "l02419" > < / a > < span class = "lineno" > 2419< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_value) {< / div >
< div class = "line" > < a name = "l02420" > < / a > < span class = "lineno" > 2420< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > > = integrality_scale_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > () || integrality_scale_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == 0.0) {< / div >
< div class = "line" > < a name = "l02421" > < / a > < span class = "lineno" > 2421< / span >   < span class = "keywordflow" > return< / span > 0.0;< / div >
< div class = "line" > < a name = "l02422" > < / a > < span class = "lineno" > 2422< / span >   }< / div >
< div class = "line" > < a name = "l02423" > < / a > < span class = "lineno" > 2423< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > s = integrality_scale_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02424" > < / a > < span class = "lineno" > 2424< / span >   < span class = "keywordflow" > return< / span > (std::abs(new_value * s - std::round(new_value * s)) -< / div >
< div class = "line" > < a name = "l02425" > < / a > < span class = "lineno" > 2425< / span >   std::abs(old_value * s - std::round(old_value * s)));< / div >
< div class = "line" > < a name = "l02426" > < / a > < span class = "lineno" > 2426< / span >   };< / div >
< div class = "line" > < a name = "l02427" > < / a > < span class = "lineno" > 2427< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > diff = get_diff(entering_col, variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (entering_col),< / div >
< div class = "line" > < a name = "l02428" > < / a > < span class = "lineno" > 2428< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (entering_col) + step);< / div >
< div class = "line" > < a name = "l02429" > < / a > < span class = "lineno" > 2429< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l02430" > < / a > < span class = "lineno" > 2430< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis_[e.row()];< / div >
< div class = "line" > < a name = "l02431" > < / a > < span class = "lineno" > 2431< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > old_value = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02432" > < / a > < span class = "lineno" > 2432< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_value = old_value - e.coefficient() * step;< / div >
< div class = "line" > < a name = "l02433" > < / a > < span class = "lineno" > 2433< / span >   diff += get_diff(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , old_value, new_value);< / div >
< div class = "line" > < a name = "l02434" > < / a > < span class = "lineno" > 2434< / span >   }< / div >
< div class = "line" > < a name = "l02435" > < / a > < span class = "lineno" > 2435< / span >   < / div >
< div class = "line" > < a name = "l02436" > < / a > < span class = "lineno" > 2436< / span >   < span class = "comment" > // Ignore low decrease in integrality.< / span > < / div >
< div class = "line" > < a name = "l02437" > < / a > < span class = "lineno" > 2437< / span >   < span class = "keywordflow" > if< / span > (diff > -1e-2) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02438" > < / a > < span class = "lineno" > 2438< / span >   total_gain -= diff;< / div >
< div class = "line" > < a name = "l02439" > < / a > < span class = "lineno" > 2439< / span >   < / div >
< div class = "line" > < a name = "l02440" > < / a > < span class = "lineno" > 2440< / span >   < span class = "comment" > // We perform the change.< / span > < / div >
< div class = "line" > < a name = "l02441" > < / a > < span class = "lineno" > 2441< / span >   num_pivots++;< / div >
< div class = "line" > < a name = "l02442" > < / a > < span class = "lineno" > 2442< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a9808cfe964d67616b5775b0ab113b7aa" > UpdateOnPivoting< / a > (direction_, entering_col, step);< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02443" > < / a > < span class = "lineno" > 2443< / span >   < / div >
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< div class = "line" > < a name = "l02444" > < / a > < span class = "lineno" > 2444< / span >   < span class = "comment" > // This is a bound flip of the entering column.< / span > < / div >
< div class = "line" > < a name = "l02445" > < / a > < span class = "lineno" > 2445< / span >   < span class = "keywordflow" > if< / span > (leaving_row == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l02446" > < / a > < span class = "lineno" > 2446< / span >   < span class = "keywordflow" > if< / span > (step > 0.0) {< / div >
< div class = "line" > < a name = "l02447" > < / a > < span class = "lineno" > 2447< / span >   SetNonBasicVariableStatusAndDeriveValue(entering_col,< / div >
< div class = "line" > < a name = "l02448" > < / a > < span class = "lineno" > 2448< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l02449" > < / a > < span class = "lineno" > 2449< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (step < 0.0) {< / div >
< div class = "line" > < a name = "l02450" > < / a > < span class = "lineno" > 2450< / span >   SetNonBasicVariableStatusAndDeriveValue(entering_col,< / div >
< div class = "line" > < a name = "l02451" > < / a > < span class = "lineno" > 2451< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l02452" > < / a > < span class = "lineno" > 2452< / span >   }< / div >
< div class = "line" > < a name = "l02453" > < / a > < span class = "lineno" > 2453< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a74fea3dc78cd1ea3532f9959c4abfceb" > SetAndDebugCheckThatColumnIsDualFeasible< / a > (entering_col);< / div >
< div class = "line" > < a name = "l02454" > < / a > < span class = "lineno" > 2454< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02455" > < / a > < span class = "lineno" > 2455< / span >   }< / div >
< div class = "line" > < a name = "l02456" > < / a > < span class = "lineno" > 2456< / span >   < / div >
< div class = "line" > < a name = "l02457" > < / a > < span class = "lineno" > 2457< / span >   < span class = "comment" > // Perform the pivot.< / span > < / div >
< div class = "line" > < a name = "l02458" > < / a > < span class = "lineno" > 2458< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[leaving_row];< / div >
< div class = "line" > < a name = "l02459" > < / a > < span class = "lineno" > 2459< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#ac9f13d2561598d3a04b409dd7b4e1f0c" > ComputeUpdateRow< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l02460" > < / a > < span class = "lineno" > 2460< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ac770d9d78b0dda3be3bacb43038170e0" > UpdateBeforeBasisPivot< / a > (< / div >
< div class = "line" > < a name = "l02461" > < / a > < span class = "lineno" > 2461< / span >   entering_col, leaving_col, leaving_row, direction_, & update_row_);< / div >
< div class = "line" > < a name = "l02462" > < / a > < span class = "lineno" > 2462< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9a45fa5802a8fec70bec2fc6f9258056" > UpdateBeforeBasisPivot< / a > (entering_col, leaving_row, direction_,< / div >
< div class = "line" > < a name = "l02463" > < / a > < span class = "lineno" > 2463< / span >   & update_row_);< / div >
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< div class = "line" > < a name = "l02464" > < / a > < span class = "lineno" > 2464< / span >   < / div >
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< div class = "line" > < a name = "l02465" > < / a > < span class = "lineno" > 2465< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > dir = -direction_[leaving_row] * step;< / div >
< div class = "line" > < a name = "l02466" > < / a > < span class = "lineno" > 2466< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_degenerate =< / div >
< div class = "line" > < a name = "l02467" > < / a > < span class = "lineno" > 2467< / span >   (dir == 0.0) ||< / div >
< div class = "line" > < a name = "l02468" > < / a > < span class = "lineno" > 2468< / span >   (dir > 0.0 & & variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col) > = < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) ||< / div >
< div class = "line" > < a name = "l02469" > < / a > < span class = "lineno" > 2469< / span >   (dir < 0.0 & & variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col) < = < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02470" > < / a > < span class = "lineno" > 2470< / span >   < span class = "keywordflow" > if< / span > (!is_degenerate) {< / div >
< div class = "line" > < a name = "l02471" > < / a > < span class = "lineno" > 2471< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a0dd6aa4dbd67b1f7e715b2d6f64341b7" > Set< / a > (leaving_col, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02472" > < / a > < span class = "lineno" > 2472< / span >   }< / div >
< div class = "line" > < a name = "l02473" > < / a > < span class = "lineno" > 2473< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l02474" > < / a > < span class = "lineno" > 2474< / span >   UpdateAndPivot(entering_col, leaving_row, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02475" > < / a > < span class = "lineno" > 2475< / span >   }< / div >
< div class = "line" > < a name = "l02476" > < / a > < span class = "lineno" > 2476< / span >   < / div >
< div class = "line" > < a name = "l02477" > < / a > < span class = "lineno" > 2477< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Polish num_pivots: " < / span > < < num_pivots < < < span class = "stringliteral" > " gain:" < / span > < < total_gain;< / div >
< div class = "line" > < a name = "l02478" > < / a > < span class = "lineno" > 2478< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02479" > < / a > < span class = "lineno" > 2479< / span >   }< / div >
< div class = "line" > < a name = "l02480" > < / a > < span class = "lineno" > 2480< / span >   < / div >
< div class = "line" > < a name = "l02481" > < / a > < span class = "lineno" > 2481< / span >   < span class = "comment" > // Minimizes c.x subject to A.x = 0 where A is an mxn-matrix, c an n-vector, and< / span > < / div >
< div class = "line" > < a name = "l02482" > < / a > < span class = "lineno" > 2482< / span >   < span class = "comment" > // x an n-vector.< / span > < / div >
< div class = "line" > < a name = "l02483" > < / a > < span class = "lineno" > 2483< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02484" > < / a > < span class = "lineno" > 2484< / span >   < span class = "comment" > // x is split in two parts x_B and x_N (B standing for basis).< / span > < / div >
< div class = "line" > < a name = "l02485" > < / a > < span class = "lineno" > 2485< / span >   < span class = "comment" > // In the same way, A is split in A_B (also known as B) and A_N, and< / span > < / div >
< div class = "line" > < a name = "l02486" > < / a > < span class = "lineno" > 2486< / span >   < span class = "comment" > // c is split into c_B and c_N.< / span > < / div >
< div class = "line" > < a name = "l02487" > < / a > < span class = "lineno" > 2487< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02488" > < / a > < span class = "lineno" > 2488< / span >   < span class = "comment" > // The goal is to minimize c_B.x_B + c_N.x_N< / span > < / div >
< div class = "line" > < a name = "l02489" > < / a > < span class = "lineno" > 2489< / span >   < span class = "comment" > // subject to B.x_B + A_N.x_N = 0< / span > < / div >
< div class = "line" > < a name = "l02490" > < / a > < span class = "lineno" > 2490< / span >   < span class = "comment" > // and x_lower < = x < = x_upper.< / span > < / div >
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< div class = "line" > < a name = "l02491" > < / a > < span class = "lineno" > 2491< / span >   < span class = "comment" > //< / span > < / div >
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< div class = "line" > < a name = "l02492" > < / a > < span class = "lineno" > 2492< / span >   < span class = "comment" > // To minimize c.x, at each iteration a variable from x_N is selected to< / span > < / div >
< div class = "line" > < a name = "l02493" > < / a > < span class = "lineno" > 2493< / span >   < span class = "comment" > // enter the basis, and a variable from x_B is selected to leave the basis.< / span > < / div >
< div class = "line" > < a name = "l02494" > < / a > < span class = "lineno" > 2494< / span >   < span class = "comment" > // To avoid explicit inversion of B, the algorithm solves two sub-systems:< / span > < / div >
< div class = "line" > < a name = "l02495" > < / a > < span class = "lineno" > 2495< / span >   < span class = "comment" > // y.B = c_B and B.d = a (a being the entering column).< / span > < / div >
< div class = "line" > < a name = "l02496" > < / a > < span class = "lineno" > 2496< / span >   Status RevisedSimplex::Minimize(TimeLimit* < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ) {< / div >
< div class = "line" > < a name = "l02497" > < / a > < span class = "lineno" > 2497< / span >   < a class = "code" href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > (< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l02498" > < / a > < span class = "lineno" > 2498< / span >   Cleanup update_deterministic_time_on_return(< / div >
< div class = "line" > < a name = "l02499" > < / a > < span class = "lineno" > 2499< / span >   [< span class = "keyword" > this< / span > , < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ]() { AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ); });< / div >
< div class = "line" > < a name = "l02500" > < / a > < span class = "lineno" > 2500< / span >   num_consecutive_degenerate_iterations_ = 0;< / div >
< div class = "line" > < a name = "l02501" > < / a > < span class = "lineno" > 2501< / span >   DisplayIterationInfo();< / div >
< div class = "line" > < a name = "l02502" > < / a > < span class = "lineno" > 2502< / span >   < span class = "keywordtype" > bool< / span > refactorize = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02503" > < / a > < span class = "lineno" > 2503< / span >   < / div >
< div class = "line" > < a name = "l02504" > < / a > < span class = "lineno" > 2504< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02505" > < / a > < span class = "lineno" > 2505< / span >   < span class = "comment" > // Initialize the primal phase-I objective.< / span > < / div >
< div class = "line" > < a name = "l02506" > < / a > < span class = "lineno" > 2506< / span >   < span class = "comment" > // Note that this temporarily erases the problem objective.< / span > < / div >
< div class = "line" > < a name = "l02507" > < / a > < span class = "lineno" > 2507< / span >   objective_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_cols_);< / div >
< div class = "line" > < a name = "l02508" > < / a > < span class = "lineno" > 2508< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#adb3b3b75495ee150a1fcc33e58656d22" > UpdatePrimalPhaseICosts< / a > (< / div >
< div class = "line" > < a name = "l02509" > < / a > < span class = "lineno" > 2509< / span >   < a class = "code" href = "classutil_1_1_integer_range.html" > util::IntegerRange< RowIndex> < / a > (RowIndex(0), num_rows_), & objective_);< / div >
< div class = "line" > < a name = "l02510" > < / a > < span class = "lineno" > 2510< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a385e5d3d11acfdf7a24318aaba18589c" > ResetForNewObjective< / a > ();< / div >
< div class = "line" > < a name = "l02511" > < / a > < span class = "lineno" > 2511< / span >   }< / div >
< div class = "line" > < a name = "l02512" > < / a > < span class = "lineno" > 2512< / span >   < / div >
< div class = "line" > < a name = "l02513" > < / a > < span class = "lineno" > 2513< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l02514" > < / a > < span class = "lineno" > 2514< / span >   < span class = "comment" > // TODO(user): we may loop a bit more than the actual number of iteration.< / span > < / div >
< div class = "line" > < a name = "l02515" > < / a > < span class = "lineno" > 2515< / span >   < span class = "comment" > // fix.< / span > < / div >
< div class = "line" > < a name = "l02516" > < / a > < span class = "lineno" > 2516< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > (< / div >
< div class = "line" > < a name = "l02517" > < / a > < span class = "lineno" > 2517< / span >   < a class = "code" href = "namespaceoperations__research.html#ac3308533dde4fc559cab6f4f171d54c9" > ScopedTimeDistributionUpdater< / a > timer(& iteration_stats_.total));< / div >
< div class = "line" > < a name = "l02518" > < / a > < span class = "lineno" > 2518< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (RefactorizeBasisIfNeeded(& refactorize));< / div >
< div class = "line" > < a name = "l02519" > < / a > < span class = "lineno" > 2519< / span >   < span class = "keywordflow" > if< / span > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l02520" > < / a > < span class = "lineno" > 2520< / span >   CorrectErrorsOnVariableValues();< / div >
< div class = "line" > < a name = "l02521" > < / a > < span class = "lineno" > 2521< / span >   DisplayIterationInfo();< / div >
< div class = "line" > < a name = "l02522" > < / a > < span class = "lineno" > 2522< / span >   < / div >
< div class = "line" > < a name = "l02523" > < / a > < span class = "lineno" > 2523< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02524" > < / a > < span class = "lineno" > 2524< / span >   < span class = "comment" > // Since the variable values may have been recomputed, we need to< / span > < / div >
< div class = "line" > < a name = "l02525" > < / a > < span class = "lineno" > 2525< / span >   < span class = "comment" > // recompute the primal infeasible variables and update their costs.< / span > < / div >
< div class = "line" > < a name = "l02526" > < / a > < span class = "lineno" > 2526< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#adb3b3b75495ee150a1fcc33e58656d22" > UpdatePrimalPhaseICosts< / a > (< / div >
< div class = "line" > < a name = "l02527" > < / a > < span class = "lineno" > 2527< / span >   < a class = "code" href = "classutil_1_1_integer_range.html" > util::IntegerRange< RowIndex> < / a > (RowIndex(0), num_rows_),< / div >
< div class = "line" > < a name = "l02528" > < / a > < span class = "lineno" > 2528< / span >   & objective_)) {< / div >
< div class = "line" > < a name = "l02529" > < / a > < span class = "lineno" > 2529< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a385e5d3d11acfdf7a24318aaba18589c" > ResetForNewObjective< / a > ();< / div >
< div class = "line" > < a name = "l02530" > < / a > < span class = "lineno" > 2530< / span >   }< / div >
< div class = "line" > < a name = "l02531" > < / a > < span class = "lineno" > 2531< / span >   }< / div >
< div class = "line" > < a name = "l02532" > < / a > < span class = "lineno" > 2532< / span >   < / div >
< div class = "line" > < a name = "l02533" > < / a > < span class = "lineno" > 2533< / span >   < span class = "comment" > // Computing the objective at each iteration takes time, so we just< / span > < / div >
< div class = "line" > < a name = "l02534" > < / a > < span class = "lineno" > 2534< / span >   < span class = "comment" > // check the limit when the basis is refactorized.< / span > < / div >
< div class = "line" > < a name = "l02535" > < / a > < span class = "lineno" > 2535< / span >   < span class = "keywordflow" > if< / span > (!feasibility_phase_ & & < / div >
< div class = "line" > < a name = "l02536" > < / a > < span class = "lineno" > 2536< / span >   ComputeObjectiveValue() < primal_objective_limit_) {< / div >
< div class = "line" > < a name = "l02537" > < / a > < span class = "lineno" > 2537< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Stopping the primal simplex because" < / span > < / div >
< div class = "line" > < a name = "l02538" > < / a > < span class = "lineno" > 2538< / span >   < < < span class = "stringliteral" > " the objective limit " < / span > < < primal_objective_limit_< / div >
< div class = "line" > < a name = "l02539" > < / a > < span class = "lineno" > 2539< / span >   < < < span class = "stringliteral" > " has been reached." < / span > ;< / div >
< div class = "line" > < a name = "l02540" > < / a > < span class = "lineno" > 2540< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l02541" > < / a > < span class = "lineno" > 2541< / span >   objective_limit_reached_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02542" > < / a > < span class = "lineno" > 2542< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02543" > < / a > < span class = "lineno" > 2543< / span >   }< / div >
< div class = "line" > < a name = "l02544" > < / a > < span class = "lineno" > 2544< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02545" > < / a > < span class = "lineno" > 2545< / span >   < span class = "comment" > // Note that direction_.non_zeros contains the positions of the basic< / span > < / div >
< div class = "line" > < a name = "l02546" > < / a > < span class = "lineno" > 2546< / span >   < span class = "comment" > // variables whose values were updated during the last iteration.< / span > < / div >
< div class = "line" > < a name = "l02547" > < / a > < span class = "lineno" > 2547< / span >   < span class = "keywordflow" > if< / span > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#adb3b3b75495ee150a1fcc33e58656d22" > UpdatePrimalPhaseICosts< / a > (direction_.non_zeros,< / div >
< div class = "line" > < a name = "l02548" > < / a > < span class = "lineno" > 2548< / span >   & objective_)) {< / div >
< div class = "line" > < a name = "l02549" > < / a > < span class = "lineno" > 2549< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a385e5d3d11acfdf7a24318aaba18589c" > ResetForNewObjective< / a > ();< / div >
< div class = "line" > < a name = "l02550" > < / a > < span class = "lineno" > 2550< / span >   }< / div >
< div class = "line" > < a name = "l02551" > < / a > < span class = "lineno" > 2551< / span >   }< / div >
< div class = "line" > < a name = "l02552" > < / a > < span class = "lineno" > 2552< / span >   < / div >
< div class = "line" > < a name = "l02553" > < / a > < span class = "lineno" > 2553< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost = 0.0;< / div >
< div class = "line" > < a name = "l02554" > < / a > < span class = "lineno" > 2554< / span >   ColIndex entering_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ;< / div >
< div class = "line" > < a name = "l02555" > < / a > < span class = "lineno" > 2555< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l02556" > < / a > < span class = "lineno" > 2556< / span >   entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#a47f0e702c155e2cf5c48d8a9a7d0b434" > PrimalChooseEnteringColumn< / a > (& entering_col));< / div >
< div class = "line" > < a name = "l02557" > < / a > < span class = "lineno" > 2557< / span >   < span class = "keywordflow" > if< / span > (entering_col == < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l02558" > < / a > < span class = "lineno" > 2558< / span >   < span class = "keywordflow" > if< / span > (reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5fa2e9840a56151a1bd964cb485d4fad" > AreReducedCostsPrecise< / a > () & & < / div >
< div class = "line" > < a name = "l02559" > < / a > < span class = "lineno" > 2559< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l02560" > < / a > < span class = "lineno" > 2560< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02561" > < / a > < span class = "lineno" > 2561< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > primal_infeasibility =< / div >
< div class = "line" > < a name = "l02562" > < / a > < span class = "lineno" > 2562< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a198b526739f420eb0959c87c54e036b3" > ComputeMaximumPrimalInfeasibility< / a > ();< / div >
< div class = "line" > < a name = "l02563" > < / a > < span class = "lineno" > 2563< / span >   < span class = "keywordflow" > if< / span > (primal_infeasibility < < / div >
< div class = "line" > < a name = "l02564" > < / a > < span class = "lineno" > 2564< / span >   parameters_.primal_feasibility_tolerance()) {< / div >
< div class = "line" > < a name = "l02565" > < / a > < span class = "lineno" > 2565< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > ProblemStatus::PRIMAL_FEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l02566" > < / a > < span class = "lineno" > 2566< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02567" > < / a > < span class = "lineno" > 2567< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Infeasible problem! infeasibility = " < / span > < / div >
< div class = "line" > < a name = "l02568" > < / a > < span class = "lineno" > 2568< / span >   < < primal_infeasibility;< / div >
< div class = "line" > < a name = "l02569" > < / a > < span class = "lineno" > 2569< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a7850fcfea005b86b2a3fa0d4293c5ee0" > ProblemStatus::PRIMAL_INFEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l02570" > < / a > < span class = "lineno" > 2570< / span >   }< / div >
< div class = "line" > < a name = "l02571" > < / a > < span class = "lineno" > 2571< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02572" > < / a > < span class = "lineno" > 2572< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > ProblemStatus::OPTIMAL< / a > ;< / div >
< div class = "line" > < a name = "l02573" > < / a > < span class = "lineno" > 2573< / span >   }< / div >
< div class = "line" > < a name = "l02574" > < / a > < span class = "lineno" > 2574< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02575" > < / a > < span class = "lineno" > 2575< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02576" > < / a > < span class = "lineno" > 2576< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Optimal reached, double checking..." < / span > ;< / div >
< div class = "line" > < a name = "l02577" > < / a > < span class = "lineno" > 2577< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a4d2715d1aa0805cc72a6fdd909b575a2" > MakeReducedCostsPrecise< / a > ();< / div >
< div class = "line" > < a name = "l02578" > < / a > < span class = "lineno" > 2578< / span >   refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02579" > < / a > < span class = "lineno" > 2579< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02580" > < / a > < span class = "lineno" > 2580< / span >   }< / div >
< div class = "line" > < a name = "l02581" > < / a > < span class = "lineno" > 2581< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02582" > < / a > < span class = "lineno" > 2582< / span >   reduced_cost = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ()[entering_col];< / div >
< div class = "line" > < a name = "l02583" > < / a > < span class = "lineno" > 2583< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a64f77679a598b14d2c5b6455921fb07b" > IsValidPrimalEnteringCandidate< / a > (entering_col));< / div >
< div class = "line" > < a name = "l02584" > < / a > < span class = "lineno" > 2584< / span >   < / div >
< div class = "line" > < a name = "l02585" > < / a > < span class = "lineno" > 2585< / span >   < span class = "comment" > // Solve the system B.d = a with a the entering column.< / span > < / div >
< div class = "line" > < a name = "l02586" > < / a > < span class = "lineno" > 2586< / span >   ComputeDirection(entering_col);< / div >
< div class = "line" > < a name = "l02587" > < / a > < span class = "lineno" > 2587< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ad3e807537a555d44d5e4a0da13f3768b" > TestEnteringEdgeNormPrecision< / a > (entering_col,< / div >
< div class = "line" > < a name = "l02588" > < / a > < span class = "lineno" > 2588< / span >   direction_);< / div >
< div class = "line" > < a name = "l02589" > < / a > < span class = "lineno" > 2589< / span >   < span class = "keywordflow" > if< / span > (!reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5c1aa768eb415af87f5d87c4cec7291e" > TestEnteringReducedCostPrecision< / a > (< / div >
< div class = "line" > < a name = "l02590" > < / a > < span class = "lineno" > 2590< / span >   entering_col, direction_, & reduced_cost)) {< / div >
< div class = "line" > < a name = "l02591" > < / a > < span class = "lineno" > 2591< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Skipping col #" < / span > < < entering_col < < < span class = "stringliteral" > " whose reduced cost is " < / span > < / div >
< div class = "line" > < a name = "l02592" > < / a > < span class = "lineno" > 2592< / span >   < < reduced_cost;< / div >
< div class = "line" > < a name = "l02593" > < / a > < span class = "lineno" > 2593< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02594" > < / a > < span class = "lineno" > 2594< / span >   }< / div >
< div class = "line" > < a name = "l02595" > < / a > < span class = "lineno" > 2595< / span >   }< / div >
< div class = "line" > < a name = "l02596" > < / a > < span class = "lineno" > 2596< / span >   < / div >
< div class = "line" > < a name = "l02597" > < / a > < span class = "lineno" > 2597< / span >   < span class = "comment" > // This test takes place after the check for optimality/feasibility because< / span > < / div >
< div class = "line" > < a name = "l02598" > < / a > < span class = "lineno" > 2598< / span >   < span class = "comment" > // when running with 0 iterations, we still want to report< / span > < / div >
< div class = "line" > < a name = "l02599" > < / a > < span class = "lineno" > 2599< / span >   < span class = "comment" > // ProblemStatus::OPTIMAL or ProblemStatus::PRIMAL_FEASIBLE if it is the< / span > < / div >
< div class = "line" > < a name = "l02600" > < / a > < span class = "lineno" > 2600< / span >   < span class = "comment" > // case at the beginning of the algorithm.< / span > < / div >
< div class = "line" > < a name = "l02601" > < / a > < span class = "lineno" > 2601< / span >   AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l02602" > < / a > < span class = "lineno" > 2602< / span >   < span class = "keywordflow" > if< / span > (num_iterations_ == parameters_.max_number_of_iterations() ||< / div >
< div class = "line" > < a name = "l02603" > < / a > < span class = "lineno" > 2603< / span >   < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> LimitReached()) {< / div >
< div class = "line" > < a name = "l02604" > < / a > < span class = "lineno" > 2604< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02605" > < / a > < span class = "lineno" > 2605< / span >   }< / div >
< div class = "line" > < a name = "l02606" > < / a > < span class = "lineno" > 2606< / span >   < / div >
< div class = "line" > < a name = "l02607" > < / a > < span class = "lineno" > 2607< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > step_length;< / div >
< div class = "line" > < a name = "l02608" > < / a > < span class = "lineno" > 2608< / span >   RowIndex leaving_row;< / div >
< div class = "line" > < a name = "l02609" > < / a > < span class = "lineno" > 2609< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ;< / div >
< div class = "line" > < a name = "l02610" > < / a > < span class = "lineno" > 2610< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02611" > < / a > < span class = "lineno" > 2611< / span >   PrimalPhaseIChooseLeavingVariableRow(entering_col, reduced_cost,< / div >
< div class = "line" > < a name = "l02612" > < / a > < span class = "lineno" > 2612< / span >   & refactorize, & leaving_row,< / div >
< div class = "line" > < a name = "l02613" > < / a > < span class = "lineno" > 2613< / span >   & step_length, & < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02614" > < / a > < span class = "lineno" > 2614< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02615" > < / a > < span class = "lineno" > 2615< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l02616" > < / a > < span class = "lineno" > 2616< / span >   ChooseLeavingVariableRow(entering_col, reduced_cost, & refactorize,< / div >
< div class = "line" > < a name = "l02617" > < / a > < span class = "lineno" > 2617< / span >   & leaving_row, & step_length, & < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02618" > < / a > < span class = "lineno" > 2618< / span >   }< / div >
< div class = "line" > < a name = "l02619" > < / a > < span class = "lineno" > 2619< / span >   < span class = "keywordflow" > if< / span > (refactorize) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02620" > < / a > < span class = "lineno" > 2620< / span >   < / div >
< div class = "line" > < a name = "l02621" > < / a > < span class = "lineno" > 2621< / span >   < span class = "keywordflow" > if< / span > (step_length == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > || step_length == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02622" > < / a > < span class = "lineno" > 2622< / span >   < span class = "keywordflow" > if< / span > (!basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > () ||< / div >
< div class = "line" > < a name = "l02623" > < / a > < span class = "lineno" > 2623< / span >   !reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5fa2e9840a56151a1bd964cb485d4fad" > AreReducedCostsPrecise< / a > ()) {< / div >
< div class = "line" > < a name = "l02624" > < / a > < span class = "lineno" > 2624< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Infinite step length, double checking..." < / span > ;< / div >
< div class = "line" > < a name = "l02625" > < / a > < span class = "lineno" > 2625< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a4d2715d1aa0805cc72a6fdd909b575a2" > MakeReducedCostsPrecise< / a > ();< / div >
< div class = "line" > < a name = "l02626" > < / a > < span class = "lineno" > 2626< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02627" > < / a > < span class = "lineno" > 2627< / span >   }< / div >
< div class = "line" > < a name = "l02628" > < / a > < span class = "lineno" > 2628< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02629" > < / a > < span class = "lineno" > 2629< / span >   < span class = "comment" > // This shouldn' t happen by construction.< / span > < / div >
< div class = "line" > < a name = "l02630" > < / a > < span class = "lineno" > 2630< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Unbounded feasibility problem !?" < / span > ;< / div >
< div class = "line" > < a name = "l02631" > < / a > < span class = "lineno" > 2631< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > ProblemStatus::ABNORMAL< / a > ;< / div >
< div class = "line" > < a name = "l02632" > < / a > < span class = "lineno" > 2632< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02633" > < / a > < span class = "lineno" > 2633< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Unbounded problem." < / span > ;< / div >
< div class = "line" > < a name = "l02634" > < / a > < span class = "lineno" > 2634< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8351cc0ea544c393b3e26fdf42520844" > ProblemStatus::PRIMAL_UNBOUNDED< / a > ;< / div >
< div class = "line" > < a name = "l02635" > < / a > < span class = "lineno" > 2635< / span >   solution_primal_ray_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_cols_);< / div >
< div class = "line" > < a name = "l02636" > < / a > < span class = "lineno" > 2636< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l02637" > < / a > < span class = "lineno" > 2637< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = basis_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02638" > < / a > < span class = "lineno" > 2638< / span >   solution_primal_ray_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = -direction_[< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02639" > < / a > < span class = "lineno" > 2639< / span >   }< / div >
< div class = "line" > < a name = "l02640" > < / a > < span class = "lineno" > 2640< / span >   solution_primal_ray_[entering_col] = 1.0;< / div >
< div class = "line" > < a name = "l02641" > < / a > < span class = "lineno" > 2641< / span >   < span class = "keywordflow" > if< / span > (step_length == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02642" > < / a > < span class = "lineno" > 2642< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7ff1f9383648fd132667b1e601229c9" > ChangeSign< / a > (& solution_primal_ray_);< / div >
< div class = "line" > < a name = "l02643" > < / a > < span class = "lineno" > 2643< / span >   }< / div >
< div class = "line" > < a name = "l02644" > < / a > < span class = "lineno" > 2644< / span >   }< / div >
< div class = "line" > < a name = "l02645" > < / a > < span class = "lineno" > 2645< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02646" > < / a > < span class = "lineno" > 2646< / span >   }< / div >
< div class = "line" > < a name = "l02647" > < / a > < span class = "lineno" > 2647< / span >   < / div >
< div class = "line" > < a name = "l02648" > < / a > < span class = "lineno" > 2648< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > step = (reduced_cost > 0.0) ? -step_length : step_length;< / div >
< div class = "line" > < a name = "l02649" > < / a > < span class = "lineno" > 2649< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_ & & leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l02650" > < / a > < span class = "lineno" > 2650< / span >   < span class = "comment" > // For phase-I we currently always set the leaving variable to its exact< / span > < / div >
< div class = "line" > < a name = "l02651" > < / a > < span class = "lineno" > 2651< / span >   < span class = "comment" > // bound even if by doing so we may take a small step in the wrong< / span > < / div >
< div class = "line" > < a name = "l02652" > < / a > < span class = "lineno" > 2652< / span >   < span class = "comment" > // direction and may increase the overall infeasibility.< / span > < / div >
< div class = "line" > < a name = "l02653" > < / a > < span class = "lineno" > 2653< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02654" > < / a > < span class = "lineno" > 2654< / span >   < span class = "comment" > // TODO(user): Investigate alternatives even if this seems to work well in< / span > < / div >
< div class = "line" > < a name = "l02655" > < / a > < span class = "lineno" > 2655< / span >   < span class = "comment" > // practice. Note that the final returned solution will have the property< / span > < / div >
< div class = "line" > < a name = "l02656" > < / a > < span class = "lineno" > 2656< / span >   < span class = "comment" > // that all non-basic variables are at their exact bound, so it is nice< / span > < / div >
< div class = "line" > < a name = "l02657" > < / a > < span class = "lineno" > 2657< / span >   < span class = "comment" > // that we do not report ProblemStatus::PRIMAL_FEASIBLE if a solution with< / span > < / div >
< div class = "line" > < a name = "l02658" > < / a > < span class = "lineno" > 2658< / span >   < span class = "comment" > // this property cannot be found.< / span > < / div >
< div class = "line" > < a name = "l02659" > < / a > < span class = "lineno" > 2659< / span >   step = ComputeStepToMoveBasicVariableToBound(leaving_row, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02660" > < / a > < span class = "lineno" > 2660< / span >   }< / div >
< div class = "line" > < a name = "l02661" > < / a > < span class = "lineno" > 2661< / span >   < / div >
< div class = "line" > < a name = "l02662" > < / a > < span class = "lineno" > 2662< / span >   < span class = "comment" > // Store the leaving_col before basis_ change.< / span > < / div >
< div class = "line" > < a name = "l02663" > < / a > < span class = "lineno" > 2663< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col =< / div >
< div class = "line" > < a name = "l02664" > < / a > < span class = "lineno" > 2664< / span >   (leaving_row == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > : basis_[leaving_row];< / div >
< div class = "line" > < a name = "l02665" > < / a > < span class = "lineno" > 2665< / span >   < / div >
< div class = "line" > < a name = "l02666" > < / a > < span class = "lineno" > 2666< / span >   < span class = "comment" > // An iteration is called ' degenerate' if the leaving variable is already< / span > < / div >
< div class = "line" > < a name = "l02667" > < / a > < span class = "lineno" > 2667< / span >   < span class = "comment" > // primal-infeasible and we make it even more infeasible or if we do a zero< / span > < / div >
< div class = "line" > < a name = "l02668" > < / a > < span class = "lineno" > 2668< / span >   < span class = "comment" > // step.< / span > < / div >
< div class = "line" > < a name = "l02669" > < / a > < span class = "lineno" > 2669< / span >   < span class = "keywordtype" > bool< / span > is_degenerate = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02670" > < / a > < span class = "lineno" > 2670< / span >   < span class = "keywordflow" > if< / span > (leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l02671" > < / a > < span class = "lineno" > 2671< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > dir = -direction_[leaving_row] * step;< / div >
< div class = "line" > < a name = "l02672" > < / a > < span class = "lineno" > 2672< / span >   is_degenerate =< / div >
< div class = "line" > < a name = "l02673" > < / a > < span class = "lineno" > 2673< / span >   (dir == 0.0) ||< / div >
< div class = "line" > < a name = "l02674" > < / a > < span class = "lineno" > 2674< / span >   (dir > 0.0 & & variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col) > = < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) ||< / div >
< div class = "line" > < a name = "l02675" > < / a > < span class = "lineno" > 2675< / span >   (dir < 0.0 & & variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (leaving_col) < = < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02676" > < / a > < span class = "lineno" > 2676< / span >   < / div >
< div class = "line" > < a name = "l02677" > < / a > < span class = "lineno" > 2677< / span >   < span class = "comment" > // If the iteration is not degenerate, the leaving variable should go to< / span > < / div >
< div class = "line" > < a name = "l02678" > < / a > < span class = "lineno" > 2678< / span >   < span class = "comment" > // its exact target bound (it is how the step is computed).< / span > < / div >
< div class = "line" > < a name = "l02679" > < / a > < span class = "lineno" > 2679< / span >   < span class = "keywordflow" > if< / span > (!is_degenerate) {< / div >
< div class = "line" > < a name = "l02680" > < / a > < span class = "lineno" > 2680< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (step, ComputeStepToMoveBasicVariableToBound(leaving_row,< / div >
< div class = "line" > < a name = "l02681" > < / a > < span class = "lineno" > 2681< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02682" > < / a > < span class = "lineno" > 2682< / span >   }< / div >
< div class = "line" > < a name = "l02683" > < / a > < span class = "lineno" > 2683< / span >   }< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02684" > < / a > < span class = "lineno" > 2684< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02685" > < / a > < span class = "lineno" > 2685< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a9808cfe964d67616b5775b0ab113b7aa" > UpdateOnPivoting< / a > (direction_, entering_col, step);< / div >
< div class = "line" > < a name = "l02686" > < / a > < span class = "lineno" > 2686< / span >   < span class = "keywordflow" > if< / span > (leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l02687" > < / a > < span class = "lineno" > 2687< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ac770d9d78b0dda3be3bacb43038170e0" > UpdateBeforeBasisPivot< / a > (< / div >
< div class = "line" > < a name = "l02688" > < / a > < span class = "lineno" > 2688< / span >   entering_col, basis_[leaving_row], leaving_row, direction_,< / div >
< div class = "line" > < a name = "l02689" > < / a > < span class = "lineno" > 2689< / span >   & update_row_);< / div >
< div class = "line" > < a name = "l02690" > < / a > < span class = "lineno" > 2690< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9a45fa5802a8fec70bec2fc6f9258056" > UpdateBeforeBasisPivot< / a > (entering_col, leaving_row,< / div >
< div class = "line" > < a name = "l02691" > < / a > < span class = "lineno" > 2691< / span >   direction_, & update_row_);< / div >
< div class = "line" > < a name = "l02692" > < / a > < span class = "lineno" > 2692< / span >   < span class = "keywordflow" > if< / span > (!is_degenerate) {< / div >
< div class = "line" > < a name = "l02693" > < / a > < span class = "lineno" > 2693< / span >   < span class = "comment" > // On a non-degenerate iteration, the leaving variable should be at its< / span > < / div >
< div class = "line" > < a name = "l02694" > < / a > < span class = "lineno" > 2694< / span >   < span class = "comment" > // exact bound. This corrects an eventual small numerical error since< / span > < / div >
< div class = "line" > < a name = "l02695" > < / a > < span class = "lineno" > 2695< / span >   < span class = "comment" > // ' value + direction * step' where step is< / span > < / div >
< div class = "line" > < a name = "l02696" > < / a > < span class = "lineno" > 2696< / span >   < span class = "comment" > // ' (target_bound - value) / direction' < / span > < / div >
< div class = "line" > < a name = "l02697" > < / a > < span class = "lineno" > 2697< / span >   < span class = "comment" > // may be slighlty different from target_bound.< / span > < / div >
< div class = "line" > < a name = "l02698" > < / a > < span class = "lineno" > 2698< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a0dd6aa4dbd67b1f7e715b2d6f64341b7" > Set< / a > (leaving_col, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02699" > < / a > < span class = "lineno" > 2699< / span >   }< / div >
< div class = "line" > < a name = "l02700" > < / a > < span class = "lineno" > 2700< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l02701" > < / a > < span class = "lineno" > 2701< / span >   UpdateAndPivot(entering_col, leaving_row, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02702" > < / a > < span class = "lineno" > 2702< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > ({< / div >
< div class = "line" > < a name = "l02703" > < / a > < span class = "lineno" > 2703< / span >   < span class = "keywordflow" > if< / span > (is_degenerate) {< / div >
< div class = "line" > < a name = "l02704" > < / a > < span class = "lineno" > 2704< / span >   timer.AlsoUpdate(& iteration_stats_.degenerate);< / div >
< div class = "line" > < a name = "l02705" > < / a > < span class = "lineno" > 2705< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02706" > < / a > < span class = "lineno" > 2706< / span >   timer.AlsoUpdate(& iteration_stats_.normal);< / div >
< div class = "line" > < a name = "l02707" > < / a > < span class = "lineno" > 2707< / span >   }< / div >
< div class = "line" > < a name = "l02708" > < / a > < span class = "lineno" > 2708< / span >   });< / div >
< div class = "line" > < a name = "l02709" > < / a > < span class = "lineno" > 2709< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02710" > < / a > < span class = "lineno" > 2710< / span >   < span class = "comment" > // Bound flip. This makes sure that the flipping variable is at its bound< / span > < / div >
< div class = "line" > < a name = "l02711" > < / a > < span class = "lineno" > 2711< / span >   < span class = "comment" > // and has the correct status.< / span > < / div >
< div class = "line" > < a name = "l02712" > < / a > < span class = "lineno" > 2712< / span >   < a class = "code" href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa62e32b9a6efb029208f576ee123b459f" > VariableType::UPPER_AND_LOWER_BOUNDED< / a > ,< / div >
< div class = "line" > < a name = "l02713" > < / a > < span class = "lineno" > 2713< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ()[entering_col]);< / div >
< div class = "line" > < a name = "l02714" > < / a > < span class = "lineno" > 2714< / span >   < span class = "keywordflow" > if< / span > (step > 0.0) {< / div >
< div class = "line" > < a name = "l02715" > < / a > < span class = "lineno" > 2715< / span >   SetNonBasicVariableStatusAndDeriveValue(entering_col,< / div >
< div class = "line" > < a name = "l02716" > < / a > < span class = "lineno" > 2716< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l02717" > < / a > < span class = "lineno" > 2717< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (step < 0.0) {< / div >
< div class = "line" > < a name = "l02718" > < / a > < span class = "lineno" > 2718< / span >   SetNonBasicVariableStatusAndDeriveValue(entering_col,< / div >
< div class = "line" > < a name = "l02719" > < / a > < span class = "lineno" > 2719< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l02720" > < / a > < span class = "lineno" > 2720< / span >   }< / div >
< div class = "line" > < a name = "l02721" > < / a > < span class = "lineno" > 2721< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a74fea3dc78cd1ea3532f9959c4abfceb" > SetAndDebugCheckThatColumnIsDualFeasible< / a > (entering_col);< / div >
< div class = "line" > < a name = "l02722" > < / a > < span class = "lineno" > 2722< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > (timer.AlsoUpdate(& iteration_stats_.bound_flip));< / div >
< div class = "line" > < a name = "l02723" > < / a > < span class = "lineno" > 2723< / span >   }< / div >
< div class = "line" > < a name = "l02724" > < / a > < span class = "lineno" > 2724< / span >   < / div >
< div class = "line" > < a name = "l02725" > < / a > < span class = "lineno" > 2725< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_ & & leaving_row != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l02726" > < / a > < span class = "lineno" > 2726< / span >   < span class = "comment" > // Set the leaving variable to its exact bound.< / span > < / div >
< div class = "line" > < a name = "l02727" > < / a > < span class = "lineno" > 2727< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a102a587506447ec5cba544b93a1877e0" > SetNonBasicVariableValueFromStatus< / a > (leaving_col);< / div >
< div class = "line" > < a name = "l02728" > < / a > < span class = "lineno" > 2728< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a6601cb283594a187e1a513598f3a9b3d" > SetNonBasicVariableCostToZero< / a > (leaving_col,< / div >
< div class = "line" > < a name = "l02729" > < / a > < span class = "lineno" > 2729< / span >   & objective_[leaving_col]);< / div >
< div class = "line" > < a name = "l02730" > < / a > < span class = "lineno" > 2730< / span >   }< / div >
< div class = "line" > < a name = "l02731" > < / a > < span class = "lineno" > 2731< / span >   < / div >
< div class = "line" > < a name = "l02732" > < / a > < span class = "lineno" > 2732< / span >   < span class = "comment" > // Stats about consecutive degenerate iterations.< / span > < / div >
< div class = "line" > < a name = "l02733" > < / a > < span class = "lineno" > 2733< / span >   < span class = "keywordflow" > if< / span > (step_length == 0.0) {< / div >
< div class = "line" > < a name = "l02734" > < / a > < span class = "lineno" > 2734< / span >   num_consecutive_degenerate_iterations_++;< / div >
< div class = "line" > < a name = "l02735" > < / a > < span class = "lineno" > 2735< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02736" > < / a > < span class = "lineno" > 2736< / span >   < span class = "keywordflow" > if< / span > (num_consecutive_degenerate_iterations_ > 0) {< / div >
< div class = "line" > < a name = "l02737" > < / a > < span class = "lineno" > 2737< / span >   iteration_stats_.degenerate_run_size.Add(< / div >
< div class = "line" > < a name = "l02738" > < / a > < span class = "lineno" > 2738< / span >   num_consecutive_degenerate_iterations_);< / div >
< div class = "line" > < a name = "l02739" > < / a > < span class = "lineno" > 2739< / span >   num_consecutive_degenerate_iterations_ = 0;< / div >
< div class = "line" > < a name = "l02740" > < / a > < span class = "lineno" > 2740< / span >   }< / div >
< div class = "line" > < a name = "l02741" > < / a > < span class = "lineno" > 2741< / span >   }< / div >
< div class = "line" > < a name = "l02742" > < / a > < span class = "lineno" > 2742< / span >   ++num_iterations_;< / div >
< div class = "line" > < a name = "l02743" > < / a > < span class = "lineno" > 2743< / span >   }< / div >
< div class = "line" > < a name = "l02744" > < / a > < span class = "lineno" > 2744< / span >   < span class = "keywordflow" > if< / span > (num_consecutive_degenerate_iterations_ > 0) {< / div >
< div class = "line" > < a name = "l02745" > < / a > < span class = "lineno" > 2745< / span >   iteration_stats_.degenerate_run_size.Add(< / div >
< div class = "line" > < a name = "l02746" > < / a > < span class = "lineno" > 2746< / span >   num_consecutive_degenerate_iterations_);< / div >
< div class = "line" > < a name = "l02747" > < / a > < span class = "lineno" > 2747< / span >   }< / div >
< div class = "line" > < a name = "l02748" > < / a > < span class = "lineno" > 2748< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02749" > < / a > < span class = "lineno" > 2749< / span >   }< / div >
< div class = "line" > < a name = "l02750" > < / a > < span class = "lineno" > 2750< / span >   < / div >
< div class = "line" > < a name = "l02751" > < / a > < span class = "lineno" > 2751< / span >   < span class = "comment" > // TODO(user): Two other approaches for the phase I described in Koberstein' s< / span > < / div >
< div class = "line" > < a name = "l02752" > < / a > < span class = "lineno" > 2752< / span >   < span class = "comment" > // PhD thesis seem worth trying at some point:< / span > < / div >
< div class = "line" > < a name = "l02753" > < / a > < span class = "lineno" > 2753< / span >   < span class = "comment" > // - The subproblem approach, which enables one to use a normal phase II dual,< / span > < / div >
< div class = "line" > < a name = "l02754" > < / a > < span class = "lineno" > 2754< / span >   < span class = "comment" > // but requires an efficient bound-flipping ratio test since the new problem< / span > < / div >
< div class = "line" > < a name = "l02755" > < / a > < span class = "lineno" > 2755< / span >   < span class = "comment" > // has all its variables boxed.< / span > < / div >
< div class = "line" > < a name = "l02756" > < / a > < span class = "lineno" > 2756< / span >   < span class = "comment" > // - Pan' s method, which is really fast but have no theoretical guarantee of< / span > < / div >
< div class = "line" > < a name = "l02757" > < / a > < span class = "lineno" > 2757< / span >   < span class = "comment" > // terminating and thus needs to use one of the other methods as a fallback if< / span > < / div >
< div class = "line" > < a name = "l02758" > < / a > < span class = "lineno" > 2758< / span >   < span class = "comment" > // it fails to make progress.< / span > < / div >
< div class = "line" > < a name = "l02759" > < / a > < span class = "lineno" > 2759< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02760" > < / a > < span class = "lineno" > 2760< / span >   < span class = "comment" > // Note that the returned status applies to the primal problem!< / span > < / div >
< div class = "line" > < a name = "l02761" > < / a > < span class = "lineno" > 2761< / span >   Status RevisedSimplex::DualMinimize(TimeLimit* < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ) {< / div >
< div class = "line" > < a name = "l02762" > < / a > < span class = "lineno" > 2762< / span >   Cleanup update_deterministic_time_on_return(< / div >
< div class = "line" > < a name = "l02763" > < / a > < span class = "lineno" > 2763< / span >   [< span class = "keyword" > this< / span > , < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ]() { AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ); });< / div >
< div class = "line" > < a name = "l02764" > < / a > < span class = "lineno" > 2764< / span >   num_consecutive_degenerate_iterations_ = 0;< / div >
< div class = "line" > < a name = "l02765" > < / a > < span class = "lineno" > 2765< / span >   < span class = "keywordtype" > bool< / span > refactorize = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02766" > < / a > < span class = "lineno" > 2766< / span >   < / div >
< div class = "line" > < a name = "l02767" > < / a > < span class = "lineno" > 2767< / span >   bound_flip_candidates_.clear();< / div >
< div class = "line" > < a name = "l02768" > < / a > < span class = "lineno" > 2768< / span >   pair_to_ignore_.clear();< / div >
< div class = "line" > < a name = "l02769" > < / a > < span class = "lineno" > 2769< / span >   < / div >
< div class = "line" > < a name = "l02770" > < / a > < span class = "lineno" > 2770< / span >   < span class = "comment" > // Leaving variable.< / span > < / div >
< div class = "line" > < a name = "l02771" > < / a > < span class = "lineno" > 2771< / span >   RowIndex leaving_row;< / div >
< div class = "line" > < a name = "l02772" > < / a > < span class = "lineno" > 2772< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > cost_variation;< / div >
< div class = "line" > < a name = "l02773" > < / a > < span class = "lineno" > 2773< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02774" > < / a > < span class = "lineno" > 2774< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02775" > < / a > < span class = "lineno" > 2775< / span >   < span class = "comment" > // Entering variable.< / span > < / div >
< div class = "line" > < a name = "l02776" > < / a > < span class = "lineno" > 2776< / span >   ColIndex entering_col;< / div >
< div class = "line" > < a name = "l02777" > < / a > < span class = "lineno" > 2777< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > ;< / div >
< div class = "line" > < a name = "l02778" > < / a > < span class = "lineno" > 2778< / span >   < / div >
< div class = "line" > < a name = "l02779" > < / a > < span class = "lineno" > 2779< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l02780" > < / a > < span class = "lineno" > 2780< / span >   < span class = "comment" > // TODO(user): we may loop a bit more than the actual number of iteration.< / span > < / div >
< div class = "line" > < a name = "l02781" > < / a > < span class = "lineno" > 2781< / span >   < span class = "comment" > // fix.< / span > < / div >
< div class = "line" > < a name = "l02782" > < / a > < span class = "lineno" > 2782< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > (< / div >
< div class = "line" > < a name = "l02783" > < / a > < span class = "lineno" > 2783< / span >   < a class = "code" href = "namespaceoperations__research.html#ac3308533dde4fc559cab6f4f171d54c9" > ScopedTimeDistributionUpdater< / a > timer(& iteration_stats_.total));< / div >
< div class = "line" > < a name = "l02784" > < / a > < span class = "lineno" > 2784< / span >   < / div >
< div class = "line" > < a name = "l02785" > < / a > < span class = "lineno" > 2785< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > old_refactorize_value = refactorize;< / div >
< div class = "line" > < a name = "l02786" > < / a > < span class = "lineno" > 2786< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (RefactorizeBasisIfNeeded(& refactorize));< / div >
< div class = "line" > < a name = "l02787" > < / a > < span class = "lineno" > 2787< / span >   < / div >
< div class = "line" > < a name = "l02788" > < / a > < span class = "lineno" > 2788< / span >   < span class = "comment" > // If the basis is refactorized, we recompute all the values in order to< / span > < / div >
< div class = "line" > < a name = "l02789" > < / a > < span class = "lineno" > 2789< / span >   < span class = "comment" > // have a good precision.< / span > < / div >
< div class = "line" > < a name = "l02790" > < / a > < span class = "lineno" > 2790< / span >   < span class = "keywordflow" > if< / span > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l02791" > < / a > < span class = "lineno" > 2791< / span >   < span class = "comment" > // We do not want to recompute the reduced costs too often, this is< / span > < / div >
< div class = "line" > < a name = "l02792" > < / a > < span class = "lineno" > 2792< / span >   < span class = "comment" > // because that may break the overall direction taken by the last steps< / span > < / div >
< div class = "line" > < a name = "l02793" > < / a > < span class = "lineno" > 2793< / span >   < span class = "comment" > // and may lead to less improvement on degenerate problems.< / span > < / div >
< div class = "line" > < a name = "l02794" > < / a > < span class = "lineno" > 2794< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02795" > < / a > < span class = "lineno" > 2795< / span >   < span class = "comment" > // During phase-I, we do want the reduced costs to be as precise as< / span > < / div >
< div class = "line" > < a name = "l02796" > < / a > < span class = "lineno" > 2796< / span >   < span class = "comment" > // possible. TODO(user): Investigate why and fix the TODO in< / span > < / div >
< div class = "line" > < a name = "l02797" > < / a > < span class = "lineno" > 2797< / span >   < span class = "comment" > // PermuteBasis().< / span > < / div >
< div class = "line" > < a name = "l02798" > < / a > < span class = "lineno" > 2798< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02799" > < / a > < span class = "lineno" > 2799< / span >   < span class = "comment" > // Reduced costs are needed by MakeBoxedVariableDualFeasible(), so if we< / span > < / div >
< div class = "line" > < a name = "l02800" > < / a > < span class = "lineno" > 2800< / span >   < span class = "comment" > // do recompute them, it is better to do that first.< / span > < / div >
< div class = "line" > < a name = "l02801" > < / a > < span class = "lineno" > 2801< / span >   < span class = "keywordflow" > if< / span > (!feasibility_phase_ & & !reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5b05974f9610779eea6c8594ed42405c" > AreReducedCostsRecomputed< / a > () & & < / div >
< div class = "line" > < a name = "l02802" > < / a > < span class = "lineno" > 2802< / span >   !old_refactorize_value) {< / div >
< div class = "line" > < a name = "l02803" > < / a > < span class = "lineno" > 2803< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > dual_residual_error =< / div >
< div class = "line" > < a name = "l02804" > < / a > < span class = "lineno" > 2804< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a3ec5e60bd3a327da7d43d0d5ba21ab17" > ComputeMaximumDualResidual< / a > ();< / div >
< div class = "line" > < a name = "l02805" > < / a > < span class = "lineno" > 2805< / span >   < span class = "keywordflow" > if< / span > (dual_residual_error > < / div >
< div class = "line" > < a name = "l02806" > < / a > < span class = "lineno" > 2806< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa6a9551b792028d16dc7123c80f429d1" > GetDualFeasibilityTolerance< / a > ()) {< / div >
< div class = "line" > < a name = "l02807" > < / a > < span class = "lineno" > 2807< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Recomputing reduced costs. Dual residual = " < / span > < / div >
< div class = "line" > < a name = "l02808" > < / a > < span class = "lineno" > 2808< / span >   < < dual_residual_error;< / div >
< div class = "line" > < a name = "l02809" > < / a > < span class = "lineno" > 2809< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a4d2715d1aa0805cc72a6fdd909b575a2" > MakeReducedCostsPrecise< / a > ();< / div >
< div class = "line" > < a name = "l02810" > < / a > < span class = "lineno" > 2810< / span >   }< / div >
< div class = "line" > < a name = "l02811" > < / a > < span class = "lineno" > 2811< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02812" > < / a > < span class = "lineno" > 2812< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a4d2715d1aa0805cc72a6fdd909b575a2" > MakeReducedCostsPrecise< / a > ();< / div >
< div class = "line" > < a name = "l02813" > < / a > < span class = "lineno" > 2813< / span >   }< / div >
< div class = "line" > < a name = "l02814" > < / a > < span class = "lineno" > 2814< / span >   < / div >
< div class = "line" > < a name = "l02815" > < / a > < span class = "lineno" > 2815< / span >   < span class = "comment" > // TODO(user): Make RecomputeBasicVariableValues() do nothing< / span > < / div >
< div class = "line" > < a name = "l02816" > < / a > < span class = "lineno" > 2816< / span >   < span class = "comment" > // if it was already recomputed on a refactorized basis. This is the< / span > < / div >
< div class = "line" > < a name = "l02817" > < / a > < span class = "lineno" > 2817< / span >   < span class = "comment" > // same behavior as MakeReducedCostsPrecise().< / span > < / div >
< div class = "line" > < a name = "l02818" > < / a > < span class = "lineno" > 2818< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02819" > < / a > < span class = "lineno" > 2819< / span >   < span class = "comment" > // TODO(user): Do not recompute the variable values each time we< / span > < / div >
< div class = "line" > < a name = "l02820" > < / a > < span class = "lineno" > 2820< / span >   < span class = "comment" > // refactorize the matrix, like for the reduced costs? That may lead to< / span > < / div >
< div class = "line" > < a name = "l02821" > < / a > < span class = "lineno" > 2821< / span >   < span class = "comment" > // a worse behavior than keeping the " imprecise" version and only< / span > < / div >
< div class = "line" > < a name = "l02822" > < / a > < span class = "lineno" > 2822< / span >   < span class = "comment" > // recomputing it when its precision is above a threshold.< / span > < / div >
< div class = "line" > < a name = "l02823" > < / a > < span class = "lineno" > 2823< / span >   < span class = "keywordflow" > if< / span > (!feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02824" > < / a > < span class = "lineno" > 2824< / span >   MakeBoxedVariableDualFeasible(< / div >
< div class = "line" > < a name = "l02825" > < / a > < span class = "lineno" > 2825< / span >   variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a505af340486fcf70ee83abb32e31a628" > GetNonBasicBoxedVariables< / a > (),< / div >
< div class = "line" > < a name = "l02826" > < / a > < span class = "lineno" > 2826< / span >   < span class = "comment" > /*update_basic_values=*/< / span > < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l02827" > < / a > < span class = "lineno" > 2827< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l02828" > < / a > < span class = "lineno" > 2828< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a9323beaddf591680b191fa618c40519f" > ResetPrimalInfeasibilityInformation< / a > ();< / div >
< div class = "line" > < a name = "l02829" > < / a > < span class = "lineno" > 2829< / span >   < / div >
< div class = "line" > < a name = "l02830" > < / a > < span class = "lineno" > 2830< / span >   < span class = "comment" > // Computing the objective at each iteration takes time, so we just< / span > < / div >
< div class = "line" > < a name = "l02831" > < / a > < span class = "lineno" > 2831< / span >   < span class = "comment" > // check the limit when the basis is refactorized.< / span > < / div >
< div class = "line" > < a name = "l02832" > < / a > < span class = "lineno" > 2832< / span >   < span class = "keywordflow" > if< / span > (ComputeObjectiveValue() > dual_objective_limit_) {< / div >
< div class = "line" > < a name = "l02833" > < / a > < span class = "lineno" > 2833< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Stopping the dual simplex because" < / span > < / div >
< div class = "line" > < a name = "l02834" > < / a > < span class = "lineno" > 2834< / span >   < < < span class = "stringliteral" > " the objective limit " < / span > < < dual_objective_limit_< / div >
< div class = "line" > < a name = "l02835" > < / a > < span class = "lineno" > 2835< / span >   < < < span class = "stringliteral" > " has been reached." < / span > ;< / div >
< div class = "line" > < a name = "l02836" > < / a > < span class = "lineno" > 2836< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > ProblemStatus::DUAL_FEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l02837" > < / a > < span class = "lineno" > 2837< / span >   objective_limit_reached_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02838" > < / a > < span class = "lineno" > 2838< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02839" > < / a > < span class = "lineno" > 2839< / span >   }< / div >
< div class = "line" > < a name = "l02840" > < / a > < span class = "lineno" > 2840< / span >   }< / div >
< div class = "line" > < a name = "l02841" > < / a > < span class = "lineno" > 2841< / span >   < / div >
< div class = "line" > < a name = "l02842" > < / a > < span class = "lineno" > 2842< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l02843" > < / a > < span class = "lineno" > 2843< / span >   DisplayIterationInfo();< / div >
< div class = "line" > < a name = "l02844" > < / a > < span class = "lineno" > 2844< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02845" > < / a > < span class = "lineno" > 2845< / span >   < span class = "comment" > // Updates from the previous iteration that can be skipped if we< / span > < / div >
< div class = "line" > < a name = "l02846" > < / a > < span class = "lineno" > 2846< / span >   < span class = "comment" > // recompute everything (see other case above).< / span > < / div >
< div class = "line" > < a name = "l02847" > < / a > < span class = "lineno" > 2847< / span >   < span class = "keywordflow" > if< / span > (!feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02848" > < / a > < span class = "lineno" > 2848< / span >   < span class = "comment" > // Make sure the boxed variables are dual-feasible before choosing the< / span > < / div >
< div class = "line" > < a name = "l02849" > < / a > < span class = "lineno" > 2849< / span >   < span class = "comment" > // leaving variable row.< / span > < / div >
< div class = "line" > < a name = "l02850" > < / a > < span class = "lineno" > 2850< / span >   MakeBoxedVariableDualFeasible(bound_flip_candidates_,< / div >
< div class = "line" > < a name = "l02851" > < / a > < span class = "lineno" > 2851< / span >   < span class = "comment" > /*update_basic_values=*/< / span > < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l02852" > < / a > < span class = "lineno" > 2852< / span >   bound_flip_candidates_.clear();< / div >
< div class = "line" > < a name = "l02853" > < / a > < span class = "lineno" > 2853< / span >   < / div >
< div class = "line" > < a name = "l02854" > < / a > < span class = "lineno" > 2854< / span >   < span class = "comment" > // The direction_.non_zeros contains the positions for which the basic< / span > < / div >
< div class = "line" > < a name = "l02855" > < / a > < span class = "lineno" > 2855< / span >   < span class = "comment" > // variable value was changed during the previous iterations.< / span > < / div >
< div class = "line" > < a name = "l02856" > < / a > < span class = "lineno" > 2856< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#ac78d744661f731cec1a48bdfa2513d35" > UpdatePrimalInfeasibilityInformation< / a > (< / div >
< div class = "line" > < a name = "l02857" > < / a > < span class = "lineno" > 2857< / span >   direction_.non_zeros);< / div >
< div class = "line" > < a name = "l02858" > < / a > < span class = "lineno" > 2858< / span >   }< / div >
< div class = "line" > < a name = "l02859" > < / a > < span class = "lineno" > 2859< / span >   }< / div >
< div class = "line" > < a name = "l02860" > < / a > < span class = "lineno" > 2860< / span >   < / div >
< div class = "line" > < a name = "l02861" > < / a > < span class = "lineno" > 2861< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02862" > < / a > < span class = "lineno" > 2862< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (DualPhaseIChooseLeavingVariableRow(< / div >
< div class = "line" > < a name = "l02863" > < / a > < span class = "lineno" > 2863< / span >   & leaving_row, & cost_variation, & < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l02864" > < / a > < span class = "lineno" > 2864< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02865" > < / a > < span class = "lineno" > 2865< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (DualChooseLeavingVariableRow(< / div >
< div class = "line" > < a name = "l02866" > < / a > < span class = "lineno" > 2866< / span >   & leaving_row, & cost_variation, & < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02867" > < / a > < span class = "lineno" > 2867< / span >   }< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02868" > < / a > < span class = "lineno" > 2868< / span >   < span class = "keywordflow" > if< / span > (leaving_row == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
< div class = "line" > < a name = "l02869" > < / a > < span class = "lineno" > 2869< / span >   < span class = "keywordflow" > if< / span > (!basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ()) {< / div >
< div class = "line" > < a name = "l02870" > < / a > < span class = "lineno" > 2870< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Optimal reached, double checking." < / span > ;< / div >
< div class = "line" > < a name = "l02871" > < / a > < span class = "lineno" > 2871< / span >   refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02872" > < / a > < span class = "lineno" > 2872< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02873" > < / a > < span class = "lineno" > 2873< / span >   }< / div >
< div class = "line" > < a name = "l02874" > < / a > < span class = "lineno" > 2874< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02875" > < / a > < span class = "lineno" > 2875< / span >   < span class = "comment" > // Note that since the basis is refactorized, the variable values< / span > < / div >
< div class = "line" > < a name = "l02876" > < / a > < span class = "lineno" > 2876< / span >   < span class = "comment" > // will be recomputed at the beginning of the second phase. The boxed< / span > < / div >
< div class = "line" > < a name = "l02877" > < / a > < span class = "lineno" > 2877< / span >   < span class = "comment" > // variable values will also be corrected by< / span > < / div >
< div class = "line" > < a name = "l02878" > < / a > < span class = "lineno" > 2878< / span >   < span class = "comment" > // MakeBoxedVariableDualFeasible().< / span > < / div >
< div class = "line" > < a name = "l02879" > < / a > < span class = "lineno" > 2879< / span >   < span class = "keywordflow" > if< / span > (num_dual_infeasible_positions_ == 0) {< / div >
< div class = "line" > < a name = "l02880" > < / a > < span class = "lineno" > 2880< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > ProblemStatus::DUAL_FEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l02881" > < / a > < span class = "lineno" > 2881< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02882" > < / a > < span class = "lineno" > 2882< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a1583be76ac58a4ac4c024f73b3d85811" > ProblemStatus::DUAL_INFEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l02883" > < / a > < span class = "lineno" > 2883< / span >   }< / div >
< div class = "line" > < a name = "l02884" > < / a > < span class = "lineno" > 2884< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02885" > < / a > < span class = "lineno" > 2885< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > ProblemStatus::OPTIMAL< / a > ;< / div >
< div class = "line" > < a name = "l02886" > < / a > < span class = "lineno" > 2886< / span >   }< / div >
< div class = "line" > < a name = "l02887" > < / a > < span class = "lineno" > 2887< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02888" > < / a > < span class = "lineno" > 2888< / span >   }< / div >
< div class = "line" > < a name = "l02889" > < / a > < span class = "lineno" > 2889< / span >   < / div >
< div class = "line" > < a name = "l02890" > < / a > < span class = "lineno" > 2890< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#ac9f13d2561598d3a04b409dd7b4e1f0c" > ComputeUpdateRow< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l02891" > < / a > < span class = "lineno" > 2891< / span >   < span class = "keywordflow" > for< / span > (std::pair< RowIndex, ColIndex> pair : pair_to_ignore_) {< / div >
< div class = "line" > < a name = "l02892" > < / a > < span class = "lineno" > 2892< / span >   < span class = "keywordflow" > if< / span > (pair.first == leaving_row) {< / div >
< div class = "line" > < a name = "l02893" > < / a > < span class = "lineno" > 2893< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#a985c788192edce2013ad59d4f0c934cf" > IgnoreUpdatePosition< / a > (pair.second);< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02894" > < / a > < span class = "lineno" > 2894< / span >   }< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02895" > < / a > < span class = "lineno" > 2895< / span >   }< / div >
< div class = "line" > < a name = "l02896" > < / a > < span class = "lineno" > 2896< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02897" > < / a > < span class = "lineno" > 2897< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#ab86e98881b35d34abe244a4dd776c7f6" > DualPhaseIChooseEnteringColumn< / a > (< / div >
< div class = "line" > < a name = "l02898" > < / a > < span class = "lineno" > 2898< / span >   update_row_, cost_variation, & entering_col, & < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > ));< / div >
< div class = "line" > < a name = "l02899" > < / a > < span class = "lineno" > 2899< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02900" > < / a > < span class = "lineno" > 2900< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#a5f7903563e698189cc516ed6a5496a9a" > DualChooseEnteringColumn< / a > (< / div >
< div class = "line" > < a name = "l02901" > < / a > < span class = "lineno" > 2901< / span >   update_row_, cost_variation, & bound_flip_candidates_, & entering_col,< / div >
< div class = "line" > < a name = "l02902" > < / a > < span class = "lineno" > 2902< / span >   & < a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > ));< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02903" > < / a > < span class = "lineno" > 2903< / span >   }< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02904" > < / a > < span class = "lineno" > 2904< / span >   < / div >
< div class = "line" > < a name = "l02905" > < / a > < span class = "lineno" > 2905< / span >   < span class = "comment" > // No entering_col: Unbounded problem / Infeasible problem.< / span > < / div >
< div class = "line" > < a name = "l02906" > < / a > < span class = "lineno" > 2906< / span >   < span class = "keywordflow" > if< / span > (entering_col == < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l02907" > < / a > < span class = "lineno" > 2907< / span >   < span class = "keywordflow" > if< / span > (!reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5fa2e9840a56151a1bd964cb485d4fad" > AreReducedCostsPrecise< / a > ()) {< / div >
< div class = "line" > < a name = "l02908" > < / a > < span class = "lineno" > 2908< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " No entering column. Double checking..." < / span > ;< / div >
< div class = "line" > < a name = "l02909" > < / a > < span class = "lineno" > 2909< / span >   refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02910" > < / a > < span class = "lineno" > 2910< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02911" > < / a > < span class = "lineno" > 2911< / span >   }< / div >
< div class = "line" > < a name = "l02912" > < / a > < span class = "lineno" > 2912< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > IsRefactorized< / a > ());< / div >
< div class = "line" > < a name = "l02913" > < / a > < span class = "lineno" > 2913< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02914" > < / a > < span class = "lineno" > 2914< / span >   < span class = "comment" > // This shouldn' t happen by construction.< / span > < / div >
< div class = "line" > < a name = "l02915" > < / a > < span class = "lineno" > 2915< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Unbounded dual feasibility problem !?" < / span > ;< / div >
< div class = "line" > < a name = "l02916" > < / a > < span class = "lineno" > 2916< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > ProblemStatus::ABNORMAL< / a > ;< / div >
< div class = "line" > < a name = "l02917" > < / a > < span class = "lineno" > 2917< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02918" > < / a > < span class = "lineno" > 2918< / span >   problem_status_ = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > ProblemStatus::DUAL_UNBOUNDED< / a > ;< / div >
< div class = "line" > < a name = "l02919" > < / a > < span class = "lineno" > 2919< / span >   solution_dual_ray_ =< / div >
< div class = "line" > < a name = "l02920" > < / a > < span class = "lineno" > 2920< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#aaa803ce9366dca251925e0bdde517430" > Transpose< / a > (update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#a0c3551dfd558be8edc0bd8d565cfca30" > GetUnitRowLeftInverse< / a > ().< a class = "code" href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ae0473e18a367af671dc3f08063c80da4" > values< / a > );< / div >
< div class = "line" > < a name = "l02921" > < / a > < span class = "lineno" > 2921< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#a7b39f45e976b642dac5b652e0a455e8f" > RecomputeFullUpdateRow< / a > (leaving_row);< / div >
< div class = "line" > < a name = "l02922" > < / a > < span class = "lineno" > 2922< / span >   solution_dual_ray_row_combination_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > AssignToZero< / a > (num_cols_);< / div >
< div class = "line" > < a name = "l02923" > < / a > < span class = "lineno" > 2923< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#af8e957f1c8389089554ded7bd2b7b45f" > GetNonZeroPositions< / a > ()) {< / div >
< div class = "line" > < a name = "l02924" > < / a > < span class = "lineno" > 2924< / span >   solution_dual_ray_row_combination_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
< div class = "line" > < a name = "l02925" > < / a > < span class = "lineno" > 2925< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#abd6d81960f38fe1a69a153b03e60d47e" > GetCoefficient< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02926" > < / a > < span class = "lineno" > 2926< / span >   }< / div >
< div class = "line" > < a name = "l02927" > < / a > < span class = "lineno" > 2927< / span >   < span class = "keywordflow" > if< / span > (cost_variation < 0) {< / div >
< div class = "line" > < a name = "l02928" > < / a > < span class = "lineno" > 2928< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7ff1f9383648fd132667b1e601229c9" > ChangeSign< / a > (& solution_dual_ray_);< / div >
< div class = "line" > < a name = "l02929" > < / a > < span class = "lineno" > 2929< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7ff1f9383648fd132667b1e601229c9" > ChangeSign< / a > (& solution_dual_ray_row_combination_);< / div >
< div class = "line" > < a name = "l02930" > < / a > < span class = "lineno" > 2930< / span >   }< / div >
< div class = "line" > < a name = "l02931" > < / a > < span class = "lineno" > 2931< / span >   }< / div >
< div class = "line" > < a name = "l02932" > < / a > < span class = "lineno" > 2932< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02933" > < / a > < span class = "lineno" > 2933< / span >   }< / div >
< div class = "line" > < a name = "l02934" > < / a > < span class = "lineno" > 2934< / span >   < / div >
< div class = "line" > < a name = "l02935" > < / a > < span class = "lineno" > 2935< / span >   < span class = "comment" > // If the coefficient is too small, we recompute the reduced costs.< / span > < / div >
< div class = "line" > < a name = "l02936" > < / a > < span class = "lineno" > 2936< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entering_coeff = update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#abd6d81960f38fe1a69a153b03e60d47e" > GetCoefficient< / a > (entering_col);< / div >
< div class = "line" > < a name = "l02937" > < / a > < span class = "lineno" > 2937< / span >   < span class = "keywordflow" > if< / span > (std::abs(entering_coeff) < parameters_.dual_small_pivot_threshold() & & < / div >
< div class = "line" > < a name = "l02938" > < / a > < span class = "lineno" > 2938< / span >   !reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5fa2e9840a56151a1bd964cb485d4fad" > AreReducedCostsPrecise< / a > ()) {< / div >
< div class = "line" > < a name = "l02939" > < / a > < span class = "lineno" > 2939< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Trying not to pivot by " < / span > < < entering_coeff;< / div >
< div class = "line" > < a name = "l02940" > < / a > < span class = "lineno" > 2940< / span >   refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02941" > < / a > < span class = "lineno" > 2941< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02942" > < / a > < span class = "lineno" > 2942< / span >   }< / div >
< div class = "line" > < a name = "l02943" > < / a > < span class = "lineno" > 2943< / span >   < / div >
< div class = "line" > < a name = "l02944" > < / a > < span class = "lineno" > 2944< / span >   < span class = "comment" > // If the reduced cost is already precise, we check with the direction_.< / span > < / div >
< div class = "line" > < a name = "l02945" > < / a > < span class = "lineno" > 2945< / span >   < span class = "comment" > // This is at least needed to avoid corner cases where< / span > < / div >
< div class = "line" > < a name = "l02946" > < / a > < span class = "lineno" > 2946< / span >   < span class = "comment" > // direction_[leaving_row] is actually 0 which causes a floating< / span > < / div >
< div class = "line" > < a name = "l02947" > < / a > < span class = "lineno" > 2947< / span >   < span class = "comment" > // point exception below.< / span > < / div >
< div class = "line" > < a name = "l02948" > < / a > < span class = "lineno" > 2948< / span >   ComputeDirection(entering_col);< / div >
< div class = "line" > < a name = "l02949" > < / a > < span class = "lineno" > 2949< / span >   < span class = "keywordflow" > if< / span > (std::abs(direction_[leaving_row]) < < / div >
< div class = "line" > < a name = "l02950" > < / a > < span class = "lineno" > 2950< / span >   parameters_.minimum_acceptable_pivot()) {< / div >
< div class = "line" > < a name = "l02951" > < / a > < span class = "lineno" > 2951< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Do not pivot by " < / span > < < entering_coeff< / div >
< div class = "line" > < a name = "l02952" > < / a > < span class = "lineno" > 2952< / span >   < < < span class = "stringliteral" > " because the direction is " < / span > < < direction_[leaving_row];< / div >
< div class = "line" > < a name = "l02953" > < / a > < span class = "lineno" > 2953< / span >   refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02954" > < / a > < span class = "lineno" > 2954< / span >   pair_to_ignore_.push_back({leaving_row, entering_col});< / div >
< div class = "line" > < a name = "l02955" > < / a > < span class = "lineno" > 2955< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02956" > < / a > < span class = "lineno" > 2956< / span >   }< / div >
< div class = "line" > < a name = "l02957" > < / a > < span class = "lineno" > 2957< / span >   pair_to_ignore_.clear();< / div >
< div class = "line" > < a name = "l02958" > < / a > < span class = "lineno" > 2958< / span >   < / div >
< div class = "line" > < a name = "l02959" > < / a > < span class = "lineno" > 2959< / span >   < span class = "comment" > // This test takes place after the check for optimality/feasibility because< / span > < / div >
< div class = "line" > < a name = "l02960" > < / a > < span class = "lineno" > 2960< / span >   < span class = "comment" > // when running with 0 iterations, we still want to report< / span > < / div >
< div class = "line" > < a name = "l02961" > < / a > < span class = "lineno" > 2961< / span >   < span class = "comment" > // ProblemStatus::OPTIMAL or ProblemStatus::PRIMAL_FEASIBLE if it is the< / span > < / div >
< div class = "line" > < a name = "l02962" > < / a > < span class = "lineno" > 2962< / span >   < span class = "comment" > // case at the beginning of the algorithm.< / span > < / div >
< div class = "line" > < a name = "l02963" > < / a > < span class = "lineno" > 2963< / span >   AdvanceDeterministicTime(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l02964" > < / a > < span class = "lineno" > 2964< / span >   < span class = "keywordflow" > if< / span > (num_iterations_ == parameters_.max_number_of_iterations() ||< / div >
< div class = "line" > < a name = "l02965" > < / a > < span class = "lineno" > 2965< / span >   < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> LimitReached()) {< / div >
< div class = "line" > < a name = "l02966" > < / a > < span class = "lineno" > 2966< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l02967" > < / a > < span class = "lineno" > 2967< / span >   }< / div >
< div class = "line" > < a name = "l02968" > < / a > < span class = "lineno" > 2968< / span >   < / div >
< div class = "line" > < a name = "l02969" > < / a > < span class = "lineno" > 2969< / span >   < a class = "code" href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > ({< / div >
< div class = "line" > < a name = "l02970" > < / a > < span class = "lineno" > 2970< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > == 0.0) {< / div >
< div class = "line" > < a name = "l02971" > < / a > < span class = "lineno" > 2971< / span >   timer.AlsoUpdate(& iteration_stats_.degenerate);< / div >
< div class = "line" > < a name = "l02972" > < / a > < span class = "lineno" > 2972< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02973" > < / a > < span class = "lineno" > 2973< / span >   timer.AlsoUpdate(& iteration_stats_.normal);< / div >
< div class = "line" > < a name = "l02974" > < / a > < span class = "lineno" > 2974< / span >   }< / div >
< div class = "line" > < a name = "l02975" > < / a > < span class = "lineno" > 2975< / span >   });< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l02976" > < / a > < span class = "lineno" > 2976< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l02977" > < / a > < span class = "lineno" > 2977< / span >   < span class = "comment" > // Update basis. Note that direction_ is already computed.< / span > < / div >
< div class = "line" > < a name = "l02978" > < / a > < span class = "lineno" > 2978< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02979" > < / a > < span class = "lineno" > 2979< / span >   < span class = "comment" > // TODO(user): this is pretty much the same in the primal or dual code.< / span > < / div >
< div class = "line" > < a name = "l02980" > < / a > < span class = "lineno" > 2980< / span >   < span class = "comment" > // We just need to know to what bound the leaving variable will be set to.< / span > < / div >
< div class = "line" > < a name = "l02981" > < / a > < span class = "lineno" > 2981< / span >   < span class = "comment" > // Factorize more common code?< / span > < / div >
< div class = "line" > < a name = "l02982" > < / a > < span class = "lineno" > 2982< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02983" > < / a > < span class = "lineno" > 2983< / span >   < span class = "comment" > // During phase I, we do not need the basic variable values at all.< / span > < / div >
< div class = "line" > < a name = "l02984" > < / a > < span class = "lineno" > 2984< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > primal_step = 0.0;< / div >
< div class = "line" > < a name = "l02985" > < / a > < span class = "lineno" > 2985< / span >   < span class = "keywordflow" > if< / span > (feasibility_phase_) {< / div >
< div class = "line" > < a name = "l02986" > < / a > < span class = "lineno" > 2986< / span >   DualPhaseIUpdatePrice(leaving_row, entering_col);< / div >
< div class = "line" > < a name = "l02987" > < / a > < span class = "lineno" > 2987< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02988" > < / a > < span class = "lineno" > 2988< / span >   primal_step =< / div >
< div class = "line" > < a name = "l02989" > < / a > < span class = "lineno" > 2989< / span >   ComputeStepToMoveBasicVariableToBound(leaving_row, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > );< / div >
< div class = "line" > < a name = "l02990" > < / a > < span class = "lineno" > 2990< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a9808cfe964d67616b5775b0ab113b7aa" > UpdateOnPivoting< / a > (direction_, entering_col, primal_step);< / div >
< div class = "line" > < a name = "l02991" > < / a > < span class = "lineno" > 2991< / span >   }< / div >
< div class = "line" > < a name = "l02992" > < / a > < span class = "lineno" > 2992< / span >   < / div >
< div class = "line" > < a name = "l02993" > < / a > < span class = "lineno" > 2993< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9a45fa5802a8fec70bec2fc6f9258056" > UpdateBeforeBasisPivot< / a > (entering_col, leaving_row, direction_,< / div >
< div class = "line" > < a name = "l02994" > < / a > < span class = "lineno" > 2994< / span >   & update_row_);< / div >
< div class = "line" > < a name = "l02995" > < / a > < span class = "lineno" > 2995< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a07ecfa8dabb00a7f680dc64efe1127d1" > UpdateBeforeBasisPivot< / a > (< / div >
< div class = "line" > < a name = "l02996" > < / a > < span class = "lineno" > 2996< / span >   entering_col, leaving_row, direction_,< / div >
< div class = "line" > < a name = "l02997" > < / a > < span class = "lineno" > 2997< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#a0c3551dfd558be8edc0bd8d565cfca30" > GetUnitRowLeftInverse< / a > ());< / div >
< div class = "line" > < a name = "l02998" > < / a > < span class = "lineno" > 2998< / span >   < / div >
< div class = "line" > < a name = "l02999" > < / a > < span class = "lineno" > 2999< / span >   < span class = "comment" > // It is important to do the actual pivot after the update above!< / span > < / div >
< div class = "line" > < a name = "l03000" > < / a > < span class = "lineno" > 3000< / span >   < span class = "keyword" > const< / span > ColIndex leaving_col = basis_[leaving_row];< / div >
< div class = "line" > < a name = "l03001" > < / a > < span class = "lineno" > 3001< / span >   < a class = "code" href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > (< / div >
< div class = "line" > < a name = "l03002" > < / a > < span class = "lineno" > 3002< / span >   UpdateAndPivot(entering_col, leaving_row, < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ));< / div >
< div class = "line" > < a name = "l03003" > < / a > < span class = "lineno" > 3003< / span >   < / div >
< div class = "line" > < a name = "l03004" > < / a > < span class = "lineno" > 3004< / span >   < span class = "comment" > // This makes sure the leaving variable is at its exact bound. Tests< / span > < / div >
< div class = "line" > < a name = "l03005" > < / a > < span class = "lineno" > 3005< / span >   < span class = "comment" > // indicate that this makes everything more stable. Note also that during< / span > < / div >
< div class = "line" > < a name = "l03006" > < / a > < span class = "lineno" > 3006< / span >   < span class = "comment" > // the feasibility phase, the variable values are not used, but that the< / span > < / div >
< div class = "line" > < a name = "l03007" > < / a > < span class = "lineno" > 3007< / span >   < span class = "comment" > // correct non-basic variable value are needed at the end.< / span > < / div >
< div class = "line" > < a name = "l03008" > < / a > < span class = "lineno" > 3008< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a102a587506447ec5cba544b93a1877e0" > SetNonBasicVariableValueFromStatus< / a > (leaving_col);< / div >
< div class = "line" > < a name = "l03009" > < / a > < span class = "lineno" > 3009< / span >   < / div >
< div class = "line" > < a name = "l03010" > < / a > < span class = "lineno" > 3010< / span >   < span class = "comment" > // This is slow, but otherwise we have a really bad precision on the< / span > < / div >
< div class = "line" > < a name = "l03011" > < / a > < span class = "lineno" > 3011< / span >   < span class = "comment" > // variable values ...< / span > < / div >
< div class = "line" > < a name = "l03012" > < / a > < span class = "lineno" > 3012< / span >   < span class = "keywordflow" > if< / span > (std::abs(primal_step) * parameters_.primal_feasibility_tolerance() > < / div >
< div class = "line" > < a name = "l03013" > < / a > < span class = "lineno" > 3013< / span >   1.0) {< / div >
< div class = "line" > < a name = "l03014" > < / a > < span class = "lineno" > 3014< / span >   refactorize = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l03015" > < / a > < span class = "lineno" > 3015< / span >   }< / div >
< div class = "line" > < a name = "l03016" > < / a > < span class = "lineno" > 3016< / span >   ++num_iterations_;< / div >
< div class = "line" > < a name = "l03017" > < / a > < span class = "lineno" > 3017< / span >   }< / div >
< div class = "line" > < a name = "l03018" > < / a > < span class = "lineno" > 3018< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > Status::OK< / a > ();< / div >
< div class = "line" > < a name = "l03019" > < / a > < span class = "lineno" > 3019< / span >   }< / div >
< div class = "line" > < a name = "l03020" > < / a > < span class = "lineno" > 3020< / span >   < / div >
< div class = "line" > < a name = "l03021" > < / a > < span class = "lineno" > 3021< / span >   ColIndex RevisedSimplex::SlackColIndex(RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03022" > < / a > < span class = "lineno" > 3022< / span >   < span class = "comment" > // TODO(user): Remove this function.< / span > < / div >
< div class = "line" > < a name = "l03023" > < / a > < span class = "lineno" > 3023< / span >   < a class = "code" href = "revised__simplex_8cc.html#a8806083a7bf6a4ee4a4976c226b93788" > DCHECK_ROW_BOUNDS< / a > (< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l03024" > < / a > < span class = "lineno" > 3024< / span >   < span class = "keywordflow" > return< / span > first_slack_col_ + < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l03025" > < / a > < span class = "lineno" > 3025< / span >   }< / div >
< div class = "line" > < a name = "l03026" > < / a > < span class = "lineno" > 3026< / span >   < / div >
< div class = "line" > < a name = "l03027" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#afab08c75dbc7618e656f7de9dff4c627" > 3027< / a > < / span >   std::string < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#afab08c75dbc7618e656f7de9dff4c627" > RevisedSimplex::StatString< / a > () {< / div >
< div class = "line" > < a name = "l03028" > < / a > < span class = "lineno" > 3028< / span >   std::string result;< / div >
< div class = "line" > < a name = "l03029" > < / a > < span class = "lineno" > 3029< / span >   result.append(iteration_stats_.StatString());< / div >
< div class = "line" > < a name = "l03030" > < / a > < span class = "lineno" > 3030< / span >   result.append(ratio_test_stats_.StatString());< / div >
< div class = "line" > < a name = "l03031" > < / a > < span class = "lineno" > 3031< / span >   result.append(entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03032" > < / a > < span class = "lineno" > 3032< / span >   result.append(reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03033" > < / a > < span class = "lineno" > 3033< / span >   result.append(variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03034" > < / a > < span class = "lineno" > 3034< / span >   result.append(primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03035" > < / a > < span class = "lineno" > 3035< / span >   result.append(dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03036" > < / a > < span class = "lineno" > 3036< / span >   result.append(update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03037" > < / a > < span class = "lineno" > 3037< / span >   result.append(basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03038" > < / a > < span class = "lineno" > 3038< / span >   result.append(function_stats_.< a class = "code" href = "classoperations__research_1_1_stats_group.html#af9bc435481ae9e6e60d66a65d5394a7f" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03039" > < / a > < span class = "lineno" > 3039< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l03040" > < / a > < span class = "lineno" > 3040< / span >   }< / div >
< div class = "line" > < a name = "l03041" > < / a > < span class = "lineno" > 3041< / span >   < / div >
< div class = "line" > < a name = "l03042" > < / a > < span class = "lineno" > 3042< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayAllStats() {< / div >
< div class = "line" > < a name = "l03043" > < / a > < span class = "lineno" > 3043< / span >   < span class = "keywordflow" > if< / span > (absl::GetFlag(FLAGS_simplex_display_stats)) {< / div >
< div class = "line" > < a name = "l03044" > < / a > < span class = "lineno" > 3044< / span >   absl::FPrintF(stderr, < span class = "stringliteral" > " %s" < / span > , < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#afab08c75dbc7618e656f7de9dff4c627" > StatString< / a > ());< / div >
< div class = "line" > < a name = "l03045" > < / a > < span class = "lineno" > 3045< / span >   absl::FPrintF(stderr, < span class = "stringliteral" > " %s" < / span > , GetPrettySolverStats());< / div >
< div class = "line" > < a name = "l03046" > < / a > < span class = "lineno" > 3046< / span >   }< / div >
< div class = "line" > < a name = "l03047" > < / a > < span class = "lineno" > 3047< / span >   }< / div >
< div class = "line" > < a name = "l03048" > < / a > < span class = "lineno" > 3048< / span >   < / div >
< div class = "line" > < a name = "l03049" > < / a > < span class = "lineno" > 3049< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > RevisedSimplex::ComputeObjectiveValue()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03050" > < / a > < span class = "lineno" > 3050< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l03051" > < / a > < span class = "lineno" > 3051< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a46fb729c0be27d1b97db15e0ce9c6067" > PreciseScalarProduct< / a > (objective_,< / div >
< div class = "line" > < a name = "l03052" > < / a > < span class = "lineno" > 3052< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#aaa803ce9366dca251925e0bdde517430" > Transpose< / a > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > GetDenseRow< / a > ()));< / div >
< div class = "line" > < a name = "l03053" > < / a > < span class = "lineno" > 3053< / span >   }< / div >
< div class = "line" > < a name = "l03054" > < / a > < span class = "lineno" > 3054< / span >   < / div >
< div class = "line" > < a name = "l03055" > < / a > < span class = "lineno" > 3055< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > RevisedSimplex::ComputeInitialProblemObjectiveValue()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03056" > < / a > < span class = "lineno" > 3056< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l03057" > < / a > < span class = "lineno" > 3057< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > sum = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a46fb729c0be27d1b97db15e0ce9c6067" > PreciseScalarProduct< / a > (< / div >
< div class = "line" > < a name = "l03058" > < / a > < span class = "lineno" > 3058< / span >   objective_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#aaa803ce9366dca251925e0bdde517430" > Transpose< / a > (variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > GetDenseRow< / a > ()));< / div >
< div class = "line" > < a name = "l03059" > < / a > < span class = "lineno" > 3059< / span >   < span class = "keywordflow" > return< / span > objective_scaling_factor_ * (sum + objective_offset_);< / div >
< div class = "line" > < a name = "l03060" > < / a > < span class = "lineno" > 3060< / span >   }< / div >
< div class = "line" > < a name = "l03061" > < / a > < span class = "lineno" > 3061< / span >   < / div >
< div class = "line" > < a name = "l03062" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae7202d055b6b172a8a1da4f5b136f9ea" > 3062< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae7202d055b6b172a8a1da4f5b136f9ea" > RevisedSimplex::SetParameters< / a > (< span class = "keyword" > const< / span > GlopParameters& < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ) {< / div >
< div class = "line" > < a name = "l03063" > < / a > < span class = "lineno" > 3063< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
< div class = "line" > < a name = "l03064" > < / a > < span class = "lineno" > 3064< / span >   random_.seed(< a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > .random_seed());< / div >
< div class = "line" > < a name = "l03065" > < / a > < span class = "lineno" > 3065< / span >   initial_parameters_ = < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ;< / div >
< div class = "line" > < a name = "l03066" > < / a > < span class = "lineno" > 3066< / span >   parameters_ = < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ;< / div >
< div class = "line" > < a name = "l03067" > < / a > < span class = "lineno" > 3067< / span >   PropagateParameters();< / div >
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< div class = "line" > < a name = "l03068" > < / a > < span class = "lineno" > 3068< / span >   }< / div >
< div class = "line" > < a name = "l03069" > < / a > < span class = "lineno" > 3069< / span >   < / div >
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< div class = "line" > < a name = "l03070" > < / a > < span class = "lineno" > 3070< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::PropagateParameters() {< / div >
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< div class = "line" > < a name = "l03071" > < / a > < span class = "lineno" > 3071< / span >   < a class = "code" href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > (& function_stats_);< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l03072" > < / a > < span class = "lineno" > 3072< / span >   basis_factorization_.< a class = "code" href = "classoperations__research_1_1glop_1_1_basis_factorization.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l03073" > < / a > < span class = "lineno" > 3073< / span >   entering_variable_.< a class = "code" href = "classoperations__research_1_1glop_1_1_entering_variable.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l03074" > < / a > < span class = "lineno" > 3074< / span >   reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l03075" > < / a > < span class = "lineno" > 3075< / span >   dual_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l03076" > < / a > < span class = "lineno" > 3076< / span >   primal_edge_norms_.< a class = "code" href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l03077" > < / a > < span class = "lineno" > 3077< / span >   update_row_.< a class = "code" href = "classoperations__research_1_1glop_1_1_update_row.html#ae7202d055b6b172a8a1da4f5b136f9ea" > SetParameters< / a > (parameters_);< / div >
< div class = "line" > < a name = "l03078" > < / a > < span class = "lineno" > 3078< / span >   }< / div >
< div class = "line" > < a name = "l03079" > < / a > < span class = "lineno" > 3079< / span >   < / div >
< div class = "line" > < a name = "l03080" > < / a > < span class = "lineno" > 3080< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayIterationInfo()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03081" > < / a > < span class = "lineno" > 3081< / span >   < span class = "keywordflow" > if< / span > (parameters_.log_search_progress() || < a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1)) {< / div >
< div class = "line" > < a name = "l03082" > < / a > < span class = "lineno" > 3082< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > iter = feasibility_phase_< / div >
< div class = "line" > < a name = "l03083" > < / a > < span class = "lineno" > 3083< / span >   ? num_iterations_< / div >
< div class = "line" > < a name = "l03084" > < / a > < span class = "lineno" > 3084< / span >   : num_iterations_ - num_feasibility_iterations_;< / div >
< div class = "line" > < a name = "l03085" > < / a > < span class = "lineno" > 3085< / span >   < span class = "comment" > // Note that in the dual phase II, ComputeObjectiveValue() is also computing< / span > < / div >
< div class = "line" > < a name = "l03086" > < / a > < span class = "lineno" > 3086< / span >   < span class = "comment" > // the dual objective even if it uses the variable values. This is because< / span > < / div >
< div class = "line" > < a name = "l03087" > < / a > < span class = "lineno" > 3087< / span >   < span class = "comment" > // if we modify the bounds to make the problem primal-feasible, we are at< / span > < / div >
< div class = "line" > < a name = "l03088" > < / a > < span class = "lineno" > 3088< / span >   < span class = "comment" > // the optimal and hence the two objectives are the same.< / span > < / div >
< div class = "line" > < a name = "l03089" > < / a > < span class = "lineno" > 3089< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > objective =< / div >
< div class = "line" > < a name = "l03090" > < / a > < span class = "lineno" > 3090< / span >   !feasibility_phase_< / div >
< div class = "line" > < a name = "l03091" > < / a > < span class = "lineno" > 3091< / span >   ? ComputeInitialProblemObjectiveValue()< / div >
< div class = "line" > < a name = "l03092" > < / a > < span class = "lineno" > 3092< / span >   : (parameters_.use_dual_simplex()< / div >
< div class = "line" > < a name = "l03093" > < / a > < span class = "lineno" > 3093< / span >   ? reduced_costs_.ComputeSumOfDualInfeasibilities()< / div >
< div class = "line" > < a name = "l03094" > < / a > < span class = "lineno" > 3094< / span >   : variable_values_.ComputeSumOfPrimalInfeasibilities());< / div >
< div class = "line" > < a name = "l03095" > < / a > < span class = "lineno" > 3095< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < (feasibility_phase_ ? < span class = "stringliteral" > " Feasibility" < / span > : < span class = "stringliteral" > " Optimization" < / span > )< / div >
< div class = "line" > < a name = "l03096" > < / a > < span class = "lineno" > 3096< / span >   < < < span class = "stringliteral" > " phase, iteration # " < / span > < < iter< / div >
< div class = "line" > < a name = "l03097" > < / a > < span class = "lineno" > 3097< / span >   < < < span class = "stringliteral" > " , objective = " < / span > < < absl::StrFormat(< span class = "stringliteral" > " %.15E" < / span > , objective);< / div >
< div class = "line" > < a name = "l03098" > < / a > < span class = "lineno" > 3098< / span >   }< / div >
< div class = "line" > < a name = "l03099" > < / a > < span class = "lineno" > 3099< / span >   }< / div >
< div class = "line" > < a name = "l03100" > < / a > < span class = "lineno" > 3100< / span >   < / div >
< div class = "line" > < a name = "l03101" > < / a > < span class = "lineno" > 3101< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayErrors()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03102" > < / a > < span class = "lineno" > 3102< / span >   < span class = "keywordflow" > if< / span > (parameters_.log_search_progress() || < a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (1)) {< / div >
< div class = "line" > < a name = "l03103" > < / a > < span class = "lineno" > 3103< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Primal infeasibility (bounds) = " < / span > < / div >
< div class = "line" > < a name = "l03104" > < / a > < span class = "lineno" > 3104< / span >   < < variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a198b526739f420eb0959c87c54e036b3" > ComputeMaximumPrimalInfeasibility< / a > ();< / div >
< div class = "line" > < a name = "l03105" > < / a > < span class = "lineno" > 3105< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Primal residual |A.x - b| = " < / span > < / div >
< div class = "line" > < a name = "l03106" > < / a > < span class = "lineno" > 3106< / span >   < < variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > ComputeMaximumPrimalResidual< / a > ();< / div >
< div class = "line" > < a name = "l03107" > < / a > < span class = "lineno" > 3107< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Dual infeasibility (reduced costs) = " < / span > < / div >
< div class = "line" > < a name = "l03108" > < / a > < span class = "lineno" > 3108< / span >   < < reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa84a93c1b6159eaddded3370f434aae8" > ComputeMaximumDualInfeasibility< / a > ();< / div >
< div class = "line" > < a name = "l03109" > < / a > < span class = "lineno" > 3109< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > ) < < < span class = "stringliteral" > " Dual residual |c_B - y.B| = " < / span > < / div >
< div class = "line" > < a name = "l03110" > < / a > < span class = "lineno" > 3110< / span >   < < reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a3ec5e60bd3a327da7d43d0d5ba21ab17" > ComputeMaximumDualResidual< / a > ();< / div >
< div class = "line" > < a name = "l03111" > < / a > < span class = "lineno" > 3111< / span >   }< / div >
< div class = "line" > < a name = "l03112" > < / a > < span class = "lineno" > 3112< / span >   }< / div >
< div class = "line" > < a name = "l03113" > < / a > < span class = "lineno" > 3113< / span >   < / div >
< div class = "line" > < a name = "l03114" > < / a > < span class = "lineno" > 3114< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l03115" > < / a > < span class = "lineno" > 3115< / span >   < / div >
< div class = "line" > < a name = "l03116" > < / a > < span class = "lineno" > 3116< / span >   std::string StringifyMonomialWithFlags(< span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > ,< / div >
< div class = "line" > < a name = "l03117" > < / a > < span class = "lineno" > 3117< / span >   < span class = "keyword" > const< / span > std::string& x) {< / div >
< div class = "line" > < a name = "l03118" > < / a > < span class = "lineno" > 3118< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a093fe5e10e710a17a68c2472f0a69f5e" > StringifyMonomial< / a > (< / div >
< div class = "line" > < a name = "l03119" > < / a > < span class = "lineno" > 3119< / span >   < a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > , x, absl::GetFlag(FLAGS_simplex_display_numbers_as_fractions));< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l03120" > < / a > < span class = "lineno" > 3120< / span >   }< / div >
< div class = "line" > < a name = "l03121" > < / a > < span class = "lineno" > 3121< / span >   < / div >
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< div class = "line" > < a name = "l03122" > < / a > < span class = "lineno" > 3122< / span >   < span class = "comment" > // Returns a string representing the rational approximation of x or a decimal< / span > < / div >
< div class = "line" > < a name = "l03123" > < / a > < span class = "lineno" > 3123< / span >   < span class = "comment" > // approximation of x according to< / span > < / div >
< div class = "line" > < a name = "l03124" > < / a > < span class = "lineno" > 3124< / span >   < span class = "comment" > // absl::GetFlag(FLAGS_simplex_display_numbers_as_fractions).< / span > < / div >
< div class = "line" > < a name = "l03125" > < / a > < span class = "lineno" > 3125< / span >   std::string StringifyWithFlags(< span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > x) {< / div >
< div class = "line" > < a name = "l03126" > < / a > < span class = "lineno" > 3126< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a36e54e6744a2e1a24f3844f6b5b56044" > Stringify< / a > (x,< / div >
< div class = "line" > < a name = "l03127" > < / a > < span class = "lineno" > 3127< / span >   absl::GetFlag(FLAGS_simplex_display_numbers_as_fractions));< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l03128" > < / a > < span class = "lineno" > 3128< / span >   }< / div >
< div class = "line" > < a name = "l03129" > < / a > < span class = "lineno" > 3129< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l03130" > < / a > < span class = "lineno" > 3130< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l03131" > < / a > < span class = "lineno" > 3131< / span >   < / div >
< div class = "line" > < a name = "l03132" > < / a > < span class = "lineno" > 3132< / span >   std::string RevisedSimplex::SimpleVariableInfo(ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03133" > < / a > < span class = "lineno" > 3133< / span >   std::string output;< / div >
< div class = "line" > < a name = "l03134" > < / a > < span class = "lineno" > 3134< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866a" > VariableType< / a > variable_type = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03135" > < / a > < span class = "lineno" > 3135< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > variable_status = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > GetStatusRow< / a > ()[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03136" > < / a > < span class = "lineno" > 3136< / span >   absl::StrAppendFormat(& output, < span class = "stringliteral" > " %d (%s) = %s, %s, %s, [%s,%s]" < / span > , < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > .value(),< / div >
< div class = "line" > < a name = "l03137" > < / a > < span class = "lineno" > 3137< / span >   variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
< div class = "line" > < a name = "l03138" > < / a > < span class = "lineno" > 3138< / span >   StringifyWithFlags(variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )),< / div >
< div class = "line" > < a name = "l03139" > < / a > < span class = "lineno" > 3139< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#aee749790021783ccc83b2d6abe70c1c0" > GetVariableStatusString< / a > (variable_status),< / div >
< div class = "line" > < a name = "l03140" > < / a > < span class = "lineno" > 3140< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae073fb72ea53b6d0f3d7f73cfd6c6ed9" > GetVariableTypeString< / a > (variable_type),< / div >
< div class = "line" > < a name = "l03141" > < / a > < span class = "lineno" > 3141< / span >   StringifyWithFlags(lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]),< / div >
< div class = "line" > < a name = "l03142" > < / a > < span class = "lineno" > 3142< / span >   StringifyWithFlags(upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
< div class = "line" > < a name = "l03143" > < / a > < span class = "lineno" > 3143< / span >   < span class = "keywordflow" > return< / span > output;< / div >
< div class = "line" > < a name = "l03144" > < / a > < span class = "lineno" > 3144< / span >   }< / div >
< div class = "line" > < a name = "l03145" > < / a > < span class = "lineno" > 3145< / span >   < / div >
< div class = "line" > < a name = "l03146" > < / a > < span class = "lineno" > 3146< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayInfoOnVariables()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03147" > < / a > < span class = "lineno" > 3147< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (3)) {< / div >
< div class = "line" > < a name = "l03148" > < / a > < span class = "lineno" > 3148< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03149" > < / a > < span class = "lineno" > 3149< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > variable_value = variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l03150" > < / a > < span class = "lineno" > 3150< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > objective_coefficient = objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03151" > < / a > < span class = "lineno" > 3151< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > objective_contribution =< / div >
< div class = "line" > < a name = "l03152" > < / a > < span class = "lineno" > 3152< / span >   objective_coefficient * variable_value;< / div >
< div class = "line" > < a name = "l03153" > < / a > < span class = "lineno" > 3153< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < SimpleVariableInfo(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) < < < span class = "stringliteral" > " . " < / span > < < variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] < < < span class = "stringliteral" > " = " < / span > < / div >
< div class = "line" > < a name = "l03154" > < / a > < span class = "lineno" > 3154< / span >   < < StringifyWithFlags(variable_value) < < < span class = "stringliteral" > " * " < / span > < / div >
< div class = "line" > < a name = "l03155" > < / a > < span class = "lineno" > 3155< / span >   < < StringifyWithFlags(objective_coefficient)< / div >
< div class = "line" > < a name = "l03156" > < / a > < span class = "lineno" > 3156< / span >   < < < span class = "stringliteral" > " (obj) = " < / span > < < StringifyWithFlags(objective_contribution);< / div >
< div class = "line" > < a name = "l03157" > < / a > < span class = "lineno" > 3157< / span >   }< / div >
< div class = "line" > < a name = "l03158" > < / a > < span class = "lineno" > 3158< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < < span class = "stringliteral" > " ------" < / span > ;< / div >
< div class = "line" > < a name = "l03159" > < / a > < span class = "lineno" > 3159< / span >   }< / div >
< div class = "line" > < a name = "l03160" > < / a > < span class = "lineno" > 3160< / span >   }< / div >
< div class = "line" > < a name = "l03161" > < / a > < span class = "lineno" > 3161< / span >   < / div >
< div class = "line" > < a name = "l03162" > < / a > < span class = "lineno" > 3162< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayVariableBounds() {< / div >
< div class = "line" > < a name = "l03163" > < / a > < span class = "lineno" > 3163< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (3)) {< / div >
< div class = "line" > < a name = "l03164" > < / a > < span class = "lineno" > 3164< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3fe3250e630f7fc5b37f2340ab79c566" > VariableTypeRow< / a > & variable_type = variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > GetTypeRow< / a > ();< / div >
< div class = "line" > < a name = "l03165" > < / a > < span class = "lineno" > 3165< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03166" > < / a > < span class = "lineno" > 3166< / span >   < span class = "keywordflow" > switch< / span > (variable_type[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l03167" > < / a > < span class = "lineno" > 3167< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa2882f30bbca588e5d0e88be217ce75c1" > VariableType::UNCONSTRAINED< / a > :< / div >
< div class = "line" > < a name = "l03168" > < / a > < span class = "lineno" > 3168< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03169" > < / a > < span class = "lineno" > 3169< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa9972b9c8a6068625d6cf1f789f3fd872" > VariableType::LOWER_BOUNDED< / a > :< / div >
< div class = "line" > < a name = "l03170" > < / a > < span class = "lineno" > 3170< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]< / div >
< div class = "line" > < a name = "l03171" > < / a > < span class = "lineno" > 3171< / span >   < < < span class = "stringliteral" > " > = " < / span > < < StringifyWithFlags(lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < < < span class = "stringliteral" > " ;" < / span > ;< / div >
< div class = "line" > < a name = "l03172" > < / a > < span class = "lineno" > 3172< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03173" > < / a > < span class = "lineno" > 3173< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aae7243c883ff6508ee41b3b1339a7e8f1" > VariableType::UPPER_BOUNDED< / a > :< / div >
< div class = "line" > < a name = "l03174" > < / a > < span class = "lineno" > 3174< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]< / div >
< div class = "line" > < a name = "l03175" > < / a > < span class = "lineno" > 3175< / span >   < < < span class = "stringliteral" > " < = " < / span > < < StringifyWithFlags(upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < < < span class = "stringliteral" > " ;" < / span > ;< / div >
2020-11-18 14:53:30 +01:00
< div class = "line" > < a name = "l03176" > < / a > < span class = "lineno" > 3176< / span >   < span class = "keywordflow" > break< / span > ;< / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l03177" > < / a > < span class = "lineno" > 3177< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa62e32b9a6efb029208f576ee123b459f" > VariableType::UPPER_AND_LOWER_BOUNDED< / a > :< / div >
< div class = "line" > < a name = "l03178" > < / a > < span class = "lineno" > 3178< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < StringifyWithFlags(lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ])< / div >
< div class = "line" > < a name = "l03179" > < / a > < span class = "lineno" > 3179< / span >   < < < span class = "stringliteral" > " < = " < / span > < < variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]< / div >
< div class = "line" > < a name = "l03180" > < / a > < span class = "lineno" > 3180< / span >   < < < span class = "stringliteral" > " < = " < / span > < < StringifyWithFlags(upper_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < < < span class = "stringliteral" > " ;" < / span > ;< / div >
< div class = "line" > < a name = "l03181" > < / a > < span class = "lineno" > 3181< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03182" > < / a > < span class = "lineno" > 3182< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aaaa56837dd3f2917e1e13f3173b596103" > VariableType::FIXED_VARIABLE< / a > :< / div >
< div class = "line" > < a name = "l03183" > < / a > < span class = "lineno" > 3183< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] < < < span class = "stringliteral" > " = " < / span > < / div >
< div class = "line" > < a name = "l03184" > < / a > < span class = "lineno" > 3184< / span >   < < StringifyWithFlags(lower_bound_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < < < span class = "stringliteral" > " ;" < / span > ;< / div >
< div class = "line" > < a name = "l03185" > < / a > < span class = "lineno" > 3185< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03186" > < / a > < span class = "lineno" > 3186< / span >   < span class = "keywordflow" > default< / span > : < span class = "comment" > // This should never happen.< / span > < / div >
< div class = "line" > < a name = "l03187" > < / a > < span class = "lineno" > 3187< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (DFATAL) < < < span class = "stringliteral" > " Column " < / span > < < < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < < < span class = "stringliteral" > " has no meaningful status." < / span > ;< / div >
< div class = "line" > < a name = "l03188" > < / a > < span class = "lineno" > 3188< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03189" > < / a > < span class = "lineno" > 3189< / span >   }< / div >
< div class = "line" > < a name = "l03190" > < / a > < span class = "lineno" > 3190< / span >   }< / div >
< div class = "line" > < a name = "l03191" > < / a > < span class = "lineno" > 3191< / span >   }< / div >
< div class = "line" > < a name = "l03192" > < / a > < span class = "lineno" > 3192< / span >   }< / div >
< div class = "line" > < a name = "l03193" > < / a > < span class = "lineno" > 3193< / span >   < / div >
< div class = "line" > < a name = "l03194" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a99f583df870121b972c61d2315ecaa4d" > 3194< / a > < / span >   < a class = "code" href = "classabsl_1_1_strong_vector.html" > absl::StrongVector< RowIndex, SparseRow> < / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a99f583df870121b972c61d2315ecaa4d" > RevisedSimplex::ComputeDictionary< / a > (< / div >
< div class = "line" > < a name = "l03195" > < / a > < span class = "lineno" > 3195< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > * column_scales) {< / div >
< div class = "line" > < a name = "l03196" > < / a > < span class = "lineno" > 3196< / span >   < a class = "code" href = "classabsl_1_1_strong_vector.html" > absl::StrongVector< RowIndex, SparseRow> < / a > dictionary(num_rows_.value());< / div >
< div class = "line" > < a name = "l03197" > < / a > < span class = "lineno" > 3197< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03198" > < / a > < span class = "lineno" > 3198< / span >   ComputeDirection(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l03199" > < / a > < span class = "lineno" > 3199< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > e : direction_) {< / div >
< div class = "line" > < a name = "l03200" > < / a > < span class = "lineno" > 3200< / span >   < span class = "keywordflow" > if< / span > (column_scales == < span class = "keyword" > nullptr< / span > ) {< / div >
< div class = "line" > < a name = "l03201" > < / a > < span class = "lineno" > 3201< / span >   dictionary[e.row()].SetCoefficient(< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , e.coefficient());< / div >
< div class = "line" > < a name = "l03202" > < / a > < span class = "lineno" > 3202< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l03203" > < / a > < span class = "lineno" > 3203< / span >   }< / div >
< div class = "line" > < a name = "l03204" > < / a > < span class = "lineno" > 3204< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > numerator =< / div >
< div class = "line" > < a name = "l03205" > < / a > < span class = "lineno" > 3205< / span >   < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < column_scales-> < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > () ? (*column_scales)[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] : 1.0;< / div >
< div class = "line" > < a name = "l03206" > < / a > < span class = "lineno" > 3206< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > denominator = < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae15a49e0cab69203efca232f0b32866d" > GetBasis< / a > (e.row()) < column_scales-> < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()< / div >
< div class = "line" > < a name = "l03207" > < / a > < span class = "lineno" > 3207< / span >   ? (*column_scales)[< a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae15a49e0cab69203efca232f0b32866d" > GetBasis< / a > (e.row())]< / div >
< div class = "line" > < a name = "l03208" > < / a > < span class = "lineno" > 3208< / span >   : 1.0;< / div >
< div class = "line" > < a name = "l03209" > < / a > < span class = "lineno" > 3209< / span >   dictionary[e.row()].SetCoefficient(< / div >
< div class = "line" > < a name = "l03210" > < / a > < span class = "lineno" > 3210< / span >   < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , direction_[e.row()] * (numerator / denominator));< / div >
< div class = "line" > < a name = "l03211" > < / a > < span class = "lineno" > 3211< / span >   }< / div >
< div class = "line" > < a name = "l03212" > < / a > < span class = "lineno" > 3212< / span >   }< / div >
< div class = "line" > < a name = "l03213" > < / a > < span class = "lineno" > 3213< / span >   < span class = "keywordflow" > return< / span > dictionary;< / div >
< div class = "line" > < a name = "l03214" > < / a > < span class = "lineno" > 3214< / span >   }< / div >
< div class = "line" > < a name = "l03215" > < / a > < span class = "lineno" > 3215< / span >   < / div >
< div class = "line" > < a name = "l03216" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac02fd9d24b56c3a6574d38e571c6a4ff" > 3216< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac02fd9d24b56c3a6574d38e571c6a4ff" > RevisedSimplex::ComputeBasicVariablesForState< / a > (< / div >
< div class = "line" > < a name = "l03217" > < / a > < span class = "lineno" > 3217< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > & linear_program, < span class = "keyword" > const< / span > < a class = "code" href = "structoperations__research_1_1glop_1_1_basis_state.html" > BasisState< / a > & state) {< / div >
< div class = "line" > < a name = "l03218" > < / a > < span class = "lineno" > 3218< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac4d90743acfe39707571f84f096a58d7" > LoadStateForNextSolve< / a > (state);< / div >
< div class = "line" > < a name = "l03219" > < / a > < span class = "lineno" > 3219< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_status.html" > Status< / a > status = Initialize(linear_program);< / div >
< div class = "line" > < a name = "l03220" > < / a > < span class = "lineno" > 3220< / span >   < span class = "keywordflow" > if< / span > (status.< a class = "code" href = "classoperations__research_1_1glop_1_1_status.html#a03cb7eaa663dc83af68bc28a596d09e6" > ok< / a > ()) {< / div >
< div class = "line" > < a name = "l03221" > < / a > < span class = "lineno" > 3221< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > RecomputeBasicVariableValues< / a > ();< / div >
< div class = "line" > < a name = "l03222" > < / a > < span class = "lineno" > 3222< / span >   variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#a9323beaddf591680b191fa618c40519f" > ResetPrimalInfeasibilityInformation< / a > ();< / div >
< div class = "line" > < a name = "l03223" > < / a > < span class = "lineno" > 3223< / span >   solution_objective_value_ = ComputeInitialProblemObjectiveValue();< / div >
< div class = "line" > < a name = "l03224" > < / a > < span class = "lineno" > 3224< / span >   }< / div >
< div class = "line" > < a name = "l03225" > < / a > < span class = "lineno" > 3225< / span >   }< / div >
< div class = "line" > < a name = "l03226" > < / a > < span class = "lineno" > 3226< / span >   < / div >
< div class = "line" > < a name = "l03227" > < / a > < span class = "lineno" > 3227< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayRevisedSimplexDebugInfo() {< / div >
< div class = "line" > < a name = "l03228" > < / a > < span class = "lineno" > 3228< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (3)) {< / div >
< div class = "line" > < a name = "l03229" > < / a > < span class = "lineno" > 3229< / span >   < span class = "comment" > // This function has a complexity in O(num_non_zeros_in_matrix).< / span > < / div >
< div class = "line" > < a name = "l03230" > < / a > < span class = "lineno" > 3230< / span >   DisplayInfoOnVariables();< / div >
< div class = "line" > < a name = "l03231" > < / a > < span class = "lineno" > 3231< / span >   < / div >
< div class = "line" > < a name = "l03232" > < / a > < span class = "lineno" > 3232< / span >   std::string output = < span class = "stringliteral" > " z = " < / span > + StringifyWithFlags(ComputeObjectiveValue());< / div >
< div class = "line" > < a name = "l03233" > < / a > < span class = "lineno" > 3233< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > & reduced_costs = reduced_costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > GetReducedCosts< / a > ();< / div >
< div class = "line" > < a name = "l03234" > < / a > < span class = "lineno" > 3234< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : variables_info_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variables_info.html#a8e726c118c4449d9d3c5761e2853661a" > GetNotBasicBitRow< / a > ()) {< / div >
< div class = "line" > < a name = "l03235" > < / a > < span class = "lineno" > 3235< / span >   absl::StrAppend(& output, StringifyMonomialWithFlags(reduced_costs[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
< div class = "line" > < a name = "l03236" > < / a > < span class = "lineno" > 3236< / span >   variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
< div class = "line" > < a name = "l03237" > < / a > < span class = "lineno" > 3237< / span >   }< / div >
< div class = "line" > < a name = "l03238" > < / a > < span class = "lineno" > 3238< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < output < < < span class = "stringliteral" > " ;" < / span > ;< / div >
2020-12-29 22:27:47 +01:00
< div class = "line" > < a name = "l03239" > < / a > < span class = "lineno" > 3239< / span >   < / div >
2021-02-16 18:34:57 +01:00
< div class = "line" > < a name = "l03240" > < / a > < span class = "lineno" > 3240< / span >   < span class = "keyword" > const< / span > RevisedSimplexDictionary dictionary(< span class = "keyword" > nullptr< / span > , < span class = "keyword" > this< / span > );< / div >
< div class = "line" > < a name = "l03241" > < / a > < span class = "lineno" > 3241< / span >   RowIndex r(0);< / div >
< div class = "line" > < a name = "l03242" > < / a > < span class = "lineno" > 3242< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > SparseRow& < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > : dictionary) {< / div >
< div class = "line" > < a name = "l03243" > < / a > < span class = "lineno" > 3243< / span >   output.clear();< / div >
< div class = "line" > < a name = "l03244" > < / a > < span class = "lineno" > 3244< / span >   ColIndex basic_col = basis_[r];< / div >
< div class = "line" > < a name = "l03245" > < / a > < span class = "lineno" > 3245< / span >   absl::StrAppend(& output, variable_name_[basic_col], < span class = "stringliteral" > " = " < / span > ,< / div >
< div class = "line" > < a name = "l03246" > < / a > < span class = "lineno" > 3246< / span >   StringifyWithFlags(variable_values_.< a class = "code" href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > Get< / a > (basic_col)));< / div >
< div class = "line" > < a name = "l03247" > < / a > < span class = "lineno" > 3247< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > SparseRowEntry e : < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03248" > < / a > < span class = "lineno" > 3248< / span >   < span class = "keywordflow" > if< / span > (e.col() != basic_col) {< / div >
< div class = "line" > < a name = "l03249" > < / a > < span class = "lineno" > 3249< / span >   absl::StrAppend(& output,< / div >
< div class = "line" > < a name = "l03250" > < / a > < span class = "lineno" > 3250< / span >   StringifyMonomialWithFlags(e.coefficient(),< / div >
< div class = "line" > < a name = "l03251" > < / a > < span class = "lineno" > 3251< / span >   variable_name_[e.col()]));< / div >
< div class = "line" > < a name = "l03252" > < / a > < span class = "lineno" > 3252< / span >   }< / div >
< div class = "line" > < a name = "l03253" > < / a > < span class = "lineno" > 3253< / span >   }< / div >
< div class = "line" > < a name = "l03254" > < / a > < span class = "lineno" > 3254< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < output < < < span class = "stringliteral" > " ;" < / span > ;< / div >
< div class = "line" > < a name = "l03255" > < / a > < span class = "lineno" > 3255< / span >   }< / div >
< div class = "line" > < a name = "l03256" > < / a > < span class = "lineno" > 3256< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < < span class = "stringliteral" > " ------" < / span > ;< / div >
< div class = "line" > < a name = "l03257" > < / a > < span class = "lineno" > 3257< / span >   DisplayVariableBounds();< / div >
< div class = "line" > < a name = "l03258" > < / a > < span class = "lineno" > 3258< / span >   ++r;< / div >
< div class = "line" > < a name = "l03259" > < / a > < span class = "lineno" > 3259< / span >   }< / div >
< div class = "line" > < a name = "l03260" > < / a > < span class = "lineno" > 3260< / span >   }< / div >
< div class = "line" > < a name = "l03261" > < / a > < span class = "lineno" > 3261< / span >   < / div >
< div class = "line" > < a name = "l03262" > < / a > < span class = "lineno" > 3262< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::DisplayProblem()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03263" > < / a > < span class = "lineno" > 3263< / span >   < span class = "comment" > // This function has a complexity in O(num_rows * num_cols *< / span > < / div >
< div class = "line" > < a name = "l03264" > < / a > < span class = "lineno" > 3264< / span >   < span class = "comment" > // num_non_zeros_in_row).< / span > < / div >
< div class = "line" > < a name = "l03265" > < / a > < span class = "lineno" > 3265< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > (3)) {< / div >
< div class = "line" > < a name = "l03266" > < / a > < span class = "lineno" > 3266< / span >   DisplayInfoOnVariables();< / div >
< div class = "line" > < a name = "l03267" > < / a > < span class = "lineno" > 3267< / span >   std::string output = < span class = "stringliteral" > " min: " < / span > ;< / div >
< div class = "line" > < a name = "l03268" > < / a > < span class = "lineno" > 3268< / span >   < span class = "keywordtype" > bool< / span > has_objective = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03269" > < / a > < span class = "lineno" > 3269< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03270" > < / a > < span class = "lineno" > 3270< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff = objective_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03271" > < / a > < span class = "lineno" > 3271< / span >   has_objective |= (coeff != 0.0);< / div >
< div class = "line" > < a name = "l03272" > < / a > < span class = "lineno" > 3272< / span >   absl::StrAppend(& output,< / div >
< div class = "line" > < a name = "l03273" > < / a > < span class = "lineno" > 3273< / span >   StringifyMonomialWithFlags(coeff, variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
< div class = "line" > < a name = "l03274" > < / a > < span class = "lineno" > 3274< / span >   }< / div >
< div class = "line" > < a name = "l03275" > < / a > < span class = "lineno" > 3275< / span >   < span class = "keywordflow" > if< / span > (!has_objective) {< / div >
< div class = "line" > < a name = "l03276" > < / a > < span class = "lineno" > 3276< / span >   absl::StrAppend(& output, < span class = "stringliteral" > " 0" < / span > );< / div >
< div class = "line" > < a name = "l03277" > < / a > < span class = "lineno" > 3277< / span >   }< / div >
< div class = "line" > < a name = "l03278" > < / a > < span class = "lineno" > 3278< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < output < < < span class = "stringliteral" > " ;" < / span > ;< / div >
< div class = "line" > < a name = "l03279" > < / a > < span class = "lineno" > 3279< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows_; ++< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03280" > < / a > < span class = "lineno" > 3280< / span >   output = < span class = "stringliteral" > " " < / span > ;< / div >
< div class = "line" > < a name = "l03281" > < / a > < span class = "lineno" > 3281< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols_; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03282" > < / a > < span class = "lineno" > 3282< / span >   absl::StrAppend(& output,< / div >
< div class = "line" > < a name = "l03283" > < / a > < span class = "lineno" > 3283< / span >   StringifyMonomialWithFlags(< / div >
< div class = "line" > < a name = "l03284" > < / a > < span class = "lineno" > 3284< / span >   compact_matrix_.< a class = "code" href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > column< / a > (< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_column_view.html#a289cdc9f094583c1ddd6bdc8cb8b8b96" > LookUpCoefficient< / a > (< a class = "code" href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ),< / div >
< div class = "line" > < a name = "l03285" > < / a > < span class = "lineno" > 3285< / span >   variable_name_[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
< div class = "line" > < a name = "l03286" > < / a > < span class = "lineno" > 3286< / span >   }< / div >
< div class = "line" > < a name = "l03287" > < / a > < span class = "lineno" > 3287< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < output < < < span class = "stringliteral" > " = 0;" < / span > ;< / div >
< div class = "line" > < a name = "l03288" > < / a > < span class = "lineno" > 3288< / span >   }< / div >
< div class = "line" > < a name = "l03289" > < / a > < span class = "lineno" > 3289< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < < span class = "stringliteral" > " ------" < / span > ;< / div >
< div class = "line" > < a name = "l03290" > < / a > < span class = "lineno" > 3290< / span >   }< / div >
< div class = "line" > < a name = "l03291" > < / a > < span class = "lineno" > 3291< / span >   }< / div >
< div class = "line" > < a name = "l03292" > < / a > < span class = "lineno" > 3292< / span >   < / div >
< div class = "line" > < a name = "l03293" > < / a > < span class = "lineno" > 3293< / span >   < span class = "keywordtype" > void< / span > RevisedSimplex::AdvanceDeterministicTime(TimeLimit* < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > ) {< / div >
< div class = "line" > < a name = "l03294" > < / a > < span class = "lineno" > 3294< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l03295" > < / a > < span class = "lineno" > 3295< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > current_deterministic_time = < a class = "code" href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aeccc8138b268e621d96d105e0ddd474a" > DeterministicTime< / a > ();< / div >
< div class = "line" > < a name = "l03296" > < / a > < span class = "lineno" > 3296< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > deterministic_time_delta =< / div >
< div class = "line" > < a name = "l03297" > < / a > < span class = "lineno" > 3297< / span >   current_deterministic_time - last_deterministic_time_update_;< / div >
< div class = "line" > < a name = "l03298" > < / a > < span class = "lineno" > 3298< / span >   < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> AdvanceDeterministicTime(deterministic_time_delta);< / div >
< div class = "line" > < a name = "l03299" > < / a > < span class = "lineno" > 3299< / span >   last_deterministic_time_update_ = current_deterministic_time;< / div >
< div class = "line" > < a name = "l03300" > < / a > < span class = "lineno" > 3300< / span >   }< / div >
< div class = "line" > < a name = "l03301" > < / a > < span class = "lineno" > 3301< / span >   < / div >
< div class = "line" > < a name = "l03302" > < / a > < span class = "lineno" > 3302< / span >   < span class = "preprocessor" > #undef DCHECK_COL_BOUNDS< / span > < / div >
< div class = "line" > < a name = "l03303" > < / a > < span class = "lineno" > 3303< / span >   < span class = "preprocessor" > #undef DCHECK_ROW_BOUNDS< / span > < / div >
< div class = "line" > < a name = "l03304" > < / a > < span class = "lineno" > 3304< / span >   < / div >
< div class = "line" > < a name = "l03305" > < / a > < span class = "lineno" > 3305< / span >   } < span class = "comment" > // namespace glop< / span > < / div >
< div class = "line" > < a name = "l03306" > < / a > < span class = "lineno" > 3306< / span >   } < span class = "comment" > // namespace operations_research< / span > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "aalldiff__cst_8cc_html_a021e695f54a13bd809c34b2f4ca87c37" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37" > min< / a > < / div > < div class = "ttdeci" > int64 min< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00138" > alldiff_cst.cc:138< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aalldiff__cst_8cc_html_a9d0c202d5fdd62f4fa2c613339ff168a" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > max< / a > < / div > < div class = "ttdeci" > int64 max< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00139" > alldiff_cst.cc:139< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html" > < div class = "ttname" > < a href = "base_2logging_8h.html" > logging.h< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274" > < div class = "ttname" > < a href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > < / div > < div class = "ttdeci" > #define CHECK(condition)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00495" > base/logging.h:495< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a4395e95bab44e222cb2e77251017a0e2" > < div class = "ttname" > < a href = "base_2logging_8h.html#a4395e95bab44e222cb2e77251017a0e2" > DCHECK_LE< / a > < / div > < div class = "ttdeci" > #define DCHECK_LE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00887" > base/logging.h:887< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a46e69120fbd3b36e6960e096d23b66f0" > < div class = "ttname" > < a href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > < / div > < div class = "ttdeci" > #define DCHECK_NE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00886" > base/logging.h:886< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_aae2dc65d9ea248d54bf39daa986dd295" > < div class = "ttname" > < a href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > < / div > < div class = "ttdeci" > #define DCHECK_GE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00889" > base/logging.h:889< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ab4f56aa24c4c9cddc47a6abd2d747f9a" > < div class = "ttname" > < a href = "base_2logging_8h.html#ab4f56aa24c4c9cddc47a6abd2d747f9a" > DCHECK_GT< / a > < / div > < div class = "ttdeci" > #define DCHECK_GT(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00890" > base/logging.h:890< / a > < / div > < / div >
2020-11-18 14:53:30 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_ab62f5ed8f2d48e29802be0cbbcd1359a" > < div class = "ttname" > < a href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > < / div > < div class = "ttdeci" > #define DCHECK_LT(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00888" > base/logging.h:888< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_accad43a85d781d53381cd53a9894b6ae" > < div class = "ttname" > < a href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > < / div > < div class = "ttdeci" > #define LOG(severity)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00420" > base/logging.h:420< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006" > < div class = "ttname" > < a href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > < / div > < div class = "ttdeci" > #define DCHECK(condition)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00884" > base/logging.h:884< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ae89df3243bbb8341130c7b3f44145ea0" > < div class = "ttname" > < a href = "base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0" > DCHECK_EQ< / a > < / div > < div class = "ttdeci" > #define DCHECK_EQ(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00885" > base/logging.h:885< / a > < / div > < / div >
2020-11-18 14:53:30 +01:00
< div class = "ttc" id = "abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927" > < div class = "ttname" > < a href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > < / div > < div class = "ttdeci" > #define VLOG(verboselevel)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00978" > base/logging.h:978< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html" > absl::StrongVector< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00076" > strong_vector.h:76< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a644718bb2fb240de962dc3c9a1fdf0dc" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a644718bb2fb240de962dc3c9a1fdf0dc" > absl::StrongVector::empty< / a > < / div > < div class = "ttdeci" > bool empty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00156" > strong_vector.h:156< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_a9263000d449fdccb6cb70b303063e60b" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b" > absl::StrongVector::push_back< / a > < / div > < div class = "ttdeci" > void push_back(const value_type & x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00158" > strong_vector.h:158< / a > < / div > < / div >
< div class = "ttc" id = "aclassabsl_1_1_strong_vector_html_ac8bb3912a3ce86b15842e79d0b421204" > < div class = "ttname" > < a href = "classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > absl::StrongVector::clear< / a > < / div > < div class = "ttdeci" > void clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "strong__vector_8h_source.html#l00170" > strong_vector.h:170< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_bitset64_html_a039b0192ce008be5451bc87ca5eea65c" > < div class = "ttname" > < a href = "classoperations__research_1_1_bitset64.html#a039b0192ce008be5451bc87ca5eea65c" > operations_research::Bitset64::ClearAndResize< / a > < / div > < div class = "ttdeci" > void ClearAndResize(IndexType size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00436" > bitset.h:436< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bitset64_html_a76e58f3dd327215d28ea8c48f8c86009" > < div class = "ttname" > < a href = "classoperations__research_1_1_bitset64.html#a76e58f3dd327215d28ea8c48f8c86009" > operations_research::Bitset64::Set< / a > < / div > < div class = "ttdeci" > void Set(IndexType i)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00491" > bitset.h:491< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_bitset64_html_aa454a4099ee887726b8f5b4a8ed1a81d" > < div class = "ttname" > < a href = "classoperations__research_1_1_bitset64.html#aa454a4099ee887726b8f5b4a8ed1a81d" > operations_research::Bitset64::IsSet< / a > < / div > < div class = "ttdeci" > bool IsSet(IndexType i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bitset_8h_source.html#l00481" > bitset.h:481< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1_stats_group_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1_stats_group.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::StatsGroup::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "stats_8cc_source.html#l00071" > stats.cc:71< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_time_limit_html" > < div class = "ttname" > < a href = "classoperations__research_1_1_time_limit.html" > operations_research::TimeLimit< / a > < / div > < div class = "ttdoc" > A simple class to enforce both an elapsed time limit and a deterministic time limit in the same threa...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "time__limit_8h_source.html#l00105" > time_limit.h:105< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html" > operations_research::glop::BasisFactorization< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8h_source.html#l00151" > basis_representation.h:151< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_a2ac7d8b80f20a8442138b0673aa0158c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a2ac7d8b80f20a8442138b0673aa0158c" > operations_research::glop::BasisFactorization::ComputeInfinityNormConditionNumberUpperBound< / a > < / div > < div class = "ttdeci" > Fractional ComputeInfinityNormConditionNumberUpperBound() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00564" > basis_representation.cc:564< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_a39b7e347f32f4024a988cb93f5e81a2d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a39b7e347f32f4024a988cb93f5e81a2d" > operations_research::glop::BasisFactorization::Refactorize< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status Refactorize()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00216" > basis_representation.cc:216< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_a56d08f5289eea3f018dca5b93b6fca6b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a56d08f5289eea3f018dca5b93b6fca6b" > operations_research::glop::BasisFactorization::GetColumnPermutation< / a > < / div > < div class = "ttdeci" > const ColumnPermutation & GetColumnPermutation() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8h_source.html#l00168" > basis_representation.h:168< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_a697f638cbd5a2dab2977b24e550bd7f9" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a697f638cbd5a2dab2977b24e550bd7f9" > operations_research::glop::BasisFactorization::Initialize< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status Initialize()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00206" > basis_representation.cc:206< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_a6e2a232672ee1580b9144f558662a77c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a6e2a232672ee1580b9144f558662a77c" > operations_research::glop::BasisFactorization::IsRefactorized< / a > < / div > < div class = "ttdeci" > bool IsRefactorized() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00214" > basis_representation.cc:214< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_a87e6110ce2612a27f85e9036afef1599" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#a87e6110ce2612a27f85e9036afef1599" > operations_research::glop::BasisFactorization::Update< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status Update(ColIndex entering_col, RowIndex leaving_variable_row, const ScatteredColumn & direction)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00284" > basis_representation.cc:284< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::glop::BasisFactorization::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00193" > basis_representation.cc:193< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_ab9de0c21968ffad6320a44a010e33e07" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#ab9de0c21968ffad6320a44a010e33e07" > operations_research::glop::BasisFactorization::RightSolveForProblemColumn< / a > < / div > < div class = "ttdeci" > void RightSolveForProblemColumn(ColIndex col, ScatteredColumn *d) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00428" > basis_representation.cc:428< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_ad91a397910de30b87b9fb45298fa5c58" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#ad91a397910de30b87b9fb45298fa5c58" > operations_research::glop::BasisFactorization::SetColumnPermutationToIdentity< / a > < / div > < div class = "ttdeci" > void SetColumnPermutationToIdentity()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8h_source.html#l00176" > basis_representation.h:176< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::BasisFactorization::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8h_source.html#l00158" > basis_representation.h:158< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_aeaeb43840844cc69a88dc924b282b4c7" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aeaeb43840844cc69a88dc924b282b4c7" > operations_research::glop::BasisFactorization::RightSolve< / a > < / div > < div class = "ttdeci" > void RightSolve(ScatteredColumn *d) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00322" > basis_representation.cc:322< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_aeccc8138b268e621d96d105e0ddd474a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aeccc8138b268e621d96d105e0ddd474a" > operations_research::glop::BasisFactorization::DeterministicTime< / a > < / div > < div class = "ttdeci" > double DeterministicTime() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00572" > basis_representation.cc:572< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_aedf255db8741ebb2011757ff37dfc02e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#aedf255db8741ebb2011757ff37dfc02e" > operations_research::glop::BasisFactorization::ForceRefactorization< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status ForceRefactorization()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8cc_source.html#l00221" > basis_representation.cc:221< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_basis_factorization_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_basis_factorization.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::BasisFactorization::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "basis__representation_8h_source.html#l00275" > basis_representation.h:275< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_view_html_a289cdc9f094583c1ddd6bdc8cb8b8b96" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_view.html#a289cdc9f094583c1ddd6bdc8cb8b8b96" > operations_research::glop::ColumnView::LookUpCoefficient< / a > < / div > < div class = "ttdeci" > Fractional LookUpCoefficient(RowIndex index) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00100" > sparse_column.h:100< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_view_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_view.html#a8e12342fc420701fbffd97025421575a" > operations_research::glop::ColumnView::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00114" > sparse_column.h:114< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_view_html_aaef7fc778a29bb3bb3040c0423937f6e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_view.html#aaef7fc778a29bb3bb3040c0423937f6e" > operations_research::glop::ColumnView::EntryCoefficient< / a > < / div > < div class = "ttdeci" > Fractional EntryCoefficient(EntryIndex i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00083" > sparse_column.h:83< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_view_html_ae7c152aafe19515204c65dadcdc876d6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_view.html#ae7c152aafe19515204c65dadcdc876d6" > operations_research::glop::ColumnView::GetFirstCoefficient< / a > < / div > < div class = "ttdeci" > Fractional GetFirstCoefficient() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00086" > sparse_column.h:86< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_view_html_aedc46de5199e203b77de2eae2e4c100d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_view.html#aedc46de5199e203b77de2eae2e4c100d" > operations_research::glop::ColumnView::EntryRow< / a > < / div > < div class = "ttdeci" > RowIndex EntryRow(EntryIndex i) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00089" > sparse_column.h:89< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_view_html_af69d9b7065a8f31604a8134be4307749" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_view.html#af69d9b7065a8f31604a8134be4307749" > operations_research::glop::ColumnView::num_entries< / a > < / div > < div class = "ttdeci" > EntryIndex num_entries() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00082" > sparse_column.h:82< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_a28058c5e9ff6638ea1ea210b49a4e7bc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a28058c5e9ff6638ea1ea210b49a4e7bc" > operations_research::glop::CompactSparseMatrix::ColumnCopyToDenseColumn< / a > < / div > < div class = "ttdeci" > void ColumnCopyToDenseColumn(ColIndex col, DenseColumn *dense_column) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00418" > sparse.h:418< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_a41741829541d089f1c4d34f190884813" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a41741829541d089f1c4d34f190884813" > operations_research::glop::CompactSparseMatrix::num_cols< / a > < / div > < div class = "ttdeci" > ColIndex num_cols() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00345" > sparse.h:345< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_a6e49e4127a33039fcccc6e50380faefa" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a6e49e4127a33039fcccc6e50380faefa" > operations_research::glop::CompactSparseMatrix::ColumnAddMultipleToSparseScatteredColumn< / a > < / div > < div class = "ttdeci" > void ColumnAddMultipleToSparseScatteredColumn(ColIndex col, Fractional multiplier, ScatteredColumn *column) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00405" > sparse.h:405< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_a960110e64357a3e69162ebf1f71959dd" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#a960110e64357a3e69162ebf1f71959dd" > operations_research::glop::CompactSparseMatrix::num_rows< / a > < / div > < div class = "ttdeci" > RowIndex num_rows() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00344" > sparse.h:344< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_ab66e13ab146acabbfaf99ce9f75bf1d2" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#ab66e13ab146acabbfaf99ce9f75bf1d2" > operations_research::glop::CompactSparseMatrix::PopulateFromTranspose< / a > < / div > < div class = "ttdeci" > void PopulateFromTranspose(const CompactSparseMatrix & input)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8cc_source.html#l00456" > sparse.cc:456< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_aea0e9a84b41c95c874f171cae97cf31b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#aea0e9a84b41c95c874f171cae97cf31b" > operations_research::glop::CompactSparseMatrix::ColumnAddMultipleToDenseColumn< / a > < / div > < div class = "ttdeci" > void ColumnAddMultipleToDenseColumn(ColIndex col, Fractional multiplier, DenseColumn *dense_column) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00393" > sparse.h:393< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_aed842e8403e5fc09b23ead11e415d32e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#aed842e8403e5fc09b23ead11e415d32e" > operations_research::glop::CompactSparseMatrix::PopulateFromMatrixView< / a > < / div > < div class = "ttdeci" > void PopulateFromMatrixView(const MatrixView & input)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8cc_source.html#l00437" > sparse.cc:437< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_af69d9b7065a8f31604a8134be4307749" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#af69d9b7065a8f31604a8134be4307749" > operations_research::glop::CompactSparseMatrix::num_entries< / a > < / div > < div class = "ttdeci" > EntryIndex num_entries() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00340" > sparse.h:340< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_compact_sparse_matrix_html_afbe7c81d6b4066bf7874299a0f7c0d59" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_compact_sparse_matrix.html#afbe7c81d6b4066bf7874299a0f7c0d59" > operations_research::glop::CompactSparseMatrix::column< / a > < / div > < div class = "ttdeci" > ColumnView column(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00364" > sparse.h:364< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_a07ecfa8dabb00a7f680dc64efe1127d1" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a07ecfa8dabb00a7f680dc64efe1127d1" > operations_research::glop::DualEdgeNorms::UpdateBeforeBasisPivot< / a > < / div > < div class = "ttdeci" > void UpdateBeforeBasisPivot(ColIndex entering_col, RowIndex leaving_row, const ScatteredColumn & direction, const ScatteredRow & unit_row_left_inverse)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8cc_source.html#l00046" > dual_edge_norms.cc:46< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_a0c2c64e7a26487661db464cb20d4ddfe" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a0c2c64e7a26487661db464cb20d4ddfe" > operations_research::glop::DualEdgeNorms::UpdateDataOnBasisPermutation< / a > < / div > < div class = "ttdeci" > void UpdateDataOnBasisPermutation(const ColumnPermutation & col_perm)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8cc_source.html#l00040" > dual_edge_norms.cc:40< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_a1f1a686f26843ecfeb36e71f7626c330" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a1f1a686f26843ecfeb36e71f7626c330" > operations_research::glop::DualEdgeNorms::GetEdgeSquaredNorms< / a > < / div > < div class = "ttdeci" > const DenseColumn & GetEdgeSquaredNorms()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8cc_source.html#l00035" > dual_edge_norms.cc:35< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_a58d6aa7af2dcdd2a53c98c0f0cef0502" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#a58d6aa7af2dcdd2a53c98c0f0cef0502" > operations_research::glop::DualEdgeNorms::NeedsBasisRefactorization< / a > < / div > < div class = "ttdeci" > bool NeedsBasisRefactorization()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8cc_source.html#l00025" > dual_edge_norms.cc:25< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_aa1eaa31ee29b8635d194762c1eb80962" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#aa1eaa31ee29b8635d194762c1eb80962" > operations_research::glop::DualEdgeNorms::ResizeOnNewRows< / a > < / div > < div class = "ttdeci" > void ResizeOnNewRows(RowIndex new_size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8cc_source.html#l00031" > dual_edge_norms.cc:31< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::glop::DualEdgeNorms::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8cc_source.html#l00029" > dual_edge_norms.cc:29< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::DualEdgeNorms::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8h_source.html#l00087" > dual_edge_norms.h:87< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dual_edge_norms_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dual_edge_norms.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::DualEdgeNorms::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dual__edge__norms_8h_source.html#l00092" > dual_edge_norms.h:92< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_entering_variable_html_a47f0e702c155e2cf5c48d8a9a7d0b434" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_entering_variable.html#a47f0e702c155e2cf5c48d8a9a7d0b434" > operations_research::glop::EnteringVariable::PrimalChooseEnteringColumn< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status PrimalChooseEnteringColumn(ColIndex *entering_col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "entering__variable_8cc_source.html#l00037" > entering_variable.cc:37< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_entering_variable_html_a5f7903563e698189cc516ed6a5496a9a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_entering_variable.html#a5f7903563e698189cc516ed6a5496a9a" > operations_research::glop::EnteringVariable::DualChooseEnteringColumn< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status DualChooseEnteringColumn(const UpdateRow & update_row, Fractional cost_variation, std::vector< ColIndex > *bound_flip_candidates, ColIndex *entering_col, Fractional *step)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "entering__variable_8cc_source.html#l00089" > entering_variable.cc:89< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_entering_variable_html_ab86e98881b35d34abe244a4dd776c7f6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_entering_variable.html#ab86e98881b35d34abe244a4dd776c7f6" > operations_research::glop::EnteringVariable::DualPhaseIChooseEnteringColumn< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status DualPhaseIChooseEnteringColumn(const UpdateRow & update_row, Fractional cost_variation, ColIndex *entering_col, Fractional *step)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "entering__variable_8cc_source.html#l00268" > entering_variable.cc:268< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_entering_variable_html_ad3a8fd026015306e23a8ed6889b48f18" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_entering_variable.html#ad3a8fd026015306e23a8ed6889b48f18" > operations_research::glop::EnteringVariable::SetPricingRule< / a > < / div > < div class = "ttdeci" > void SetPricingRule(GlopParameters::PricingRule rule)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "entering__variable_8cc_source.html#l00376" > entering_variable.cc:376< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_entering_variable_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_entering_variable.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::EnteringVariable::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "entering__variable_8cc_source.html#l00372" > entering_variable.cc:372< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_entering_variable_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_entering_variable.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::EnteringVariable::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "entering__variable_8h_source.html#l00092" > entering_variable.h:92< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html" > operations_research::glop::LinearProgram< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00054" > lp_data.h:54< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a2980fe48a1c9d1d0a792bc343314b9ba" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a2980fe48a1c9d1d0a792bc343314b9ba" > operations_research::glop::LinearProgram::IsInEquationForm< / a > < / div > < div class = "ttdeci" > bool IsInEquationForm() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l01469" > lp_data.cc:1469< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a5e016d204d43b2cc4a2773c25462968a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a5e016d204d43b2cc4a2773c25462968a" > operations_research::glop::LinearProgram::IsCleanedUp< / a > < / div > < div class = "ttdeci" > bool IsCleanedUp() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00353" > lp_data.cc:353< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_accdd045ec09206640c2338524da77d23" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > operations_research::glop::LinearProgram::IsMaximizationProblem< / a > < / div > < div class = "ttdeci" > bool IsMaximizationProblem() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00170" > lp_data.h:170< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_lu_factorization_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_lu_factorization.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::glop::LuFactorization::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lu__factorization_8cc_source.html#l00031" > lu_factorization.cc:31< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_lu_factorization_html_ace58a4f9d6a147c3455ff8dc029537c4" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_lu_factorization.html#ace58a4f9d6a147c3455ff8dc029537c4" > operations_research::glop::LuFactorization::ComputeFactorization< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status ComputeFactorization(const CompactSparseMatrixView & compact_matrix)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lu__factorization_8cc_source.html#l00044" > lu_factorization.cc:44< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_permutation_html_a644718bb2fb240de962dc3c9a1fdf0dc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_permutation.html#a644718bb2fb240de962dc3c9a1fdf0dc" > operations_research::glop::Permutation::empty< / a > < / div > < div class = "ttdeci" > bool empty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2permutation_8h_source.html#l00051" > lp_data/permutation.h:51< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::glop::PrimalEdgeNorms::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8cc_source.html#l00037" > primal_edge_norms.cc:37< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_ac770d9d78b0dda3be3bacb43038170e0" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ac770d9d78b0dda3be3bacb43038170e0" > operations_research::glop::PrimalEdgeNorms::UpdateBeforeBasisPivot< / a > < / div > < div class = "ttdeci" > void UpdateBeforeBasisPivot(ColIndex entering_col, ColIndex leaving_col, RowIndex leaving_row, const ScatteredColumn & direction, UpdateRow *update_row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8cc_source.html#l00086" > primal_edge_norms.cc:86< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_ad3e807537a555d44d5e4a0da13f3768b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ad3e807537a555d44d5e4a0da13f3768b" > operations_research::glop::PrimalEdgeNorms::TestEnteringEdgeNormPrecision< / a > < / div > < div class = "ttdeci" > void TestEnteringEdgeNormPrecision(ColIndex entering_col, const ScatteredColumn & direction)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8cc_source.html#l00062" > primal_edge_norms.cc:62< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::PrimalEdgeNorms::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8h_source.html#l00110" > primal_edge_norms.h:110< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_aeccc8138b268e621d96d105e0ddd474a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#aeccc8138b268e621d96d105e0ddd474a" > operations_research::glop::PrimalEdgeNorms::DeterministicTime< / a > < / div > < div class = "ttdeci" > double DeterministicTime() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8h_source.html#l00118" > primal_edge_norms.h:118< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_af507437729fd1e93677772e748ca1cfc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#af507437729fd1e93677772e748ca1cfc" > operations_research::glop::PrimalEdgeNorms::NeedsBasisRefactorization< / a > < / div > < div class = "ttdeci" > bool NeedsBasisRefactorization() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8cc_source.html#l00043" > primal_edge_norms.cc:43< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_primal_edge_norms_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_primal_edge_norms.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::PrimalEdgeNorms::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "primal__edge__norms_8h_source.html#l00115" > primal_edge_norms.h:115< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a30f0ce948222e17e5992ebd66493316e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a30f0ce948222e17e5992ebd66493316e" > operations_research::glop::ReducedCosts::PerturbCosts< / a > < / div > < div class = "ttdeci" > void PerturbCosts()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00240" > reduced_costs.cc:240< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a385e5d3d11acfdf7a24318aaba18589c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a385e5d3d11acfdf7a24318aaba18589c" > operations_research::glop::ReducedCosts::ResetForNewObjective< / a > < / div > < div class = "ttdeci" > void ResetForNewObjective()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00218" > reduced_costs.cc:218< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a3ec5e60bd3a327da7d43d0d5ba21ab17" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a3ec5e60bd3a327da7d43d0d5ba21ab17" > operations_research::glop::ReducedCosts::ComputeMaximumDualResidual< / a > < / div > < div class = "ttdeci" > Fractional ComputeMaximumDualResidual() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00113" > reduced_costs.cc:113< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a4d2715d1aa0805cc72a6fdd909b575a2" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a4d2715d1aa0805cc72a6fdd909b575a2" > operations_research::glop::ReducedCosts::MakeReducedCostsPrecise< / a > < / div > < div class = "ttdeci" > void MakeReducedCostsPrecise()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00232" > reduced_costs.cc:232< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a5b05974f9610779eea6c8594ed42405c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5b05974f9610779eea6c8594ed42405c" > operations_research::glop::ReducedCosts::AreReducedCostsRecomputed< / a > < / div > < div class = "ttdeci" > bool AreReducedCostsRecomputed()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8h_source.html#l00112" > reduced_costs.h:112< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a5c1aa768eb415af87f5d87c4cec7291e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5c1aa768eb415af87f5d87c4cec7291e" > operations_research::glop::ReducedCosts::TestEnteringReducedCostPrecision< / a > < / div > < div class = "ttdeci" > bool TestEnteringReducedCostPrecision(ColIndex entering_col, const ScatteredColumn & direction, Fractional *reduced_cost)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00058" > reduced_costs.cc:58< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a5fa2e9840a56151a1bd964cb485d4fad" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a5fa2e9840a56151a1bd964cb485d4fad" > operations_research::glop::ReducedCosts::AreReducedCostsPrecise< / a > < / div > < div class = "ttdeci" > bool AreReducedCostsPrecise()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8h_source.html#l00108" > reduced_costs.h:108< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a64f77679a598b14d2c5b6455921fb07b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a64f77679a598b14d2c5b6455921fb07b" > operations_research::glop::ReducedCosts::IsValidPrimalEnteringCandidate< / a > < / div > < div class = "ttdeci" > bool IsValidPrimalEnteringCandidate(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00516" > reduced_costs.cc:516< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a6601cb283594a187e1a513598f3a9b3d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a6601cb283594a187e1a513598f3a9b3d" > operations_research::glop::ReducedCosts::SetNonBasicVariableCostToZero< / a > < / div > < div class = "ttdeci" > void SetNonBasicVariableCostToZero(ColIndex col, Fractional *current_cost)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00206" > reduced_costs.cc:206< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a74fea3dc78cd1ea3532f9959c4abfceb" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a74fea3dc78cd1ea3532f9959c4abfceb" > operations_research::glop::ReducedCosts::SetAndDebugCheckThatColumnIsDualFeasible< / a > < / div > < div class = "ttdeci" > void SetAndDebugCheckThatColumnIsDualFeasible(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00200" > reduced_costs.cc:200< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a9a45fa5802a8fec70bec2fc6f9258056" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9a45fa5802a8fec70bec2fc6f9258056" > operations_research::glop::ReducedCosts::UpdateBeforeBasisPivot< / a > < / div > < div class = "ttdeci" > void UpdateBeforeBasisPivot(ColIndex entering_col, RowIndex leaving_row, const ScatteredColumn & direction, UpdateRow *update_row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00176" > reduced_costs.cc:176< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_a9f7d17ed171863f104fbb2a450f89251" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#a9f7d17ed171863f104fbb2a450f89251" > operations_research::glop::ReducedCosts::GetReducedCosts< / a > < / div > < div class = "ttdeci" > const DenseRow & GetReducedCosts()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00318" > reduced_costs.cc:318< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_aa6a9551b792028d16dc7123c80f429d1" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa6a9551b792028d16dc7123c80f429d1" > operations_research::glop::ReducedCosts::GetDualFeasibilityTolerance< / a > < / div > < div class = "ttdeci" > Fractional GetDualFeasibilityTolerance() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8h_source.html#l00176" > reduced_costs.h:176< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_aa84a93c1b6159eaddded3370f434aae8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aa84a93c1b6159eaddded3370f434aae8" > operations_research::glop::ReducedCosts::ComputeMaximumDualInfeasibility< / a > < / div > < div class = "ttdeci" > Fractional ComputeMaximumDualInfeasibility() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00141" > reduced_costs.cc:141< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_aaa112dadb998636c5ccca0cf93c044f0" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aaa112dadb998636c5ccca0cf93c044f0" > operations_research::glop::ReducedCosts::MaintainDualInfeasiblePositions< / a > < / div > < div class = "ttdeci" > void MaintainDualInfeasiblePositions(bool maintain)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00311" > reduced_costs.cc:311< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_aafa77a9d37843a7c27694231735465bc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#aafa77a9d37843a7c27694231735465bc" > operations_research::glop::ReducedCosts::GetDualValues< / a > < / div > < div class = "ttdeci" > const DenseColumn & GetDualValues()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00324" > reduced_costs.cc:324< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_ab621f81a664a0dc316f158e526dd17d6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ab621f81a664a0dc316f158e526dd17d6" > operations_research::glop::ReducedCosts::ClearAndRemoveCostShifts< / a > < / div > < div class = "ttdeci" > void ClearAndRemoveCostShifts()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00302" > reduced_costs.cc:302< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_ac51f5d5ea0bb75f2f55e836527c43f58" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ac51f5d5ea0bb75f2f55e836527c43f58" > operations_research::glop::ReducedCosts::UpdateDataOnBasisPermutation< / a > < / div > < div class = "ttdeci" > void UpdateDataOnBasisPermutation()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00226" > reduced_costs.cc:226< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::ReducedCosts::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00214" > reduced_costs.cc:214< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_af507437729fd1e93677772e748ca1cfc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#af507437729fd1e93677772e748ca1cfc" > operations_research::glop::ReducedCosts::NeedsBasisRefactorization< / a > < / div > < div class = "ttdeci" > bool NeedsBasisRefactorization() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8cc_source.html#l00054" > reduced_costs.cc:54< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_reduced_costs_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_reduced_costs.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::ReducedCosts::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "reduced__costs_8h_source.html#l00173" > reduced_costs.h:173< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a0e35521f3d40e263173626ecc8c21b06" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a0e35521f3d40e263173626ecc8c21b06" > operations_research::glop::RevisedSimplex::GetDualRayRowCombination< / a > < / div > < div class = "ttdeci" > const DenseRow & GetDualRayRowCombination() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00497" > revised_simplex.cc:497< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a201108c6e8d9fb5104697bdd0a8bd085" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a201108c6e8d9fb5104697bdd0a8bd085" > operations_research::glop::RevisedSimplex::GetVariableValue< / a > < / div > < div class = "ttdeci" > Fractional GetVariableValue(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00447" > revised_simplex.cc:447< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a2638e7353203c8cb214228147a5e504a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a2638e7353203c8cb214228147a5e504a" > operations_research::glop::RevisedSimplex::SetIntegralityScale< / a > < / div > < div class = "ttdeci" > void SetIntegralityScale(ColIndex col, Fractional scale)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l02350" > revised_simplex.cc:2350< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a26689abee13abb7fc0d0cf99c1c7809b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a26689abee13abb7fc0d0cf99c1c7809b" > operations_research::glop::RevisedSimplex::GetReducedCosts< / a > < / div > < div class = "ttdeci" > const DenseRow & GetReducedCosts() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00455" > revised_simplex.cc:455< / a > < / div > < / div >
2020-12-29 22:27:47 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a3269053b931945d67fbd50f3bd95f37f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3269053b931945d67fbd50f3bd95f37f" > operations_research::glop::RevisedSimplex::GetNumberOfIterations< / a > < / div > < div class = "ttdeci" > int64 GetNumberOfIterations() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00441" > revised_simplex.cc:441< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a3854b494976761a458a17523bb4fe5cf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3854b494976761a458a17523bb4fe5cf" > operations_research::glop::RevisedSimplex::GetPrimalRay< / a > < / div > < div class = "ttdeci" > const DenseRow & GetPrimalRay() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00488" > revised_simplex.cc:488< / a > < / div > < / div >
2020-12-29 22:27:47 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a3f6696618f5f850c805b361aa0c8bd7e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a3f6696618f5f850c805b361aa0c8bd7e" > operations_research::glop::RevisedSimplex::GetConstraintActivity< / a > < / div > < div class = "ttdeci" > Fractional GetConstraintActivity(RowIndex row) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00469" > revised_simplex.cc:469< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a4802169fde637478bebd1b420eec8ff8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a4802169fde637478bebd1b420eec8ff8" > operations_research::glop::RevisedSimplex::GetVariableStatus< / a > < / div > < div class = "ttdeci" > VariableStatus GetVariableStatus(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00463" > revised_simplex.cc:463< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a52c80b8028f6d54f8b2c02da3aac7510" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a52c80b8028f6d54f8b2c02da3aac7510" > operations_research::glop::RevisedSimplex::GetReducedCost< / a > < / div > < div class = "ttdeci" > Fractional GetReducedCost(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00451" > revised_simplex.cc:451< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a66da73868da92948f57a83e261066ca6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a66da73868da92948f57a83e261066ca6" > operations_research::glop::RevisedSimplex::GetDualRay< / a > < / div > < div class = "ttdeci" > const DenseColumn & GetDualRay() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00492" > revised_simplex.cc:492< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a866a68af5afd0355fb348f7a59eeff9e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a866a68af5afd0355fb348f7a59eeff9e" > operations_research::glop::RevisedSimplex::Solve< / a > < / div > < div class = "ttdeci" > ABSL_MUST_USE_RESULT Status Solve(const LinearProgram & lp, TimeLimit *time_limit)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00135" > revised_simplex.cc:135< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a938b612b6f9885a417fda1bf886f4b39" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39" > operations_research::glop::RevisedSimplex::GetProblemStatus< / a > < / div > < div class = "ttdeci" > ProblemStatus GetProblemStatus() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00433" > revised_simplex.cc:433< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a96c1f660991b5007ca24564f69cd27b8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a96c1f660991b5007ca24564f69cd27b8" > operations_research::glop::RevisedSimplex::GetObjectiveValue< / a > < / div > < div class = "ttdeci" > Fractional GetObjectiveValue() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00437" > revised_simplex.cc:437< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_a99f583df870121b972c61d2315ecaa4d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#a99f583df870121b972c61d2315ecaa4d" > operations_research::glop::RevisedSimplex::ComputeDictionary< / a > < / div > < div class = "ttdeci" > RowMajorSparseMatrix ComputeDictionary(const DenseRow *column_scales)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l03194" > revised_simplex.cc:3194< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_aa4c5e551e5a00ff4ae97d8467184221b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aa4c5e551e5a00ff4ae97d8467184221b" > operations_research::glop::RevisedSimplex::GetDualValue< / a > < / div > < div class = "ttdeci" > Fractional GetDualValue(RowIndex row) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00459" > revised_simplex.cc:459< / a > < / div > < / div >
2020-12-29 22:27:47 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_aa637d435b14a562f8203eb808add5399" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aa637d435b14a562f8203eb808add5399" > operations_research::glop::RevisedSimplex::NotifyThatMatrixIsUnchangedForNextSolve< / a > < / div > < div class = "ttdeci" > void NotifyThatMatrixIsUnchangedForNextSolve()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00131" > revised_simplex.cc:131< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ab5f355543caf37fcad85bac358d01dbf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ab5f355543caf37fcad85bac358d01dbf" > operations_research::glop::RevisedSimplex::RevisedSimplex< / a > < / div > < div class = "ttdeci" > RevisedSimplex()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00078" > revised_simplex.cc:78< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ac0064327c37c56b93e86a91a1d64fd96" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac0064327c37c56b93e86a91a1d64fd96" > operations_research::glop::RevisedSimplex::GetConstraintStatus< / a > < / div > < div class = "ttdeci" > ConstraintStatus GetConstraintStatus(RowIndex row) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00475" > revised_simplex.cc:475< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ac02fd9d24b56c3a6574d38e571c6a4ff" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac02fd9d24b56c3a6574d38e571c6a4ff" > operations_research::glop::RevisedSimplex::ComputeBasicVariablesForState< / a > < / div > < div class = "ttdeci" > void ComputeBasicVariablesForState(const LinearProgram & linear_program, const BasisState & state)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l03216" > revised_simplex.cc:3216< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ac226833fbf53fdb3fb7b6ef9d89a0e4c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac226833fbf53fdb3fb7b6ef9d89a0e4c" > operations_research::glop::RevisedSimplex::GetProblemNumCols< / a > < / div > < div class = "ttdeci" > ColIndex GetProblemNumCols() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00445" > revised_simplex.cc:445< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ac4d90743acfe39707571f84f096a58d7" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ac4d90743acfe39707571f84f096a58d7" > operations_research::glop::RevisedSimplex::LoadStateForNextSolve< / a > < / div > < div class = "ttdeci" > void LoadStateForNextSolve(const BasisState & state)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00125" > revised_simplex.cc:125< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ace91e968c3b7369698c7563ca1c9c6e8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ace91e968c3b7369698c7563ca1c9c6e8" > operations_research::glop::RevisedSimplex::GetProblemNumRows< / a > < / div > < div class = "ttdeci" > RowIndex GetProblemNumRows() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00443" > revised_simplex.cc:443< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ace96e115f468d752a2fcfeea901b0f8a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ace96e115f468d752a2fcfeea901b0f8a" > operations_research::glop::RevisedSimplex::ClearStateForNextSolve< / a > < / div > < div class = "ttdeci" > void ClearStateForNextSolve()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00120" > revised_simplex.cc:120< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ad463af979d0c220bb473d4f8df2ec345" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ad463af979d0c220bb473d4f8df2ec345" > operations_research::glop::RevisedSimplex::GetBasisFactorization< / a > < / div > < div class = "ttdeci" > const BasisFactorization & GetBasisFactorization() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00504" > revised_simplex.cc:504< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_adfbae19f81ecf38f67643dc8b7dcec25" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#adfbae19f81ecf38f67643dc8b7dcec25" > operations_research::glop::RevisedSimplex::GetState< / a > < / div > < div class = "ttdeci" > const BasisState & GetState() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00467" > revised_simplex.cc:467< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ae15a49e0cab69203efca232f0b32866d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae15a49e0cab69203efca232f0b32866d" > operations_research::glop::RevisedSimplex::GetBasis< / a > < / div > < div class = "ttdeci" > ColIndex GetBasis(RowIndex row) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00502" > revised_simplex.cc:502< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::RevisedSimplex::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l03062" > revised_simplex.cc:3062< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_aeccc8138b268e621d96d105e0ddd474a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#aeccc8138b268e621d96d105e0ddd474a" > operations_research::glop::RevisedSimplex::DeterministicTime< / a > < / div > < div class = "ttdeci" > double DeterministicTime() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00525" > revised_simplex.cc:525< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_revised_simplex_html_afab08c75dbc7618e656f7de9dff4c627" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_revised_simplex.html#afab08c75dbc7618e656f7de9dff4c627" > operations_research::glop::RevisedSimplex::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l03027" > revised_simplex.cc:3027< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_ab38326ea6cb6187267665dd8b2748f3d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > operations_research::glop::SparseVector< RowIndex, SparseColumnIterator > ::Entry< / a > < / div > < div class = "ttdeci" > typename Iterator::Entry Entry< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00091" > sparse_vector.h:91< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_status_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_status.html" > operations_research::glop::Status< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00024" > status.h:24< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_status_html_a03cb7eaa663dc83af68bc28a596d09e6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_status.html#a03cb7eaa663dc83af68bc28a596d09e6" > operations_research::glop::Status::ok< / a > < / div > < div class = "ttdeci" > bool ok() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00059" > status.h:59< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_status_html_a071b1d04197c0ac6e7a4d0ec0b91ff43" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_status.html#a071b1d04197c0ac6e7a4d0ec0b91ff43" > operations_research::glop::Status::OK< / a > < / div > < div class = "ttdeci" > static const Status OK()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00054" > status.h:54< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_status_html_a59e56af19e754a6aa26a612ebf91d05fa79a0e04dceac3db90cc878d11c6cfa55" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_status.html#a59e56af19e754a6aa26a612ebf91d05fa79a0e04dceac3db90cc878d11c6cfa55" > operations_research::glop::Status::ERROR_INVALID_PROBLEM< / a > < / div > < div class = "ttdeci" > @ ERROR_INVALID_PROBLEM< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00041" > status.h:41< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_status_html_a59e56af19e754a6aa26a612ebf91d05fafa2ff9c081445bfbfbda10bc41b76a87" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_status.html#a59e56af19e754a6aa26a612ebf91d05fafa2ff9c081445bfbfbda10bc41b76a87" > operations_research::glop::Status::ERROR_LU< / a > < / div > < div class = "ttdeci" > @ ERROR_LU< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00032" > status.h:32< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > operations_research::glop::StrictITIVector< ColIndex, Fractional > < / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a3de922485ca2c30f3e07d959dd97cdd0" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a3de922485ca2c30f3e07d959dd97cdd0" > operations_research::glop::StrictITIVector::AssignToZero< / a > < / div > < div class = "ttdeci" > void AssignToZero(IntType size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00290" > lp_types.h:290< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a64b6b04f3a519d2c61d49daaa88bf06e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > operations_research::glop::StrictITIVector::resize< / a > < / div > < div class = "ttdeci" > void resize(IntType size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00269" > lp_types.h:269< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a967a5c081ad4195a30c78dc2c0bcabf5" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > operations_research::glop::StrictITIVector::size< / a > < / div > < div class = "ttdeci" > IntType size() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00276" > lp_types.h:276< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_a0c3551dfd558be8edc0bd8d565cfca30" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#a0c3551dfd558be8edc0bd8d565cfca30" > operations_research::glop::UpdateRow::GetUnitRowLeftInverse< / a > < / div > < div class = "ttdeci" > const ScatteredRow & GetUnitRowLeftInverse() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00051" > update_row.cc:51< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_a7b39f45e976b642dac5b652e0a455e8f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#a7b39f45e976b642dac5b652e0a455e8f" > operations_research::glop::UpdateRow::RecomputeFullUpdateRow< / a > < / div > < div class = "ttdeci" > void RecomputeFullUpdateRow(RowIndex leaving_row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00244" > update_row.cc:244< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_a985c788192edce2013ad59d4f0c934cf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#a985c788192edce2013ad59d4f0c934cf" > operations_research::glop::UpdateRow::IgnoreUpdatePosition< / a > < / div > < div class = "ttdeci" > void IgnoreUpdatePosition(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00045" > update_row.cc:45< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_ab9adfea0e765ab447b8ce7730a6cd812" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#ab9adfea0e765ab447b8ce7730a6cd812" > operations_research::glop::UpdateRow::Invalidate< / a > < / div > < div class = "ttdeci" > void Invalidate()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00040" > update_row.cc:40< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_abd6d81960f38fe1a69a153b03e60d47e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#abd6d81960f38fe1a69a153b03e60d47e" > operations_research::glop::UpdateRow::GetCoefficient< / a > < / div > < div class = "ttdeci" > const Fractional GetCoefficient(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8h_source.html#l00066" > update_row.h:66< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_ac9f13d2561598d3a04b409dd7b4e1f0c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#ac9f13d2561598d3a04b409dd7b4e1f0c" > operations_research::glop::UpdateRow::ComputeUpdateRow< / a > < / div > < div class = "ttdeci" > void ComputeUpdateRow(RowIndex leaving_row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00078" > update_row.cc:78< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_ae7202d055b6b172a8a1da4f5b136f9ea" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#ae7202d055b6b172a8a1da4f5b136f9ea" > operations_research::glop::UpdateRow::SetParameters< / a > < / div > < div class = "ttdeci" > void SetParameters(const GlopParameters & parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00174" > update_row.cc:174< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_aeccc8138b268e621d96d105e0ddd474a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#aeccc8138b268e621d96d105e0ddd474a" > operations_research::glop::UpdateRow::DeterministicTime< / a > < / div > < div class = "ttdeci" > double DeterministicTime() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8h_source.html#l00092" > update_row.h:92< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_af8e957f1c8389089554ded7bd2b7b45f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#af8e957f1c8389089554ded7bd2b7b45f" > operations_research::glop::UpdateRow::GetNonZeroPositions< / a > < / div > < div class = "ttdeci" > const ColIndexVector & GetNonZeroPositions() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8cc_source.html#l00170" > update_row.cc:170< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_update_row_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_update_row.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::UpdateRow::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "update__row_8h_source.html#l00081" > update_row.h:81< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a0dd6aa4dbd67b1f7e715b2d6f64341b7" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a0dd6aa4dbd67b1f7e715b2d6f64341b7" > operations_research::glop::VariableValues::Set< / a > < / div > < div class = "ttdeci" > void Set(ColIndex col, Fractional value)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8h_source.html#l00115" > variable_values.h:115< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a102a587506447ec5cba544b93a1877e0" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a102a587506447ec5cba544b93a1877e0" > operations_research::glop::VariableValues::SetNonBasicVariableValueFromStatus< / a > < / div > < div class = "ttdeci" > void SetNonBasicVariableValueFromStatus(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00034" > variable_values.cc:34< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a1472d776e41913b79d4152d87884abde" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a1472d776e41913b79d4152d87884abde" > operations_research::glop::VariableValues::GetPrimalSquaredInfeasibilities< / a > < / div > < div class = "ttdeci" > const DenseColumn & GetPrimalSquaredInfeasibilities() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00218" > variable_values.cc:218< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a198b526739f420eb0959c87c54e036b3" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a198b526739f420eb0959c87c54e036b3" > operations_research::glop::VariableValues::ComputeMaximumPrimalInfeasibility< / a > < / div > < div class = "ttdeci" > Fractional ComputeMaximumPrimalInfeasibility() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00120" > variable_values.cc:120< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a37d6b382d73531413bce6b5d63e624e9" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a37d6b382d73531413bce6b5d63e624e9" > operations_research::glop::VariableValues::UpdateGivenNonBasicVariables< / a > < / div > < div class = "ttdeci" > void UpdateGivenNonBasicVariables(const std::vector< ColIndex > & cols_to_update, bool update_basic_variables)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00167" > variable_values.cc:167< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a3e89d74b50bcd17a7c1a2c6143028d27" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a3e89d74b50bcd17a7c1a2c6143028d27" > operations_research::glop::VariableValues::GetPrimalInfeasiblePositions< / a > < / div > < div class = "ttdeci" > const DenseBitColumn & GetPrimalInfeasiblePositions() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00222" > variable_values.cc:222< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a5619b7a7ea4662832b07ccb00439df47" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a5619b7a7ea4662832b07ccb00439df47" > operations_research::glop::VariableValues::GetDenseRow< / a > < / div > < div class = "ttdeci" > const DenseRow & GetDenseRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8h_source.html#l00050" > variable_values.h:50< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a9323beaddf591680b191fa618c40519f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a9323beaddf591680b191fa618c40519f" > operations_research::glop::VariableValues::ResetPrimalInfeasibilityInformation< / a > < / div > < div class = "ttdeci" > void ResetPrimalInfeasibilityInformation()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00226" > variable_values.cc:226< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_a9808cfe964d67616b5775b0ab113b7aa" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#a9808cfe964d67616b5775b0ab113b7aa" > operations_research::glop::VariableValues::UpdateOnPivoting< / a > < / div > < div class = "ttdeci" > void UpdateOnPivoting(const ScatteredColumn & direction, ColIndex entering_col, Fractional step)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00144" > variable_values.cc:144< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_abb890abf1492b21ed7c136143541dd5a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#abb890abf1492b21ed7c136143541dd5a" > operations_research::glop::VariableValues::Get< / a > < / div > < div class = "ttdeci" > const Fractional Get(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8h_source.html#l00049" > variable_values.h:49< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_ac78d744661f731cec1a48bdfa2513d35" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#ac78d744661f731cec1a48bdfa2513d35" > operations_research::glop::VariableValues::UpdatePrimalInfeasibilityInformation< / a > < / div > < div class = "ttdeci" > void UpdatePrimalInfeasibilityInformation(const std::vector< RowIndex > & rows)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00244" > variable_values.cc:244< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_acb1363c79bda24cb95a41b5550be61f6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#acb1363c79bda24cb95a41b5550be61f6" > operations_research::glop::VariableValues::RecomputeBasicVariableValues< / a > < / div > < div class = "ttdeci" > void RecomputeBasicVariableValues()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00092" > variable_values.cc:92< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_acc064869e181a9ad171a7b5044e9b454" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#acc064869e181a9ad171a7b5044e9b454" > operations_research::glop::VariableValues::ComputeMaximumPrimalResidual< / a > < / div > < div class = "ttdeci" > Fractional ComputeMaximumPrimalResidual() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00108" > variable_values.cc:108< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_adb3b3b75495ee150a1fcc33e58656d22" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#adb3b3b75495ee150a1fcc33e58656d22" > operations_research::glop::VariableValues::UpdatePrimalPhaseICosts< / a > < / div > < div class = "ttdeci" > bool UpdatePrimalPhaseICosts(const Rows & rows, DenseRow *objective)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8h_source.html#l00157" > variable_values.h:157< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_aef157eaaacfc6e27520ad528d5067e25" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#aef157eaaacfc6e27520ad528d5067e25" > operations_research::glop::VariableValues::ResetAllNonBasicVariableValues< / a > < / div > < div class = "ttdeci" > void ResetAllNonBasicVariableValues()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8cc_source.html#l00067" > variable_values.cc:67< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variable_values_html_af9bc435481ae9e6e60d66a65d5394a7f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variable_values.html#af9bc435481ae9e6e60d66a65d5394a7f" > operations_research::glop::VariableValues::StatString< / a > < / div > < div class = "ttdeci" > std::string StatString() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variable__values_8h_source.html#l00118" > variable_values.h:118< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a28ad52f334e030f4eb45939756a4476c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a28ad52f334e030f4eb45939756a4476c" > operations_research::glop::VariablesInfo::GetIsBasicBitRow< / a > < / div > < div class = "ttdeci" > const DenseBitRow & GetIsBasicBitRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00117" > variables_info.cc:117< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a505af340486fcf70ee83abb32e31a628" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a505af340486fcf70ee83abb32e31a628" > operations_research::glop::VariablesInfo::GetNonBasicBoxedVariables< / a > < / div > < div class = "ttdeci" > const DenseBitRow & GetNonBasicBoxedVariables() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00123" > variables_info.cc:123< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a611fb1da73c33e2716b380db980fa825" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a611fb1da73c33e2716b380db980fa825" > operations_research::glop::VariablesInfo::GetBoundDifference< / a > < / div > < div class = "ttdeci" > Fractional GetBoundDifference(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8h_source.html#l00076" > variables_info.h:76< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a6cc56ab5da3a82aa2793d18a37f422c4" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a6cc56ab5da3a82aa2793d18a37f422c4" > operations_research::glop::VariablesInfo::GetCanIncreaseBitRow< / a > < / div > < div class = "ttdeci" > const DenseBitRow & GetCanIncreaseBitRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00105" > variables_info.cc:105< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a71d4734d51e7037c043b68a74bd7857f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a71d4734d51e7037c043b68a74bd7857f" > operations_research::glop::VariablesInfo::GetCanDecreaseBitRow< / a > < / div > < div class = "ttdeci" > const DenseBitRow & GetCanDecreaseBitRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00109" > variables_info.cc:109< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a78146b251b30383686ec55362254cc3b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a78146b251b30383686ec55362254cc3b" > operations_research::glop::VariablesInfo::GetTypeRow< / a > < / div > < div class = "ttdeci" > const VariableTypeRow & GetTypeRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00097" > variables_info.cc:97< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a7aec5aa12d972d66a67d267aa9dd1b97" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a7aec5aa12d972d66a67d267aa9dd1b97" > operations_research::glop::VariablesInfo::MakeBoxedVariableRelevant< / a > < / div > < div class = "ttdeci" > void MakeBoxedVariableRelevant(bool value)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00046" > variables_info.cc:46< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a84dcc462db65072ec3a28b87bb3cd3ad" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a84dcc462db65072ec3a28b87bb3cd3ad" > operations_research::glop::VariablesInfo::UpdateToNonBasicStatus< / a > < / div > < div class = "ttdeci" > void UpdateToNonBasicStatus(ColIndex col, VariableStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00078" > variables_info.cc:78< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a84f09868c621660464ade82b504ba600" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a84f09868c621660464ade82b504ba600" > operations_research::glop::VariablesInfo::InitializeAndComputeType< / a > < / div > < div class = "ttdeci" > void InitializeAndComputeType()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00027" > variables_info.cc:27< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_a8e726c118c4449d9d3c5761e2853661a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#a8e726c118c4449d9d3c5761e2853661a" > operations_research::glop::VariablesInfo::GetNotBasicBitRow< / a > < / div > < div class = "ttdeci" > const DenseBitRow & GetNotBasicBitRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00119" > variables_info.cc:119< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_ab4494c9680fc5d769a6143f11f00423b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#ab4494c9680fc5d769a6143f11f00423b" > operations_research::glop::VariablesInfo::GetStatusRow< / a > < / div > < div class = "ttdeci" > const VariableStatusRow & GetStatusRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00101" > variables_info.cc:101< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_ab717dd0f604f9207435f9ab5336d1113" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#ab717dd0f604f9207435f9ab5336d1113" > operations_research::glop::VariablesInfo::UpdateToBasicStatus< / a > < / div > < div class = "ttdeci" > void UpdateToBasicStatus(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00068" > variables_info.cc:68< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_ac4385751c629a96a6d1ef5ac70af45e1" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#ac4385751c629a96a6d1ef5ac70af45e1" > operations_research::glop::VariablesInfo::GetIsRelevantBitRow< / a > < / div > < div class = "ttdeci" > const DenseBitRow & GetIsRelevantBitRow() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00113" > variables_info.cc:113< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_variables_info_html_ae636e3fb39ec1660660286628306cd15" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_variables_info.html#ae636e3fb39ec1660660286628306cd15" > operations_research::glop::VariablesInfo::Update< / a > < / div > < div class = "ttdeci" > void Update(ColIndex col, VariableStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "variables__info_8cc_source.html#l00060" > variables_info.cc:60< / a > < / div > < / div >
< div class = "ttc" id = "aclassutil_1_1_integer_range_html" > < div class = "ttname" > < a href = "classutil_1_1_integer_range.html" > util::IntegerRange< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "iterators_8h_source.html#l00146" > iterators.h:146< / a > < / div > < / div >
< div class = "ttc" id = "acommandlineflags_8h_html" > < div class = "ttname" > < a href = "commandlineflags_8h.html" > commandlineflags.h< / a > < / div > < / div >
< div class = "ttc" id = "aconstraint__solver_2table_8cc_html_af730895c6c6ef6e03caaf6251192dfd2" > < div class = "ttname" > < a href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > < / div > < div class = "ttdeci" > int64 a< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "constraint__solver_2table_8cc_source.html#l00042" > constraint_solver/table.cc:42< / a > < / div > < / div >
< div class = "ttc" id = "acp__model__fz__solver_8cc_html_a10a1eab179b472c030bdc2a2efef7219" > < div class = "ttname" > < a href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > < / div > < div class = "ttdeci" > SatParameters parameters< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__fz__solver_8cc_source.html#l00108" > cp_model_fz_solver.cc:108< / a > < / div > < / div >
2021-02-26 14:48:18 +01:00
< div class = "ttc" id = "acp__model__solver_8cc_html_ac3cf9db02b23ea1455b5ae6955d03e47" > < div class = "ttname" > < a href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > < / div > < div class = "ttdeci" > SharedTimeLimit * time_limit< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l02116" > cp_model_solver.cc:2116< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "ademon__profiler_8cc_html_a21edc7ca4cc5802c8779d68556bc09cf" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > < / div > < div class = "ttdeci" > int64 value< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00043" > demon_profiler.cc:43< / a > < / div > < / div >
< div class = "ttc" id = "afp__utils_8h_html" > < div class = "ttname" > < a href = "fp__utils_8h.html" > fp_utils.h< / a > < / div > < / div >
< div class = "ttc" id = "ainitial__basis_8h_html" > < div class = "ttname" > < a href = "initial__basis_8h.html" > initial_basis.h< / a > < / div > < / div >
< div class = "ttc" id = "aintegral__types_8h_html" > < div class = "ttname" > < a href = "integral__types_8h.html" > integral_types.h< / a > < / div > < / div >
< div class = "ttc" id = "aintegral__types_8h_html_a7cde0074dfd288f2d70c0e035dacb28a" > < div class = "ttname" > < a href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > < / div > < div class = "ttdeci" > int64_t int64< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integral__types_8h_source.html#l00034" > integral_types.h:34< / a > < / div > < / div >
< div class = "ttc" id = "aintegral__types_8h_html_abc0f5bc07737e498f287334775dff2b6" > < div class = "ttname" > < a href = "integral__types_8h.html#abc0f5bc07737e498f287334775dff2b6" > uint64< / a > < / div > < div class = "ttdeci" > uint64_t uint64< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integral__types_8h_source.html#l00039" > integral_types.h:39< / a > < / div > < / div >
< div class = "ttc" id = "alog__severity_8h_html_a50e5762f38854b37ee3e2851bc1bb0e7" > < div class = "ttname" > < a href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > < / div > < div class = "ttdeci" > const int WARNING< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "log__severity_8h_source.html#l00031" > log_severity.h:31< / a > < / div > < / div >
< div class = "ttc" id = "alog__severity_8h_html_ab4a2cbab234914b320b7fae11b6e8cb9" > < div class = "ttname" > < a href = "log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9" > INFO< / a > < / div > < div class = "ttdeci" > const int INFO< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "log__severity_8h_source.html#l00031" > log_severity.h:31< / a > < / div > < / div >
< div class = "ttc" id = "alp__data_2lp__utils_8h_html" > < div class = "ttname" > < a href = "lp__data_2lp__utils_8h.html" > lp_utils.h< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "alp__data_2permutation_8h_html" > < div class = "ttname" > < a href = "lp__data_2permutation_8h.html" > permutation.h< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "alp__data_8h_html" > < div class = "ttname" > < a href = "lp__data_8h.html" > lp_data.h< / a > < / div > < / div >
< div class = "ttc" id = "alp__print__utils_8h_html" > < div class = "ttname" > < a href = "lp__print__utils_8h.html" > lp_print_utils.h< / a > < / div > < / div >
< div class = "ttc" id = "amacros_8h_html_a7f536a3b33f9bed8f75734e035d30725" > < div class = "ttname" > < a href = "macros_8h.html#a7f536a3b33f9bed8f75734e035d30725" > DEBUG_MODE< / a > < / div > < div class = "ttdeci" > const bool DEBUG_MODE< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "macros_8h_source.html#l00024" > macros.h:24< / a > < / div > < / div >
< div class = "ttc" id = "amarkowitz_8cc_html_aa9d6c98fdf8d89b0e2321fda02adc82c" > < div class = "ttname" > < a href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < / div > < div class = "ttdeci" > ColIndex col< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "markowitz_8cc_source.html#l00176" > markowitz.cc:176< / a > < / div > < / div >
< div class = "ttc" id = "amatrix__utils_8h_html" > < div class = "ttname" > < a href = "matrix__utils_8h.html" > matrix_utils.h< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a093fe5e10e710a17a68c2472f0a69f5e" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a093fe5e10e710a17a68c2472f0a69f5e" > operations_research::glop::StringifyMonomial< / a > < / div > < div class = "ttdeci" > std::string StringifyMonomial(const Fractional a, const std::string & x, bool fraction)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__print__utils_8cc_source.html#l00053" > lp_print_utils.cc:53< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a15dfa7820af8e00b9624297be497f95a" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a15dfa7820af8e00b9624297be497f95a" > operations_research::glop::IsRightMostSquareMatrixIdentity< / a > < / div > < div class = "ttdeci" > bool IsRightMostSquareMatrixIdentity(const SparseMatrix & matrix)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "matrix__utils_8cc_source.html#l00231" > matrix_utils.cc:231< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290c" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > operations_research::glop::VariableStatus< / a > < / div > < div class = "ttdeci" > VariableStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00196" > lp_types.h:196< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > operations_research::glop::VariableStatus::AT_UPPER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_UPPER_BOUND< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > operations_research::glop::VariableStatus::AT_LOWER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_LOWER_BOUND< / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > operations_research::glop::VariableStatus::FREE< / a > < / div > < div class = "ttdeci" > @ FREE< / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > operations_research::glop::VariableStatus::BASIC< / a > < / div > < div class = "ttdeci" > @ BASIC< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > operations_research::glop::VariableStatus::FIXED_VALUE< / a > < / div > < div class = "ttdeci" > @ FIXED_VALUE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1dcd08b0f6c19cd4a302bb5a3a6ea06e" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1dcd08b0f6c19cd4a302bb5a3a6ea06e" > operations_research::glop::Square< / a > < / div > < div class = "ttdeci" > Fractional Square(Fractional f)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00036" > lp_data/lp_utils.h:36< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a2ad7ea612bc859f5b637d5029fb875fb" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a2ad7ea612bc859f5b637d5029fb875fb" > operations_research::glop::InfinityNorm< / a > < / div > < div class = "ttdeci" > Fractional InfinityNorm(const DenseColumn & v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8cc_source.html#l00081" > lp_data/lp_utils.cc:81< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a31ee82f6ef05c3da492c0376f910d015" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > operations_research::glop::kInvalidRow< / a > < / div > < div class = "ttdeci" > const RowIndex kInvalidRow(-1)< / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a36e54e6744a2e1a24f3844f6b5b56044" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a36e54e6744a2e1a24f3844f6b5b56044" > operations_research::glop::Stringify< / a > < / div > < div class = "ttdeci" > std::string Stringify(const Fractional x, bool fraction)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__print__utils_8cc_source.html#l00045" > lp_print_utils.cc:45< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a3fe3250e630f7fc5b37f2340ab79c566" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a3fe3250e630f7fc5b37f2340ab79c566" > operations_research::glop::VariableTypeRow< / a > < / div > < div class = "ttdeci" > StrictITIVector< ColIndex, VariableType > VariableTypeRow< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00317" > lp_types.h:317< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a46fb729c0be27d1b97db15e0ce9c6067" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a46fb729c0be27d1b97db15e0ce9c6067" > operations_research::glop::PreciseScalarProduct< / a > < / div > < div class = "ttdeci" > Fractional PreciseScalarProduct(const DenseRowOrColumn & u, const DenseRowOrColumn2 & v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00092" > lp_data/lp_utils.h:92< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a4dc8ae0f97c4110f3cc770715b2bbd12" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > operations_research::glop::DenseRow< / a > < / div > < div class = "ttdeci" > StrictITIVector< ColIndex, Fractional > DenseRow< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00299" > lp_types.h:299< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a509c4e359e6f7041eddfac3f1c46a92f" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a509c4e359e6f7041eddfac3f1c46a92f" > operations_research::glop::GetProblemStatusString< / a > < / div > < div class = "ttdeci" > std::string GetProblemStatusString(ProblemStatus problem_status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8cc_source.html#l00019" > lp_types.cc:19< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a62b2a1c80c429da3975f1d948f7c27df" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a62b2a1c80c429da3975f1d948f7c27df" > operations_research::glop::ColToIntIndex< / a > < / div > < div class = "ttdeci" > Index ColToIntIndex(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00054" > lp_types.h:54< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a6b1b56ad0cb77edbd314f2bec33b467a" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a6b1b56ad0cb77edbd314f2bec33b467a" > operations_research::glop::ColumnPermutation< / a > < / div > < div class = "ttdeci" > Permutation< ColIndex > ColumnPermutation< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2permutation_8h_source.html#l00095" > lp_data/permutation.h:95< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a6d0540e510c4225b196d87b16f2721a8" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a6d0540e510c4225b196d87b16f2721a8" > operations_research::glop::VariableStatusRow< / a > < / div > < div class = "ttdeci" > StrictITIVector< ColIndex, VariableStatus > VariableStatusRow< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00320" > lp_types.h:320< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a733947145e3e1631165b618b05c9ccb7" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > operations_research::glop::Fractional< / a > < / div > < div class = "ttdeci" > double Fractional< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00077" > lp_types.h:77< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a79a952bdd960fc4d23c32edea03bb8c0" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a79a952bdd960fc4d23c32edea03bb8c0" > operations_research::glop::kDeterministicSeed< / a > < / div > < div class = "ttdeci" > constexpr const uint64 kDeterministicSeed< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00076" > revised_simplex.cc:76< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a8fbc9efd86a3cc862a9079d86ab8b524" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > operations_research::glop::RowToColIndex< / a > < / div > < div class = "ttdeci" > ColIndex RowToColIndex(RowIndex row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00048" > lp_types.h:48< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a95879916d90daeba91c40399ae5ddcc6" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > operations_research::glop::IsFinite< / a > < / div > < div class = "ttdeci" > bool IsFinite(Fractional value)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00090" > lp_types.h:90< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a9f2b788a9c67a4c71cb7e75b54aea27f" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a9f2b788a9c67a4c71cb7e75b54aea27f" > operations_research::glop::AreFirstColumnsAndRowsExactlyEquals< / a > < / div > < div class = "ttdeci" > bool AreFirstColumnsAndRowsExactlyEquals(RowIndex num_rows, ColIndex num_cols, const SparseMatrix & matrix_a, const CompactSparseMatrix & matrix_b)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "matrix__utils_8cc_source.html#l00190" > matrix_utils.cc:190< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_aaa803ce9366dca251925e0bdde517430" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#aaa803ce9366dca251925e0bdde517430" > operations_research::glop::Transpose< / a > < / div > < div class = "ttdeci" > const DenseRow & Transpose(const DenseColumn & col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00192" > lp_data/lp_utils.h:192< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_aaf3efa52c50a245bf2fc964386a15d49" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#aaf3efa52c50a245bf2fc964386a15d49" > operations_research::glop::DenseBitRow< / a > < / div > < div class = "ttdeci" > Bitset64< ColIndex > DenseBitRow< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00323" > lp_types.h:323< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ab7a106449441d3fd61aa70916a147a7d" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ab7a106449441d3fd61aa70916a147a7d" > operations_research::glop::VariableToConstraintStatus< / a > < / div > < div class = "ttdeci" > ConstraintStatus VariableToConstraintStatus(VariableStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8cc_source.html#l00109" > lp_types.cc:109< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ab7ff1f9383648fd132667b1e601229c9" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ab7ff1f9383648fd132667b1e601229c9" > operations_research::glop::ChangeSign< / a > < / div > < div class = "ttdeci" > void ChangeSign(StrictITIVector< IndexType, Fractional > *data)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00300" > lp_data/lp_utils.h:300< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_acfc1d5d5139f63d8c733d4562124866a" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866a" > operations_research::glop::VariableType< / a > < / div > < div class = "ttdeci" > VariableType< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00174" > lp_types.h:174< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_acfc1d5d5139f63d8c733d4562124866aa2882f30bbca588e5d0e88be217ce75c1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa2882f30bbca588e5d0e88be217ce75c1" > operations_research::glop::VariableType::UNCONSTRAINED< / a > < / div > < div class = "ttdeci" > @ UNCONSTRAINED< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_acfc1d5d5139f63d8c733d4562124866aa62e32b9a6efb029208f576ee123b459f" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa62e32b9a6efb029208f576ee123b459f" > operations_research::glop::VariableType::UPPER_AND_LOWER_BOUNDED< / a > < / div > < div class = "ttdeci" > @ UPPER_AND_LOWER_BOUNDED< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_acfc1d5d5139f63d8c733d4562124866aa9972b9c8a6068625d6cf1f789f3fd872" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aa9972b9c8a6068625d6cf1f789f3fd872" > operations_research::glop::VariableType::LOWER_BOUNDED< / a > < / div > < div class = "ttdeci" > @ LOWER_BOUNDED< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_acfc1d5d5139f63d8c733d4562124866aaaa56837dd3f2917e1e13f3173b596103" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aaaa56837dd3f2917e1e13f3173b596103" > operations_research::glop::VariableType::FIXED_VARIABLE< / a > < / div > < div class = "ttdeci" > @ FIXED_VARIABLE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_acfc1d5d5139f63d8c733d4562124866aae7243c883ff6508ee41b3b1339a7e8f1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#acfc1d5d5139f63d8c733d4562124866aae7243c883ff6508ee41b3b1339a7e8f1" > operations_research::glop::VariableType::UPPER_BOUNDED< / a > < / div > < div class = "ttdeci" > @ UPPER_BOUNDED< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > operations_research::glop::ConstraintStatus< / a > < / div > < div class = "ttdeci" > ConstraintStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00227" > lp_types.h:227< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > operations_research::glop::ConstraintStatus::AT_UPPER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_UPPER_BOUND< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > operations_research::glop::ConstraintStatus::AT_LOWER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_LOWER_BOUND< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad73165f71f932e8ccc240d4db5097803" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad73165f71f932e8ccc240d4db5097803" > operations_research::glop::RowToColMapping< / a > < / div > < div class = "ttdeci" > StrictITIVector< RowIndex, ColIndex > RowToColMapping< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00342" > lp_types.h:342< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae073fb72ea53b6d0f3d7f73cfd6c6ed9" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae073fb72ea53b6d0f3d7f73cfd6c6ed9" > operations_research::glop::GetVariableTypeString< / a > < / div > < div class = "ttdeci" > std::string GetVariableTypeString(VariableType variable_type)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8cc_source.html#l00052" > lp_types.cc:52< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae436c0f61edb4f16608010c8bd75a1da" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae436c0f61edb4f16608010c8bd75a1da" > operations_research::glop::ApplyColumnPermutationToRowIndexedVector< / a > < / div > < div class = "ttdeci" > void ApplyColumnPermutationToRowIndexedVector(const Permutation< ColIndex > & col_perm, RowIndexedVector *v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2permutation_8h_source.html#l00116" > lp_data/permutation.h:116< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae5fa9e57c2d31b294195ed8a9e17bfac" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae5fa9e57c2d31b294195ed8a9e17bfac" > operations_research::glop::DenseColumn< / a > < / div > < div class = "ttdeci" > StrictITIVector< RowIndex, Fractional > DenseColumn< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00328" > lp_types.h:328< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > operations_research::glop::ProblemStatus< / a > < / div > < div class = "ttdeci" > ProblemStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00101" > lp_types.h:101< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a0beacd9ca195de65e685252f1b46b954" > operations_research::glop::ProblemStatus::IMPRECISE< / a > < / div > < div class = "ttdeci" > @ IMPRECISE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a1583be76ac58a4ac4c024f73b3d85811" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a1583be76ac58a4ac4c024f73b3d85811" > operations_research::glop::ProblemStatus::DUAL_INFEASIBLE< / a > < / div > < div class = "ttdeci" > @ DUAL_INFEASIBLE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a2dcc8f5d91cb2aa2065b8305bf2d5cbd" > operations_research::glop::ProblemStatus::PRIMAL_FEASIBLE< / a > < / div > < div class = "ttdeci" > @ PRIMAL_FEASIBLE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a57ad14e7a035f33c8ba6c0ea9ea23caa" > operations_research::glop::ProblemStatus::DUAL_FEASIBLE< / a > < / div > < div class = "ttdeci" > @ DUAL_FEASIBLE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a7850fcfea005b86b2a3fa0d4293c5ee0" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a7850fcfea005b86b2a3fa0d4293c5ee0" > operations_research::glop::ProblemStatus::PRIMAL_INFEASIBLE< / a > < / div > < div class = "ttdeci" > @ PRIMAL_INFEASIBLE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a8351cc0ea544c393b3e26fdf42520844" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8351cc0ea544c393b3e26fdf42520844" > operations_research::glop::ProblemStatus::PRIMAL_UNBOUNDED< / a > < / div > < div class = "ttdeci" > @ PRIMAL_UNBOUNDED< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > operations_research::glop::ProblemStatus::ABNORMAL< / a > < / div > < div class = "ttdeci" > @ ABNORMAL< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a8ada5da7749eac0d9fe1782ad9bab585" > operations_research::glop::ProblemStatus::DUAL_UNBOUNDED< / a > < / div > < div class = "ttdeci" > @ DUAL_UNBOUNDED< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > operations_research::glop::ProblemStatus::OPTIMAL< / a > < / div > < div class = "ttdeci" > @ OPTIMAL< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > operations_research::glop::ProblemStatus::INIT< / a > < / div > < div class = "ttdeci" > @ INIT< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_aec7177dd4fab33ada14a7689223fe89f" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#aec7177dd4fab33ada14a7689223fe89f" > operations_research::glop::DenseBooleanColumn< / a > < / div > < div class = "ttdeci" > StrictITIVector< RowIndex, bool > DenseBooleanColumn< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00331" > lp_types.h:331< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_aee749790021783ccc83b2d6abe70c1c0" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#aee749790021783ccc83b2d6abe70c1c0" > operations_research::glop::GetVariableStatusString< / a > < / div > < div class = "ttdeci" > std::string GetVariableStatusString(VariableStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8cc_source.html#l00071" > lp_types.cc:71< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_af9a790b7e8c5b0c6d55b336177378e78" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > operations_research::glop::kInfinity< / a > < / div > < div class = "ttdeci" > const double kInfinity< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00083" > lp_types.h:83< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_afb755b7934d8679476e2f05a89739bcd" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > operations_research::glop::kInvalidCol< / a > < / div > < div class = "ttdeci" > const ColIndex kInvalidCol(-1)< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dense__doubly__linked__list_8h_source.html#l00021" > dense_doubly_linked_list.h:21< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html_ac3308533dde4fc559cab6f4f171d54c9" > < div class = "ttname" > < a href = "namespaceoperations__research.html#ac3308533dde4fc559cab6f4f171d54c9" > operations_research::ScopedTimeDistributionUpdater< / a > < / div > < div class = "ttdeci" > DisabledScopedTimeDistributionUpdater ScopedTimeDistributionUpdater< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "stats_8h_source.html#l00432" > stats.h:432< / a > < / div > < / div >
< div class = "ttc" id = "apack_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0" > < div class = "ttname" > < a href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > < / div > < div class = "ttdeci" > int index< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "pack_8cc_source.html#l00508" > pack.cc:508< / a > < / div > < / div >
< div class = "ttc" id = "aparameters_8pb_8h_html" > < div class = "ttname" > < a href = "parameters_8pb_8h.html" > parameters.pb.h< / a > < / div > < / div >
< div class = "ttc" id = "aparser_8yy_8cc_html_a33e91cd0cef6786e9e3a27ac67707207" > < div class = "ttname" > < a href = "parser_8yy_8cc.html#a33e91cd0cef6786e9e3a27ac67707207" > if< / a > < / div > < div class = "ttdeci" > if(!yyg-> yy_init)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "parser_8yy_8cc_source.html#l00965" > parser.yy.cc:965< / a > < / div > < / div >
< div class = "ttc" id = "areturn__macros_8h_html_a6009315499028d98072d8f31834cf4f9" > < div class = "ttname" > < a href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > < / div > < div class = "ttdeci" > #define RETURN_IF_NULL(x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "return__macros_8h_source.html#l00020" > return_macros.h:20< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "arevised__simplex_8cc_html_a773239be94b6b64ba8fa2367b86776be" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#a773239be94b6b64ba8fa2367b86776be" > coeff_magnitude< / a > < / div > < div class = "ttdeci" > Fractional coeff_magnitude< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l01808" > revised_simplex.cc:1808< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "arevised__simplex_8cc_html_a8806083a7bf6a4ee4a4976c226b93788" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#a8806083a7bf6a4ee4a4976c226b93788" > DCHECK_ROW_BOUNDS< / a > < / div > < div class = "ttdeci" > #define DCHECK_ROW_BOUNDS(row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00070" > revised_simplex.cc:70< / a > < / div > < / div >
< div class = "ttc" id = "arevised__simplex_8cc_html_acbeead810cb856b2daab5362d543d727" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#acbeead810cb856b2daab5362d543d727" > ABSL_FLAG< / a > < / div > < div class = "ttdeci" > ABSL_FLAG(bool, simplex_display_numbers_as_fractions, false, " Display numbers as fractions." )< / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "arevised__simplex_8cc_html_ae985c429ef4bec190816ed836d6cf2c2" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > < / div > < div class = "ttdeci" > Fractional target_bound< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l01809" > revised_simplex.cc:1809< / a > < / div > < / div >
< div class = "ttc" id = "arevised__simplex_8cc_html_aea35f36ba98d5bbd8d033382f50c9e52" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < / div > < div class = "ttdeci" > RowIndex row< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l01806" > revised_simplex.cc:1806< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "arevised__simplex_8cc_html_aedfbeda17580baf879eb030b681ccee1" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#aedfbeda17580baf879eb030b681ccee1" > DCHECK_COL_BOUNDS< / a > < / div > < div class = "ttdeci" > #define DCHECK_COL_BOUNDS(col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l00064" > revised_simplex.cc:64< / a > < / div > < / div >
2021-02-16 18:34:57 +01:00
< div class = "ttc" id = "arevised__simplex_8cc_html_af01c50e388647c921aa7d9c77f2b72b2" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#af01c50e388647c921aa7d9c77f2b72b2" > ratio< / a > < / div > < div class = "ttdeci" > Fractional ratio< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l01807" > revised_simplex.cc:1807< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "arevised__simplex_8h_html" > < div class = "ttname" > < a href = "revised__simplex_8h.html" > revised_simplex.h< / a > < / div > < / div >
< div class = "ttc" id = "arouting__flow_8cc_html_a26a8cbbc7bcf4117c2bf65104b4a54b4" > < div class = "ttname" > < a href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > < / div > < div class = "ttdeci" > int64 cost< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__flow_8cc_source.html#l00130" > routing_flow.cc:130< / a > < / div > < / div >
< div class = "ttc" id = "asearch_8cc_html_a9c6d2505b571d11bc113813060f465a3" > < div class = "ttname" > < a href = "search_8cc.html#a9c6d2505b571d11bc113813060f465a3" > objective_< / a > < / div > < div class = "ttdeci" > IntVar *const objective_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "search_8cc_source.html#l02951" > search.cc:2951< / a > < / div > < / div >
< div class = "ttc" id = "astats_8h_html_a3c3e6b102f0d91c523099325c98e1887" > < div class = "ttname" > < a href = "stats_8h.html#a3c3e6b102f0d91c523099325c98e1887" > IF_STATS_ENABLED< / a > < / div > < div class = "ttdeci" > #define IF_STATS_ENABLED(instructions)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "stats_8h_source.html#l00435" > stats.h:435< / a > < / div > < / div >
< div class = "ttc" id = "astats_8h_html_a9995704aaaf45fc21e08c847551a8d04" > < div class = "ttname" > < a href = "stats_8h.html#a9995704aaaf45fc21e08c847551a8d04" > SCOPED_TIME_STAT< / a > < / div > < div class = "ttdeci" > #define SCOPED_TIME_STAT(stats)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "stats_8h_source.html#l00436" > stats.h:436< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "astatus_8h_html_a3efb1c6250c02a5b881f8b82f75f9822" > < div class = "ttname" > < a href = "status_8h.html#a3efb1c6250c02a5b881f8b82f75f9822" > GLOP_RETURN_IF_ERROR< / a > < / div > < div class = "ttdeci" > #define GLOP_RETURN_IF_ERROR(function_call)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00070" > status.h:70< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "astatus_8h_html_ae9a90d3e61ffae636234f2c1283117d8" > < div class = "ttname" > < a href = "status_8h.html#ae9a90d3e61ffae636234f2c1283117d8" > GLOP_RETURN_ERROR_IF_NULL< / a > < / div > < div class = "ttdeci" > #define GLOP_RETURN_ERROR_IF_NULL(arg)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "status_8h_source.html#l00085" > status.h:85< / a > < / div > < / div >
< div class = "ttc" id = "astrong__vector_8h_html" > < div class = "ttname" > < a href = "strong__vector_8h.html" > strong_vector.h< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_basis_state_html" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_basis_state.html" > operations_research::glop::BasisState< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8h_source.html#l00132" > revised_simplex.h:132< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_basis_state_html_a6cc6941be01d3c765280e09be0246c3f" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f" > operations_research::glop::BasisState::statuses< / a > < / div > < div class = "ttdeci" > VariableStatusRow statuses< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8h_source.html#l00140" > revised_simplex.h:140< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_basis_state_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_basis_state.html#a8e12342fc420701fbffd97025421575a" > operations_research::glop::BasisState::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8h_source.html#l00143" > revised_simplex.h:143< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_scattered_vector_html_a824e6b41b839a9f0ce98b10d3b84046d" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_scattered_vector.html#a824e6b41b839a9f0ce98b10d3b84046d" > operations_research::glop::ScatteredVector::ClearSparseMask< / a > < / div > < div class = "ttdeci" > void ClearSparseMask()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "scattered__vector_8h_source.html#l00132" > scattered_vector.h:132< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_scattered_vector_html_aa01dd1032c527cbadf34ea39a02f799e" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_scattered_vector.html#aa01dd1032c527cbadf34ea39a02f799e" > operations_research::glop::ScatteredVector::ClearNonZerosIfTooDense< / a > < / div > < div class = "ttdeci" > void ClearNonZerosIfTooDense(double ratio_for_using_dense_representation)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "scattered__vector_8h_source.html#l00152" > scattered_vector.h:152< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_scattered_vector_html_ac146d47daa294f7e6546c7569c9c881b" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ac146d47daa294f7e6546c7569c9c881b" > operations_research::glop::ScatteredVector::non_zeros< / a > < / div > < div class = "ttdeci" > std::vector< Index > non_zeros< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "scattered__vector_8h_source.html#l00062" > scattered_vector.h:62< / a > < / div > < / div >
2020-12-29 22:27:47 +01:00
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_scattered_vector_html_ae0473e18a367af671dc3f08063c80da4" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_scattered_vector.html#ae0473e18a367af671dc3f08063c80da4" > operations_research::glop::ScatteredVector::values< / a > < / div > < div class = "ttdeci" > StrictITIVector< Index, Fractional > values< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "scattered__vector_8h_source.html#l00057" > scattered_vector.h:57< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "avlog__is__on_8h_html_a956152cad330225654d128f35c00efce" > < div class = "ttname" > < a href = "vlog__is__on_8h.html#a956152cad330225654d128f35c00efce" > VLOG_IS_ON< / a > < / div > < div class = "ttdeci" > #define VLOG_IS_ON(verboselevel)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "vlog__is__on_8h_source.html#l00041" > vlog_is_on.h:41< / a > < / div > < / div >
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2020-09-02 09:42:51 +02:00
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