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< a href = "bop__fs_8h.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a id = "l00001" name = "l00001" > < / a > < span class = "lineno" > 1< / span > < span class = "comment" > // Copyright 2010-2021 Google LLC< / span > < / div >
< div class = "line" > < a id = "l00002" 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 id = "l00003" 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 id = "l00004" 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 id = "l00005" name = "l00005" > < / a > < span class = "lineno" > 5< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00006" 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 id = "l00007" name = "l00007" > < / a > < span class = "lineno" > 7< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00008" 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 id = "l00009" 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 id = "l00010" 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 id = "l00011" name = "l00011" > < / a > < span class = "lineno" > 11< / span > < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
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< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "preprocessor" > #ifndef OR_TOOLS_BOP_BOP_FS_H_< / span > < / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < span class = "preprocessor" > #define OR_TOOLS_BOP_BOP_FS_H_< / span > < / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "preprocessor" > #include < cstdint> < / span > < / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < span class = "preprocessor" > #include < string> < / span > < / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < span class = "preprocessor" > #include " < a class = "code" href = "basictypes_8h.html" > ortools/base/basictypes.h< / a > " < / span > < / div >
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< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / 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 id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / 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 id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < span class = "preprocessor" > #include " < a class = "code" href = "bop__base_8h.html" > ortools/bop/bop_base.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < span class = "preprocessor" > #include " ortools/bop/bop_parameters.pb.h" < / span > < / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < span class = "preprocessor" > #include " < a class = "code" href = "bop__solution_8h.html" > ortools/bop/bop_solution.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > < span class = "preprocessor" > #include " < a class = "code" href = "bop__types_8h.html" > ortools/bop/bop_types.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > < span class = "preprocessor" > #include " < a class = "code" href = "bop__util_8h.html" > ortools/bop/bop_util.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < span class = "preprocessor" > #include " < a class = "code" href = "lp__solver_8h.html" > ortools/glop/lp_solver.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < span class = "preprocessor" > #include " ortools/sat/boolean_problem.pb.h" < / span > < / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < span class = "preprocessor" > #include " < a class = "code" href = "sat__solver_8h.html" > ortools/sat/sat_solver.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "preprocessor" > #include " < a class = "code" href = "time__limit_8h.html" > ortools/util/time_limit.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > < / div >
< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > < span class = "keyword" > namespace < / span > < a class = "code hl_namespace" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > < span class = "keyword" > namespace < / span > bop {< / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > 36< / span > < / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > < span class = "comment" > // Tries to find a first solution using SAT and a given assignment preference.< / span > < / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > 38< / span > < span class = "comment" > // This optimizer will never run again once it has found a solution except if< / span > < / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > < span class = "comment" > // the policy is kNotGuided in which case it will be ran again.< / span > < / div >
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html" > 40< / a > < / span > < span class = "keyword" > class < / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html" > GuidedSatFirstSolutionGenerator< / a > : < span class = "keyword" > public< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html" > BopOptimizerBase< / a > {< / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > < span class = "comment" > // The different guiding heuristics< / span > < / div >
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#abb491487def337216dea442161545e72" > 43< / a > < / span > < span class = "keyword" > enum class< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#abb491487def337216dea442161545e72" > Policy< / a > {< / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > 44< / span > kNotGuided, < span class = "comment" > // The default SAT solver.< / span > < / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > kLpGuided, < span class = "comment" > // Guided by the values of the linear relaxation.< / span > < / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > kObjectiveGuided, < span class = "comment" > // Guided by the objective coefficient.< / span > < / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > 47< / span > kUserGuided, < span class = "comment" > // Guided by the problem assignment_preference().< / span > < / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > };< / div >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a3416483a42a835b1803abcfd570b9271" > GuidedSatFirstSolutionGenerator< / a > (< span class = "keyword" > const< / span > std::string& < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a24dcbf29c0d6cd766009a182a6484e3b" > name< / a > , < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#abb491487def337216dea442161545e72" > Policy< / a > policy);< / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a5a32089ec52d7ec29b30e1d164f21f14" > ~GuidedSatFirstSolutionGenerator< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > < / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a333c05e80843ee46f4428d3e6482b17e" > ShouldBeRun< / a > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > 53< / span > < / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > < span class = "comment" > // Note that if the last call to Optimize() returned CONTINUE and if the< / span > < / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > 55< / span > < span class = "comment" > // problem didn' t change, calling this will resume the solve from its last< / span > < / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > < span class = "comment" > // position.< / span > < / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > Status< / a > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a8330ac820f311aab1b9c2c8057cc2c3f" > Optimize< / a > (< span class = "keyword" > const< / span > BopParameters& < a class = "code hl_variable" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ,< / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state, < a class = "code hl_struct" href = "structoperations__research_1_1bop_1_1_learned_info.html" > LearnedInfo< / a > * learned_info,< / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > < a class = "code hl_class" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > < / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > BopOptimizerBase::Status< / a > SynchronizeIfNeeded(< / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state);< / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < / div >
< div class = "line" > < a id = "l00065" name = "l00065" > < / a > < span class = "lineno" > 65< / span > < span class = "keyword" > const< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#abb491487def337216dea442161545e72" > Policy< / a > policy_;< / div >
< div class = "line" > < a id = "l00066" name = "l00066" > < / a > < span class = "lineno" > 66< / span > < span class = "keywordtype" > bool< / span > abort_;< / div >
< div class = "line" > < a id = "l00067" name = "l00067" > < / a > < span class = "lineno" > 67< / span > int64_t state_update_stamp_;< / div >
< div class = "line" > < a id = "l00068" name = "l00068" > < / a > < span class = "lineno" > 68< / span > std::unique_ptr< sat::SatSolver> sat_solver_;< / div >
< div class = "line" > < a id = "l00069" name = "l00069" > < / a > < span class = "lineno" > 69< / span > };< / div >
< div class = "line" > < a id = "l00070" name = "l00070" > < / a > < span class = "lineno" > 70< / span > < / div >
< div class = "line" > < a id = "l00071" name = "l00071" > < / a > < span class = "lineno" > 71< / span > < span class = "comment" > // This class implements an optimizer that tries various random search< / span > < / div >
< div class = "line" > < a id = "l00072" name = "l00072" > < / a > < span class = "lineno" > 72< / span > < span class = "comment" > // strategies, each with a really low conflict limit. It can be used to generate< / span > < / div >
< div class = "line" > < a id = "l00073" name = "l00073" > < / a > < span class = "lineno" > 73< / span > < span class = "comment" > // a first solution or to improve an existing one.< / span > < / div >
< div class = "line" > < a id = "l00074" name = "l00074" > < / a > < span class = "lineno" > 74< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00075" name = "l00075" > < / a > < span class = "lineno" > 75< / span > < span class = "comment" > // By opposition to all the other optimizers, this one doesn' t return right away< / span > < / div >
< div class = "line" > < a id = "l00076" name = "l00076" > < / a > < span class = "lineno" > 76< / span > < span class = "comment" > // when a new solution is found. Instead, it continues to improve it as long as< / span > < / div >
< div class = "line" > < a id = "l00077" name = "l00077" > < / a > < span class = "lineno" > 77< / span > < span class = "comment" > // it has time.< / span > < / div >
< div class = "line" > < a id = "l00078" name = "l00078" > < / a > < span class = "lineno" > 78< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00079" name = "l00079" > < / a > < span class = "lineno" > 79< / span > < span class = "comment" > // TODO(user): Coupled with some Local Search it might be used to diversify< / span > < / div >
< div class = "line" > < a id = "l00080" name = "l00080" > < / a > < span class = "lineno" > 80< / span > < span class = "comment" > // the solutions. To try.< / span > < / div >
< div class = "line" > < a id = "l00081" name = "l00081" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html" > 81< / a > < / span > < span class = "keyword" > class < / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html" > BopRandomFirstSolutionGenerator< / a > : < span class = "keyword" > public< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html" > BopOptimizerBase< / a > {< / div >
< div class = "line" > < a id = "l00082" name = "l00082" > < / a > < span class = "lineno" > 82< / span > < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a id = "l00083" name = "l00083" > < / a > < span class = "lineno" > 83< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#ac557b28493a02092b6e49dd90460f252" > BopRandomFirstSolutionGenerator< / a > (< span class = "keyword" > const< / span > std::string& < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a24dcbf29c0d6cd766009a182a6484e3b" > name< / a > ,< / div >
< div class = "line" > < a id = "l00084" name = "l00084" > < / a > < span class = "lineno" > 84< / span > < span class = "keyword" > const< / span > BopParameters& < a class = "code hl_variable" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ,< / div >
< div class = "line" > < a id = "l00085" name = "l00085" > < / a > < span class = "lineno" > 85< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_sat_solver.html" > sat::SatSolver< / a > * sat_propagator,< / div >
< div class = "line" > < a id = "l00086" name = "l00086" > < / a > < span class = "lineno" > 86< / span > absl::BitGenRef random);< / div >
< div class = "line" > < a id = "l00087" name = "l00087" > < / a > < span class = "lineno" > 87< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#a9790287c83013442016e37457149fa58" > ~BopRandomFirstSolutionGenerator< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a id = "l00088" name = "l00088" > < / a > < span class = "lineno" > 88< / span > < / div >
< div class = "line" > < a id = "l00089" name = "l00089" > < / a > < span class = "lineno" > 89< / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#a333c05e80843ee46f4428d3e6482b17e" > ShouldBeRun< / a > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a id = "l00090" name = "l00090" > < / a > < span class = "lineno" > 90< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > Status< / a > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#a8330ac820f311aab1b9c2c8057cc2c3f" > Optimize< / a > (< span class = "keyword" > const< / span > BopParameters& < a class = "code hl_variable" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ,< / div >
< div class = "line" > < a id = "l00091" name = "l00091" > < / a > < span class = "lineno" > 91< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state, < a class = "code hl_struct" href = "structoperations__research_1_1bop_1_1_learned_info.html" > LearnedInfo< / a > * learned_info,< / div >
< div class = "line" > < a id = "l00092" name = "l00092" > < / a > < span class = "lineno" > 92< / span > < a class = "code hl_class" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a id = "l00093" name = "l00093" > < / a > < span class = "lineno" > 93< / span > < / div >
< div class = "line" > < a id = "l00094" name = "l00094" > < / a > < span class = "lineno" > 94< / span > < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a id = "l00095" name = "l00095" > < / a > < span class = "lineno" > 95< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > BopOptimizerBase::Status< / a > SynchronizeIfNeeded(< / div >
< div class = "line" > < a id = "l00096" name = "l00096" > < / a > < span class = "lineno" > 96< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state);< / div >
< div class = "line" > < a id = "l00097" name = "l00097" > < / a > < span class = "lineno" > 97< / span > < / div >
< div class = "line" > < a id = "l00098" name = "l00098" > < / a > < span class = "lineno" > 98< / span > < span class = "keywordtype" > int< / span > random_seed_;< / div >
< div class = "line" > < a id = "l00099" name = "l00099" > < / a > < span class = "lineno" > 99< / span > absl::BitGenRef random_;< / div >
< div class = "line" > < a id = "l00100" name = "l00100" > < / a > < span class = "lineno" > 100< / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_sat_solver.html" > sat::SatSolver< / a > * sat_propagator_;< / div >
< div class = "line" > < a id = "l00101" name = "l00101" > < / a > < span class = "lineno" > 101< / span > };< / div >
< div class = "line" > < a id = "l00102" name = "l00102" > < / a > < span class = "lineno" > 102< / span > < / div >
< div class = "line" > < a id = "l00103" name = "l00103" > < / a > < span class = "lineno" > 103< / span > < span class = "comment" > // This class computes the linear relaxation of the state problem.< / span > < / div >
< div class = "line" > < a id = "l00104" name = "l00104" > < / a > < span class = "lineno" > 104< / span > < span class = "comment" > // Optimize() fills the relaxed values (possibly floating values) that can be< / span > < / div >
< div class = "line" > < a id = "l00105" name = "l00105" > < / a > < span class = "lineno" > 105< / span > < span class = "comment" > // used by other optimizers as BopSatLpFirstSolutionGenerator for instance,< / span > < / div >
< div class = "line" > < a id = "l00106" name = "l00106" > < / a > < span class = "lineno" > 106< / span > < span class = "comment" > // and the lower bound.< / span > < / div >
< div class = "line" > < a id = "l00107" name = "l00107" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1bop_1_1_linear_relaxation.html" > 107< / a > < / span > < span class = "keyword" > class < / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_linear_relaxation.html" > LinearRelaxation< / a > : < span class = "keyword" > public< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html" > BopOptimizerBase< / a > {< / div >
< div class = "line" > < a id = "l00108" name = "l00108" > < / a > < span class = "lineno" > 108< / span > < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a id = "l00109" name = "l00109" > < / a > < span class = "lineno" > 109< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#a8dcd99fe18446bb871246433178a5235" > LinearRelaxation< / a > (< span class = "keyword" > const< / span > BopParameters& < a class = "code hl_variable" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > , < span class = "keyword" > const< / span > std::string& < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a24dcbf29c0d6cd766009a182a6484e3b" > name< / a > );< / div >
< div class = "line" > < a id = "l00110" name = "l00110" > < / a > < span class = "lineno" > 110< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#ab128c472edf63eacbd2712f97ec55072" > ~LinearRelaxation< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a id = "l00111" name = "l00111" > < / a > < span class = "lineno" > 111< / span > < / div >
< div class = "line" > < a id = "l00112" name = "l00112" > < / a > < span class = "lineno" > 112< / span > < span class = "keywordtype" > bool< / span > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#a333c05e80843ee46f4428d3e6482b17e" > ShouldBeRun< / a > (< span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a id = "l00113" name = "l00113" > < / a > < span class = "lineno" > 113< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > Status< / a > < a class = "code hl_function" href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#a8330ac820f311aab1b9c2c8057cc2c3f" > Optimize< / a > (< span class = "keyword" > const< / span > BopParameters& < a class = "code hl_variable" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ,< / div >
< div class = "line" > < a id = "l00114" name = "l00114" > < / a > < span class = "lineno" > 114< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state, < a class = "code hl_struct" href = "structoperations__research_1_1bop_1_1_learned_info.html" > LearnedInfo< / a > * learned_info,< / div >
< div class = "line" > < a id = "l00115" name = "l00115" > < / a > < span class = "lineno" > 115< / span > < a class = "code hl_class" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a id = "l00116" name = "l00116" > < / a > < span class = "lineno" > 116< / span > < / div >
< div class = "line" > < a id = "l00117" name = "l00117" > < / a > < span class = "lineno" > 117< / span > < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a id = "l00118" name = "l00118" > < / a > < span class = "lineno" > 118< / span > < a class = "code hl_enumeration" href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > BopOptimizerBase::Status< / a > SynchronizeIfNeeded(< / div >
< div class = "line" > < a id = "l00119" name = "l00119" > < / a > < span class = "lineno" > 119< / span > < span class = "keyword" > const< / span > < a class = "code hl_class" href = "classoperations__research_1_1bop_1_1_problem_state.html" > ProblemState< / a > & problem_state);< / div >
< div class = "line" > < a id = "l00120" name = "l00120" > < / a > < span class = "lineno" > 120< / span > < / div >
< div class = "line" > < a id = "l00121" name = "l00121" > < / a > < span class = "lineno" > 121< / span > < span class = "comment" > // Runs Glop to solve the current lp_model_.< / span > < / div >
< div class = "line" > < a id = "l00122" name = "l00122" > < / a > < span class = "lineno" > 122< / span > < span class = "comment" > // Updates the time limit and returns the status of the solve.< / span > < / div >
< div class = "line" > < a id = "l00123" name = "l00123" > < / a > < span class = "lineno" > 123< / span > < span class = "comment" > // Note that when the solve is incremental, the preprocessor is deactivated,< / span > < / div >
< div class = "line" > < a id = "l00124" name = "l00124" > < / a > < span class = "lineno" > 124< / span > < span class = "comment" > // and the dual simplex is used.< / span > < / div >
< div class = "line" > < a id = "l00125" name = "l00125" > < / a > < span class = "lineno" > 125< / span > < a class = "code hl_enumeration" href = "namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493" > glop::ProblemStatus< / a > Solve(< span class = "keywordtype" > bool< / span > incremental_solve, < a class = "code hl_class" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > );< / div >
< div class = "line" > < a id = "l00126" name = "l00126" > < / a > < span class = "lineno" > 126< / span > < / div >
< div class = "line" > < a id = "l00127" name = "l00127" > < / a > < span class = "lineno" > 127< / span > < span class = "comment" > // Computes and returns a better best bound using strong branching, i.e.< / span > < / div >
< div class = "line" > < a id = "l00128" name = "l00128" > < / a > < span class = "lineno" > 128< / span > < span class = "comment" > // doing a what-if analysis on each variable v: compute the best bound when< / span > < / div >
< div class = "line" > < a id = "l00129" name = "l00129" > < / a > < span class = "lineno" > 129< / span > < span class = "comment" > // v is assigned to true, compute the best bound when v is assigned to false,< / span > < / div >
< div class = "line" > < a id = "l00130" name = "l00130" > < / a > < span class = "lineno" > 130< / span > < span class = "comment" > // and then use those best bounds to improve the overall best bound.< / span > < / div >
< div class = "line" > < a id = "l00131" name = "l00131" > < / a > < span class = "lineno" > 131< / span > < span class = "comment" > // As a side effect, it might fix some variables.< / span > < / div >
< div class = "line" > < a id = "l00132" name = "l00132" > < / a > < span class = "lineno" > 132< / span > < span class = "keywordtype" > double< / span > ComputeLowerBoundUsingStrongBranching(< a class = "code hl_struct" href = "structoperations__research_1_1bop_1_1_learned_info.html" > LearnedInfo< / a > * learned_info,< / div >
< div class = "line" > < a id = "l00133" name = "l00133" > < / a > < span class = "lineno" > 133< / span > < a class = "code hl_class" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code hl_variable" href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > );< / div >
< div class = "line" > < a id = "l00134" name = "l00134" > < / a > < span class = "lineno" > 134< / span > < / div >
< div class = "line" > < a id = "l00135" name = "l00135" > < / a > < span class = "lineno" > 135< / span > < span class = "comment" > // Returns true when the cost is worse than the cost of the current solution.< / span > < / div >
< div class = "line" > < a id = "l00136" name = "l00136" > < / a > < span class = "lineno" > 136< / span > < span class = "comment" > // If they are within the given tolerance, returns false.< / span > < / div >
< div class = "line" > < a id = "l00137" name = "l00137" > < / a > < span class = "lineno" > 137< / span > < span class = "keywordtype" > bool< / span > CostIsWorseThanSolution(< span class = "keywordtype" > double< / span > < a class = "code hl_variable" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > , < span class = "keywordtype" > double< / span > tolerance) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a id = "l00138" name = "l00138" > < / a > < span class = "lineno" > 138< / span > < / div >
< div class = "line" > < a id = "l00139" name = "l00139" > < / a > < span class = "lineno" > 139< / span > < span class = "keyword" > const< / span > BopParameters parameters_;< / div >
< div class = "line" > < a id = "l00140" name = "l00140" > < / a > < span class = "lineno" > 140< / span > int64_t state_update_stamp_;< / div >
< div class = "line" > < a id = "l00141" name = "l00141" > < / a > < span class = "lineno" > 141< / span > < span class = "keywordtype" > bool< / span > lp_model_loaded_;< / div >
< div class = "line" > < a id = "l00142" name = "l00142" > < / a > < span class = "lineno" > 142< / span > < span class = "keywordtype" > int< / span > num_full_solves_;< / div >
< div class = "line" > < a id = "l00143" name = "l00143" > < / a > < span class = "lineno" > 143< / span > < a class = "code hl_class" href = "classoperations__research_1_1glop_1_1_linear_program.html" > glop::LinearProgram< / a > lp_model_;< / div >
< div class = "line" > < a id = "l00144" name = "l00144" > < / a > < span class = "lineno" > 144< / span > < a class = "code hl_class" href = "classoperations__research_1_1glop_1_1_l_p_solver.html" > glop::LPSolver< / a > lp_solver_;< / div >
< div class = "line" > < a id = "l00145" name = "l00145" > < / a > < span class = "lineno" > 145< / span > < span class = "keywordtype" > double< / span > scaling_;< / div >
< div class = "line" > < a id = "l00146" name = "l00146" > < / a > < span class = "lineno" > 146< / span > < span class = "keywordtype" > double< / span > offset_;< / div >
< div class = "line" > < a id = "l00147" name = "l00147" > < / a > < span class = "lineno" > 147< / span > < span class = "keywordtype" > int< / span > num_fixed_variables_;< / div >
< div class = "line" > < a id = "l00148" name = "l00148" > < / a > < span class = "lineno" > 148< / span > < span class = "keywordtype" > bool< / span > problem_already_solved_;< / div >
< div class = "line" > < a id = "l00149" name = "l00149" > < / a > < span class = "lineno" > 149< / span > < span class = "keywordtype" > double< / span > scaled_solution_cost_;< / div >
< div class = "line" > < a id = "l00150" name = "l00150" > < / a > < span class = "lineno" > 150< / span > };< / div >
< div class = "line" > < a id = "l00151" name = "l00151" > < / a > < span class = "lineno" > 151< / span > < / div >
< div class = "line" > < a id = "l00152" name = "l00152" > < / a > < span class = "lineno" > 152< / span > } < span class = "comment" > // namespace bop< / span > < / div >
< div class = "line" > < a id = "l00153" name = "l00153" > < / a > < span class = "lineno" > 153< / span > } < span class = "comment" > // namespace operations_research< / span > < / div >
< div class = "line" > < a id = "l00154" name = "l00154" > < / a > < span class = "lineno" > 154< / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > // OR_TOOLS_BOP_BOP_FS_H_< / span > < / div >
2022-01-17 21:42:14 +01:00
< 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 = "abasictypes_8h_html" > < div class = "ttname" > < a href = "basictypes_8h.html" > basictypes.h< / a > < / div > < / div >
< div class = "ttc" id = "abop__base_8h_html" > < div class = "ttname" > < a href = "bop__base_8h.html" > bop_base.h< / a > < / div > < / div >
< div class = "ttc" id = "abop__solution_8h_html" > < div class = "ttname" > < a href = "bop__solution_8h.html" > bop_solution.h< / a > < / div > < / div >
< div class = "ttc" id = "abop__types_8h_html" > < div class = "ttname" > < a href = "bop__types_8h.html" > bop_types.h< / a > < / div > < / div >
< div class = "ttc" id = "abop__util_8h_html" > < div class = "ttname" > < a href = "bop__util_8h.html" > bop_util.h< / 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#l00106" > time_limit.h:106< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_optimizer_base_html" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html" > operations_research::bop::BopOptimizerBase< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__base_8h_source.html#l00043" > bop_base.h:43< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_optimizer_base_html_a24dcbf29c0d6cd766009a182a6484e3b" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a24dcbf29c0d6cd766009a182a6484e3b" > operations_research::bop::BopOptimizerBase::name< / a > < / div > < div class = "ttdeci" > const std::string & name() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__base_8h_source.html#l00049" > bop_base.h:49< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_optimizer_base_html_a67a0db04d321a74b7e7fcfd3f1a3f70b" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_optimizer_base.html#a67a0db04d321a74b7e7fcfd3f1a3f70b" > operations_research::bop::BopOptimizerBase::Status< / a > < / div > < div class = "ttdeci" > Status< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__base_8h_source.html#l00064" > bop_base.h:64< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_random_first_solution_generator_html" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html" > operations_research::bop::BopRandomFirstSolutionGenerator< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8h_source.html#l00081" > bop_fs.h:81< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_random_first_solution_generator_html_a333c05e80843ee46f4428d3e6482b17e" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#a333c05e80843ee46f4428d3e6482b17e" > operations_research::bop::BopRandomFirstSolutionGenerator::ShouldBeRun< / a > < / div > < div class = "ttdeci" > bool ShouldBeRun(const ProblemState & problem_state) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00223" > bop_fs.cc:223< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_random_first_solution_generator_html_a8330ac820f311aab1b9c2c8057cc2c3f" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#a8330ac820f311aab1b9c2c8057cc2c3f" > operations_research::bop::BopRandomFirstSolutionGenerator::Optimize< / a > < / div > < div class = "ttdeci" > Status Optimize(const BopParameters & parameters, const ProblemState & problem_state, LearnedInfo *learned_info, TimeLimit *time_limit) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00228" > bop_fs.cc:228< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_random_first_solution_generator_html_a9790287c83013442016e37457149fa58" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#a9790287c83013442016e37457149fa58" > operations_research::bop::BopRandomFirstSolutionGenerator::~BopRandomFirstSolutionGenerator< / a > < / div > < div class = "ttdeci" > ~BopRandomFirstSolutionGenerator() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00220" > bop_fs.cc:220< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_bop_random_first_solution_generator_html_ac557b28493a02092b6e49dd90460f252" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_bop_random_first_solution_generator.html#ac557b28493a02092b6e49dd90460f252" > operations_research::bop::BopRandomFirstSolutionGenerator::BopRandomFirstSolutionGenerator< / a > < / div > < div class = "ttdeci" > BopRandomFirstSolutionGenerator(const std::string & name, const BopParameters & parameters, sat::SatSolver *sat_propagator, absl::BitGenRef random)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00213" > bop_fs.cc:213< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_guided_sat_first_solution_generator_html" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html" > operations_research::bop::GuidedSatFirstSolutionGenerator< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8h_source.html#l00040" > bop_fs.h:40< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_guided_sat_first_solution_generator_html_a333c05e80843ee46f4428d3e6482b17e" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a333c05e80843ee46f4428d3e6482b17e" > operations_research::bop::GuidedSatFirstSolutionGenerator::ShouldBeRun< / a > < / div > < div class = "ttdeci" > bool ShouldBeRun(const ProblemState & problem_state) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00147" > bop_fs.cc:147< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_guided_sat_first_solution_generator_html_a3416483a42a835b1803abcfd570b9271" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a3416483a42a835b1803abcfd570b9271" > operations_research::bop::GuidedSatFirstSolutionGenerator::GuidedSatFirstSolutionGenerator< / a > < / div > < div class = "ttdeci" > GuidedSatFirstSolutionGenerator(const std::string & name, Policy policy)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00079" > bop_fs.cc:79< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_guided_sat_first_solution_generator_html_a5a32089ec52d7ec29b30e1d164f21f14" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a5a32089ec52d7ec29b30e1d164f21f14" > operations_research::bop::GuidedSatFirstSolutionGenerator::~GuidedSatFirstSolutionGenerator< / a > < / div > < div class = "ttdeci" > ~GuidedSatFirstSolutionGenerator() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00087" > bop_fs.cc:87< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_guided_sat_first_solution_generator_html_a8330ac820f311aab1b9c2c8057cc2c3f" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#a8330ac820f311aab1b9c2c8057cc2c3f" > operations_research::bop::GuidedSatFirstSolutionGenerator::Optimize< / a > < / div > < div class = "ttdeci" > Status Optimize(const BopParameters & parameters, const ProblemState & problem_state, LearnedInfo *learned_info, TimeLimit *time_limit) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00160" > bop_fs.cc:160< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_guided_sat_first_solution_generator_html_abb491487def337216dea442161545e72" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_guided_sat_first_solution_generator.html#abb491487def337216dea442161545e72" > operations_research::bop::GuidedSatFirstSolutionGenerator::Policy< / a > < / div > < div class = "ttdeci" > Policy< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8h_source.html#l00043" > bop_fs.h:43< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_linear_relaxation_html" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_linear_relaxation.html" > operations_research::bop::LinearRelaxation< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8h_source.html#l00107" > bop_fs.h:107< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_linear_relaxation_html_a333c05e80843ee46f4428d3e6482b17e" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#a333c05e80843ee46f4428d3e6482b17e" > operations_research::bop::LinearRelaxation::ShouldBeRun< / a > < / div > < div class = "ttdeci" > bool ShouldBeRun(const ProblemState & problem_state) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00442" > bop_fs.cc:442< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_linear_relaxation_html_a8330ac820f311aab1b9c2c8057cc2c3f" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#a8330ac820f311aab1b9c2c8057cc2c3f" > operations_research::bop::LinearRelaxation::Optimize< / a > < / div > < div class = "ttdeci" > Status Optimize(const BopParameters & parameters, const ProblemState & problem_state, LearnedInfo *learned_info, TimeLimit *time_limit) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00447" > bop_fs.cc:447< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_linear_relaxation_html_a8dcd99fe18446bb871246433178a5235" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#a8dcd99fe18446bb871246433178a5235" > operations_research::bop::LinearRelaxation::LinearRelaxation< / a > < / div > < div class = "ttdeci" > LinearRelaxation(const BopParameters & parameters, const std::string & name)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00343" > bop_fs.cc:343< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_linear_relaxation_html_ab128c472edf63eacbd2712f97ec55072" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_linear_relaxation.html#ab128c472edf63eacbd2712f97ec55072" > operations_research::bop::LinearRelaxation::~LinearRelaxation< / a > < / div > < div class = "ttdeci" > ~LinearRelaxation() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__fs_8cc_source.html#l00358" > bop_fs.cc:358< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1bop_1_1_problem_state_html" > < div class = "ttname" > < a href = "classoperations__research_1_1bop_1_1_problem_state.html" > operations_research::bop::ProblemState< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__base_8h_source.html#l00114" > bop_base.h:114< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_l_p_solver_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_l_p_solver.html" > operations_research::glop::LPSolver< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__solver_8h_source.html#l00030" > lp_solver.h:30< / 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#l00055" > lp_data.h:55< / a > < / div > < / div >
2022-03-04 00:11:33 +01:00
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_sat_solver_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_sat_solver.html" > operations_research::sat::SatSolver< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat__solver_8h_source.html#l00061" > sat_solver.h:61< / 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#l00119" > cp_model_fz_solver.cc:119< / a > < / div > < / div >
< div class = "ttc" id = "acp__model__solver_8cc_html_aec8af5c1be4e1b6d4330e1161028de21" > < div class = "ttname" > < a href = "cp__model__solver_8cc.html#aec8af5c1be4e1b6d4330e1161028de21" > time_limit< / a > < / div > < div class = "ttdeci" > ModelSharedTimeLimit * time_limit< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l02050" > cp_model_solver.cc:2050< / a > < / div > < / div >
2022-01-17 21:42:14 +01:00
< 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 = "alp__solver_8h_html" > < div class = "ttname" > < a href = "lp__solver_8h.html" > lp_solver.h< / a > < / div > < / div >
< div class = "ttc" id = "amacros_8h_html" > < div class = "ttname" > < a href = "macros_8h.html" > macros.h< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493" > operations_research::glop::ProblemStatus< / a > < / div > < div class = "ttdeci" > ProblemStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00102" > lp_types.h:102< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > Collection of objects used to extend the Constraint Solver library.< / 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 = "apreprocessor_8cc_html_a72ecc219428436501225dd42f67c73a9" > < div class = "ttname" > < a href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > < / div > < div class = "ttdeci" > Fractional scaled_cost< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00470" > preprocessor.cc:470< / a > < / div > < / div >
< div class = "ttc" id = "asat__solver_8h_html" > < div class = "ttname" > < a href = "sat__solver_8h.html" > sat_solver.h< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1bop_1_1_learned_info_html" > < div class = "ttname" > < a href = "structoperations__research_1_1bop_1_1_learned_info.html" > operations_research::bop::LearnedInfo< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "bop__base_8h_source.html#l00248" > bop_base.h:248< / a > < / div > < / div >
< div class = "ttc" id = "atime__limit_8h_html" > < div class = "ttname" > < a href = "time__limit_8h.html" > time_limit.h< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
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2020-09-01 16:00:33 +02:00
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