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129 lines
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<a href="gscip__solver_8h.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 2010-2021 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">#ifndef OR_TOOLS_MATH_OPT_SOLVERS_GSCIP_SOLVER_H_</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#define OR_TOOLS_MATH_OPT_SOLVERS_GSCIP_SOLVER_H_</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <cstdint></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <memory></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</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="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "absl/container/flat_hash_map.h"</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "absl/container/flat_hash_set.h"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "absl/status/status.h"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "absl/status/statusor.h"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "absl/types/span.h"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "scip/type_cons.h"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "scip/type_var.h"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="gscip_8h.html">ortools/gscip/gscip.h</a>"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="gscip_8pb_8h.html">ortools/gscip/gscip.pb.h</a>"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "ortools/math_opt/callback.pb.h"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "<a class="code" href="solver__interface_8h.html">ortools/math_opt/core/solver_interface.h</a>"</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "ortools/math_opt/model.pb.h"</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "ortools/math_opt/model_parameters.pb.h"</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "ortools/math_opt/model_update.pb.h"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "ortools/math_opt/parameters.pb.h"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "ortools/math_opt/result.pb.h"</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "ortools/math_opt/sparse_containers.pb.h"</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">namespace </span>math_opt {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html"> 44</a></span> <span class="keyword">class </span><a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html">GScipSolver</a> : <span class="keyword">public</span> <a class="code" href="classoperations__research_1_1math__opt_1_1_solver_interface.html">SolverInterface</a> {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">static</span> absl::StatusOr<std::unique_ptr<SolverInterface>> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a960ff60625af78759f2f21115cab7ae1">New</a>(</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> ModelProto& <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, <span class="keyword">const</span> SolverInitializerProto& initializer);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  absl::StatusOr<SolveResultProto> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a7d6731070fee00d91f229e0cff1cfa1b">Solve</a>(</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> SolveParametersProto& <a class="code" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> ModelSolveParametersProto& model_parameters,</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">const</span> CallbackRegistrationProto& callback_registration,</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="classoperations__research_1_1math__opt_1_1_solver_interface.html#ab47a61ca53ae9cdf35dd4f2dfc9ecadb">Callback</a> cb) <span class="keyword">override</span>;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  absl::Status <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a4dc835d3171da48778de1bbea39f8448">Update</a>(<span class="keyword">const</span> ModelUpdateProto& model_update) <span class="keyword">override</span>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a1dcbb1374e91747a2db097361b091c8b">CanUpdate</a>(<span class="keyword">const</span> ModelUpdateProto& model_update) <span class="keyword">override</span>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">static</span> <a class="code" href="classoperations__research_1_1_g_scip_parameters.html">GScipParameters</a> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#acafd442703adb9e98cce59fa8d542777">MergeCommonParameters</a>(</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> CommonSolveParametersProto& common_solver_parameters,</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">const</span> <a class="code" href="classoperations__research_1_1_g_scip_parameters.html">GScipParameters</a>& gscip_parameters);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html">GScipSolver</a>() = <span class="keywordflow">default</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"> 64</span>  absl::Status AddVariables(<span class="keyword">const</span> VariablesProto& variables,</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">const</span> absl::flat_hash_map<int64_t, double>&</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  linear_objective_coefficients);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  absl::Status UpdateVariables(<span class="keyword">const</span> VariableUpdatesProto& variable_updates);</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  absl::Status AddLinearConstraints(</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">const</span> LinearConstraintsProto& linear_constraints,</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">const</span> SparseDoubleMatrixProto& linear_constraint_matrix);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  absl::Status UpdateLinearConstraints(</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> LinearConstraintUpdatesProto linear_constraint_updates,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">const</span> SparseDoubleMatrixProto& linear_constraint_matrix);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  absl::flat_hash_set<SCIP_VAR*> LookupAllVariables(</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  absl::Span<const int64_t> <a class="code" href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a">variable_ids</a>);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">static</span> absl::StatusOr<</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  std::pair<SolveResultProto::TerminationReason, std::string>></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  ConvertTerminationReason(<a class="code" href="namespaceoperations__research.html#adc3b21768529ba10008d6cd8e674e4ee">GScipOutput::Status</a> gscip_status,</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">const</span> std::string& gscip_status_detail,</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordtype">bool</span> has_feasible_solution);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  absl::StatusOr<SolveResultProto> CreateSolveResultProto(</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="structoperations__research_1_1_g_scip_result.html">GScipResult</a> gscip_result,</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">const</span> ModelSolveParametersProto& model_parameters);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  std::unique_ptr<GScip> gscip_;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  absl::flat_hash_map<int64_t, SCIP_VAR*> variables_;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  absl::flat_hash_map<int64_t, SCIP_CONS*> linear_constraints_;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  int64_t next_unused_variable_id_ = 0;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  int64_t next_unused_linear_constraint_id_ = 0;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> };</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> } <span class="comment">// namespace math_opt</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> } <span class="comment">// namespace operations_research</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#endif // OR_TOOLS_MATH_OPT_SOLVERS_GSCIP_SOLVER_H_</span></div><div class="ttc" id="structoperations__research_1_1_g_scip_result_html"><div class="ttname"><a href="structoperations__research_1_1_g_scip_result.html">operations_research::GScipResult</a></div><div class="ttdef"><b>Definition:</b> <a href="gscip_8h_source.html#l00078">gscip.h:78</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_adc3b21768529ba10008d6cd8e674e4ee"><div class="ttname"><a href="namespaceoperations__research.html#adc3b21768529ba10008d6cd8e674e4ee">operations_research::GScipOutput_Status</a></div><div class="ttdeci">GScipOutput_Status</div><div class="ttdef"><b>Definition:</b> <a href="gscip_8pb_8h_source.html#l00162">gscip.pb.h:162</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_g_scip_solver_html_a960ff60625af78759f2f21115cab7ae1"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a960ff60625af78759f2f21115cab7ae1">operations_research::math_opt::GScipSolver::New</a></div><div class="ttdeci">static absl::StatusOr< std::unique_ptr< SolverInterface > > New(const ModelProto &model, const SolverInitializerProto &initializer)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00637">gscip_solver.cc:637</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_g_scip_solver_html"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html">operations_research::math_opt::GScipSolver</a></div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8h_source.html#l00044">gscip_solver.h:44</a></div></div>
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<div class="ttc" id="gurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00274">gurobi_interface.cc:274</a></div></div>
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<div class="ttc" id="integral__types_8h_html"><div class="ttname"><a href="integral__types_8h.html">integral_types.h</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_g_scip_solver_html_a1dcbb1374e91747a2db097361b091c8b"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a1dcbb1374e91747a2db097361b091c8b">operations_research::math_opt::GScipSolver::CanUpdate</a></div><div class="ttdeci">bool CanUpdate(const ModelUpdateProto &model_update) override</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00694">gscip_solver.cc:694</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_solver_interface_html"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_solver_interface.html">operations_research::math_opt::SolverInterface</a></div><div class="ttdef"><b>Definition:</b> <a href="solver__interface_8h_source.html#l00046">solver_interface.h:46</a></div></div>
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<div class="ttc" id="gscip_8pb_8h_html"><div class="ttname"><a href="gscip_8pb_8h.html">gscip.pb.h</a></div></div>
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<div class="ttc" id="classoperations__research_1_1_g_scip_parameters_html"><div class="ttname"><a href="classoperations__research_1_1_g_scip_parameters.html">operations_research::GScipParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="gscip_8pb_8h_source.html#l00358">gscip.pb.h:358</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_solver_interface_html_ab47a61ca53ae9cdf35dd4f2dfc9ecadb"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_solver_interface.html#ab47a61ca53ae9cdf35dd4f2dfc9ecadb">operations_research::math_opt::SolverInterface::Callback</a></div><div class="ttdeci">std::function< absl::StatusOr< CallbackResultProto >(const CallbackDataProto &)> Callback</div><div class="ttdef"><b>Definition:</b> <a href="solver__interface_8h_source.html#l00055">solver_interface.h:55</a></div></div>
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<div class="ttc" id="gscip__solver_8cc_html_a461bf2761c1dc652a0671e5e135b763a"><div class="ttname"><a href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a">variable_ids</a></div><div class="ttdeci">absl::Span< const int64_t > variable_ids</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00128">gscip_solver.cc:128</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_g_scip_solver_html_acafd442703adb9e98cce59fa8d542777"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#acafd442703adb9e98cce59fa8d542777">operations_research::math_opt::GScipSolver::MergeCommonParameters</a></div><div class="ttdeci">static GScipParameters MergeCommonParameters(const CommonSolveParametersProto &common_solver_parameters, const GScipParameters &gscip_parameters)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00394">gscip_solver.cc:394</a></div></div>
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<div class="ttc" id="namespaceoperations__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>
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<div class="ttc" id="cp__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#l00120">cp_model_fz_solver.cc:120</a></div></div>
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