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920 lines
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<div class="title">gscip_solver.cc</div> </div>
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<a href="gscip__solver_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 2010-2021 Google LLC</span></div>
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<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>
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<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>
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<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>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<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>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<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>
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<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>
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<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>
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<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>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "<a class="code" href="gscip__solver_8h.html">ortools/math_opt/solvers/gscip_solver.h</a>"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <functional></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <memory></span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <string></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <utility></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  </div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="integral__types_8h.html">ortools/base/integral_types.h</a>"</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</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="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "absl/container/flat_hash_map.h"</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "absl/container/flat_hash_set.h"</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "absl/memory/memory.h"</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "absl/status/status.h"</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "absl/status/statusor.h"</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "absl/strings/str_cat.h"</span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "absl/strings/string_view.h"</span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "absl/time/clock.h"</span></div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "absl/time/time.h"</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "absl/types/optional.h"</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "absl/types/span.h"</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "scip/type_cons.h"</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "scip/type_var.h"</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "<a class="code" href="map__util_8h.html">ortools/base/map_util.h</a>"</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="gscip_8h.html">ortools/gscip/gscip.h</a>"</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include "<a class="code" href="gscip_8pb_8h.html">ortools/gscip/gscip.pb.h</a>"</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "<a class="code" href="gscip__parameters_8h.html">ortools/gscip/gscip_parameters.h</a>"</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include "ortools/math_opt/callback.pb.h"</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="math__opt__proto__utils_8h.html">ortools/math_opt/math_opt_proto_utils.h</a>"</span></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include "ortools/math_opt/model.pb.h"</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include "ortools/math_opt/model_parameters.pb.h"</span></div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include "ortools/math_opt/model_update.pb.h"</span></div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include "ortools/math_opt/parameters.pb.h"</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include "ortools/math_opt/result.pb.h"</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include "ortools/math_opt/solution.pb.h"</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include "<a class="code" href="solver__interface_8h.html">ortools/math_opt/solver_interface.h</a>"</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include "<a class="code" href="gscip__solver__callback_8h.html">ortools/math_opt/solvers/gscip_solver_callback.h</a>"</span></div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include "ortools/math_opt/sparse_containers.pb.h"</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include "<a class="code" href="sparse__vector__view_8h.html">ortools/math_opt/sparse_vector_view.h</a>"</span></div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#include "<a class="code" href="port_2proto__utils_8h.html">ortools/port/proto_utils.h</a>"</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#include "absl/status/status.h"</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#include "<a class="code" href="status__macros_8h.html">ortools/base/status_macros.h</a>"</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#include "<a class="code" href="protoutil_8h.html">ortools/base/protoutil.h</a>"</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="keyword">namespace </span>math_opt {</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">namespace </span>{</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> int64_t SafeId(<span class="keyword">const</span> VariablesProto& variables, <span class="keywordtype">int</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (variables.ids().empty()) {</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>;</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> variables.ids(<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  </div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">const</span> std::string& EmptyString() {</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::string* <span class="keyword">const</span> empty_string = <span class="keyword">new</span> std::string;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> *empty_string;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> }</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">const</span> std::string& SafeName(<span class="keyword">const</span> VariablesProto& variables, <span class="keywordtype">int</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span> (variables.names().empty()) {</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> EmptyString();</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> variables.names(<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>);</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> int64_t SafeId(<span class="keyword">const</span> LinearConstraintsProto& linear_constraints, <span class="keywordtype">int</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> (linear_constraints.ids().empty()) {</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>;</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> linear_constraints.ids(<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>);</div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">const</span> std::string& SafeName(<span class="keyword">const</span> LinearConstraintsProto& linear_constraints,</div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordtype">int</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (linear_constraints.names().empty()) {</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> EmptyString();</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> linear_constraints.names(<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>);</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> absl::flat_hash_map<int64_t, double> SparseDoubleVectorAsMap(</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">const</span> SparseDoubleVectorProto& vector) {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(vector.ids_size(), vector.values_size());</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  absl::flat_hash_map<int64_t, double> result;</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  result.reserve(vector.ids_size());</div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < vector.ids_size(); ++i) {</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  result[vector.ids(i)] = vector.values(i);</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// Viewing matrix as a list of (row, column, value) tuples stored in row major</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// order, does a linear scan from index scan_start to find the index of the</span></div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">// first entry with row >= row_id. Returns the size the tuple list if there is</span></div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment">// no such entry.</span></div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> FindRowStart(<span class="keyword">const</span> SparseDoubleMatrixProto& matrix, <span class="keyword">const</span> <span class="keywordtype">int</span> row_id,</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> scan_start) {</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">int</span> result = scan_start;</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">while</span> (result < matrix.row_ids_size() && matrix.row_ids(result) < row_id) {</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  ++result;</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">struct </span>LinearConstraintView {</div>
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<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="gscip__solver_8cc.html#a1b69e9b6927ad6890c586977105d79f5"> 124</a></span>  int64_t <a class="code" href="gscip__solver_8cc.html#a1b69e9b6927ad6890c586977105d79f5">linear_constraint_id</a>;</div>
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<div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec"> 125</a></span>  <span class="keywordtype">double</span> <a class="code" href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a>;</div>
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<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35"> 126</a></span>  <span class="keywordtype">double</span> <a class="code" href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a>;</div>
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<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="gscip__solver_8cc.html#a82e2a7e0f28d620da677073b6b24574b"> 127</a></span>  absl::string_view <a class="code" href="gscip__solver_8cc.html#a82e2a7e0f28d620da677073b6b24574b">name</a>;</div>
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<div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a"> 128</a></span>  absl::Span<const int64_t> <a class="code" href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a">variable_ids</a>;</div>
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<div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="gscip__solver_8cc.html#aa59e74cc299dbf75fa6e2234dd0849a2"> 129</a></span>  absl::Span<const double> <a class="code" href="gscip__solver_8cc.html#aa59e74cc299dbf75fa6e2234dd0849a2">coefficients</a>;</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> };</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// Iterates over the constraints from a LinearConstraints, outputting a</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// LinearConstraintView for each constraint. Requires a SparseDoubleMatrixProto</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment">// which may have data from additional constraints not in LinearConstraints.</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// The running time to iterate through and read each element once is</span></div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// O(Size(*linear_constraints) + Size(*linear_constraint_matrix)).</span></div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">class </span>LinearConstraintIterator {</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  LinearConstraintIterator(</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">const</span> LinearConstraintsProto* linear_constraints,</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">const</span> SparseDoubleMatrixProto* linear_constraint_matrix)</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  : linear_constraints_(<a class="code" href="base_2logging_8h.html#aeef651f886eb5252c08835194213efe2">ABSL_DIE_IF_NULL</a>(linear_constraints)),</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  linear_constraint_matrix_(<a class="code" href="base_2logging_8h.html#aeef651f886eb5252c08835194213efe2">ABSL_DIE_IF_NULL</a>(linear_constraint_matrix)) {</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceoperations__research_1_1math__opt.html#a98600a28f0f805ae0cbe04802b0dcbc4">NumConstraints</a>(*linear_constraints_) > 0) {</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">const</span> int64_t first_constraint = SafeId(*linear_constraints_, 0);</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  matrix_start_ =</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  FindRowStart(*linear_constraint_matrix_, first_constraint, 0);</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  matrix_end_ = FindRowStart(*linear_constraint_matrix_,</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  first_constraint + 1, matrix_start_);</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  } <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  matrix_start_ = <a class="code" href="namespaceoperations__research_1_1math__opt.html#a1c3bab427ac8280d7b32019b88ec59b4">NumMatrixNonzeros</a>(*linear_constraint_matrix_);</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  matrix_end_ = matrix_start_;</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordtype">bool</span> IsDone()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> current_con_ >= <a class="code" href="namespaceoperations__research_1_1math__opt.html#a98600a28f0f805ae0cbe04802b0dcbc4">NumConstraints</a>(*linear_constraints_);</div>
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|
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  }</div>
|
|
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  </div>
|
|
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">// Call only if !IsDone(). Runs in O(1).</span></div>
|
|
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  LinearConstraintView Current()<span class="keyword"> const </span>{</div>
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|
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!IsDone());</div>
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|
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  LinearConstraintView result;</div>
|
|
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  result.lower_bound = linear_constraints_->lower_bounds(current_con_);</div>
|
|
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  result.upper_bound = linear_constraints_->upper_bounds(current_con_);</div>
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|
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  result.name = SafeName(*linear_constraints_, current_con_);</div>
|
|
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  result.linear_constraint_id = SafeId(*linear_constraints_, current_con_);</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keyword">const</span> <span class="keyword">auto</span> vars_begin = linear_constraint_matrix_->column_ids().begin();</div>
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|
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  result.variable_ids = absl::MakeConstSpan(vars_begin + matrix_start_,</div>
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|
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  vars_begin + matrix_end_);</div>
|
|
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">const</span> <span class="keyword">auto</span> coefficients_begins =</div>
|
|
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  linear_constraint_matrix_->coefficients().begin();</div>
|
|
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  result.coefficients = absl::MakeConstSpan(</div>
|
|
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  coefficients_begins + matrix_start_, coefficients_begins + matrix_end_);</div>
|
|
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">return</span> result;</div>
|
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<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="comment">// Call only if !IsDone().</span></div>
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|
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordtype">void</span> Next() {</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!IsDone());</div>
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|
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  ++current_con_;</div>
|
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> (IsDone()) {</div>
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|
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  matrix_start_ = <a class="code" href="namespaceoperations__research_1_1math__opt.html#a1c3bab427ac8280d7b32019b88ec59b4">NumMatrixNonzeros</a>(*linear_constraint_matrix_);</div>
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|
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  matrix_end_ = matrix_start_;</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</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="keyword">const</span> int64_t current_row_id = SafeId(*linear_constraints_, current_con_);</div>
|
|
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  matrix_start_ =</div>
|
|
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  FindRowStart(*linear_constraint_matrix_, current_row_id, matrix_end_);</div>
|
|
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  </div>
|
|
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  matrix_end_ = FindRowStart(*linear_constraint_matrix_, current_row_id + 1,</div>
|
|
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  matrix_start_);</div>
|
|
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div>
|
|
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  </div>
|
|
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">private</span>:</div>
|
|
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// NOT OWNED</span></div>
|
|
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keyword">const</span> LinearConstraintsProto* <span class="keyword">const</span> linear_constraints_;</div>
|
|
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="comment">// NOT OWNED</span></div>
|
|
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">const</span> SparseDoubleMatrixProto* <span class="keyword">const</span> linear_constraint_matrix_;</div>
|
|
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="comment">// An index into linear_constraints_, the constraint currently being viewed,</span></div>
|
|
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// or Size(linear_constraints_) when IsDone().</span></div>
|
|
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> current_con_ = 0;</div>
|
|
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  </div>
|
|
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// Informal: the interval [matrix_start_, matrix_end_) gives the indices in</span></div>
|
|
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="comment">// linear_constraint_matrix_ for linear_constraints_[current_con_]</span></div>
|
|
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// Invariant: if !IsDone():</span></div>
|
|
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// * matrix_start_: the first index in linear_constraint_matrix_ with row id</span></div>
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|
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="comment">// >= RowId(linear_constraints_[current_con_])</span></div>
|
|
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// * matrix_end_: the first index in linear_constraint_matrix_ with row id</span></div>
|
|
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// >= RowId(linear_constraints_[current_con_]) + 1</span></div>
|
|
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">//</span></div>
|
|
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">// Implementation note: matrix_start_ and matrix_end_ equal</span></div>
|
|
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="comment">// Size(linear_constraint_matrix_) when IsDone().</span></div>
|
|
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordtype">int</span> matrix_start_ = 0;</div>
|
|
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">int</span> matrix_end_ = 0;</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> };</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  </div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">inline</span> <a class="code" href="namespaceoperations__research.html#a806751db89938de9e63c667e24db74b9">GScipVarType</a> GScipVarTypeFromIsInteger(<span class="keyword">const</span> <span class="keywordtype">bool</span> is_integer) {</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> is_integer ? <a class="code" href="namespaceoperations__research.html#a806751db89938de9e63c667e24db74b9ab7400e777db61f5f726caeeab0a7dcc2">GScipVarType::kInteger</a> : <a class="code" href="namespaceoperations__research.html#a806751db89938de9e63c667e24db74b9a0445605283282f17470ec2fa998a78c8">GScipVarType::kContinuous</a>;</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  </div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// Used to delay the evaluation of a costly computation until the first time it</span></div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">// is actually needed.</span></div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// The typical use is when we have two independent branches that need the same</span></div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// data but we don't want to compute these data if we don't enter any of those</span></div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment">// branches.</span></div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">// Usage:</span></div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// LazyInitialized<Xxx> xxx([&]() {</span></div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// return Xxx(...);</span></div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">// });</span></div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment">// if (predicate_1) {</span></div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment">// ...</span></div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">// f(xxx.GetOrCreate());</span></div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">// ...</span></div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment">// }</span></div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">// if (predicate_2) {</span></div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment">// ...</span></div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment">// f(xxx.GetOrCreate());</span></div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// ...</span></div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment">// }</span></div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="keyword">class </span>LazyInitialized {</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// Checks that the input initializer is not nullptr.</span></div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keyword">explicit</span> LazyInitialized(std::function<T()> initializer)</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  : initializer_(<a class="code" href="base_2logging_8h.html#aeef651f886eb5252c08835194213efe2">ABSL_DIE_IF_NULL</a>(initializer)) {}</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  </div>
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<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// Returns the value returned by initializer(), calling it the first time.</span></div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">const</span> T& GetOrCreate() {</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span> (!value_) {</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  value_ = initializer_();</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span> *value_;</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  }</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  </div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">const</span> std::function<T()> initializer_;</div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  absl::optional<T> value_;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> };</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  </div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> SparseDoubleVectorProto <a class="code" href="namespaceoperations__research_1_1math__opt.html#a49f967b1420551cce50b84075ab62535">FillSparseDoubleVector</a>(</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keyword">const</span> std::vector<int64_t>& ids_in_order,</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">const</span> absl::flat_hash_map<int64_t, T>& id_map,</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keyword">const</span> absl::flat_hash_map<T, double>& value_map,</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keyword">const</span> SparseVectorFilterProto& filter) {</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  SparseVectorFilterPredicate predicate(filter);</div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  SparseDoubleVectorProto result;</div>
|
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t variable_id : ids_in_order) {</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = value_map.at(id_map.at(variable_id));</div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">if</span> (predicate.AcceptsAndUpdate(variable_id, <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>)) {</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  result.add_ids(variable_id);</div>
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<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  result.add_values(<a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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|
<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>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> }</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  </div>
|
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> } <span class="comment">// namespace</span></div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  </div>
|
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> absl::Status GScipSolver::AddVariables(</div>
|
|
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keyword">const</span> VariablesProto& variables,</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keyword">const</span> absl::flat_hash_map<int64_t, double>& linear_objective_coefficients) {</div>
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|
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code" href="namespaceoperations__research_1_1math__opt.html#a3055f8b845cde39af2c3bed9007d4a06">NumVariables</a>(variables); ++i) {</div>
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|
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">const</span> int64_t <span class="keywordtype">id</span> = SafeId(variables, i);</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <a class="code" href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(<span class="keywordtype">id</span>, next_unused_variable_id_);</div>
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|
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(</div>
|
|
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  SCIP_VAR* <span class="keyword">const</span> v,</div>
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|
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  gscip_->AddVariable(</div>
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|
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  variables.lower_bounds(i), variables.upper_bounds(i),</div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <a class="code" href="namespacegtl.html#abc18f60961e36340e64e428827c0e38e">gtl::FindWithDefault</a>(linear_objective_coefficients, <span class="keywordtype">id</span>),</div>
|
|
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  GScipVarTypeFromIsInteger(variables.integers(i)),</div>
|
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  SafeName(variables, i)));</div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="namespacegtl.html#a5c0d4dea208db4deaa285c06b78d8181">gtl::InsertOrDie</a>(&variables_, <span class="keywordtype">id</span>, v);</div>
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|
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  next_unused_variable_id_ = <span class="keywordtype">id</span> + 1;</div>
|
|
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  }</div>
|
|
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">return</span> absl::OkStatus();</div>
|
|
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> }</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> absl::Status GScipSolver::UpdateVariables(</div>
|
|
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keyword">const</span> VariableUpdatesProto& variable_updates) {</div>
|
|
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, lb] : <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">MakeView</a>(variable_updates.lower_bounds())) {</div>
|
|
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SetLb(variables_.at(<span class="keywordtype">id</span>), lb));</div>
|
|
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div>
|
|
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, ub] : <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">MakeView</a>(variable_updates.upper_bounds())) {</div>
|
|
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SetUb(variables_.at(<span class="keywordtype">id</span>), ub));</div>
|
|
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  }</div>
|
|
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, is_integer] : <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">MakeView</a>(variable_updates.integers())) {</div>
|
|
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SetVarType(variables_.at(<span class="keywordtype">id</span>),</div>
|
|
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  GScipVarTypeFromIsInteger(is_integer)));</div>
|
|
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  }</div>
|
|
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">return</span> absl::OkStatus();</div>
|
|
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> }</div>
|
|
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  </div>
|
|
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> absl::Status GScipSolver::AddLinearConstraints(</div>
|
|
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">const</span> LinearConstraintsProto& linear_constraints,</div>
|
|
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">const</span> SparseDoubleMatrixProto& linear_constraint_matrix) {</div>
|
|
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">for</span> (LinearConstraintIterator lin_con_it(&linear_constraints,</div>
|
|
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  &linear_constraint_matrix);</div>
|
|
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  !lin_con_it.IsDone(); lin_con_it.Next()) {</div>
|
|
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keyword">const</span> LinearConstraintView current = lin_con_it.Current();</div>
|
|
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <a class="code" href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(current.linear_constraint_id, next_unused_linear_constraint_id_);</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>  GScipLinearRange range;</div>
|
|
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  range.lower_bound = current.lower_bound;</div>
|
|
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  range.upper_bound = current.upper_bound;</div>
|
|
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  range.coefficients = std::vector<double>(current.coefficients.begin(),</div>
|
|
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  current.coefficients.end());</div>
|
|
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  range.variables.reserve(current.variable_ids.size());</div>
|
|
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t var_id : current.variable_ids) {</div>
|
|
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  range.variables.push_back(variables_.at(var_id));</div>
|
|
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  }</div>
|
|
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(</div>
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|
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  SCIP_CONS* <span class="keyword">const</span> scip_con,</div>
|
|
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  gscip_->AddLinearConstraint(range, std::string(current.name)));</div>
|
|
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <a class="code" href="namespacegtl.html#a5c0d4dea208db4deaa285c06b78d8181">gtl::InsertOrDie</a>(&linear_constraints_, current.linear_constraint_id,</div>
|
|
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  scip_con);</div>
|
|
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  next_unused_linear_constraint_id_ = current.linear_constraint_id + 1;</div>
|
|
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div>
|
|
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">return</span> absl::OkStatus();</div>
|
|
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> }</div>
|
|
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  </div>
|
|
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> absl::Status GScipSolver::UpdateLinearConstraints(</div>
|
|
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keyword">const</span> LinearConstraintUpdatesProto linear_constraint_updates,</div>
|
|
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keyword">const</span> SparseDoubleMatrixProto& linear_constraint_matrix) {</div>
|
|
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, lb] :</div>
|
|
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">MakeView</a>(linear_constraint_updates.lower_bounds())) {</div>
|
|
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  gscip_->SetLinearConstraintLb(linear_constraints_.at(<span class="keywordtype">id</span>), lb));</div>
|
|
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  }</div>
|
|
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, ub] :</div>
|
|
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">MakeView</a>(linear_constraint_updates.upper_bounds())) {</div>
|
|
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  gscip_->SetLinearConstraintUb(linear_constraints_.at(<span class="keywordtype">id</span>), ub));</div>
|
|
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  }</div>
|
|
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < linear_constraint_matrix.row_ids_size(); ++i) {</div>
|
|
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keyword">const</span> int64_t lin_con_id = linear_constraint_matrix.row_ids(i);</div>
|
|
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span> (lin_con_id >= next_unused_linear_constraint_id_) {</div>
|
|
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  }</div>
|
|
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keyword">const</span> int64_t var_id = linear_constraint_matrix.column_ids(i);</div>
|
|
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = linear_constraint_matrix.coefficients(i);</div>
|
|
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SetLinearConstraintCoef(</div>
|
|
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  linear_constraints_.at(lin_con_id), variables_.at(var_id), <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>));</div>
|
|
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  }</div>
|
|
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">return</span> absl::OkStatus();</div>
|
|
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> }</div>
|
|
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  </div>
|
|
<div class="line"><a name="l00375"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1math__opt.html#a8c55d7e595ac0f24f1559faf5ab7cc20"> 375</a></span> GScipParameters::MetaParamValue <a class="code" href="namespaceoperations__research_1_1math__opt.html#a8c55d7e595ac0f24f1559faf5ab7cc20">ConvertMathOptEmphasis</a>(Emphasis emphasis) {</div>
|
|
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">switch</span> (emphasis) {</div>
|
|
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">case</span> EMPHASIS_OFF:</div>
|
|
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">return</span> GScipParameters::OFF;</div>
|
|
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">case</span> EMPHASIS_LOW:</div>
|
|
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">return</span> GScipParameters::FAST;</div>
|
|
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">case</span> EMPHASIS_MEDIUM:</div>
|
|
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">case</span> EMPHASIS_UNSPECIFIED:</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span> GScipParameters::DEFAULT_META_PARAM_VALUE;</div>
|
|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">case</span> EMPHASIS_HIGH:</div>
|
|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">case</span> EMPHASIS_VERY_HIGH:</div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> GScipParameters::AGGRESSIVE;</div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) << <span class="stringliteral">"Unsupported MathOpt Emphasis value: "</span></div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  << <a class="code" href="namespaceoperations__research.html#a760c8bbae2698a370004ceaaba9d9920">ProtoEnumToString</a>(emphasis)</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  << <span class="stringliteral">" unknown, error setting gSCIP parameters"</span>;</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  }</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> }</div>
|
|
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  </div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#acafd442703adb9e98cce59fa8d542777"> 394</a></span> GScipParameters <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#acafd442703adb9e98cce59fa8d542777">GScipSolver::MergeCommonParameters</a>(</div>
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|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keyword">const</span> CommonSolveParametersProto& common_solver_parameters,</div>
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|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keyword">const</span> GScipParameters& gscip_parameters) {</div>
|
|
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">// First build the result by translating common parameters to a</span></div>
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|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// GScipParameters, and then merging with user provided gscip_parameters.</span></div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">// This results in user provided solver specific parameters overwriting</span></div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="comment">// common parameters should there be any conflict.</span></div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  GScipParameters result;</div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">if</span> (common_solver_parameters.has_time_limit()) {</div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="namespaceoperations__research.html#a35973d7e6ca206694a6d31a5d81d3726">GScipSetTimeLimit</a>(</div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <a class="code" href="namespaceutil__time.html#a7c8c9c3cc5c68f173f38b0237da3abc9">util_time::DecodeGoogleApiProto</a>(common_solver_parameters.time_limit())</div>
|
|
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  .value(),</div>
|
|
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  &result);</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  }</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> (common_solver_parameters.has_threads()) {</div>
|
|
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <a class="code" href="namespaceoperations__research.html#a9d54b1bb892f63abf51051c7b4228041">GScipSetMaxNumThreads</a>(common_solver_parameters.threads(), &result);</div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  }</div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keywordflow">if</span> (common_solver_parameters.has_enable_output()) {</div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">// GScip has also GScipSetOutputEnabled() but this changes the log</span></div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="comment">// level. Setting `silence_output` sets the `quiet` field on the default</span></div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="comment">// message handler of SCIP which removes the output. Here it is important to</span></div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// use this rather than changing the log level so that if the user registers</span></div>
|
|
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// for CALLBACK_EVENT_MESSAGE they do get some messages even when</span></div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// `enable_output` is false.</span></div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  result.set_silence_output(!common_solver_parameters.enable_output());</div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  }</div>
|
|
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordflow">if</span> (common_solver_parameters.has_random_seed()) {</div>
|
|
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <a class="code" href="namespaceoperations__research.html#a6c8817646c7d4431dd9327a3b0b5c8c9">GScipSetRandomSeed</a>(&result, common_solver_parameters.random_seed());</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>  <span class="keywordflow">if</span> (common_solver_parameters.lp_algorithm() != LP_ALGORITHM_UNSPECIFIED) {</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordtype">char</span> alg;</div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">switch</span> (common_solver_parameters.lp_algorithm()) {</div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">case</span> LP_ALGORITHM_PRIMAL_SIMPLEX:</div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  alg = <span class="charliteral">'p'</span>;</div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">case</span> LP_ALGORITHM_DUAL_SIMPLEX:</div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  alg = <span class="charliteral">'d'</span>;</div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">case</span> LP_ALGORITHM_BARRIER:</div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  alg = <span class="charliteral">'c'</span>;</div>
|
|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) << <span class="stringliteral">"LPAlgorithm: "</span></div>
|
|
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  << <a class="code" href="namespaceoperations__research.html#a760c8bbae2698a370004ceaaba9d9920">ProtoEnumToString</a>(common_solver_parameters.lp_algorithm())</div>
|
|
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  << <span class="stringliteral">" unknown, error setting gSCIP parameters"</span>;</div>
|
|
<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>  (*result.mutable_char_params())[<span class="stringliteral">"lp/initalgorithm"</span>] = alg;</div>
|
|
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div>
|
|
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keywordflow">if</span> (common_solver_parameters.cuts() != EMPHASIS_UNSPECIFIED) {</div>
|
|
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  result.set_separating(</div>
|
|
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a8c55d7e595ac0f24f1559faf5ab7cc20">ConvertMathOptEmphasis</a>(common_solver_parameters.cuts()));</div>
|
|
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  }</div>
|
|
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">if</span> (common_solver_parameters.heuristics() != EMPHASIS_UNSPECIFIED) {</div>
|
|
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  result.set_heuristics(</div>
|
|
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a8c55d7e595ac0f24f1559faf5ab7cc20">ConvertMathOptEmphasis</a>(common_solver_parameters.heuristics()));</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>  <span class="keywordflow">if</span> (common_solver_parameters.presolve() != EMPHASIS_UNSPECIFIED) {</div>
|
|
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  result.set_presolve(</div>
|
|
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a8c55d7e595ac0f24f1559faf5ab7cc20">ConvertMathOptEmphasis</a>(common_solver_parameters.presolve()));</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>  <span class="keywordflow">if</span> (common_solver_parameters.scaling() != EMPHASIS_UNSPECIFIED) {</div>
|
|
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keywordtype">int</span> scaling_value;</div>
|
|
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordflow">switch</span> (common_solver_parameters.scaling()) {</div>
|
|
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">case</span> EMPHASIS_OFF:</div>
|
|
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  scaling_value = 0;</div>
|
|
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">case</span> EMPHASIS_LOW:</div>
|
|
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keywordflow">case</span> EMPHASIS_MEDIUM:</div>
|
|
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  scaling_value = 1;</div>
|
|
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">case</span> EMPHASIS_HIGH:</div>
|
|
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keywordflow">case</span> EMPHASIS_VERY_HIGH:</div>
|
|
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  scaling_value = 2;</div>
|
|
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <a class="code" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) << <span class="stringliteral">"Scaling emphasis: "</span></div>
|
|
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  << <a class="code" href="namespaceoperations__research.html#a760c8bbae2698a370004ceaaba9d9920">ProtoEnumToString</a>(common_solver_parameters.scaling())</div>
|
|
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  << <span class="stringliteral">" unknown, error setting gSCIP parameters"</span>;</div>
|
|
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  }</div>
|
|
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  (*result.mutable_int_params())[<span class="stringliteral">"lp/scaling"</span>] = scaling_value;</div>
|
|
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  }</div>
|
|
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  result.MergeFrom(gscip_parameters);</div>
|
|
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">return</span> result;</div>
|
|
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> }</div>
|
|
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  </div>
|
|
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="keyword">namespace </span>{</div>
|
|
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  </div>
|
|
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> std::string JoinDetails(<span class="keyword">const</span> std::string& gscip_detail,</div>
|
|
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keyword">const</span> std::string& math_opt_detail) {</div>
|
|
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">if</span> (gscip_detail.empty()) {</div>
|
|
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">return</span> math_opt_detail;</div>
|
|
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  }</div>
|
|
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordflow">if</span> (math_opt_detail.empty()) {</div>
|
|
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordflow">return</span> gscip_detail;</div>
|
|
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  }</div>
|
|
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keywordflow">return</span> absl::StrCat(gscip_detail, <span class="stringliteral">"; "</span>, math_opt_detail);</div>
|
|
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> }</div>
|
|
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  </div>
|
|
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> } <span class="comment">// namespace</span></div>
|
|
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  </div>
|
|
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> absl::StatusOr<std::pair<SolveResultProto::TerminationReason, std::string>></div>
|
|
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> GScipSolver::ConvertTerminationReason(<span class="keyword">const</span> GScipOutput::Status gscip_status,</div>
|
|
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keyword">const</span> std::string& gscip_status_detail,</div>
|
|
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has_feasible_solution) {</div>
|
|
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">switch</span> (gscip_status) {</div>
|
|
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">case</span> <a class="code" href="namespaceoperations__research_1_1sat.html#aedc4ddb96acc28481c09828d2e016815a6ce26a62afab55d7606ad4e92428b30c">GScipOutput::UNKNOWN</a>:</div>
|
|
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keywordflow">return</span> std::make_pair(SolveResultProto::TERMINATION_REASON_UNSPECIFIED,</div>
|
|
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  gscip_status_detail);</div>
|
|
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keywordflow">case</span> GScipOutput::USER_INTERRUPT:</div>
|
|
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="keywordflow">return</span> std::make_pair(SolveResultProto::INTERRUPTED, gscip_status_detail);</div>
|
|
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keywordflow">case</span> GScipOutput::NODE_LIMIT:</div>
|
|
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  SolveResultProto::NODE_LIMIT,</div>
|
|
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="stringliteral">"Underlying gSCIP status: NODE_LIMIT."</span>));</div>
|
|
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">case</span> GScipOutput::TOTAL_NODE_LIMIT:</div>
|
|
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  SolveResultProto::NODE_LIMIT,</div>
|
|
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="stringliteral">"Underlying gSCIP status: TOTAL_NODE_LIMIT."</span>));</div>
|
|
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">case</span> GScipOutput::STALL_NODE_LIMIT:</div>
|
|
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordflow">return</span> std::make_pair(SolveResultProto::SLOW_PROGRESS,</div>
|
|
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  gscip_status_detail);</div>
|
|
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">case</span> GScipOutput::TIME_LIMIT:</div>
|
|
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">return</span> std::make_pair(SolveResultProto::TIME_LIMIT, gscip_status_detail);</div>
|
|
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">case</span> GScipOutput::MEM_LIMIT:</div>
|
|
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="keywordflow">return</span> std::make_pair(SolveResultProto::MEMORY_LIMIT,</div>
|
|
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  gscip_status_detail);</div>
|
|
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  </div>
|
|
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">case</span> GScipOutput::SOL_LIMIT:</div>
|
|
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">return</span> std::make_pair(SolveResultProto::SOLUTION_LIMIT,</div>
|
|
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="stringliteral">"Underlying gSCIP status: SOL_LIMIT."</span>));</div>
|
|
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">case</span> GScipOutput::BEST_SOL_LIMIT:</div>
|
|
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  SolveResultProto::SOLUTION_LIMIT,</div>
|
|
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="stringliteral">"Underlying gSCIP status: BEST_SOL_LIMIT."</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="keywordflow">case</span> GScipOutput::RESTART_LIMIT:</div>
|
|
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  SolveResultProto::OTHER_LIMIT,</div>
|
|
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="stringliteral">"Underlying gSCIP status: RESTART_LIMIT."</span>));</div>
|
|
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keywordflow">case</span> <a class="code" href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad">GScipOutput::OPTIMAL</a>:</div>
|
|
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keywordflow">return</span> std::make_pair(<a class="code" href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad">SolveResultProto::OPTIMAL</a>,</div>
|
|
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="stringliteral">"Underlying gSCIP status: OPTIMAL."</span>));</div>
|
|
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">case</span> GScipOutput::GAP_LIMIT:</div>
|
|
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="keywordflow">return</span> std::make_pair(<a class="code" href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad">SolveResultProto::OPTIMAL</a>,</div>
|
|
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="stringliteral">"Underlying gSCIP status: GAP_LIMIT."</span>));</div>
|
|
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">case</span> <a class="code" href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483">GScipOutput::INFEASIBLE</a>:</div>
|
|
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keywordflow">return</span> std::make_pair(<a class="code" href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483">SolveResultProto::INFEASIBLE</a>, gscip_status_detail);</div>
|
|
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keywordflow">case</span> GScipOutput::UNBOUNDED: {</div>
|
|
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">if</span> (has_feasible_solution) {</div>
|
|
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  SolveResultProto::UNBOUNDED,</div>
|
|
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="stringliteral">"Underlying gSCIP status was UNBOUNDED, both primal "</span></div>
|
|
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <span class="stringliteral">"ray and feasible solution are present."</span>));</div>
|
|
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  SolveResultProto::DUAL_INFEASIBLE,</div>
|
|
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  JoinDetails(</div>
|
|
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  gscip_status_detail,</div>
|
|
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="stringliteral">"Underlying gSCIP status was UNBOUNDED, but only primal ray "</span></div>
|
|
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="stringliteral">"was given, no feasible solution was found."</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>  }</div>
|
|
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  </div>
|
|
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keywordflow">case</span> GScipOutput::INF_OR_UNBD:</div>
|
|
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  SolveResultProto::DUAL_INFEASIBLE,</div>
|
|
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="stringliteral">"Underlying gSCIP status: INF_OR_UNBD."</span>));</div>
|
|
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keywordflow">case</span> GScipOutput::TERMINATE:</div>
|
|
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">return</span> std::make_pair(</div>
|
|
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  SolveResultProto::OTHER_ERROR,</div>
|
|
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  JoinDetails(gscip_status_detail,</div>
|
|
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="stringliteral">"Underlying gSCIP status: OTHER_ERROR."</span>));</div>
|
|
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keywordflow">case</span> GScipOutput::INVALID_SOLVER_PARAMETERS:</div>
|
|
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="keywordflow">return</span> absl::InvalidArgumentError(gscip_status_detail);</div>
|
|
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">return</span> absl::InternalError(JoinDetails(</div>
|
|
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  gscip_status_detail, absl::StrCat(<span class="stringliteral">"Missing GScipOutput.status case: "</span>,</div>
|
|
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <a class="code" href="namespaceoperations__research.html#a760c8bbae2698a370004ceaaba9d9920">ProtoEnumToString</a>(gscip_status))));</div>
|
|
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  }</div>
|
|
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> }</div>
|
|
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  </div>
|
|
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> absl::StatusOr<SolveResultProto> GScipSolver::CreateSolveResultProto(</div>
|
|
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  GScipResult gscip_result,</div>
|
|
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keyword">const</span> ModelSolveParametersProto& model_parameters) {</div>
|
|
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  SolveResultProto solve_result;</div>
|
|
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(</div>
|
|
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="keyword">const</span> <span class="keyword">auto</span> reason_and_detail,</div>
|
|
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  ConvertTerminationReason(gscip_result.gscip_output.status(),</div>
|
|
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  gscip_result.gscip_output.status_detail(),</div>
|
|
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  !gscip_result.solutions.empty()));</div>
|
|
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  solve_result.set_termination_reason(reason_and_detail.first);</div>
|
|
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  solve_result.set_termination_detail(reason_and_detail.second);</div>
|
|
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  </div>
|
|
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> num_solutions = gscip_result.solutions.size();</div>
|
|
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(num_solutions, gscip_result.objective_values.size());</div>
|
|
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  </div>
|
|
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  LazyInitialized<std::vector<int64_t>> sorted_variables([&]() {</div>
|
|
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  std::vector<int64_t> sorted;</div>
|
|
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  sorted.reserve(variables_.size());</div>
|
|
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  for (<span class="keyword">const</span> <span class="keyword">auto</span>& entry : variables_) {</div>
|
|
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  sorted.emplace_back(entry.first);</div>
|
|
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  }</div>
|
|
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  std::sort(sorted.begin(), sorted.end());</div>
|
|
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="keywordflow">return</span> sorted;</div>
|
|
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  });</div>
|
|
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < gscip_result.solutions.size(); ++i) {</div>
|
|
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  PrimalSolutionProto* <span class="keyword">const</span> primal_solution =</div>
|
|
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  solve_result.add_primal_solutions();</div>
|
|
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  primal_solution->set_objective_value(gscip_result.objective_values[i]);</div>
|
|
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  *primal_solution->mutable_variable_values() = <a class="code" href="namespaceoperations__research_1_1math__opt.html#a49f967b1420551cce50b84075ab62535">FillSparseDoubleVector</a>(</div>
|
|
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  sorted_variables.GetOrCreate(), variables_, gscip_result.solutions[i],</div>
|
|
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  model_parameters.primal_variables_filter());</div>
|
|
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  }</div>
|
|
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keywordflow">if</span> (!gscip_result.primal_ray.empty()) {</div>
|
|
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  *solve_result.add_primal_rays()->mutable_variable_values() =</div>
|
|
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a49f967b1420551cce50b84075ab62535">FillSparseDoubleVector</a>(sorted_variables.GetOrCreate(), variables_,</div>
|
|
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  gscip_result.primal_ray,</div>
|
|
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  model_parameters.primal_variables_filter());</div>
|
|
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  }</div>
|
|
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="comment">// TODO(user): add support for the basis and dual solutions in gscip, then</span></div>
|
|
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="comment">// populate them here.</span></div>
|
|
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  SolveStatsProto* <span class="keyword">const</span> common_stats = solve_result.mutable_solve_stats();</div>
|
|
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keyword">const</span> GScipSolvingStats& gscip_stats = gscip_result.gscip_output.stats();</div>
|
|
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  common_stats->set_best_dual_bound(gscip_stats.best_bound());</div>
|
|
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  common_stats->set_best_primal_bound(gscip_stats.best_objective());</div>
|
|
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  common_stats->set_node_count(gscip_stats.node_count());</div>
|
|
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  common_stats->set_simplex_iterations(gscip_stats.primal_simplex_iterations() +</div>
|
|
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  gscip_stats.dual_simplex_iterations());</div>
|
|
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  common_stats->set_barrier_iterations(gscip_stats.total_lp_iterations() -</div>
|
|
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  common_stats->simplex_iterations());</div>
|
|
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  *solve_result.mutable_gscip_output() = std::move(gscip_result.gscip_output);</div>
|
|
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keywordflow">return</span> solve_result;</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>  </div>
|
|
<div class="line"><a name="l00637"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a960ff60625af78759f2f21115cab7ae1"> 637</a></span> absl::StatusOr<std::unique_ptr<SolverInterface>> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a960ff60625af78759f2f21115cab7ae1">GScipSolver::New</a>(</div>
|
|
<div class="line"><a name="l00638"></a><span class="lineno"> 638</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="l00639"></a><span class="lineno"> 639</span>  <span class="keyword">auto</span> solver = absl::WrapUnique(<span class="keyword">new</span> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html">GScipSolver</a>);</div>
|
|
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(solver->gscip_, <a class="code" href="classoperations__research_1_1_g_scip.html#a7138e926354dd2774a796e38ab5cbff5">GScip::Create</a>(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.name()));</div>
|
|
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(solver->gscip_->SetMaximize(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective().maximize()));</div>
|
|
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  solver->gscip_->SetObjectiveOffset(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective().offset()));</div>
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|
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(solver->AddVariables(</div>
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<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables(),</div>
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<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  SparseDoubleVectorAsMap(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.objective().linear_coefficients())));</div>
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<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(solver->AddLinearConstraints(</div>
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<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints(), <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraint_matrix()));</div>
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<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordflow">return</span> solver;</div>
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<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> }</div>
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<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  </div>
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<div class="line"><a name="l00652"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a7d6731070fee00d91f229e0cff1cfa1b"> 652</a></span> absl::StatusOr<SolveResultProto> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a7d6731070fee00d91f229e0cff1cfa1b">GScipSolver::Solve</a>(</div>
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<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keyword">const</span> SolveParametersProto& <a class="code" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>,</div>
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<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keyword">const</span> ModelSolveParametersProto& model_parameters,</div>
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<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <span class="keyword">const</span> CallbackRegistrationProto& callback_registration, <span class="keyword">const</span> <a class="code" href="classoperations__research_1_1math__opt_1_1_solver_interface.html#ab47a61ca53ae9cdf35dd4f2dfc9ecadb">Callback</a> cb) {</div>
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<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keyword">const</span> absl::Time start = absl::Now();</div>
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<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  </div>
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<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  <span class="keyword">const</span> std::unique_ptr<GScipSolverCallbackHandler> callback_handler =</div>
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<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver_callback_handler.html#a22cd7715028df18c5f7fc75837b3975b">GScipSolverCallbackHandler::RegisterIfNeeded</a>(callback_registration, cb,</div>
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<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  start, gscip_->scip());</div>
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<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  </div>
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<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keyword">const</span> GScipParameters gscip_parameters = <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#acafd442703adb9e98cce59fa8d542777">MergeCommonParameters</a>(</div>
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<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <a class="code" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.common_parameters(), <a class="code" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.gscip_parameters());</div>
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<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="comment">// TODO(user): reorganize gscip to respect warning is error argument on bad</span></div>
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<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="comment">// parameters.</span></div>
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<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  </div>
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<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(</div>
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<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <a class="code" href="structoperations__research_1_1_g_scip_result.html">GScipResult</a> gscip_result,</div>
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|
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  gscip_->Solve(</div>
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<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  gscip_parameters,</div>
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<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="comment">/*legacy_params=*/</span><span class="stringliteral">""</span>,</div>
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<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  callback_handler ? callback_handler->MessageHandler() : <span class="keyword">nullptr</span>));</div>
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<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="keywordflow">if</span> (callback_handler) {</div>
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|
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(callback_handler->Flush());</div>
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|
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  }</div>
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<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(</div>
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<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  SolveResultProto result,</div>
|
|
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  CreateSolveResultProto(std::move(gscip_result), model_parameters));</div>
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<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <a class="code" href="base_2logging_8h.html#a9f96ed9f06763f0821fdbb4d29031d8d">CHECK_OK</a>(<a class="code" href="namespaceutil__time.html#ac1935e49a14ae747b6ee76804b52bf70">util_time::EncodeGoogleApiProto</a>(</div>
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|
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  absl::Now() - start, result.mutable_solve_stats()->mutable_solve_time()));</div>
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|
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <span class="keywordflow">return</span> result;</div>
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|
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span> }</div>
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|
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  </div>
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<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> absl::flat_hash_set<SCIP_VAR*> GScipSolver::LookupAllVariables(</div>
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<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  absl::Span<const int64_t> <a class="code" href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a">variable_ids</a>) {</div>
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|
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  absl::flat_hash_set<SCIP_VAR*> result;</div>
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<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  result.reserve(<a class="code" href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a">variable_ids</a>.size());</div>
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<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t var_id : <a class="code" href="gscip__solver_8cc.html#a461bf2761c1dc652a0671e5e135b763a">variable_ids</a>) {</div>
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|
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  result.insert(variables_.at(var_id));</div>
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|
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  }</div>
|
|
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordflow">return</span> result;</div>
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<div class="line"><a name="l00692"></a><span class="lineno"> 692</span> }</div>
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<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  </div>
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<div class="line"><a name="l00694"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a1dcbb1374e91747a2db097361b091c8b"> 694</a></span> <span class="keywordtype">bool</span> <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a1dcbb1374e91747a2db097361b091c8b">GScipSolver::CanUpdate</a>(<span class="keyword">const</span> ModelUpdateProto& model_update) {</div>
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|
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keywordflow">return</span> gscip_</div>
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|
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  ->CanSafeBulkDelete(</div>
|
|
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  LookupAllVariables(model_update.deleted_variable_ids()))</div>
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|
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  .ok();</div>
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|
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span> }</div>
|
|
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  </div>
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|
<div class="line"><a name="l00701"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a4dc835d3171da48778de1bbea39f8448"> 701</a></span> absl::Status <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a4dc835d3171da48778de1bbea39f8448">GScipSolver::Update</a>(<span class="keyword">const</span> ModelUpdateProto& model_update) {</div>
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<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t constraint_id :</div>
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<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  model_update.deleted_linear_constraint_ids()) {</div>
|
|
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  SCIP_CONS* <span class="keyword">const</span> scip_cons = linear_constraints_.at(constraint_id);</div>
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|
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  linear_constraints_.erase(constraint_id);</div>
|
|
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->DeleteConstraint(scip_cons));</div>
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<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  }</div>
|
|
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  {</div>
|
|
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keyword">const</span> absl::flat_hash_set<SCIP_VAR*> vars_to_delete =</div>
|
|
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  LookupAllVariables(model_update.deleted_variable_ids());</div>
|
|
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t deleted_variable_id :</div>
|
|
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  model_update.deleted_variable_ids()) {</div>
|
|
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  variables_.erase(deleted_variable_id);</div>
|
|
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  }</div>
|
|
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SafeBulkDelete(vars_to_delete));</div>
|
|
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  }</div>
|
|
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keywordflow">if</span> (model_update.objective_updates().has_direction_update()) {</div>
|
|
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SetMaximize(</div>
|
|
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  model_update.objective_updates().direction_update()));</div>
|
|
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  }</div>
|
|
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="keywordflow">if</span> (model_update.objective_updates().has_offset_update()) {</div>
|
|
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(gscip_->SetObjectiveOffset(</div>
|
|
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  model_update.objective_updates().offset_update()));</div>
|
|
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  }</div>
|
|
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(UpdateVariables(model_update.variable_updates()));</div>
|
|
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <span class="keyword">const</span> absl::flat_hash_map<int64_t, double> linear_objective_updates =</div>
|
|
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  SparseDoubleVectorAsMap(</div>
|
|
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  model_update.objective_updates().linear_coefficients());</div>
|
|
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& obj_pair : linear_objective_updates) {</div>
|
|
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keywordflow">if</span> (obj_pair.first < next_unused_variable_id_) {</div>
|
|
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  gscip_->SetObjCoef(variables_.at(obj_pair.first), obj_pair.second));</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>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  AddVariables(model_update.new_variables(), linear_objective_updates));</div>
|
|
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  UpdateLinearConstraints(model_update.linear_constraint_updates(),</div>
|
|
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  model_update.linear_constraint_matrix_updates()));</div>
|
|
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div>
|
|
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  AddLinearConstraints(model_update.new_linear_constraints(),</div>
|
|
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  model_update.linear_constraint_matrix_updates()));</div>
|
|
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  <span class="keywordflow">return</span> absl::OkStatus();</div>
|
|
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> }</div>
|
|
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  </div>
|
|
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <a class="code" href="namespaceoperations__research_1_1math__opt.html#a174eb56fe2f478a51da5bad317555b83">MATH_OPT_REGISTER_SOLVER</a>(SOLVER_TYPE_GSCIP, <a class="code" href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a960ff60625af78759f2f21115cab7ae1">GScipSolver::New</a>)</div>
|
|
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  </div>
|
|
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span> } <span class="comment">// namespace math_opt</span></div>
|
|
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span> } <span class="comment">// namespace operations_research</span></div>
|
|
<div class="ttc" id="abase_2logging_8h_html"><div class="ttname"><a href="base_2logging_8h.html">logging.h</a></div></div>
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<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#l00498">base/logging.h:498</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00705">base/logging.h:705</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7cc25402ecd7591b4c39934dd656b1f9"><div class="ttname"><a href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a></div><div class="ttdeci">#define CHECK_GE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00709">base/logging.h:709</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a9f96ed9f06763f0821fdbb4d29031d8d"><div class="ttname"><a href="base_2logging_8h.html#a9f96ed9f06763f0821fdbb4d29031d8d">CHECK_OK</a></div><div class="ttdeci">#define CHECK_OK(x)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00042">base/logging.h:42</a></div></div>
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<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#l00423">base/logging.h:423</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_aeef651f886eb5252c08835194213efe2"><div class="ttname"><a href="base_2logging_8h.html#aeef651f886eb5252c08835194213efe2">ABSL_DIE_IF_NULL</a></div><div class="ttdeci">#define ABSL_DIE_IF_NULL</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00041">base/logging.h:41</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_g_scip_html_a7138e926354dd2774a796e38ab5cbff5"><div class="ttname"><a href="classoperations__research_1_1_g_scip.html#a7138e926354dd2774a796e38ab5cbff5">operations_research::GScip::Create</a></div><div class="ttdeci">static absl::StatusOr< std::unique_ptr< GScip > > Create(const std::string &problem_name)</div><div class="ttdef"><b>Definition:</b> <a href="gscip_8cc_source.html#l00248">gscip.cc:248</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1math__opt_1_1_g_scip_solver_callback_handler_html_a22cd7715028df18c5f7fc75837b3975b"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver_callback_handler.html#a22cd7715028df18c5f7fc75837b3975b">operations_research::math_opt::GScipSolverCallbackHandler::RegisterIfNeeded</a></div><div class="ttdeci">static std::unique_ptr< GScipSolverCallbackHandler > RegisterIfNeeded(const CallbackRegistrationProto &callback_registration, SolverInterface::Callback callback, absl::Time solve_start, SCIP *scip)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver__callback_8cc_source.html#l00045">gscip_solver_callback.cc:45</a></div></div>
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<div class="ttc" id="aclassoperations__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="aclassoperations__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="aclassoperations__research_1_1math__opt_1_1_g_scip_solver_html_a4dc835d3171da48778de1bbea39f8448"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a4dc835d3171da48778de1bbea39f8448">operations_research::math_opt::GScipSolver::Update</a></div><div class="ttdeci">absl::Status Update(const ModelUpdateProto &model_update) override</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00701">gscip_solver.cc:701</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1math__opt_1_1_g_scip_solver_html_a7d6731070fee00d91f229e0cff1cfa1b"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_g_scip_solver.html#a7d6731070fee00d91f229e0cff1cfa1b">operations_research::math_opt::GScipSolver::Solve</a></div><div class="ttdeci">absl::StatusOr< SolveResultProto > Solve(const SolveParametersProto &parameters, const ModelSolveParametersProto &model_parameters, const CallbackRegistrationProto &callback_registration, Callback cb) override</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00652">gscip_solver.cc:652</a></div></div>
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<div class="ttc" id="aclassoperations__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="aclassoperations__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="aclassoperations__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#l00054">solver_interface.h:55</a></div></div>
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<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>
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<div class="ttc" id="ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514"><div class="ttname"><a href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a></div><div class="ttdeci">int64_t value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00044">demon_profiler.cc:44</a></div></div>
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<div class="ttc" id="agscip_8h_html"><div class="ttname"><a href="gscip_8h.html">gscip.h</a></div></div>
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<div class="ttc" id="agscip_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="agscip__parameters_8h_html"><div class="ttname"><a href="gscip__parameters_8h.html">gscip_parameters.h</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_a1b69e9b6927ad6890c586977105d79f5"><div class="ttname"><a href="gscip__solver_8cc.html#a1b69e9b6927ad6890c586977105d79f5">linear_constraint_id</a></div><div class="ttdeci">int64_t linear_constraint_id</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00124">gscip_solver.cc:124</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_a1ba5ca0f61f2fa13bd23bf0f89004f35"><div class="ttname"><a href="gscip__solver_8cc.html#a1ba5ca0f61f2fa13bd23bf0f89004f35">upper_bound</a></div><div class="ttdeci">double upper_bound</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00126">gscip_solver.cc:126</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_a1e2f9a2352c1d9a6cada9544898fceec"><div class="ttname"><a href="gscip__solver_8cc.html#a1e2f9a2352c1d9a6cada9544898fceec">lower_bound</a></div><div class="ttdeci">double lower_bound</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00125">gscip_solver.cc:125</a></div></div>
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<div class="ttc" id="agscip__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="agscip__solver_8cc_html_a82e2a7e0f28d620da677073b6b24574b"><div class="ttname"><a href="gscip__solver_8cc.html#a82e2a7e0f28d620da677073b6b24574b">name</a></div><div class="ttdeci">absl::string_view name</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00127">gscip_solver.cc:127</a></div></div>
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<div class="ttc" id="agscip__solver_8cc_html_aa59e74cc299dbf75fa6e2234dd0849a2"><div class="ttname"><a href="gscip__solver_8cc.html#aa59e74cc299dbf75fa6e2234dd0849a2">coefficients</a></div><div class="ttdeci">absl::Span< const double > coefficients</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00129">gscip_solver.cc:129</a></div></div>
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<div class="ttc" id="agscip__solver_8h_html"><div class="ttname"><a href="gscip__solver_8h.html">gscip_solver.h</a></div></div>
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<div class="ttc" id="agscip__solver__callback_8h_html"><div class="ttname"><a href="gscip__solver__callback_8h.html">gscip_solver_callback.h</a></div></div>
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<div class="ttc" id="agurobi__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#l00273">gurobi_interface.cc:273</a></div></div>
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<div class="ttc" id="aintegral__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="alog__severity_8h_html_acdd38e3c9f22f127d7776920e3079eda"><div class="ttname"><a href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a></div><div class="ttdeci">const int FATAL</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00032">log_severity.h:32</a></div></div>
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<div class="ttc" id="amap__util_8h_html"><div class="ttname"><a href="map__util_8h.html">map_util.h</a></div></div>
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<div class="ttc" id="amath__opt__proto__utils_8h_html"><div class="ttname"><a href="math__opt__proto__utils_8h.html">math_opt_proto_utils.h</a></div></div>
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<div class="ttc" id="anamespacegtl_html_a5c0d4dea208db4deaa285c06b78d8181"><div class="ttname"><a href="namespacegtl.html#a5c0d4dea208db4deaa285c06b78d8181">gtl::InsertOrDie</a></div><div class="ttdeci">void InsertOrDie(Collection *const collection, const typename Collection::value_type &value)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00154">map_util.h:154</a></div></div>
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<div class="ttc" id="anamespacegtl_html_abc18f60961e36340e64e428827c0e38e"><div class="ttname"><a href="namespacegtl.html#abc18f60961e36340e64e428827c0e38e">gtl::FindWithDefault</a></div><div class="ttdeci">const Collection::value_type::second_type & FindWithDefault(const Collection &collection, const typename Collection::value_type::first_type &key, const typename Collection::value_type::second_type &value)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00029">map_util.h:29</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1data_1_1vbp_html_a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad"><div class="ttname"><a href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad">operations_research::data::vbp::OPTIMAL</a></div><div class="ttdeci">@ OPTIMAL</div><div class="ttdef"><b>Definition:</b> <a href="vector__bin__packing_8pb_8h_source.html#l00088">vector_bin_packing.pb.h:88</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1data_1_1vbp_html_a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483"><div class="ttname"><a href="namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483">operations_research::data::vbp::INFEASIBLE</a></div><div class="ttdeci">@ INFEASIBLE</div><div class="ttdef"><b>Definition:</b> <a href="vector__bin__packing_8pb_8h_source.html#l00090">vector_bin_packing.pb.h:90</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a174eb56fe2f478a51da5bad317555b83"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a174eb56fe2f478a51da5bad317555b83">operations_research::math_opt::MATH_OPT_REGISTER_SOLVER</a></div><div class="ttdeci">MATH_OPT_REGISTER_SOLVER(SOLVER_TYPE_CP_SAT, CpSatSolver::New)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a1c3bab427ac8280d7b32019b88ec59b4"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a1c3bab427ac8280d7b32019b88ec59b4">operations_research::math_opt::NumMatrixNonzeros</a></div><div class="ttdeci">int NumMatrixNonzeros(const SparseDoubleMatrixProto &matrix)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt__proto__utils_8h_source.html#l00037">math_opt_proto_utils.h:37</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a3055f8b845cde39af2c3bed9007d4a06"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a3055f8b845cde39af2c3bed9007d4a06">operations_research::math_opt::NumVariables</a></div><div class="ttdeci">int NumVariables(const VariablesProto &variables)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt__proto__utils_8h_source.html#l00029">math_opt_proto_utils.h:29</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a49f967b1420551cce50b84075ab62535"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a49f967b1420551cce50b84075ab62535">operations_research::math_opt::FillSparseDoubleVector</a></div><div class="ttdeci">SparseDoubleVectorProto FillSparseDoubleVector(const std::vector< int64_t > &ids_in_order, const absl::flat_hash_map< int64_t, IndexType > &id_map, const glop::StrictITIVector< IndexType, glop::Fractional > &values, const SparseVectorFilterProto &filter)</div><div class="ttdef"><b>Definition:</b> <a href="glop__solver_8cc_source.html#l00322">glop_solver.cc:322</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a8c55d7e595ac0f24f1559faf5ab7cc20"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a8c55d7e595ac0f24f1559faf5ab7cc20">operations_research::math_opt::ConvertMathOptEmphasis</a></div><div class="ttdeci">GScipParameters::MetaParamValue ConvertMathOptEmphasis(Emphasis emphasis)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__solver_8cc_source.html#l00375">gscip_solver.cc:375</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_a98600a28f0f805ae0cbe04802b0dcbc4"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a98600a28f0f805ae0cbe04802b0dcbc4">operations_research::math_opt::NumConstraints</a></div><div class="ttdeci">int NumConstraints(const LinearConstraintsProto &linear_constraints)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt__proto__utils_8h_source.html#l00033">math_opt_proto_utils.h:33</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1math__opt_html_ac17be684f3a6337b38f287c0a1e8c691"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">operations_research::math_opt::MakeView</a></div><div class="ttdeci">SparseVectorView< T > MakeView(absl::Span< const int64_t > ids, const Collection &values)</div><div class="ttdef"><b>Definition:</b> <a href="sparse__vector__view_8h_source.html#l00140">sparse_vector_view.h:140</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aedc4ddb96acc28481c09828d2e016815a6ce26a62afab55d7606ad4e92428b30c"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aedc4ddb96acc28481c09828d2e016815a6ce26a62afab55d7606ad4e92428b30c">operations_research::sat::UNKNOWN</a></div><div class="ttdeci">@ UNKNOWN</div><div class="ttdef"><b>Definition:</b> <a href="cp__model_8pb_8h_source.html#l00236">cp_model.pb.h:236</a></div></div>
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<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>
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<div class="ttc" id="anamespaceoperations__research_html_a35973d7e6ca206694a6d31a5d81d3726"><div class="ttname"><a href="namespaceoperations__research.html#a35973d7e6ca206694a6d31a5d81d3726">operations_research::GScipSetTimeLimit</a></div><div class="ttdeci">void GScipSetTimeLimit(absl::Duration time_limit, GScipParameters *parameters)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__parameters_8cc_source.html#l00030">gscip_parameters.cc:30</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a6c8817646c7d4431dd9327a3b0b5c8c9"><div class="ttname"><a href="namespaceoperations__research.html#a6c8817646c7d4431dd9327a3b0b5c8c9">operations_research::GScipSetRandomSeed</a></div><div class="ttdeci">void GScipSetRandomSeed(GScipParameters *parameters, int random_seed)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__parameters_8cc_source.html#l00107">gscip_parameters.cc:107</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a760c8bbae2698a370004ceaaba9d9920"><div class="ttname"><a href="namespaceoperations__research.html#a760c8bbae2698a370004ceaaba9d9920">operations_research::ProtoEnumToString</a></div><div class="ttdeci">std::string ProtoEnumToString(ProtoEnumType enum_value)</div><div class="ttdef"><b>Definition:</b> <a href="port_2proto__utils_8h_source.html#l00046">port/proto_utils.h:46</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a806751db89938de9e63c667e24db74b9"><div class="ttname"><a href="namespaceoperations__research.html#a806751db89938de9e63c667e24db74b9">operations_research::GScipVarType</a></div><div class="ttdeci">GScipVarType</div><div class="ttdef"><b>Definition:</b> <a href="gscip_8h_source.html#l00108">gscip.h:108</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a806751db89938de9e63c667e24db74b9a0445605283282f17470ec2fa998a78c8"><div class="ttname"><a href="namespaceoperations__research.html#a806751db89938de9e63c667e24db74b9a0445605283282f17470ec2fa998a78c8">operations_research::GScipVarType::kContinuous</a></div><div class="ttdeci">@ kContinuous</div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a806751db89938de9e63c667e24db74b9ab7400e777db61f5f726caeeab0a7dcc2"><div class="ttname"><a href="namespaceoperations__research.html#a806751db89938de9e63c667e24db74b9ab7400e777db61f5f726caeeab0a7dcc2">operations_research::GScipVarType::kInteger</a></div><div class="ttdeci">@ kInteger</div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a9d54b1bb892f63abf51051c7b4228041"><div class="ttname"><a href="namespaceoperations__research.html#a9d54b1bb892f63abf51051c7b4228041">operations_research::GScipSetMaxNumThreads</a></div><div class="ttdeci">void GScipSetMaxNumThreads(int num_threads, GScipParameters *parameters)</div><div class="ttdef"><b>Definition:</b> <a href="gscip__parameters_8cc_source.html#l00058">gscip_parameters.cc:58</a></div></div>
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