source: branches/2931_OR-Tools_LP_MIP/HeuristicLab.MathematicalOptimization/3.3/LinearProgramming/Algorithms/Solvers/BopSolver.cs @ 16373

Last change on this file since 16373 was 16373, checked in by ddorfmei, 3 months ago

#2931:

  • upgraded Google OR-Tools to version 6.10
  • added TextValue and TextValueView to be able to display and edit a multiline string
  • added parameter to set solver specific parameters for supported solvers
  • added support for the Protocol Buffers representation of models (import/export)
  • added import of MPS models
  • added pause/stop functionality to CplexSolver and GlpkSolver
  • refactored wrapper (LinearSolver and related enums)
  • added new algorithm category Exact for LinearProgrammingAlgorithm
File size: 2.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.MathematicalOptimization.LinearProgramming.Algorithms.Solvers.Base;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29
30namespace HeuristicLab.MathematicalOptimization.LinearProgramming.Algorithms.Solvers {
31
32  [Item("BOP", "BOP (https://developers.google.com/optimization/reference/bop/bop_solver/) can be used out of the box.")]
33  [StorableClass]
34  public class BopSolver : IncrementalSolver {
35
36    public BopSolver() {
37      Parameters.Remove(problemTypeParam);
38      Parameters.Add(new FixedValueParameter<StringValue>(nameof(ProblemType), new StringValue("ZeroOneProgramming").AsReadOnly()));
39      SolverSpecificParameters.Value =
40        "# for file format, see Protocol Buffers text format (https://developers.google.com/protocol-buffers/docs/overview#whynotxml)" + Environment.NewLine +
41        "# for parameters, see https://github.com/google/or-tools/blob/v6.10/ortools/bop/bop_parameters.proto" + Environment.NewLine +
42        "# example:" + Environment.NewLine +
43        "# random_seed: 10" + Environment.NewLine;
44    }
45
46    protected BopSolver(BopSolver original, Cloner cloner)
47      : base(original, cloner) {
48    }
49
50    [StorableConstructor]
51    protected BopSolver(bool deserializing)
52      : base(deserializing) {
53    }
54
55    protected override OptimizationProblemType OptimizationProblemType =>
56               OptimizationProblemType.BopIntegerProgramming;
57  }
58}
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