source: branches/2931_OR-Tools_LP_MIP/HeuristicLab.MathematicalOptimization/3.3/LinearProgramming/Algorithms/Solvers/CplexSolver.cs @ 16718

Last change on this file since 16718 was 16718, checked in by ddorfmei, 3 months ago

#2931: Cleanup, fixed spelling mistakes

File size: 2.9 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 Google.OrTools.LinearSolver;
24using HeuristicLab.Common;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27using HeuristicLab.Parameters;
28using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
29
30namespace HeuristicLab.ExactOptimization.LinearProgramming {
31
32  [Item("CPLEX", "CPLEX (https://www.ibm.com/analytics/cplex-optimizer) must be installed and licensed.")]
33  [StorableClass]
34  public class CplexSolver : ExternalIncrementalLinearSolver {
35
36    public CplexSolver() {
37      Parameters.Add(libraryNameParam = new FixedValueParameter<FileValue>(nameof(LibraryName),
38        new FileValue { FileDialogFilter = FileDialogFilter, Value = Properties.Settings.Default.CplexLibraryName }));
39      SolverSpecificParameters =
40        "CPLEX Parameter File Version 12.8.0" + Environment.NewLine +
41        "# for file format, see https://www.ibm.com/support/knowledgecenter/SSSA5P_12.8.0/ilog.odms.cplex.help/CPLEX/FileFormats/topics/PRM.html" + Environment.NewLine +
42        "# for parameters, see https://www.ibm.com/support/knowledgecenter/SSSA5P_12.8.0/ilog.odms.cplex.help/CPLEX/Parameters/topics/introListTopical.html" + Environment.NewLine +
43        "# examples:" + Environment.NewLine +
44        "# CPXPARAM_RandomSeed 10" + Environment.NewLine +
45        "# CPXPARAM_LPMethod 4 # Barrier (LP)" + Environment.NewLine +
46        "# CPXPARAM_MIP_Strategy_SubAlgorithm 4 # Barrier (MIP)" + Environment.NewLine +
47        "# CPXPARAM_MIP_Strategy_Search 2 # Apply dynamic search (MIP)" + Environment.NewLine;
48    }
49
50    [StorableConstructor]
51    protected CplexSolver(bool deserializing)
52      : base(deserializing) {
53    }
54
55    protected CplexSolver(CplexSolver original, Cloner cloner)
56      : base(original, cloner) {
57    }
58
59    protected override Solver.OptimizationProblemType OptimizationProblemType =>
60      ProblemType == ProblemType.LinearProgramming
61        ? Solver.OptimizationProblemType.CplexLinearProgramming
62        : Solver.OptimizationProblemType.CplexMixedIntegerProgramming;
63
64    public override IDeepCloneable Clone(Cloner cloner) => new CplexSolver(this, cloner);
65  }
66}
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