[484] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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| 2 | * |
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| 3 | * This file is a part of LEMON, a generic C++ optimization library. |
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| 4 | * |
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[1081] | 5 | * Copyright (C) 2003-2011 |
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[484] | 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 8 | * |
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| 9 | * Permission to use, modify and distribute this software is granted |
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| 10 | * provided that this copyright notice appears in all copies. For |
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| 11 | * precise terms see the accompanying LICENSE file. |
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| 12 | * |
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| 13 | * This software is provided "AS IS" with no warranty of any kind, |
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| 14 | * express or implied, and with no claim as to its suitability for any |
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| 15 | * purpose. |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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| 19 | #ifndef LEMON_SOPLEX_H |
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| 20 | #define LEMON_SOPLEX_H |
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| 21 | |
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| 22 | ///\file |
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| 23 | ///\brief Header of the LEMON-SOPLEX lp solver interface. |
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| 24 | |
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| 25 | #include <vector> |
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| 26 | #include <string> |
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| 27 | |
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| 28 | #include <lemon/lp_base.h> |
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| 29 | |
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| 30 | // Forward declaration |
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| 31 | namespace soplex { |
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| 32 | class SoPlex; |
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| 33 | } |
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| 34 | |
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| 35 | namespace lemon { |
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| 36 | |
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| 37 | /// \ingroup lp_group |
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| 38 | /// |
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| 39 | /// \brief Interface for the SOPLEX solver |
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| 40 | /// |
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| 41 | /// This class implements an interface for the SoPlex LP solver. |
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| 42 | /// The SoPlex library is an object oriented lp solver library |
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| 43 | /// developed at the Konrad-Zuse-Zentrum für Informationstechnik |
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| 44 | /// Berlin (ZIB). You can find detailed information about it at the |
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| 45 | /// <tt>http://soplex.zib.de</tt> address. |
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[485] | 46 | class SoplexLp : public LpSolver { |
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[484] | 47 | private: |
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| 48 | |
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| 49 | soplex::SoPlex* soplex; |
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| 50 | |
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| 51 | std::vector<std::string> _col_names; |
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| 52 | std::map<std::string, int> _col_names_ref; |
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| 53 | |
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| 54 | std::vector<std::string> _row_names; |
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| 55 | std::map<std::string, int> _row_names_ref; |
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| 56 | |
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| 57 | private: |
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| 58 | |
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| 59 | // these values cannot be retrieved element by element |
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| 60 | mutable std::vector<Value> _primal_values; |
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| 61 | mutable std::vector<Value> _dual_values; |
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| 62 | |
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| 63 | mutable std::vector<Value> _primal_ray; |
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| 64 | mutable std::vector<Value> _dual_ray; |
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| 65 | |
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| 66 | void _clear_temporals(); |
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| 67 | |
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| 68 | public: |
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| 69 | |
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| 70 | /// \e |
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[485] | 71 | SoplexLp(); |
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[484] | 72 | /// \e |
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[485] | 73 | SoplexLp(const SoplexLp&); |
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[484] | 74 | /// \e |
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[485] | 75 | ~SoplexLp(); |
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[587] | 76 | /// \e |
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| 77 | virtual SoplexLp* newSolver() const; |
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| 78 | /// \e |
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| 79 | virtual SoplexLp* cloneSolver() const; |
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[484] | 80 | |
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| 81 | protected: |
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| 82 | |
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| 83 | virtual const char* _solverName() const; |
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| 84 | |
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| 85 | virtual int _addCol(); |
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| 86 | virtual int _addRow(); |
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| 87 | |
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| 88 | virtual void _eraseCol(int i); |
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| 89 | virtual void _eraseRow(int i); |
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| 90 | |
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| 91 | virtual void _eraseColId(int i); |
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| 92 | virtual void _eraseRowId(int i); |
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| 93 | |
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| 94 | virtual void _getColName(int col, std::string& name) const; |
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| 95 | virtual void _setColName(int col, const std::string& name); |
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| 96 | virtual int _colByName(const std::string& name) const; |
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| 97 | |
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| 98 | virtual void _getRowName(int row, std::string& name) const; |
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| 99 | virtual void _setRowName(int row, const std::string& name); |
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| 100 | virtual int _rowByName(const std::string& name) const; |
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| 101 | |
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| 102 | virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e); |
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| 103 | virtual void _getRowCoeffs(int i, InsertIterator b) const; |
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| 104 | |
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| 105 | virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e); |
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| 106 | virtual void _getColCoeffs(int i, InsertIterator b) const; |
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| 107 | |
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| 108 | virtual void _setCoeff(int row, int col, Value value); |
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| 109 | virtual Value _getCoeff(int row, int col) const; |
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| 110 | |
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| 111 | virtual void _setColLowerBound(int i, Value value); |
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| 112 | virtual Value _getColLowerBound(int i) const; |
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| 113 | virtual void _setColUpperBound(int i, Value value); |
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| 114 | virtual Value _getColUpperBound(int i) const; |
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| 115 | |
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| 116 | virtual void _setRowLowerBound(int i, Value value); |
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| 117 | virtual Value _getRowLowerBound(int i) const; |
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| 118 | virtual void _setRowUpperBound(int i, Value value); |
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| 119 | virtual Value _getRowUpperBound(int i) const; |
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| 120 | |
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| 121 | virtual void _setObjCoeffs(ExprIterator b, ExprIterator e); |
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| 122 | virtual void _getObjCoeffs(InsertIterator b) const; |
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| 123 | |
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| 124 | virtual void _setObjCoeff(int i, Value obj_coef); |
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| 125 | virtual Value _getObjCoeff(int i) const; |
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| 126 | |
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| 127 | virtual void _setSense(Sense sense); |
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| 128 | virtual Sense _getSense() const; |
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| 129 | |
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| 130 | virtual SolveExitStatus _solve(); |
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| 131 | virtual Value _getPrimal(int i) const; |
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| 132 | virtual Value _getDual(int i) const; |
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| 133 | |
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| 134 | virtual Value _getPrimalValue() const; |
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| 135 | |
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| 136 | virtual Value _getPrimalRay(int i) const; |
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| 137 | virtual Value _getDualRay(int i) const; |
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| 138 | |
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| 139 | virtual VarStatus _getColStatus(int i) const; |
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| 140 | virtual VarStatus _getRowStatus(int i) const; |
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| 141 | |
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| 142 | virtual ProblemType _getPrimalType() const; |
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| 143 | virtual ProblemType _getDualType() const; |
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| 144 | |
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| 145 | virtual void _clear(); |
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| 146 | |
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[623] | 147 | void _messageLevel(MessageLevel m); |
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| 148 | void _applyMessageLevel(); |
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| 149 | |
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| 150 | int _message_level; |
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| 151 | |
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[484] | 152 | }; |
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| 153 | |
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| 154 | } //END OF NAMESPACE LEMON |
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| 155 | |
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| 156 | #endif //LEMON_SOPLEX_H |
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| 157 | |
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