lemon/clp.h
author Alpar Juttner <alpar@cs.elte.hu>
Thu, 05 Nov 2009 10:01:02 +0100
changeset 779 c160bf9f18ef
parent 540 9db62975c32b
child 746 e4554cd6b2bf
permissions -rw-r--r--
Merge
alpar@461
     1
/* -*- mode: C++; indent-tabs-mode: nil; -*-
alpar@461
     2
 *
alpar@461
     3
 * This file is a part of LEMON, a generic C++ optimization library.
alpar@461
     4
 *
alpar@461
     5
 * Copyright (C) 2003-2008
alpar@461
     6
 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@461
     7
 * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@461
     8
 *
alpar@461
     9
 * Permission to use, modify and distribute this software is granted
alpar@461
    10
 * provided that this copyright notice appears in all copies. For
alpar@461
    11
 * precise terms see the accompanying LICENSE file.
alpar@461
    12
 *
alpar@461
    13
 * This software is provided "AS IS" with no warranty of any kind,
alpar@461
    14
 * express or implied, and with no claim as to its suitability for any
alpar@461
    15
 * purpose.
alpar@461
    16
 *
alpar@461
    17
 */
alpar@461
    18
alpar@461
    19
#ifndef LEMON_CLP_H
alpar@461
    20
#define LEMON_CLP_H
alpar@461
    21
alpar@461
    22
///\file
alpar@461
    23
///\brief Header of the LEMON-CLP lp solver interface.
alpar@461
    24
alpar@461
    25
#include <vector>
alpar@461
    26
#include <string>
alpar@461
    27
alpar@461
    28
#include <lemon/lp_base.h>
alpar@461
    29
alpar@461
    30
class ClpSimplex;
alpar@461
    31
alpar@461
    32
namespace lemon {
alpar@461
    33
alpar@461
    34
  /// \ingroup lp_group
alpar@461
    35
  ///
alpar@461
    36
  /// \brief Interface for the CLP solver
alpar@461
    37
  ///
alpar@461
    38
  /// This class implements an interface for the Clp LP solver.  The
alpar@461
    39
  /// Clp library is an object oriented lp solver library developed at
alpar@461
    40
  /// the IBM. The CLP is part of the COIN-OR package and it can be
alpar@461
    41
  /// used with Common Public License.
alpar@462
    42
  class ClpLp : public LpSolver {
alpar@461
    43
  protected:
alpar@461
    44
alpar@461
    45
    ClpSimplex* _prob;
alpar@461
    46
alpar@461
    47
    std::map<std::string, int> _col_names_ref;
alpar@461
    48
    std::map<std::string, int> _row_names_ref;
alpar@461
    49
alpar@461
    50
  public:
alpar@461
    51
alpar@461
    52
    /// \e
alpar@462
    53
    ClpLp();
alpar@461
    54
    /// \e
alpar@462
    55
    ClpLp(const ClpLp&);
alpar@461
    56
    /// \e
alpar@462
    57
    ~ClpLp();
alpar@461
    58
alpar@540
    59
    /// \e
alpar@540
    60
    virtual ClpLp* newSolver() const;
alpar@540
    61
    /// \e
alpar@540
    62
    virtual ClpLp* cloneSolver() const;
alpar@540
    63
alpar@461
    64
  protected:
alpar@461
    65
alpar@461
    66
    mutable double* _primal_ray;
alpar@461
    67
    mutable double* _dual_ray;
alpar@461
    68
alpar@461
    69
    void _init_temporals();
alpar@461
    70
    void _clear_temporals();
alpar@461
    71
alpar@461
    72
  protected:
alpar@461
    73
alpar@461
    74
    virtual const char* _solverName() const;
alpar@461
    75
alpar@461
    76
    virtual int _addCol();
alpar@461
    77
    virtual int _addRow();
alpar@461
    78
alpar@461
    79
    virtual void _eraseCol(int i);
alpar@461
    80
    virtual void _eraseRow(int i);
alpar@461
    81
alpar@461
    82
    virtual void _eraseColId(int i);
alpar@461
    83
    virtual void _eraseRowId(int i);
alpar@461
    84
alpar@461
    85
    virtual void _getColName(int col, std::string& name) const;
alpar@461
    86
    virtual void _setColName(int col, const std::string& name);
alpar@461
    87
    virtual int _colByName(const std::string& name) const;
alpar@461
    88
alpar@461
    89
    virtual void _getRowName(int row, std::string& name) const;
alpar@461
    90
    virtual void _setRowName(int row, const std::string& name);
alpar@461
    91
    virtual int _rowByName(const std::string& name) const;
alpar@461
    92
alpar@461
    93
    virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
alpar@461
    94
    virtual void _getRowCoeffs(int i, InsertIterator b) const;
alpar@461
    95
alpar@461
    96
    virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
alpar@461
    97
    virtual void _getColCoeffs(int i, InsertIterator b) const;
alpar@461
    98
alpar@461
    99
    virtual void _setCoeff(int row, int col, Value value);
alpar@461
   100
    virtual Value _getCoeff(int row, int col) const;
alpar@461
   101
alpar@461
   102
    virtual void _setColLowerBound(int i, Value value);
alpar@461
   103
    virtual Value _getColLowerBound(int i) const;
alpar@461
   104
    virtual void _setColUpperBound(int i, Value value);
alpar@461
   105
    virtual Value _getColUpperBound(int i) const;
alpar@461
   106
alpar@461
   107
    virtual void _setRowLowerBound(int i, Value value);
alpar@461
   108
    virtual Value _getRowLowerBound(int i) const;
alpar@461
   109
    virtual void _setRowUpperBound(int i, Value value);
alpar@461
   110
    virtual Value _getRowUpperBound(int i) const;
alpar@461
   111
alpar@461
   112
    virtual void _setObjCoeffs(ExprIterator, ExprIterator);
alpar@461
   113
    virtual void _getObjCoeffs(InsertIterator) const;
alpar@461
   114
alpar@461
   115
    virtual void _setObjCoeff(int i, Value obj_coef);
alpar@461
   116
    virtual Value _getObjCoeff(int i) const;
alpar@461
   117
alpar@461
   118
    virtual void _setSense(Sense sense);
alpar@461
   119
    virtual Sense _getSense() const;
alpar@461
   120
alpar@461
   121
    virtual SolveExitStatus _solve();
alpar@461
   122
alpar@461
   123
    virtual Value _getPrimal(int i) const;
alpar@461
   124
    virtual Value _getDual(int i) const;
alpar@461
   125
alpar@461
   126
    virtual Value _getPrimalValue() const;
alpar@461
   127
alpar@461
   128
    virtual Value _getPrimalRay(int i) const;
alpar@461
   129
    virtual Value _getDualRay(int i) const;
alpar@461
   130
alpar@461
   131
    virtual VarStatus _getColStatus(int i) const;
alpar@461
   132
    virtual VarStatus _getRowStatus(int i) const;
alpar@461
   133
alpar@461
   134
    virtual ProblemType _getPrimalType() const;
alpar@461
   135
    virtual ProblemType _getDualType() const;
alpar@461
   136
alpar@461
   137
    virtual void _clear();
alpar@461
   138
deba@576
   139
    virtual void _messageLevel(MessageLevel);
deba@576
   140
    
alpar@461
   141
  public:
alpar@461
   142
alpar@461
   143
    ///Solves LP with primal simplex method.
alpar@461
   144
    SolveExitStatus solvePrimal();
alpar@461
   145
alpar@461
   146
    ///Solves LP with dual simplex method.
alpar@461
   147
    SolveExitStatus solveDual();
alpar@461
   148
alpar@461
   149
    ///Solves LP with barrier method.
alpar@461
   150
    SolveExitStatus solveBarrier();
alpar@461
   151
alpar@461
   152
    ///Returns the constraint identifier understood by CLP.
alpar@461
   153
    int clpRow(Row r) const { return rows(id(r)); }
alpar@461
   154
alpar@461
   155
    ///Returns the variable identifier understood by CLP.
alpar@461
   156
    int clpCol(Col c) const { return cols(id(c)); }
alpar@461
   157
alpar@461
   158
  };
alpar@461
   159
alpar@461
   160
} //END OF NAMESPACE LEMON
alpar@461
   161
alpar@461
   162
#endif //LEMON_CLP_H
alpar@461
   163