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Diffstat (limited to 'build/Bonmin/include/coin/CbcHeuristicRINS.hpp')
-rw-r--r-- | build/Bonmin/include/coin/CbcHeuristicRINS.hpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/build/Bonmin/include/coin/CbcHeuristicRINS.hpp b/build/Bonmin/include/coin/CbcHeuristicRINS.hpp new file mode 100644 index 0000000..89281b5 --- /dev/null +++ b/build/Bonmin/include/coin/CbcHeuristicRINS.hpp @@ -0,0 +1,102 @@ +/* $Id: CbcHeuristicRINS.hpp 1956 2013-08-17 15:28:45Z forrest $ */ +// Copyright (C) 2006, International Business Machines +// Corporation and others. All Rights Reserved. +// This code is licensed under the terms of the Eclipse Public License (EPL). + +#ifndef CbcHeuristicRINS_H +#define CbcHeuristicRINS_H + +#include "CbcHeuristic.hpp" +// for backward compatibility include 3 other headers +#include "CbcHeuristicRENS.hpp" +#include "CbcHeuristicDINS.hpp" +#include "CbcHeuristicVND.hpp" +/** LocalSearch class + */ + +class CbcHeuristicRINS : public CbcHeuristic { +public: + + // Default Constructor + CbcHeuristicRINS (); + + /* Constructor with model - assumed before cuts + Initial version does not do Lps + */ + CbcHeuristicRINS (CbcModel & model); + + // Copy constructor + CbcHeuristicRINS ( const CbcHeuristicRINS &); + + // Destructor + ~CbcHeuristicRINS (); + + /// Clone + virtual CbcHeuristic * clone() const; + + + /// Assignment operator + CbcHeuristicRINS & operator=(const CbcHeuristicRINS& rhs); + + /// Create C++ lines to get to current state + virtual void generateCpp( FILE * fp) ; + + /// Resets stuff if model changes + virtual void resetModel(CbcModel * model); + + /// update model (This is needed if cliques update matrix etc) + virtual void setModel(CbcModel * model); + + using CbcHeuristic::solution ; + /** returns 0 if no solution, 1 if valid solution. + Sets solution values if good, sets objective value (only if good) + This does Relaxation Induced Neighborhood Search + */ + virtual int solution(double & objectiveValue, + double * newSolution); + /// This version fixes stuff and does IP + int solutionFix(double & objectiveValue, + double * newSolution, + const int * keep); + + /// Sets how often to do it + inline void setHowOften(int value) { + howOften_ = value; + } + /// Used array so we can set + inline char * used() const { + return used_; + } + /// Resets lastNode + inline void setLastNode(int value) { + lastNode_ = value; + } + /// Resets number of solutions + inline void setSolutionCount(int value) { + numberSolutions_ = value; + } + +protected: + // Data + + /// Number of solutions so we can do something at solution + int numberSolutions_; + /// How often to do (code can change) + int howOften_; + /// Number of successes + int numberSuccesses_; + /// Number of tries + int numberTries_; + /** State of fixing continuous variables - + 0 - not tried + +n - this divisor makes small enough + -n - this divisor still not small enough + */ + int stateOfFixing_; + /// Node when last done + int lastNode_; + /// Whether a variable has been in a solution + char * used_; +}; +#endif + |