summaryrefslogtreecommitdiff
path: root/build/Bonmin/include/coin/CbcHeuristicVND.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'build/Bonmin/include/coin/CbcHeuristicVND.hpp')
-rw-r--r--build/Bonmin/include/coin/CbcHeuristicVND.hpp94
1 files changed, 94 insertions, 0 deletions
diff --git a/build/Bonmin/include/coin/CbcHeuristicVND.hpp b/build/Bonmin/include/coin/CbcHeuristicVND.hpp
new file mode 100644
index 0000000..a245ab0
--- /dev/null
+++ b/build/Bonmin/include/coin/CbcHeuristicVND.hpp
@@ -0,0 +1,94 @@
+// $Id: CbcHeuristicVND.hpp 1899 2013-04-09 18:12:08Z stefan $
+// 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).
+
+// edwin 12/5/09 carved out of CbcHeuristicRINS
+
+#ifndef CbcHeuristicVND_H
+#define CbcHeuristicVND_H
+
+#include "CbcHeuristic.hpp"
+
+
+/** LocalSearch class
+ */
+
+class CbcHeuristicVND : public CbcHeuristic {
+public:
+
+ // Default Constructor
+ CbcHeuristicVND ();
+
+ /* Constructor with model - assumed before cuts
+ Initial version does not do Lps
+ */
+ CbcHeuristicVND (CbcModel & model);
+
+ // Copy constructor
+ CbcHeuristicVND ( const CbcHeuristicVND &);
+
+ // Destructor
+ ~CbcHeuristicVND ();
+
+ /// Clone
+ virtual CbcHeuristic * clone() const;
+
+
+ /// Assignment operator
+ CbcHeuristicVND & operator=(const CbcHeuristicVND& 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;
+ }
+ /// base solution array so we can set
+ inline double * baseSolution() const {
+ return baseSolution_;
+ }
+
+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_;
+ /// Node when last done
+ int lastNode_;
+ /// Step size for decomposition
+ int stepSize_;
+ int k_;
+ int kmax_;
+ int nDifferent_;
+ /// Base solution
+ double * baseSolution_;
+};
+
+#endif
+