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# /home/coin/svn-release/Alps-1.4.5/Clp/src/ClpGubMatrix.hpp

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    00001 /* $Id: ClpGubMatrix.hpp 1665 2011-01-04 17:55:54Z lou $ */
    00002 // Copyright (C) 2003, International Business Machines
    00003 // Corporation and others.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005
    00006 #ifndef ClpGubMatrix_H
    00007 #define ClpGubMatrix_H
    00008
    00009
    00010 #include "CoinPragma.hpp"
    00011
    00012 #include "ClpPackedMatrix.hpp"
    00013 class ClpSimplex;
    00022 class ClpGubMatrix : public ClpPackedMatrix {
    00023
    00024 public:
    00028      virtual ClpMatrixBase * reverseOrderedCopy() const;
    00030      virtual CoinBigIndex countBasis(const int * whichColumn,
    00031                                      int & numberColumnBasic);
    00033      virtual void fillBasis(ClpSimplex * model,
    00034                             const int * whichColumn,
    00035                             int & numberColumnBasic,
    00036                             int * row, int * start,
    00037                             int * rowCount, int * columnCount,
    00038                             CoinFactorizationDouble * element);
    00041      virtual void unpack(const ClpSimplex * model, CoinIndexedVector * rowArray,
    00042                          int column) const ;
    00047      virtual void unpackPacked(ClpSimplex * model,
    00048                                CoinIndexedVector * rowArray,
    00049                                int column) const;
    00052      virtual void add(const ClpSimplex * model, CoinIndexedVector * rowArray,
    00053                       int column, double multiplier) const ;
    00055      virtual void add(const ClpSimplex * model, double * array,
    00056                       int column, double multiplier) const;
    00058      virtual void partialPricing(ClpSimplex * model, double start, double end,
    00059                                  int & bestSequence, int & numberWanted);
    00061      virtual int hiddenRows() const;
    00063
    00066
    00067      using ClpPackedMatrix::transposeTimes ;
    00072      virtual void transposeTimes(const ClpSimplex * model, double scalar,
    00073                                  const CoinIndexedVector * x,
    00074                                  CoinIndexedVector * y,
    00075                                  CoinIndexedVector * z) const;
    00081      virtual void transposeTimesByRow(const ClpSimplex * model, double scalar,
    00082                                       const CoinIndexedVector * x,
    00083                                       CoinIndexedVector * y,
    00084                                       CoinIndexedVector * z) const;
    00088      virtual void subsetTransposeTimes(const ClpSimplex * model,
    00089                                        const CoinIndexedVector * x,
    00090                                        const CoinIndexedVector * y,
    00091                                        CoinIndexedVector * z) const;
    00098      virtual int extendUpdated(ClpSimplex * model, CoinIndexedVector * update, int mode);
    00104      virtual void primalExpanded(ClpSimplex * model, int mode);
    00113      virtual void dualExpanded(ClpSimplex * model, CoinIndexedVector * array,
    00114                                double * other, int mode);
    00132      virtual int generalExpanded(ClpSimplex * model, int mode, int & number);
    00136      virtual int updatePivot(ClpSimplex * model, double oldInValue, double oldOutValue);
    00138      virtual void useEffectiveRhs(ClpSimplex * model, bool cheapest = true);
    00142      virtual double * rhsOffset(ClpSimplex * model, bool forceRefresh = false,
    00143                                 bool check = false);
    00156      virtual int synchronize(ClpSimplex * model, int mode);
    00158      virtual void correctSequence(const ClpSimplex * model, int & sequenceIn, int & sequenceOut) ;
    00160
    00161
    00162
    00166      ClpGubMatrix();
    00168      virtual ~ClpGubMatrix();
    00170
    00174      ClpGubMatrix(const ClpGubMatrix&);
    00176      ClpGubMatrix(const CoinPackedMatrix&);
    00179      ClpGubMatrix (const ClpGubMatrix & wholeModel,
    00180                    int numberRows, const int * whichRows,
    00181                    int numberColumns, const int * whichColumns);
    00182      ClpGubMatrix (const CoinPackedMatrix & wholeModel,
    00183                    int numberRows, const int * whichRows,
    00184                    int numberColumns, const int * whichColumns);
    00185
    00187      ClpGubMatrix(CoinPackedMatrix * matrix);
    00188
    00191      ClpGubMatrix(ClpPackedMatrix * matrix, int numberSets,
    00192                   const int * start, const int * end,
    00193                   const double * lower, const double * upper,
    00194                   const unsigned char * status = NULL);
    00195
    00196      ClpGubMatrix& operator=(const ClpGubMatrix&);
    00198      virtual ClpMatrixBase * clone() const ;
    00201      virtual ClpMatrixBase * subsetClone (
    00202           int numberRows, const int * whichRows,
    00203           int numberColumns, const int * whichColumns) const ;
    00205      void redoSet(ClpSimplex * model, int newKey, int oldKey, int iSet);
    00207
    00209
    00210      inline ClpSimplex::Status getStatus(int sequence) const {
    00211           return static_cast<ClpSimplex::Status> (status_[sequence] & 7);
    00212      }
    00213      inline void setStatus(int sequence, ClpSimplex::Status status) {
    00214           unsigned char & st_byte = status_[sequence];
    00215           st_byte = static_cast<unsigned char>(st_byte & ~7);
    00216           st_byte = static_cast<unsigned char>(st_byte | status);
    00217      }
    00219      inline void setFlagged( int sequence) {
    00220           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 64);
    00221      }
    00222      inline void clearFlagged( int sequence) {
    00223           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~64);
    00224      }
    00225      inline bool flagged(int sequence) const {
    00226           return ((status_[sequence] & 64) != 0);
    00227      }
    00229      inline void setAbove( int sequence) {
    00230           unsigned char iStat = status_[sequence];
    00231           iStat = static_cast<unsigned char>(iStat & ~24);
    00232           status_[sequence] = static_cast<unsigned char>(iStat | 16);
    00233      }
    00235      inline void setFeasible( int sequence) {
    00236           unsigned char iStat = status_[sequence];
    00237           iStat = static_cast<unsigned char>(iStat & ~24);
    00238           status_[sequence] = static_cast<unsigned char>(iStat | 8);
    00239      }
    00241      inline void setBelow( int sequence) {
    00242           unsigned char iStat = status_[sequence];
    00243           iStat = static_cast<unsigned char>(iStat & ~24);
    00244           status_[sequence] = iStat;
    00245      }
    00246      inline double weight( int sequence) const {
    00247           int iStat = status_[sequence] & 31;
    00248           iStat = iStat >> 3;
    00249           return static_cast<double> (iStat - 1);
    00250      }
    00252      inline int * start() const {
    00253           return start_;
    00254      }
    00256      inline int * end() const {
    00257           return end_;
    00258      }
    00260      inline double * lower() const {
    00261           return lower_;
    00262      }
    00264      inline double * upper() const {
    00265           return upper_;
    00266      }
    00268      inline int * keyVariable() const {
    00269           return keyVariable_;
    00270      }
    00272      inline int * backward() const {
    00273           return backward_;
    00274      }
    00276      inline int numberSets() const {
    00277           return numberSets_;
    00278      }
    00280      void switchOffCheck();
    00282
    00283
    00284 protected:
    00288
    00289      double sumDualInfeasibilities_;
    00291      double sumPrimalInfeasibilities_;
    00293      double sumOfRelaxedDualInfeasibilities_;
    00295      double sumOfRelaxedPrimalInfeasibilities_;
    00297      double infeasibilityWeight_;
    00299      int * start_;
    00301      int * end_;
    00303      double * lower_;
    00305      double * upper_;
    00307      mutable unsigned char * status_;
    00309      unsigned char * saveStatus_;
    00311      int * savedKeyVariable_;
    00313      int * backward_;
    00315      int * backToPivotRow_;
    00317      double * changeCost_;
    00319      mutable int * keyVariable_;
    00323      mutable int * next_;
    00325      int * toIndex_;
    00326      // Reverse pointer from index to set
    00327      int * fromIndex_;
    00329      ClpSimplex * model_;
    00331      int numberDualInfeasibilities_;
    00333      int numberPrimalInfeasibilities_;
    00339      int noCheck_;
    00341      int numberSets_;
    00343      int saveNumber_;
    00345      int possiblePivotKey_;
    00347      int gubSlackIn_;
    00349      int firstGub_;
    00351      int lastGub_;
    00354      int gubType_;
    00356 };
    00357
    00358 #endif