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# /home/coin/SVN-release/Cgl-0.53.1/Clp/src/ClpPackedMatrix.hpp

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    00001 // Copyright (C) 2002, International Business Machines
    00002 // Corporation and others.  All Rights Reserved.
    00003 #ifndef ClpPackedMatrix_H
    00004 #define ClpPackedMatrix_H
    00005
    00006 #include "CoinPragma.hpp"
    00007
    00008 #include "ClpMatrixBase.hpp"
    00009
    00016 class ClpPackedMatrix2;
    00017 class ClpPackedMatrix3;
    00018 class ClpPackedMatrix : public ClpMatrixBase {
    00019
    00020 public:
    00023
    00024   virtual CoinPackedMatrix * getPackedMatrix() const { return matrix_;}
    00026     virtual bool isColOrdered() const { return matrix_->isColOrdered(); }
    00028   virtual  CoinBigIndex getNumElements() const
    00029   { return matrix_->getNumElements(); }
    00031    virtual int getNumCols() const { return matrix_->getNumCols(); }
    00033   virtual int getNumRows() const { return matrix_->getNumRows(); }
    00034
    00039    virtual const double * getElements() const
    00040   { return matrix_->getElements();}
    00042   inline double * getMutableElements() const
    00043   { return matrix_->getMutableElements();}
    00049    virtual const int * getIndices() const
    00050   { return matrix_->getIndices();}
    00051
    00052    virtual const CoinBigIndex * getVectorStarts() const
    00053   { return matrix_->getVectorStarts();}
    00055    virtual const int * getVectorLengths() const
    00056   { return matrix_->getVectorLengths();}
    00058   virtual int getVectorLength(int index) const
    00059   { return matrix_->getVectorSize(index);}
    00060
    00062   virtual void deleteCols(const int numDel, const int * indDel);
    00064   virtual void deleteRows(const int numDel, const int * indDel);
    00065 #ifndef CLP_NO_VECTOR
    00067   virtual void appendCols(int number, const CoinPackedVectorBase * const * columns);
    00069   virtual void appendRows(int number, const CoinPackedVectorBase * const * rows);
    00070 #endif
    00071
    00075   virtual int appendMatrix(int number, int type,
    00076                            const CoinBigIndex * starts, const int * index,
    00077                            const double * element, int numberOther=-1);
    00082   virtual void replaceVector(const int index,
    00083                        const int numReplace, const double * newElements)
    00084       {matrix_->replaceVector(index,numReplace,newElements);}
    00088   virtual void modifyCoefficient(int row, int column, double newElement,
    00089                            bool keepZero=false)
    00090        {matrix_->modifyCoefficient(row, column, newElement, keepZero);}
    00092   virtual ClpMatrixBase * reverseOrderedCopy() const;
    00094   virtual CoinBigIndex countBasis(ClpSimplex * model,
    00095                                  const int * whichColumn,
    00096                                  int numberRowBasic,
    00097                                   int & numberColumnBasic);
    00099   virtual void fillBasis(ClpSimplex * model,
    00100                                  const int * whichColumn,
    00101                                  int & numberColumnBasic,
    00102                                  int * row, int * start,
    00103                                  int * rowCount, int * columnCount,
    00104                                  double * element);
    00107   virtual int scale(ClpModel * model, const ClpSimplex * baseModel=NULL) const ;
    00110   virtual void scaleRowCopy(ClpModel * model) const ;
    00112   void createScaledMatrix(ClpSimplex * model) const;
    00116   virtual ClpMatrixBase * scaledColumnCopy(ClpModel * model) const ;
    00127   virtual bool allElementsInRange(ClpModel * model,
    00128                                   double smallest, double largest,
    00129                                   int check=15);
    00133   virtual void rangeOfElements(double & smallestNegative, double & largestNegative,
    00134                        double & smallestPositive, double & largestPositive);
    00135
    00138   virtual void unpack(const ClpSimplex * model,CoinIndexedVector * rowArray,
    00139                    int column) const ;
    00144   virtual void unpackPacked(ClpSimplex * model,
    00145                             CoinIndexedVector * rowArray,
    00146                             int column) const;
    00149   virtual void add(const ClpSimplex * model,CoinIndexedVector * rowArray,
    00150                    int column, double multiplier) const ;
    00152   virtual void add(const ClpSimplex * model,double * array,
    00153                    int column, double multiplier) const;
    00155    virtual void releasePackedMatrix() const { }
    00160   virtual CoinBigIndex * dubiousWeights(const ClpSimplex * model,int * inputWeights) const;
    00162   virtual bool canDoPartialPricing() const;
    00164   virtual void partialPricing(ClpSimplex * model, double start, double end,
    00165                       int & bestSequence, int & numberWanted);
    00167   virtual int refresh(ClpSimplex * model);
    00168   // Really scale matrix
    00169   virtual void reallyScale(const double * rowScale, const double * columnScale);
    00175   virtual void setDimensions(int numrows, int numcols);
    00177
    00183   virtual void times(double scalar,
    00184                        const double * x, double * y) const;
    00186   virtual void times(double scalar,
    00187                      const double * x, double * y,
    00188                      const double * rowScale,
    00189                      const double * columnScale) const;
    00193     virtual void transposeTimes(double scalar,
    00194                                 const double * x, double * y) const;
    00196     virtual void transposeTimes(double scalar,
    00197                                 const double * x, double * y,
    00198                                 const double * rowScale,
    00199                                 const double * columnScale,
    00200                                 double * spare=NULL) const;
    00205   virtual void transposeTimes(const ClpSimplex * model, double scalar,
    00206                               const CoinIndexedVector * x,
    00207                               CoinIndexedVector * y,
    00208                               CoinIndexedVector * z) const;
    00213   void transposeTimesByColumn(const ClpSimplex * model, double scalar,
    00214                               const CoinIndexedVector * x,
    00215                               CoinIndexedVector * y,
    00216                               CoinIndexedVector * z) const;
    00222   virtual void transposeTimesByRow(const ClpSimplex * model, double scalar,
    00223                               const CoinIndexedVector * x,
    00224                               CoinIndexedVector * y,
    00225                               CoinIndexedVector * z) const;
    00229   virtual void subsetTransposeTimes(const ClpSimplex * model,
    00230                                     const CoinIndexedVector * x,
    00231                                     const CoinIndexedVector * y,
    00232                                     CoinIndexedVector * z) const;
    00235   virtual bool canCombine(const ClpSimplex * model,
    00236                           const CoinIndexedVector * pi) const;
    00238   virtual void transposeTimes2(const ClpSimplex * model,
    00239                                const CoinIndexedVector * pi1, CoinIndexedVector * dj1,
    00240                                const CoinIndexedVector * pi2, CoinIndexedVector * dj2,
    00241                                CoinIndexedVector * spare,
    00242                                double referenceIn, double devex,
    00243                                // Array for exact devex to say what is in reference framework
    00244                                unsigned int * reference,
    00245                                double * weights, double scaleFactor);
    00247   virtual void subsetTimes2(const ClpSimplex * model,
    00248                                 CoinIndexedVector * dj1,
    00249                                const CoinIndexedVector * pi2, CoinIndexedVector * dj2,
    00250                                double referenceIn, double devex,
    00251                                // Array for exact devex to say what is in reference framework
    00252                                unsigned int * reference,
    00253                                double * weights, double scaleFactor);
    00255   void useEffectiveRhs(ClpSimplex * model);
    00257
    00260
    00261   inline CoinPackedMatrix * matrix() const { return matrix_;}
    00265   inline void setMatrixNull()
    00266   { matrix_=NULL;}
    00268   inline void makeSpecialColumnCopy()
    00269   { flags_ |= 8;}
    00271   void releaseSpecialColumnCopy();
    00273   inline bool zeros() const
    00274   { return ((flags_&1)!=0);}
    00276   inline bool wantsSpecialColumnCopy() const
    00277   { return ((flags_&8)!=0);}
    00279   inline int flags() const
    00280   { return flags_;}
    00282
    00283
    00287    ClpPackedMatrix();
    00289    virtual ~ClpPackedMatrix();
    00291
    00295    ClpPackedMatrix(const ClpPackedMatrix&);
    00297    ClpPackedMatrix(const CoinPackedMatrix&);
    00300   ClpPackedMatrix (const ClpPackedMatrix & wholeModel,
    00301                     int numberRows, const int * whichRows,
    00302                     int numberColumns, const int * whichColumns);
    00303   ClpPackedMatrix (const CoinPackedMatrix & wholeModel,
    00304                     int numberRows, const int * whichRows,
    00305                     int numberColumns, const int * whichColumns);
    00306
    00308    ClpPackedMatrix(CoinPackedMatrix * matrix);
    00309
    00310    ClpPackedMatrix& operator=(const ClpPackedMatrix&);
    00312   virtual ClpMatrixBase * clone() const ;
    00314   virtual void copy(const ClpPackedMatrix * from);
    00317   virtual ClpMatrixBase * subsetClone (
    00318                     int numberRows, const int * whichRows,
    00319                     int numberColumns, const int * whichColumns) const ;
    00321   void specialRowCopy(ClpSimplex * model,const ClpMatrixBase * rowCopy);
    00323   void specialColumnCopy(ClpSimplex * model);
    00325   virtual void correctSequence(const ClpSimplex * model,int & sequenceIn, int & sequenceOut) ;
    00327 private:
    00329   int gutsOfTransposeTimesUnscaled(const double * COIN_RESTRICT pi,
    00330                                     int * COIN_RESTRICT index,
    00331                                     double * COIN_RESTRICT array,
    00332                                     const double tolerance) const;
    00334   int gutsOfTransposeTimesScaled(const double * COIN_RESTRICT pi,
    00335                                  const double * COIN_RESTRICT columnScale,
    00336                                  int * COIN_RESTRICT index,
    00337                                  double * COIN_RESTRICT array,
    00338                                  const double tolerance) const;
    00340   int gutsOfTransposeTimesByRowGE3(const CoinIndexedVector * COIN_RESTRICT piVector,
    00341                                    int * COIN_RESTRICT index,
    00342                                    double * COIN_RESTRICT output,
    00343                                    int * COIN_RESTRICT lookup,
    00344                                    char * COIN_RESTRICT marked,
    00345                                    const double tolerance,
    00346                                    const double scalar) const;
    00348   void gutsOfTransposeTimesByRowEQ2(const CoinIndexedVector * piVector, CoinIndexedVector * output,
    00349                                    CoinIndexedVector * spareVector, const double tolerance, const double scalar) const;
    00351   void gutsOfTransposeTimesByRowEQ1(const CoinIndexedVector * piVector, CoinIndexedVector * output,
    00352                                    const double tolerance, const double scalar) const;
    00354   void clearCopies();
    00355
    00356
    00357 protected:
    00359   void checkFlags(int type) const;
    00363
    00364   CoinPackedMatrix * matrix_;
    00366   int numberActiveColumns_;
    00373   int flags_;
    00375   ClpPackedMatrix2 * rowCopy_;
    00377   ClpPackedMatrix3 * columnCopy_;
    00379 };
    00380 #ifdef THREAD
    00381 #include <pthread.h>
    00382 typedef struct {
    00383   double acceptablePivot;
    00384   const ClpSimplex * model;
    00385   double * spare;
    00386   int * spareIndex;
    00387   double * arrayTemp;
    00388   int * indexTemp;
    00389   int * numberInPtr;
    00390   double * bestPossiblePtr;
    00391   double * upperThetaPtr;
    00392   int * posFreePtr;
    00393   double * freePivotPtr;
    00394   int * numberOutPtr;
    00395   const unsigned short * count;
    00396   const double * pi;
    00397   const CoinBigIndex * rowStart;
    00398   const double * element;
    00399   const unsigned short * column;
    00400   int offset;
    00401   int numberInRowArray;
    00402   int numberLook;
    00403 } dualColumn0Struct;
    00404 #endif
    00405 class ClpPackedMatrix2 {
    00406
    00407 public:
    00413   void transposeTimes(const ClpSimplex * model,
    00414                       const CoinPackedMatrix * rowCopy,
    00415                       const CoinIndexedVector * x,
    00416                       CoinIndexedVector * spareArray,
    00417                       CoinIndexedVector * z) const;
    00419   inline bool usefulInfo() const
    00420   { return rowStart_!=NULL;}
    00422
    00423
    00427    ClpPackedMatrix2();
    00429    ClpPackedMatrix2(ClpSimplex * model,const CoinPackedMatrix * rowCopy);
    00431    virtual ~ClpPackedMatrix2();
    00433
    00437    ClpPackedMatrix2(const ClpPackedMatrix2&);
    00438    ClpPackedMatrix2& operator=(const ClpPackedMatrix2&);
    00440
    00441
    00442 protected:
    00446
    00447   int numberBlocks_;
    00449   int numberRows_;
    00451   int * offset_;
    00453   mutable unsigned short * count_;
    00455   mutable CoinBigIndex * rowStart_;
    00457   unsigned short * column_;
    00459   double * work_;
    00460 #ifdef THREAD
    00461   pthread_t * threadId_;
    00462   dualColumn0Struct * info_;
    00463 #endif
    00464
    00465 };
    00466 typedef struct {
    00467   CoinBigIndex startElements_; // point to data
    00468   int startIndices_; // point to column_
    00469   int numberInBlock_;
    00470   int numberPrice_; // at beginning
    00471   int numberElements_; // number elements per column
    00472 } blockStruct;
    00473 class ClpPackedMatrix3 {
    00474
    00475 public:
    00481   void transposeTimes(const ClpSimplex * model,
    00482                       const double * pi,
    00483                       CoinIndexedVector * output) const;
    00485   void transposeTimes2(const ClpSimplex * model,
    00486                        const double * pi, CoinIndexedVector * dj1,
    00487                        const double * piWeight,
    00488                        double referenceIn, double devex,
    00489                        // Array for exact devex to say what is in reference framework
    00490                        unsigned int * reference,
    00491                        double * weights, double scaleFactor);
    00493
    00494
    00498    ClpPackedMatrix3();
    00500    ClpPackedMatrix3(ClpSimplex * model,const CoinPackedMatrix * columnCopy);
    00502    virtual ~ClpPackedMatrix3();
    00504
    00508    ClpPackedMatrix3(const ClpPackedMatrix3&);
    00509    ClpPackedMatrix3& operator=(const ClpPackedMatrix3&);
    00511
    00514   void sortBlocks(const ClpSimplex * model);
    00516   void swapOne(const ClpSimplex * model,const ClpPackedMatrix * matrix,
    00517                 int iColumn);
    00519
    00520
    00521 protected:
    00525
    00526   int numberBlocks_;
    00528   int numberColumns_;
    00530   int * column_;
    00532   CoinBigIndex * start_;
    00534   int * row_;
    00536   double * element_;
    00538   blockStruct * block_;
    00540 };
    00541
    00542 #endif