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# /home/coin/svn-release/Alps-1.5.2/Clp/src/CoinAbcBaseFactorization.hpp

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    00001 /* $Id: CoinAbcBaseFactorization.hpp 1910 2013-01-27 02:00:13Z stefan $ */
    00002 // Copyright (C) 2002, International Business Machines
    00003 // Corporation and others, Copyright (C) 2012, FasterCoin.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005
    00006 /*
    00007    Authors
    00008
    00009    John Forrest
    00010
    00011  */
    00018 #include "AbcCommon.hpp"
    00019 #include "CoinAbcHelperFunctions.hpp"
    00020 #if ABC_PARALLEL
    00021 #define FACTOR_CPU 4
    00022 #else
    00023 #define FACTOR_CPU 1
    00024 #endif
    00025 #define LARGE_SET COIN_INT_MAX-10
    00026 #define LARGE_UNSET (LARGE_SET+1)
    00027
    00028 class CoinAbcTypeFactorization  : public
    00029 CoinAbcAnyFactorization
    00030 {
    00031    friend void CoinAbcFactorizationUnitTest( const std::string & mpsDir );
    00032
    00033 public:
    00034
    00037
    00038     CoinAbcTypeFactorization (  );
    00040   CoinAbcTypeFactorization ( const CoinAbcTypeFactorization &other);
    00042   CoinAbcTypeFactorization ( const CoinFactorization &other);
    00043
    00045   virtual ~CoinAbcTypeFactorization (  );
    00047   virtual CoinAbcAnyFactorization * clone() const ;
    00049   void almostDestructor();
    00051   void show_self (  ) const;
    00053   void sort (  ) const;
    00055     CoinAbcTypeFactorization & operator = ( const CoinAbcTypeFactorization & other );
    00057
    00060
    00061   CoinSimplexDouble conditionNumber() const;
    00062
    00064
    00067
    00068   inline CoinSimplexInt *permute (  ) const {
    00069     return NULL; //permute_.array();
    00070   }
    00072   virtual inline CoinSimplexInt * indices() const
    00073   { return indexRowU_.array();}
    00075   virtual inline CoinSimplexInt *pivotColumn (  ) const {
    00076     return pivotColumn_.array();
    00077   }
    00079   virtual inline CoinFactorizationDouble *pivotRegion (  ) const {
    00080     return pivotRegionAddress_;
    00081   }
    00082 #if ABC_SMALL<2
    00084   inline CoinBigIndex * startRowL() const
    00085   { return startRowL_.array();}
    00086 #endif
    00087
    00089   inline CoinBigIndex * startColumnL() const
    00090   { return startColumnL_.array();}
    00091
    00092 #if ABC_SMALL<2
    00094   inline CoinSimplexInt * indexColumnL() const
    00095   { return indexColumnL_.array();}
    00096 #endif
    00097
    00099   inline CoinSimplexInt * indexRowL() const
    00100   { return indexRowL_.array();}
    00101
    00102 #if ABC_SMALL<2
    00104   inline CoinFactorizationDouble * elementByRowL() const
    00105   { return elementByRowL_.array();}
    00106 #endif
    00107
    00110   inline CoinSimplexInt * pivotLinkedBackwards() const
    00111   { return firstCount_.array()+numberRows_+1;}
    00112   inline CoinSimplexInt * pivotLinkedForwards() const
    00113   { return firstCount_.array()+2*numberRows_+3;}
    00114   inline CoinSimplexInt * pivotLOrder() const
    00115   { return firstCount_.array();}
    00116 #if ABC_SMALL<0
    00117 #define ABC_USE_FUNCTION_POINTERS 0
    00118 #define SMALL_PERMUTE
    00119 #endif
    00120 #ifdef ABC_USE_FUNCTION_POINTERS
    00121   typedef void (*scatterUpdate) (int,CoinFactorizationDouble,const CoinFactorizationDouble *, CoinFactorizationDouble *);
    00122 #if ABC_USE_FUNCTION_POINTERS
    00123   typedef struct {
    00124     scatterUpdate functionPointer;
    00125     CoinBigIndex offset;
    00126     int number;
    00127   } scatterStruct;
    00128 #else
    00129   typedef struct {
    00130     CoinBigIndex offset;
    00131     int number;
    00132   } scatterStruct;
    00133 #endif
    00135   inline scatterStruct * scatterUColumn() const
    00136   { return scatterPointersUColumnAddress_;}
    00137 #endif
    00138
    00140
    00143   inline CoinSimplexInt * firstCount() const
    00144   { return firstCount_.array();}
    00145
    00147   inline CoinSimplexInt * nextCount() const
    00148   { return firstCount_.array()+numberRows_+2;}
    00149
    00151   inline CoinSimplexInt * lastCount() const
    00152   { return firstCount_.array()+3*numberRows_+2;}
    00153
    00155   inline CoinSimplexInt numberRowsExtra (  ) const {
    00156     return numberRowsExtra_;
    00157   }
    00159   inline CoinBigIndex numberL() const
    00160   { return numberL_;}
    00161
    00163   inline CoinBigIndex baseL() const
    00164   { return baseL_;}
    00166   inline CoinSimplexInt maximumRowsExtra (  ) const {
    00167     return maximumRowsExtra_;
    00168   }
    00170   virtual inline CoinBigIndex numberElements (  ) const {
    00171     return totalElements_;
    00172   }
    00174   inline CoinSimplexInt numberForrestTomlin (  ) const {
    00175     return numberInColumn_.array()[numberRowsExtra_];
    00176   }
    00178   CoinSimplexDouble adjustedAreaFactor() const;
    00180   inline CoinSimplexInt messageLevel (  ) const {
    00181     return messageLevel_ ;
    00182   }
    00183   void messageLevel (  CoinSimplexInt value );
    00185   virtual void maximumPivots (  CoinSimplexInt value );
    00186
    00187 #if ABC_SMALL<4
    00189   inline CoinSimplexInt denseThreshold() const
    00190     { return denseThreshold_;}
    00192   inline void setDenseThreshold(CoinSimplexInt value)
    00193     { denseThreshold_ = value;}
    00194 #endif
    00196   CoinSimplexDouble maximumCoefficient() const;
    00197 #if 0
    00199   inline bool forrestTomlin() const
    00200   { return doForrestTomlin_;}
    00201   inline void setForrestTomlin(bool value)
    00202   { doForrestTomlin_=value;}
    00203 #endif
    00205   inline bool spaceForForrestTomlin() const
    00206   {
    00207     CoinBigIndex start = lastEntryByColumnU_;
    00208     CoinBigIndex space = lengthAreaU_ - ( start + numberRowsExtra_ );
    00209     return (space>=0); //&&doForrestTomlin_;
    00210   }
    00212
    00215
    00216
    00218   inline CoinBigIndex numberElementsU (  ) const {
    00219     return lengthU_;
    00220   }
    00222   inline void setNumberElementsU(CoinBigIndex value)
    00223   { lengthU_ = value; }
    00225   inline CoinBigIndex lengthAreaU (  ) const {
    00226     return lengthAreaU_;
    00227   }
    00229   inline CoinBigIndex numberElementsL (  ) const {
    00230     return lengthL_;
    00231   }
    00233   inline CoinBigIndex lengthAreaL (  ) const {
    00234     return lengthAreaL_;
    00235   }
    00237   inline CoinBigIndex numberElementsR (  ) const {
    00238     return lengthR_;
    00239   }
    00241   inline CoinBigIndex numberCompressions() const
    00242   { return numberCompressions_;}
    00244   //virtual CoinSimplexInt * pivotRow() const;
    00246   //virtual CoinFactorizationDouble * workArea() const;
    00248   //virtual CoinSimplexInt * intWorkArea() const;
    00250   virtual inline CoinBigIndex * starts() const
    00251   { return startColumnU_.array();}
    00253   virtual inline CoinSimplexInt * numberInRow() const
    00254   { return numberInRow_.array();}
    00256   virtual inline CoinSimplexInt * numberInColumn() const
    00257   { return numberInColumn_.array();}
    00259   virtual inline CoinFactorizationDouble * elements() const
    00260   { return elementU_.array();}
    00262   inline CoinBigIndex * startColumnR() const
    00263   {return reinterpret_cast<CoinBigIndex *>(firstCount_.array()+3*numberRows_+4);}
    00265   inline CoinFactorizationDouble * elementU() const
    00266   { return elementU_.array();}
    00268   inline CoinSimplexInt * indexRowU() const
    00269   { return indexRowU_.array();}
    00271   inline CoinBigIndex * startColumnU() const
    00272   { return startColumnU_.array();}
    00273 #if COIN_BIG_DOUBLE==1
    00275   void toLongArray(CoinIndexedVector * vector,int which) const;
    00277   void fromLongArray(CoinIndexedVector * vector) const;
    00279   void fromLongArray(int which) const;
    00281   long double * denseVector(CoinIndexedVector * vector) const;
    00283   long double * denseVector(CoinIndexedVector & vector) const;
    00285   const long double * denseVector(const CoinIndexedVector * vector) const;
    00287   const long double * denseVector(const CoinIndexedVector & vector) const;
    00289   void scan(CoinIndexedVector * vector) const;
    00291   void clearHiddenArrays();
    00292 #else
    00294   inline double * denseVector(CoinIndexedVector * vector) const
    00295   {return vector->denseVector();}
    00296   inline double * denseVector(CoinIndexedVector & vector) const
    00297   {return vector.denseVector();}
    00299   inline const double * denseVector(const CoinIndexedVector * vector) const
    00300   {return vector->denseVector();}
    00301   inline const double * denseVector(const CoinIndexedVector & vector) const
    00302   {return vector.denseVector();}
    00304   inline void toLongArray(CoinIndexedVector * vector,int which) const {}
    00306   inline void fromLongArray(CoinIndexedVector * vector) const {}
    00308   inline void fromLongArray(int which) const {}
    00310   inline void scan(CoinIndexedVector * vector) const
    00311   {vector->scan(0,numberRows_,zeroTolerance_);}
    00312 #endif
    00313 #ifdef ABC_ORDERED_FACTORIZATION
    00315   void permuteInForFtran(CoinIndexedVector & regionSparse,bool full=false) const ;
    00317   void permuteInForBtranAndMultiply(CoinIndexedVector & regionSparse, bool full=false) const ;
    00319   void permuteOutForBtran(CoinIndexedVector & regionSparse) const ;
    00320 #endif
    00321
    00326   //inline CoinSimplexInt persistenceFlag() const
    00327   //{ return persistenceFlag_;}
    00329
    00332 #if 0
    00333
    00337   virtual int checkReplace ( const AbcSimplex * model,
    00338                       CoinIndexedVector * regionSparse,
    00339                       int pivotRow,
    00340                       CoinSimplexDouble & pivotCheck,
    00341                              double acceptablePivot = 1.0e-8);
    00346   virtual CoinSimplexInt replaceColumn ( CoinIndexedVector * regionSparse,
    00347                       CoinSimplexInt pivotRow,
    00348                       CoinSimplexDouble pivotCheck ,
    00349                       bool skipBtranU=false,
    00350                       CoinSimplexDouble acceptablePivot=1.0e-8);
    00351 #endif
    00352
    00356   virtual
    00357 #ifdef ABC_LONG_FACTORIZATION
    00358   long
    00359 #endif
    00360   double checkReplacePart1 (  CoinIndexedVector * regionSparse,
    00361                                      int pivotRow);
    00366   virtual
    00367 #ifdef ABC_LONG_FACTORIZATION
    00368   long
    00369 #endif
    00370   double checkReplacePart1 (  CoinIndexedVector * regionSparse,
    00371                                       CoinIndexedVector * partialUpdate,
    00372                                      int pivotRow);
    00373 #ifdef MOVE_REPLACE_PART1A
    00374
    00378   virtual void checkReplacePart1a (  CoinIndexedVector * regionSparse,
    00379                                      int pivotRow);
    00380   virtual
    00381 #ifdef ABC_LONG_FACTORIZATION
    00382   long
    00383 #endif
    00384   double checkReplacePart1b (  CoinIndexedVector * regionSparse,
    00385                                      int pivotRow);
    00386 #endif
    00387
    00389   virtual int checkReplacePart2 ( int pivotRow,
    00390                                   CoinSimplexDouble btranAlpha,
    00391                                   double ftranAlpha,
    00392 #ifdef ABC_LONG_FACTORIZATION
    00393                                   long
    00394 #endif
    00395                                   double ftAlpha,
    00396                                   double acceptablePivot = 1.0e-8);
    00399   virtual void replaceColumnPart3 ( const AbcSimplex * model,
    00400                       CoinIndexedVector * regionSparse,
    00401                       CoinIndexedVector * tableauColumn,
    00402                       int pivotRow,
    00403 #ifdef ABC_LONG_FACTORIZATION
    00404                                     long
    00405 #endif
    00406                        double alpha );
    00409   virtual void replaceColumnPart3 ( const AbcSimplex * model,
    00410                                     CoinIndexedVector * regionSparse,
    00411                                     CoinIndexedVector * tableauColumn,
    00412                                     CoinIndexedVector * partialUpdate,
    00413                                     int pivotRow,
    00414 #ifdef ABC_LONG_FACTORIZATION
    00415                                   long
    00416 #endif
    00417                                     double alpha );
    00418 #ifdef EARLY_FACTORIZE
    00420   virtual int replaceColumns ( const AbcSimplex * model,
    00421                                CoinIndexedVector & stuff,
    00422                                int firstPivot,int lastPivot,bool cleanUp);
    00423 #endif
    00425   void updatePartialUpdate(CoinIndexedVector & partialUpdate);
    00427   inline virtual bool wantsTableauColumn() const
    00428   {return false;}
    00432   int replaceColumnU ( CoinIndexedVector * regionSparse,
    00433                        CoinBigIndex * deletedPosition,
    00434                        CoinSimplexInt * deletedColumns,
    00435                        CoinSimplexInt pivotRow);
    00437
    00440
    00441
    00442
    00448   virtual CoinSimplexInt updateColumnFT ( CoinIndexedVector & regionSparse);
    00449   virtual int updateColumnFTPart1 ( CoinIndexedVector & regionSparse) ;
    00450   virtual void updateColumnFTPart2 ( CoinIndexedVector & regionSparse) ;
    00454   virtual void updateColumnFT ( CoinIndexedVector & regionSparseFT,
    00455                                 CoinIndexedVector & partialUpdate,
    00456                                 int which);
    00459   virtual CoinSimplexInt updateColumn ( CoinIndexedVector & regionSparse) const;
    00465  virtual CoinSimplexInt updateTwoColumnsFT ( CoinIndexedVector & regionFT,
    00466                                      CoinIndexedVector & regionOther);
    00471   virtual CoinSimplexInt updateColumnTranspose ( CoinIndexedVector & regionSparse) const;
    00473   virtual void updateFullColumn ( CoinIndexedVector & regionSparse) const;
    00475   virtual void updateFullColumnTranspose ( CoinIndexedVector & regionSparse) const;
    00477   virtual void updateWeights ( CoinIndexedVector & regionSparse) const;
    00479   virtual void updateColumnCpu ( CoinIndexedVector & regionSparse,int whichCpu) const;
    00481   virtual void updateColumnTransposeCpu ( CoinIndexedVector & regionSparse,int whichCpu) const;
    00482   void unpack ( CoinIndexedVector * regionFrom,
    00483                 CoinIndexedVector * regionTo) const;
    00484   void pack ( CoinIndexedVector * regionFrom,
    00485                 CoinIndexedVector * regionTo) const;
    00487   inline void goSparse() {}
    00488   void goSparse2();
    00489 #ifndef NDEBUG
    00490   virtual void checkMarkArrays() const;
    00491 #endif
    00492 #if ABC_SMALL<2
    00493
    00494   inline CoinSimplexInt sparseThreshold ( ) const
    00495   { return sparseThreshold_;}
    00496 #endif
    00497
    00498   void sparseThreshold ( CoinSimplexInt value );
    00500
    00501
    00505
    00506   inline void clearArrays()
    00507   { gutsOfDestructor();}
    00509
    00510
    00511   void checkSparse();
    00513   void gutsOfDestructor(CoinSimplexInt type=1);
    00515   void gutsOfInitialize(CoinSimplexInt type);
    00516   void gutsOfCopy(const CoinAbcTypeFactorization &other);
    00517
    00519   void resetStatistics();
    00520   void printRegion(const CoinIndexedVector & vector, const char * where) const;
    00521
    00523
    00525
    00526   virtual void getAreas ( CoinSimplexInt numberRows,
    00527                   CoinSimplexInt numberColumns,
    00528                   CoinBigIndex maximumL,
    00529                   CoinBigIndex maximumU );
    00530
    00532   virtual void preProcess ( );
    00533   void preProcess (CoinSimplexInt );
    00535   double preProcess3 ( );
    00536   void preProcess4 ( );
    00538   virtual CoinSimplexInt factor (AbcSimplex * model);
    00539 #ifdef EARLY_FACTORIZE
    00541   virtual int factorize (AbcSimplex * model, CoinIndexedVector & stuff);
    00542 #endif
    00544   virtual void postProcess(const CoinSimplexInt * sequence, CoinSimplexInt * pivotVariable);
    00546   virtual void makeNonSingular(CoinSimplexInt * sequence);
    00547 protected:
    00550   CoinSimplexInt factorSparse (  );
    00553   CoinSimplexInt factorDense (  );
    00554
    00556   bool pivotOneOtherRow ( CoinSimplexInt pivotRow,
    00557                           CoinSimplexInt pivotColumn );
    00559   bool pivotRowSingleton ( CoinSimplexInt pivotRow,
    00560                            CoinSimplexInt pivotColumn );
    00562   void pivotColumnSingleton ( CoinSimplexInt pivotRow,
    00563                               CoinSimplexInt pivotColumn );
    00565   void afterPivot( CoinSimplexInt pivotRow,
    00566                               CoinSimplexInt pivotColumn );
    00568   int wantToGoDense();
    00569
    00574   bool getColumnSpace ( CoinSimplexInt iColumn,
    00575                         CoinSimplexInt extraNeeded );
    00576
    00579   bool reorderU();
    00583   bool getColumnSpaceIterateR ( CoinSimplexInt iColumn, CoinFactorizationDouble value,
    00584                                CoinSimplexInt iRow);
    00590   CoinBigIndex getColumnSpaceIterate ( CoinSimplexInt iColumn, CoinFactorizationDouble value,
    00591                                CoinSimplexInt iRow);
    00595   bool getRowSpace ( CoinSimplexInt iRow, CoinSimplexInt extraNeeded );
    00596
    00600   bool getRowSpaceIterate ( CoinSimplexInt iRow,
    00601                             CoinSimplexInt extraNeeded );
    00603   void checkConsistency (  );
    00604 //#define CHECK_LINKS
    00605 #ifdef CHECK_LINKS
    00606   void checkLinks(int x=0);
    00607 #else
    00608 #  define checkLinks(x)
    00609 #endif
    00611   inline void addLink ( CoinSimplexInt index, CoinSimplexInt count ) {
    00612     CoinSimplexInt * COIN_RESTRICT nextCount = nextCountAddress_;
    00613     CoinSimplexInt * COIN_RESTRICT firstCount = this->firstCount();
    00614     CoinSimplexInt * COIN_RESTRICT lastCount = lastCountAddress_;
    00615     CoinSimplexInt next = firstCount[count];
    00616     firstCount[count] = index;
    00617     nextCount[index] = next;
    00618     lastCount[index] = count-numberRows_-2; // points to firstCount[count]
    00619     if (next>=0)
    00620       lastCount[next] = index;
    00621   }
    00623   inline void deleteLink ( CoinSimplexInt index ) {
    00624     CoinSimplexInt * COIN_RESTRICT nextCount = nextCountAddress_;
    00625     CoinSimplexInt * COIN_RESTRICT lastCount = lastCountAddress_;
    00626     CoinSimplexInt next = nextCount[index];
    00627     CoinSimplexInt last = lastCount[index];
    00628     assert (next!=index);
    00629     assert (last!=index);
    00630     if (next>=0)
    00631       lastCount[next] = last;
    00632     if (last>=0) {
    00633       nextCount[last] = next;
    00634     } else {
    00635       int count=last+numberRows_+2;
    00636       CoinSimplexInt * COIN_RESTRICT firstCount = this->firstCount();
    00637       firstCount[count]=next;
    00638     }
    00639   }
    00641   inline void modifyLink ( CoinSimplexInt index, CoinSimplexInt count ) {
    00642     CoinSimplexInt * COIN_RESTRICT nextCount = nextCountAddress_;
    00643     CoinSimplexInt * COIN_RESTRICT lastCount = lastCountAddress_;
    00644     CoinSimplexInt * COIN_RESTRICT firstCount = this->firstCount();
    00645     CoinSimplexInt next2 = firstCount[count];
    00646     if (next2==index)
    00647       return;
    00648     firstCount[count] = index;
    00649     CoinSimplexInt next = nextCount[index];
    00650     CoinSimplexInt last = lastCount[index];
    00651     assert (next!=index);
    00652     assert (last!=index);
    00653     nextCount[index] = next2;
    00654     lastCount[index] = count-numberRows_-2; // points to firstCount[count]
    00655     if (next>=0)
    00656       lastCount[next] = last;
    00657     if (next2>=0)
    00658       lastCount[next2] = index;
    00659     if (last>=0) {
    00660       nextCount[last] = next;
    00661     } else {
    00662       int count=last+numberRows_+2;
    00663       firstCount[count]=next;
    00664     }
    00665   }
    00667   void separateLinks();
    00668   void separateLinks(CoinSimplexInt,CoinSimplexInt);
    00670   void cleanup (  );
    00672   void doAddresses();
    00673
    00675   void updateColumnL ( CoinIndexedVector * region
    00676 #if ABC_SMALL<2
    00677                        , CoinAbcStatistics & statistics
    00678 #endif
    00679 #if ABC_PARALLEL
    00680                        ,int whichSparse=0
    00681 #endif
    00682                        ) const;
    00684   void updateColumnLDensish ( CoinIndexedVector * region ) const;
    00686   void updateColumnLDense ( CoinIndexedVector * region ) const;
    00688   void updateColumnLSparse ( CoinIndexedVector * region
    00689 #if ABC_PARALLEL
    00690                              ,int whichSparse
    00691 #endif
    00692                              ) const;
    00693
    00695   void updateColumnR ( CoinIndexedVector * region
    00696 #if ABC_SMALL<2
    00697                        , CoinAbcStatistics & statistics
    00698 #endif
    00699 #if ABC_PARALLEL
    00700                        ,int whichSparse=0
    00701 #endif
    00702                        ) const;
    00704   bool storeFT(
    00705 #if ABC_SMALL<3
    00706                const
    00707 #endif
    00708                CoinIndexedVector * regionFT);
    00710   void updateColumnU ( CoinIndexedVector * region
    00711 #if ABC_SMALL<2
    00712                        , CoinAbcStatistics & statistics
    00713 #endif
    00714 #if ABC_PARALLEL
    00715                        ,int whichSparse=0
    00716 #endif
    00717                        ) const;
    00718
    00720   void updateColumnUSparse ( CoinIndexedVector * regionSparse
    00721 #if ABC_PARALLEL
    00722                              ,int whichSparse
    00723 #endif
    00724                              ) const;
    00726   void updateColumnUDensish (  CoinIndexedVector * regionSparse) const;
    00728   void updateColumnUDense (  CoinIndexedVector * regionSparse) const;
    00730   void updateTwoColumnsUDensish (
    00731                                  CoinSimplexInt & numberNonZero1,
    00732                                  CoinFactorizationDouble * COIN_RESTRICT region1,
    00733                                  CoinSimplexInt * COIN_RESTRICT index1,
    00734                                  CoinSimplexInt & numberNonZero2,
    00735                                  CoinFactorizationDouble * COIN_RESTRICT region2,
    00736                                  CoinSimplexInt * COIN_RESTRICT index2) const;
    00738   void updateColumnPFI ( CoinIndexedVector * regionSparse) const;
    00740   void updateColumnTransposePFI ( CoinIndexedVector * region) const;
    00743   void updateColumnTransposeU ( CoinIndexedVector * region,
    00744                                 CoinSimplexInt smallestIndex
    00745 #if ABC_SMALL<2
    00746                        , CoinAbcStatistics & statistics
    00747 #endif
    00748 #if ABC_PARALLEL
    00749                   ,int whichCpu
    00750 #endif
    00751                                 ) const;
    00754   void updateColumnTransposeUDensish ( CoinIndexedVector * region,
    00755                                        CoinSimplexInt smallestIndex) const;
    00758   void updateColumnTransposeUSparse ( CoinIndexedVector * region
    00759 #if ABC_PARALLEL
    00760                                                 ,int whichSparse
    00761 #endif
    00762                                       ) const;
    00765   void updateColumnTransposeUByColumn ( CoinIndexedVector * region,
    00766                                         CoinSimplexInt smallestIndex) const;
    00767
    00769   void updateColumnTransposeR ( CoinIndexedVector * region
    00770 #if ABC_SMALL<2
    00771                        , CoinAbcStatistics & statistics
    00772 #endif
    00773                                 ) const;
    00775   void updateColumnTransposeRDensish ( CoinIndexedVector * region ) const;
    00777   void updateColumnTransposeRSparse ( CoinIndexedVector * region ) const;
    00778
    00780   void updateColumnTransposeL ( CoinIndexedVector * region
    00781 #if ABC_SMALL<2
    00782                        , CoinAbcStatistics & statistics
    00783 #endif
    00784 #if ABC_PARALLEL
    00785                                       ,int whichSparse
    00786 #endif
    00787                                 ) const;
    00789   void updateColumnTransposeLDensish ( CoinIndexedVector * region ) const;
    00791   void updateColumnTransposeLByRow ( CoinIndexedVector * region ) const;
    00793   void updateColumnTransposeLSparse ( CoinIndexedVector * region
    00794 #if ABC_PARALLEL
    00795                                                 ,int whichSparse
    00796 #endif
    00797                                       ) const;
    00798 public:
    00803   CoinSimplexInt replaceColumnPFI ( CoinIndexedVector * regionSparse,
    00804                          CoinSimplexInt pivotRow, CoinSimplexDouble alpha);
    00805 protected:
    00808   CoinSimplexInt checkPivot(CoinSimplexDouble saveFromU, CoinSimplexDouble oldPivot) const;
    00810   int pivot ( CoinSimplexInt pivotRow,
    00811                CoinSimplexInt pivotColumn,
    00812                CoinBigIndex pivotRowPosition,
    00813                CoinBigIndex pivotColumnPosition,
    00814                CoinFactorizationDouble * COIN_RESTRICT work,
    00815                CoinSimplexUnsignedInt * COIN_RESTRICT workArea2,
    00816                CoinSimplexInt increment2,
    00817                int * COIN_RESTRICT markRow );
    00818   int pivot ( CoinSimplexInt & pivotRow,
    00819                CoinSimplexInt & pivotColumn,
    00820                CoinBigIndex pivotRowPosition,
    00821                CoinBigIndex pivotColumnPosition,
    00822                int * COIN_RESTRICT markRow );
    00823 #if ABC_SMALL<2
    00824 #define CONVERTROW 2
    00825 #elif ABC_SMALL<4
    00826 #else
    00827 #undef ABC_DENSE_CODE
    00828 #define ABC_DENSE_CODE 0
    00829 #endif
    00830
    00832
    00833 protected:
    00834
    00837   CoinSimplexInt * pivotColumnAddress_;
    00838   CoinSimplexInt * permuteAddress_;
    00839   CoinFactorizationDouble * pivotRegionAddress_;
    00840   CoinFactorizationDouble * elementUAddress_;
    00841   CoinSimplexInt * indexRowUAddress_;
    00842   CoinSimplexInt * numberInColumnAddress_;
    00843   CoinSimplexInt * numberInColumnPlusAddress_;
    00844 #ifdef ABC_USE_FUNCTION_POINTERS
    00846   scatterStruct * scatterPointersUColumnAddress_;
    00847   CoinFactorizationDouble * elementUColumnPlusAddress_;
    00848 #endif
    00849   CoinBigIndex * startColumnUAddress_;
    00850 #if CONVERTROW
    00851   CoinBigIndex * convertRowToColumnUAddress_;
    00852 #if CONVERTROW>1
    00853   CoinBigIndex * convertColumnToRowUAddress_;
    00854 #endif
    00855 #endif
    00856 #if ABC_SMALL<2
    00857   CoinFactorizationDouble * elementRowUAddress_;
    00858 #endif
    00859   CoinBigIndex * startRowUAddress_;
    00860   CoinSimplexInt * numberInRowAddress_;
    00861   CoinSimplexInt * indexColumnUAddress_;
    00862   CoinSimplexInt * firstCountAddress_;
    00864   CoinSimplexInt * nextCountAddress_;
    00866   CoinSimplexInt * lastCountAddress_;
    00867   CoinSimplexInt * nextColumnAddress_;
    00868   CoinSimplexInt * lastColumnAddress_;
    00869   CoinSimplexInt * nextRowAddress_;
    00870   CoinSimplexInt * lastRowAddress_;
    00871   CoinSimplexInt * saveColumnAddress_;
    00872   //CoinSimplexInt * saveColumnAddress2_;
    00873   CoinCheckZero * markRowAddress_;
    00874   CoinSimplexInt * listAddress_;
    00875   CoinFactorizationDouble * elementLAddress_;
    00876   CoinSimplexInt * indexRowLAddress_;
    00877   CoinBigIndex * startColumnLAddress_;
    00878 #if ABC_SMALL<2
    00879   CoinBigIndex * startRowLAddress_;
    00880 #endif
    00881   CoinSimplexInt * pivotLinkedBackwardsAddress_;
    00882   CoinSimplexInt * pivotLinkedForwardsAddress_;
    00883   CoinSimplexInt * pivotLOrderAddress_;
    00884   CoinBigIndex * startColumnRAddress_;
    00886   CoinFactorizationDouble *elementRAddress_;
    00888   CoinSimplexInt *indexRowRAddress_;
    00889   CoinSimplexInt * indexColumnLAddress_;
    00890   CoinFactorizationDouble * elementByRowLAddress_;
    00891 #if ABC_SMALL<4
    00892   CoinFactorizationDouble * denseAreaAddress_;
    00893 #endif
    00894   CoinFactorizationDouble * workAreaAddress_;
    00895   CoinSimplexUnsignedInt * workArea2Address_;
    00896   mutable CoinSimplexInt * sparseAddress_;
    00897 #ifdef SMALL_PERMUTE
    00898   CoinSimplexInt * fromSmallToBigRow_;
    00899   CoinSimplexInt * fromSmallToBigColumn_;
    00900 #endif
    00902   CoinSimplexInt numberRowsExtra_;
    00904   CoinSimplexInt maximumRowsExtra_;
    00906   CoinSimplexInt numberRowsSmall_;
    00908   CoinSimplexInt numberGoodL_;
    00910   CoinSimplexInt numberRowsLeft_;
    00913   CoinBigIndex totalElements_;
    00915   CoinBigIndex firstZeroed_;
    00916 #if ABC_SMALL<2
    00918   CoinSimplexInt sparseThreshold_;
    00919 #endif
    00921   CoinSimplexInt numberR_;
    00923   CoinBigIndex lengthR_;
    00925   CoinBigIndex lengthAreaR_;
    00927   CoinBigIndex numberL_;
    00929   CoinBigIndex baseL_;
    00931   CoinBigIndex lengthL_;
    00933   CoinBigIndex lengthAreaL_;
    00935   CoinSimplexInt numberU_;
    00937   CoinBigIndex maximumU_;
    00939   CoinBigIndex lengthU_;
    00941   CoinBigIndex lengthAreaU_;
    00943   CoinBigIndex lastEntryByColumnU_;
    00944 #ifdef ABC_USE_FUNCTION_POINTERS
    00946   CoinBigIndex lastEntryByColumnUPlus_;
    00948   CoinBigIndex lengthAreaUPlus_;
    00949 #endif
    00951   CoinBigIndex lastEntryByRowU_;
    00953   CoinSimplexInt numberTrials_;
    00954 #if ABC_SMALL<4
    00956   CoinSimplexInt leadingDimension_;
    00957 #endif
    00958 #if COIN_BIG_DOUBLE==1
    00960   mutable CoinFactorizationLongDoubleArrayWithLength longArray_[FACTOR_CPU];
    00962   mutable CoinIndexedVector * associatedVector_[FACTOR_CPU];
    00963 #endif
    00965   CoinIntArrayWithLength pivotColumn_;
    00967   CoinIntArrayWithLength permute_;
    00969   CoinBigIndexArrayWithLength startRowU_;
    00971   CoinIntArrayWithLength numberInRow_;
    00973   CoinIntArrayWithLength numberInColumn_;
    00975   CoinIntArrayWithLength numberInColumnPlus_;
    00976
    00978   CoinIntArrayWithLength firstCount_;
    00980   CoinIntArrayWithLength nextColumn_;
    00982   CoinIntArrayWithLength lastColumn_;
    00984   CoinIntArrayWithLength nextRow_;
    00986   CoinIntArrayWithLength lastRow_;
    00988   CoinIntArrayWithLength saveColumn_;
    00990   CoinIntArrayWithLength markRow_;
    00992   CoinIntArrayWithLength indexColumnU_;
    00994   CoinFactorizationDoubleArrayWithLength pivotRegion_;
    00996   CoinFactorizationDoubleArrayWithLength elementU_;
    00998   CoinIntArrayWithLength indexRowU_;
    01000   CoinBigIndexArrayWithLength startColumnU_;
    01001 #ifdef ABC_USE_FUNCTION_POINTERS
    01003   CoinArbitraryArrayWithLength scatterUColumn_;
    01004 #endif
    01005 #if CONVERTROW
    01007   CoinBigIndexArrayWithLength convertRowToColumnU_;
    01008 #if CONVERTROW>1
    01010   CoinBigIndexArrayWithLength convertColumnToRowU_;
    01011 #endif
    01012 #endif
    01013 #if ABC_SMALL<2
    01015   CoinFactorizationDoubleArrayWithLength elementRowU_;
    01016 #endif
    01018   CoinFactorizationDoubleArrayWithLength elementL_;
    01020   CoinIntArrayWithLength indexRowL_;
    01022   CoinBigIndexArrayWithLength startColumnL_;
    01023 #if ABC_SMALL<4
    01025   CoinFactorizationDoubleArrayWithLength denseArea_;
    01026 #endif
    01028   CoinFactorizationDoubleArrayWithLength workArea_;
    01030   CoinUnsignedIntArrayWithLength workArea2_;
    01031 #if ABC_SMALL<2
    01033   CoinBigIndexArrayWithLength startRowL_;
    01035   CoinIntArrayWithLength indexColumnL_;
    01037   CoinFactorizationDoubleArrayWithLength elementByRowL_;
    01039   mutable CoinIntArrayWithLength sparse_;
    01040 #endif
    01042   CoinSimplexInt messageLevel_;
    01044   CoinBigIndex numberCompressions_;
    01045   // last slack pivot row
    01046   CoinSimplexInt lastSlack_;
    01047 #if ABC_SMALL<2
    01049   mutable double ftranCountInput_;
    01050   mutable double ftranCountAfterL_;
    01051   mutable double ftranCountAfterR_;
    01052   mutable double ftranCountAfterU_;
    01053   double ftranAverageAfterL_;
    01054   double ftranAverageAfterR_;
    01055   double ftranAverageAfterU_;
    01056 #if FACTORIZATION_STATISTICS
    01057   double ftranTwiddleFactor1_;
    01058   double ftranTwiddleFactor2_;
    01059 #endif
    01060   mutable CoinSimplexInt numberFtranCounts_;
    01061 #endif
    01063   CoinSimplexInt maximumRows_;
    01064 #if ABC_SMALL<2
    01065   mutable double ftranFTCountInput_;
    01066   mutable double ftranFTCountAfterL_;
    01067   mutable double ftranFTCountAfterR_;
    01068   mutable double ftranFTCountAfterU_;
    01069   double ftranFTAverageAfterL_;
    01070   double ftranFTAverageAfterR_;
    01071   double ftranFTAverageAfterU_;
    01072 #if FACTORIZATION_STATISTICS
    01073   double ftranFTTwiddleFactor1_;
    01074   double ftranFTTwiddleFactor2_;
    01075 #endif
    01076   mutable CoinSimplexInt numberFtranFTCounts_;
    01077 #endif
    01078 #if ABC_SMALL<4
    01080   CoinSimplexInt denseThreshold_;
    01081 #endif
    01082 #if ABC_SMALL<2
    01083   mutable double btranCountInput_;
    01084   mutable double btranCountAfterU_;
    01085   mutable double btranCountAfterR_;
    01086   mutable double btranCountAfterL_;
    01087   double btranAverageAfterU_;
    01088   double btranAverageAfterR_;
    01089   double btranAverageAfterL_;
    01090 #if FACTORIZATION_STATISTICS
    01091   double btranTwiddleFactor1_;
    01092   double btranTwiddleFactor2_;
    01093 #endif
    01094   mutable CoinSimplexInt numberBtranCounts_;
    01095 #endif
    01097   CoinSimplexInt maximumMaximumPivots_;
    01098 #if ABC_SMALL<2
    01100   mutable double ftranFullCountInput_;
    01101   mutable double ftranFullCountAfterL_;
    01102   mutable double ftranFullCountAfterR_;
    01103   mutable double ftranFullCountAfterU_;
    01104   double ftranFullAverageAfterL_;
    01105   double ftranFullAverageAfterR_;
    01106   double ftranFullAverageAfterU_;
    01107 #if FACTORIZATION_STATISTICS
    01108   double ftranFullTwiddleFactor1_;
    01109   double ftranFullTwiddleFactor2_;
    01110 #endif
    01111   mutable CoinSimplexInt numberFtranFullCounts_;
    01112 #endif
    01114   CoinSimplexInt initialNumberRows_;
    01115 #if ABC_SMALL<2
    01117   mutable double btranFullCountInput_;
    01118   mutable double btranFullCountAfterL_;
    01119   mutable double btranFullCountAfterR_;
    01120   mutable double btranFullCountAfterU_;
    01121   double btranFullAverageAfterL_;
    01122   double btranFullAverageAfterR_;
    01123   double btranFullAverageAfterU_;
    01124 #if FACTORIZATION_STATISTICS
    01125   double btranFullTwiddleFactor1_;
    01126   double btranFullTwiddleFactor2_;
    01127 #endif
    01128   mutable CoinSimplexInt numberBtranFullCounts_;
    01129 #endif
    01130
    01136   CoinSimplexInt state_;
    01138   CoinBigIndex sizeSparseArray_;
    01139 public:
    01140 #if ABC_SMALL<2
    01141 #if ABC_SMALL>=0
    01142   inline bool gotLCopy() const {return ((state_&ABC_FAC_GOT_LCOPY)!=0);}
    01143   inline void setNoGotLCopy() {state_ &= ~ABC_FAC_GOT_LCOPY;}
    01144   inline void setYesGotLCopy() {state_ |= ABC_FAC_GOT_LCOPY;}
    01145   inline bool gotRCopy() const {return ((state_&ABC_FAC_GOT_RCOPY)!=0);}
    01146   inline void setNoGotRCopy() {state_ &= ~ABC_FAC_GOT_RCOPY;}
    01147   inline void setYesGotRCopy() {state_ |= ABC_FAC_GOT_RCOPY;}
    01148   inline bool gotUCopy() const {return ((state_&ABC_FAC_GOT_UCOPY)!=0);}
    01149   inline void setNoGotUCopy() {state_ &= ~ABC_FAC_GOT_UCOPY;}
    01150   inline void setYesGotUCopy() {state_ |= ABC_FAC_GOT_UCOPY;}
    01151   inline bool gotSparse() const {return ((state_&ABC_FAC_GOT_SPARSE)!=0);}
    01152   inline void setNoGotSparse() {state_ &= ~ABC_FAC_GOT_SPARSE;}
    01153   inline void setYesGotSparse() {state_ |= ABC_FAC_GOT_SPARSE;}
    01154 #else
    01155   // force use of copies
    01156   inline bool gotLCopy() const {return true;}
    01157   inline void setNoGotLCopy() {}
    01158   inline void setYesGotLCopy() {}
    01159   inline bool gotRCopy() const {return true;}
    01160   inline void setNoGotRCopy() {}
    01161   inline void setYesGotRCopy() {}
    01162   inline bool gotUCopy() const {return true;}
    01163   inline void setNoGotUCopy() {}
    01164   inline void setYesGotUCopy() {}
    01165   inline bool gotSparse() const {return true;}
    01166   inline void setNoGotSparse() {}
    01167   inline void setYesGotSparse() {}
    01168 #endif
    01169 #else
    01170   // force no use of copies
    01171   inline bool gotLCopy() const {return false;}
    01172   inline void setNoGotLCopy() {}
    01173   inline void setYesGotLCopy() {}
    01174   inline bool gotRCopy() const {return false;}
    01175   inline void setNoGotRCopy() {}
    01176   inline void setYesGotRCopy() {}
    01177   inline bool gotUCopy() const {return false;}
    01178   inline void setNoGotUCopy() {}
    01179   inline void setYesGotUCopy() {}
    01180   inline bool gotSparse() const {return false;}
    01181   inline void setNoGotSparse() {}
    01182   inline void setYesGotSparse() {}
    01183 #endif
    01184
    01189   //CoinSimplexInt persistenceFlag_;
    01191 };
    01192
    01193