6 #ifndef ClpFactorization_H 7 #define ClpFactorization_H 9 #include "CoinPragma.hpp" 11 #include "CoinFactorization.hpp" 15 class CoinOtherFactorization;
16 #ifndef CLP_MULTIPLE_FACTORIZATIONS 17 #define CLP_MULTIPLE_FACTORIZATIONS 4 19 #ifdef CLP_MULTIPLE_FACTORIZATIONS 20 #include "CoinDenseFactorization.hpp" 23 #ifndef COIN_FAST_CODE 24 #define COIN_FAST_CODE 26 #ifndef CLP_FACTORIZATION_NEW_TIMING 27 #define CLP_FACTORIZATION_NEW_TIMING 1 36 :
public CoinFactorization
71 #ifdef CLP_MULTIPLE_FACTORIZATIONS 90 CoinIndexedVector *regionSparse,
91 CoinIndexedVector *tableauColumn,
94 bool checkBeforeModifying =
false,
95 double acceptablePivot = 1.0e-8);
96 #if ABOCA_LITE_FACTORIZATION 97 void replaceColumn1(CoinIndexedVector *regionSparse,
int pivotRow);
100 int replaceColumn2(CoinIndexedVector *regionSparse,
114 CoinIndexedVector *regionSparse2);
118 CoinIndexedVector *regionSparse2,
119 bool noPermute =
false)
const;
126 CoinIndexedVector *regionSparse2,
127 CoinIndexedVector *regionSparse3,
128 bool noPermuteRegion3 =
false);
131 CoinIndexedVector *regionSparse2,
132 bool noPermute =
false)
const;
136 CoinIndexedVector *regionSparse2)
const;
142 CoinIndexedVector *regionSparse2,
143 CoinIndexedVector *regionSparse3)
const;
145 #ifdef CLP_MULTIPLE_FACTORIZATIONS 293 #if CLP_FACTORIZATION_NEW_TIMING > 1 294 void statsRefactor(
char when)
const;
412 #ifndef COIN_FAST_CODE 473 #ifndef COIN_FAST_CODE 479 inline void goDense() {}
521 #ifdef CLP_MULTIPLE_FACTORIZATIONS 526 #ifdef CLP_REUSE_ETAS 539 #ifdef CLP_FACTORIZATION_NEW_TIMING int goOslThreshold_
Switch to osl if number rows <= this.
void setGoOslThreshold(int value)
Set switch to osl if number rows <= this.
int goDenseThreshold() const
Get switch to dense if number rows <= this.
void setGoSmallThreshold(int value)
Set switch to small if number rows <= this.
void sparseThreshold(int value)
Set sparse threshold.
int isDenseOrSmall() const
Return 1 if dense code.
Abstract base class for Clp Matrices.
int updateTwoColumnsFT(CoinIndexedVector *regionSparse1, CoinIndexedVector *regionSparse2, CoinIndexedVector *regionSparse3, bool noPermuteRegion3=false)
Updates one column (FTRAN) from region2 Tries to do FT update number returned is negative if no room...
int pivots() const
Returns number of pivots since factorization.
void setStatus(int value)
Sets status.
void getWeights(int *weights) const
Fills weighted row list.
double shortestAverage_
For guessing when to re-factorize.
int factorize(ClpSimplex *model, int solveType, bool valuesPass)
When part of LP - given by basic variables.
void setDenseThreshold(int value)
Sets dense threshold.
CoinBigIndex numberElementsR() const
Returns number in R area.
void almostDestructor()
Delete all stuff (leaves as after CoinFactorization())
void forceOtherFactorization(int which)
If nonzero force use of 1,dense 2,small 3,osl.
int updateColumn(CoinIndexedVector *regionSparse, CoinIndexedVector *regionSparse2, bool noPermute=false) const
Updates one column (FTRAN) from region2 region1 starts as zero and is zero at end.
void setFactorization(ClpFactorization &factorization)
Sets factorization.
ClpNetworkBasis * networkBasis_
Pointer to network basis.
void saferTolerances(double zeroTolerance, double pivotTolerance)
Set tolerances to safer of existing and given.
int goOslThreshold() const
Get switch to osl if number rows <= this.
void setGoDenseThreshold(int value)
Set switch to dense if number rows <= this.
void setDefaultValues()
Sets default values.
This deals with Factorization and Updates for network structures.
This just implements CoinFactorization when an ClpMatrixBase object is passed.
void setBiasLU(int value)
int goSmallThreshold() const
Get switch to small if number rows <= this.
void setPersistenceFlag(int value)
#define CLP_MULTIPLE_FACTORIZATIONS
int numberRows() const
Number of Rows after factorization.
double areaFactor() const
Whether larger areas needed.
bool doStatistics_
To switch statistics on or off.
CoinBigIndex numberElementsL() const
Returns number in L area.
void maximumPivots(int value)
Set maximum number of pivots between factorizations.
~ClpFactorization()
Destructor.
bool networkBasis() const
Says if a network basis.
void cleanUp()
Cleans up i.e. gets rid of network basis.
int numberDense() const
Returns number of dense rows.
This solves LPs using the simplex method.
void goDenseOrSmall(int numberRows)
Go over to dense or small code if small enough.
void clearArrays()
Get rid of all memory.
void updateTwoColumnsTranspose(CoinIndexedVector *regionSparse, CoinIndexedVector *regionSparse2, CoinIndexedVector *regionSparse3) const
Updates two columns (BTRAN) from regionSparse2 and 3 regionSparse starts as zero and is zero at end N...
bool needToReorder() const
Says whether to redo pivot order.
CoinFactorization * coinFactorizationA_
Pointer to CoinFactorization.
ClpFactorization()
Default constructor.
CoinBigIndex numberElementsU() const
Returns number in U area.
void zeroTolerance(double value)
Set zero tolerance.
int updateColumnTranspose(CoinIndexedVector *regionSparse, CoinIndexedVector *regionSparse2) const
Updates one column (BTRAN) from region2 region1 starts as zero and is zero at end.
void doStatistics(bool trueFalse) const
To switch statistics on or off.
ClpFactorization & operator=(const ClpFactorization &)
void goSparse()
makes a row copy of L for speed and to allow very sparse problems
int sparseThreshold() const
get sparse threshold
int effectiveStartNumberU_
int updateColumnForDebug(CoinIndexedVector *regionSparse, CoinIndexedVector *regionSparse2, bool noPermute=false) const
For debug (no statistics update)
int replaceColumn(const ClpSimplex *model, CoinIndexedVector *regionSparse, CoinIndexedVector *tableauColumn, int pivotRow, double pivotCheck, bool checkBeforeModifying=false, double acceptablePivot=1.0e-8)
Replaces one Column to basis, returns 0=OK, 1=Probably OK, 2=singular, 3=no room If checkBeforeModify...
int goSmallThreshold_
Switch to small if number rows <= this.
CoinFactorization * coinFactorization() const
Return coinFactorizationA_.
int * pivotColumn() const
Returns address of pivotColumn region (also used for permuting)
int goDenseThreshold_
Switch to dense if number rows <= this.
double adjustedAreaFactor() const
Returns areaFactor but adjusted for dense.
void messageLevel(int value)
Set level of detail of messages.
int denseThreshold() const
Gets dense threshold.
int maximumPivots() const
Maximum number of pivots between factorizations.
int * permute() const
Returns address of permute region.
bool timeToRefactorize() const
int status() const
Returns status.
int updateColumnFT(CoinIndexedVector *regionSparse, CoinIndexedVector *regionSparse2)
Updates one column (FTRAN) from region2 Tries to do FT update number returned is negative if no room ...
double zeroTolerance() const
Zero tolerance.
double totalInIncreasingU_
int messageLevel() const
Level of detail of messages.
double pivotTolerance() const
Pivot tolerance.
void pivotTolerance(double value)
Set pivot tolerance.
void setForrestTomlin(bool value)
true if Forrest Tomlin update, false if PFI
int numberElements() const
Total number of elements in factorization.
int forceB_
If nonzero force use of 1,dense 2,small 3,osl.
void areaFactor(double value)
Set whether larger areas needed.
CoinOtherFactorization * coinFactorizationB_
Pointer to CoinOtherFactorization.
int persistenceFlag() const
Array persistence flag If 0 then as now (delete/new) 1 then only do arrays if bigger needed 2 as 1 bu...
void relaxAccuracyCheck(double value)
Allows change of pivot accuracy check 1.0 == none >1.0 relaxed.