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ClpPEPrimalColumnDantzig Class Reference

#include <ClpPEPrimalColumnDantzig.hpp>

+ Inheritance diagram for ClpPEPrimalColumnDantzig:
+ Collaboration diagram for ClpPEPrimalColumnDantzig:

Public Member Functions

 ClpPEPrimalColumnDantzig (double psi=0.5)
 constructors More...
 ClpPEPrimalColumnDantzig (const ClpPEPrimalColumnDantzig &)
 ~ClpPEPrimalColumnDantzig ()
 destructor More...
ClpPEPrimalColumnDantzigoperator= (const ClpPEPrimalColumnDantzig &rhs)
 assignment operator More...
ClpPrimalColumnPivotclone (bool copyData=true) const
 clone More...
virtual int pivotColumn (CoinIndexedVector *updates, CoinIndexedVector *spareRow1, CoinIndexedVector *spareRow2, CoinIndexedVector *spareColumn1, CoinIndexedVector *spareColumn2)
 Returns pivot column, -1 if none. More...
virtual void saveWeights (ClpSimplex *model, int mode)
 Save weights - this may initialize weights as well This is as parent but may initialize ClpPESimplex. More...
- Public Member Functions inherited from ClpPrimalColumnDantzig
 ClpPrimalColumnDantzig ()
 Default Constructor. More...
 ClpPrimalColumnDantzig (const ClpPrimalColumnDantzig &)
 Copy constructor. More...
ClpPrimalColumnDantzigoperator= (const ClpPrimalColumnDantzig &rhs)
 Assignment operator. More...
virtual ~ClpPrimalColumnDantzig ()
 Destructor. More...
- Public Member Functions inherited from ClpPrimalColumnPivot
virtual void updateWeights (CoinIndexedVector *input)
 Updates weights - part 1 (may be empty) More...
virtual int pivotRow (double &way)
 Signals pivot row choice: -2 (default) - use normal pivot row choice -1 to numberRows-1 - use this (will be checked) way should be -1 to go to lower bound, +1 to upper bound. More...
virtual void clearArrays ()
 Gets rid of all arrays (may be empty) More...
virtual bool looksOptimal () const
 Returns true if would not find any column. More...
virtual void setLooksOptimal (bool flag)
 Sets optimality flag (for advanced use) More...
 ClpPrimalColumnPivot ()
 Default Constructor. More...
 ClpPrimalColumnPivot (const ClpPrimalColumnPivot &)
 Copy constructor. More...
ClpPrimalColumnPivotoperator= (const ClpPrimalColumnPivot &rhs)
 Assignment operator. More...
virtual ~ClpPrimalColumnPivot ()
 Destructor. More...
ClpSimplexmodel ()
 Returns model. More...
void setModel (ClpSimplex *newmodel)
 Sets model. More...
int type ()
 Returns type (above 63 is extra information) More...
virtual int numberSprintColumns (int &numberIterations) const
 Returns number of extra columns for sprint algorithm - 0 means off. More...
virtual void switchOffSprint ()
 Switch off sprint idea. More...
virtual void maximumPivotsChanged ()
 Called when maximum pivots changes. More...

Private Attributes

double psi_
int iCurrent_
int iInterval_
int coDegenCompatibles_
int coConsecutiveCompatibles_
bool updateCompatibles_

Additional Inherited Members

- Protected Attributes inherited from ClpPrimalColumnPivot
 Pointer to model. More...
int type_
 Type of column pivot algorithm. More...
bool looksOptimal_
 Says if looks optimal (normally computed) More...

Detailed Description

Definition at line 23 of file ClpPEPrimalColumnDantzig.hpp.

Constructor & Destructor Documentation

ClpPEPrimalColumnDantzig::ClpPEPrimalColumnDantzig ( double  psi = 0.5)


ClpPEPrimalColumnDantzig::ClpPEPrimalColumnDantzig ( const ClpPEPrimalColumnDantzig )
ClpPEPrimalColumnDantzig::~ClpPEPrimalColumnDantzig ( )


Member Function Documentation

ClpPEPrimalColumnDantzig& ClpPEPrimalColumnDantzig::operator= ( const ClpPEPrimalColumnDantzig rhs)

assignment operator

ClpPrimalColumnPivot* ClpPEPrimalColumnDantzig::clone ( bool  copyData = true) const


Reimplemented from ClpPrimalColumnDantzig.

virtual int ClpPEPrimalColumnDantzig::pivotColumn ( CoinIndexedVector updates,
CoinIndexedVector spareRow1,
CoinIndexedVector spareRow2,
CoinIndexedVector spareColumn1,
CoinIndexedVector spareColumn2 

Returns pivot column, -1 if none.

Lumbers over all columns - slow The Packed CoinIndexedVector updates has cost updates - for normal LP that is just +-weight where a feasibility changed. It also has reduced cost from last iteration in pivot row Can just do full price if you really want to be slow

Reimplemented from ClpPrimalColumnDantzig.

virtual void ClpPEPrimalColumnDantzig::saveWeights ( ClpSimplex model,
int  mode 

Save weights - this may initialize weights as well This is as parent but may initialize ClpPESimplex.

Reimplemented from ClpPrimalColumnDantzig.

Member Data Documentation

ClpPESimplex* ClpPEPrimalColumnDantzig::modelPE_

Definition at line 53 of file ClpPEPrimalColumnDantzig.hpp.

double ClpPEPrimalColumnDantzig::psi_

Definition at line 57 of file ClpPEPrimalColumnDantzig.hpp.

int ClpPEPrimalColumnDantzig::iCurrent_

Definition at line 60 of file ClpPEPrimalColumnDantzig.hpp.

int ClpPEPrimalColumnDantzig::iInterval_

Definition at line 61 of file ClpPEPrimalColumnDantzig.hpp.

int ClpPEPrimalColumnDantzig::coDegenCompatibles_

Definition at line 64 of file ClpPEPrimalColumnDantzig.hpp.

int ClpPEPrimalColumnDantzig::coConsecutiveCompatibles_

Definition at line 65 of file ClpPEPrimalColumnDantzig.hpp.

bool ClpPEPrimalColumnDantzig::updateCompatibles_

Definition at line 66 of file ClpPEPrimalColumnDantzig.hpp.

The documentation for this class was generated from the following file: