OsiOslSolverMipHandlerInterface Class Reference

Adapted OsiOsl Interface. More...

#include <OsiOslSolverMipHandlerInterface.h>

List of all members.

Public Member Functions
Solve methods
virtual int	solve1 ()
	Solve mode 1.
virtual int	solve2 ()
	Solve mode 2.
virtual int	solve3 ()
	Solve mode 3.
Problem query functions
virtual const double *	getRowUpper ()
virtual const double *	getObjCoefficients ()
Solution query functions
virtual const double *	getColSolution ()
virtual const double *	getRowPrice ()
virtual const double *	getRowActivity ()
Solution process information
int	getNumberOfNodes ()
Parameter query functions
int	getMaximumNumberOfNodes ()
bool	getTestFlag () const
bool	getTransponeFlag () const
Get additional information
CoinPackedMatrix	getInfoBlock () const
Parameter set functions
void	setTestFlag (bool test_)
void	setTransponeFlag (bool istransposed_)
Set additional information
void	setInfoBlock (CoinPackedMatrix infoBlock_)
Solver manipulating methods
void	deleteCols (const int num, const int *columnIndices)
void	deleteRows (const int num, const int *rowIndices)
virtual void	createNames ()
Methods to input a problem
virtual void	loadProblem (const int numcols, const int numrows, const CoinBigIndex *start, const int *index, const double *value, const double *collb, const double *colub, const double *obj, const double *rowlb, const double *rowub)
virtual void	loadProblem (const int numcols, const int numrows, const CoinBigIndex *start, const int *index, const double *value, const double *collb, const double *colub, const double *obj, const char *rowsen, const double *rowrhs, const double *rowrng)
virtual int	addSpeciallyOrderedSet (const SpeciallyOrderedSet *sos)
	add a specially ordered set or an integer set
Methods to write a problem to file
virtual void	writeProblemExcel (char *filename, const CoinPackedMatrix &activityType)
	Write the problem currently loaded to the solver in a file in standard LP Excel format.
Test functions
int	testModel ()
	Submit loaded model to some tests.
int	checkSolutionPrimal ()
Constructors and destructor
	OsiOslSolverMipHandlerInterface ()
	Standard constructor.
virtual	~OsiOslSolverMipHandlerInterface ()
	Destructor:.
Private Member Functions
template<class Type>
int	allocateVector (Type *&pointertovector, long int sizeofvector)
void	retrieveOriginalColumnNames (int *&colIndex)
	get the original column indeces back (from before deleting columns was done)
void	retrieveOriginalRowNames (int *&rowIndex)
	get the original row indeces back (from before deleting columns was done)
int	checkColumns ()
	checks if bounds on columns/activities are consistent
int	fixDiverseParameters ()
void	gutsOfDestructor ()
Private Attributes
int	numrows
int	numcols
int	numberofrowstodrop
	Number of empty rows to be dropped from model.
int	numberofcolstodrop
	Number of empty columns to be dropped from model.
bool	test
	Test flag.
int	istransposed
	boolean flag: true if MatrixDouble is transposed
CoinPackedMatrix	infoBlock
	Info Block from Excel tableau, needed in writeProblemExcel().
Friends
void	OsiOslSolverMipHandlerInterfaceUnitTest ()

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Detailed Description

Adapted OsiOsl Interface.

This class is derived from the OsiOsiSolverInterface. Essentially it wrapes the OSL solver fucntionality which was develloped by Thomas berger in the former class mpPrbl (files lp9.x). Important features are the three different solving strategies implemented in the methods solve1(),solve2() and solve3().

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Constructor & Destructor Documentation

OsiOslSolverMipHandlerInterface::OsiOslSolverMipHandlerInterface (   )

Standard constructor.

virtual OsiOslSolverMipHandlerInterface::~OsiOslSolverMipHandlerInterface (   )  [virtual]

Destructor:.

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Member Function Documentation

virtual int OsiOslSolverMipHandlerInterface::addSpeciallyOrderedSet (  const SpeciallyOrderedSet *  sos  )  [virtual]

add a specially ordered set or an integer set Type has to be: -1 for an integer set or 1,2, or 3 for sos of type 1,2 or 3, respectively

template<class Type> int OsiOslSolverMipHandlerInterface::allocateVector (  Type *&  pointertovector, long int  sizeofvector )  [private]

int OsiOslSolverMipHandlerInterface::checkColumns (   )  [private]

checks if bounds on columns/activities are consistent

int OsiOslSolverMipHandlerInterface::checkSolutionPrimal (   )

checks if primal solution values lie within upper and lower bounds and if bounds on columns are consistent

virtual void OsiOslSolverMipHandlerInterface::createNames (   )  [virtual]

void OsiOslSolverMipHandlerInterface::deleteCols (  const int  num, const int *  columnIndices )

void OsiOslSolverMipHandlerInterface::deleteRows (  const int  num, const int *  rowIndices )

int OsiOslSolverMipHandlerInterface::fixDiverseParameters (   )  [private]

virtual const double* OsiOslSolverMipHandlerInterface::getColSolution (   )  [virtual]

CoinPackedMatrix OsiOslSolverMipHandlerInterface::getInfoBlock (   )  const

int OsiOslSolverMipHandlerInterface::getMaximumNumberOfNodes (   )

int OsiOslSolverMipHandlerInterface::getNumberOfNodes (   )

virtual const double* OsiOslSolverMipHandlerInterface::getObjCoefficients (   )  [virtual]

virtual const double* OsiOslSolverMipHandlerInterface::getRowActivity (   )  [virtual]

virtual const double* OsiOslSolverMipHandlerInterface::getRowPrice (   )  [virtual]

virtual const double* OsiOslSolverMipHandlerInterface::getRowUpper (   )  [virtual]

bool OsiOslSolverMipHandlerInterface::getTestFlag (   )  const

bool OsiOslSolverMipHandlerInterface::getTransponeFlag (   )  const

void OsiOslSolverMipHandlerInterface::gutsOfDestructor (   )  [private]

virtual void OsiOslSolverMipHandlerInterface::loadProblem (  const int  numcols, const int  numrows, const CoinBigIndex *  start, const int *  index, const double *  value, const double *  collb, const double *  colub, const double *  obj, const char *  rowsen, const double *  rowrhs, const double *  rowrng )  [virtual]

Just like the previous loadProblem() method except that the MatrixDouble is given in a standard column major ordered format (without gaps).

virtual void OsiOslSolverMipHandlerInterface::loadProblem (  const int  numcols, const int  numrows, const CoinBigIndex *  start, const int *  index, const double *  value, const double *  collb, const double *  colub, const double *  obj, const double *  rowlb, const double *  rowub )  [virtual]

Just like the other loadProblem() methods in parent class OsiOslSolverInterface except that the MatrixDouble is given in a standard column major ordered format (without gaps). This Methods overwrites the parent class'method to include ekk_dropLastElementBlock() and ekk_mergeBlocks().

void OsiOslSolverMipHandlerInterface::retrieveOriginalColumnNames (  int *&  colIndex  )  [private]

get the original column indeces back (from before deleting columns was done)

void OsiOslSolverMipHandlerInterface::retrieveOriginalRowNames (  int *&  rowIndex  )  [private]

get the original row indeces back (from before deleting columns was done)

void OsiOslSolverMipHandlerInterface::setInfoBlock (  CoinPackedMatrix  infoBlock_  )

void OsiOslSolverMipHandlerInterface::setTestFlag (  bool  test_  )

void OsiOslSolverMipHandlerInterface::setTransponeFlag (  bool  istransposed_  )

virtual int OsiOslSolverMipHandlerInterface::solve1 (   )  [virtual]

Solve mode 1. with previous call of ekk_eitherSimplex, see sample code EXIMDL.CPP

virtual int OsiOslSolverMipHandlerInterface::solve2 (   )  [virtual]

Solve mode 2. with presolving, see sample code EXMIP.CPP

virtual int OsiOslSolverMipHandlerInterface::solve3 (   )  [virtual]

Solve mode 3. neu 2004 BnB with transformation to 0/1 MIP problem, see EXGMIP.CPP integer sets needed; otherwise segmentation fault in ekk_makeBinary() CAVE: other results after warmstart than with solve1() and solve2()

int OsiOslSolverMipHandlerInterface::testModel (   )

Submit loaded model to some tests.

virtual void OsiOslSolverMipHandlerInterface::writeProblemExcel (  char *  filename, const CoinPackedMatrix &  activityType )  [virtual]

Write the problem currently loaded to the solver in a file in standard LP Excel format.

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Friends And Related Function Documentation

void OsiOslSolverMipHandlerInterfaceUnitTest (   )  [friend]

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Member Data Documentation

CoinPackedMatrix OsiOslSolverMipHandlerInterface::infoBlock [private]

Info Block from Excel tableau, needed in writeProblemExcel().

int OsiOslSolverMipHandlerInterface::istransposed [private]

boolean flag: true if MatrixDouble is transposed

int OsiOslSolverMipHandlerInterface::numberofcolstodrop [private]

Number of empty columns to be dropped from model.

int OsiOslSolverMipHandlerInterface::numberofrowstodrop [private]

Number of empty rows to be dropped from model.

int OsiOslSolverMipHandlerInterface::numcols [private]

int OsiOslSolverMipHandlerInterface::numrows [private]

bool OsiOslSolverMipHandlerInterface::test [private]

Test flag.

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

• OsiOslSolverMipHandlerInterface.h

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