SPxMainSM< R >::PostStep Class Reference

Base class for postsolving operations.Class PostStep is an abstract base class providing the interface for operations in the postsolving process. More...

Public Member Functions
	PostStep (const char *p_name, std::shared_ptr< Tolerances > tols, int nR=0, int nC=0)
	constructor. More...
	PostStep (const PostStep &old)
	copy constructor. More...
PostStep &	operator= (const PostStep &)
	assignment operator More...
virtual	~PostStep ()
	destructor. More...
virtual const char *	getName () const
	get name of simplifying step. More...
virtual PostStep *	clone () const =0
	clone function for polymorphism More...
virtual void	execute (VectorBase< R > &x, VectorBase< R > &y, VectorBase< R > &s, VectorBase< R > &r, DataArray< typename SPxSolverBase< R >::VarStatus > &cBasis, DataArray< typename SPxSolverBase< R >::VarStatus > &rBasis, bool isOptimal) const =0
	executes the postsolving. More...
virtual bool	checkBasisDim (DataArray< typename SPxSolverBase< R >::VarStatus > rows, DataArray< typename SPxSolverBase< R >::VarStatus > cols) const
virtual R	feastol () const
virtual R	epsilon () const

Private Attributes
const char *	m_name
	name of the simplifier More...
int	nCols
	number of cols More...
int	nRows
	number of rows More...
std::shared_ptr< Tolerances >	_tolerances
	0-epsilon of this poststep More...

Detailed Description

template<class R>
class soplex::SPxMainSM< R >::PostStep

Base class for postsolving operations.

Class PostStep is an abstract base class providing the interface for operations in the postsolving process.

Definition at line 84 of file spxmainsm.h.

Constructor & Destructor Documentation

PostStep() [1/2]

PostStep	(	const char *	p_name,
		std::shared_ptr< Tolerances >	tols,
		int	nR = 0,
		int	nC = 0
	)

constructor.

Definition at line 98 of file spxmainsm.h.

PostStep() [2/2]

PostStep

(

const PostStep &

old

)

copy constructor.

Definition at line 106 of file spxmainsm.h.

References SPxMainSM< R >::PostStep::_tolerances.

~PostStep()

virtual ~PostStep ( )

virtual

destructor.

Definition at line 119 of file spxmainsm.h.

Member Function Documentation

checkBasisDim()

virtual bool checkBasisDim ( DataArray< typename SPxSolverBase< R >::VarStatus >  rows, DataArray< typename SPxSolverBase< R >::VarStatus >  cols  ) const

virtual

Referenced by SPxMainSM< R >::PostStep::getName().

clone()

virtual PostStep* clone ( ) const

pure virtual

clone function for polymorphism

Implemented in SPxMainSM< R >::TightenBoundsPS, SPxMainSM< R >::MultiAggregationPS, SPxMainSM< R >::AggregationPS, SPxMainSM< R >::DuplicateColsPS, SPxMainSM< R >::DuplicateRowsPS, SPxMainSM< R >::DoubletonEquationPS, SPxMainSM< R >::FreeColSingletonPS, SPxMainSM< R >::ZeroObjColSingletonPS, SPxMainSM< R >::FreeZeroObjVariablePS, SPxMainSM< R >::FixBoundsPS, SPxMainSM< R >::FixVariablePS, SPxMainSM< R >::ForceConstraintPS, SPxMainSM< R >::RowSingletonPS, SPxMainSM< R >::EmptyConstraintPS, SPxMainSM< R >::FreeConstraintPS, and SPxMainSM< R >::RowObjPS.

Referenced by SPxMainSM< R >::PostStep::getName().

epsilon()

virtual R epsilon ( ) const

virtual

Definition at line 149 of file spxmainsm.h.

execute()

virtual void execute ( VectorBase< R > &  x, VectorBase< R > &  y, VectorBase< R > &  s, VectorBase< R > &  r, DataArray< typename SPxSolverBase< R >::VarStatus > &  cBasis, DataArray< typename SPxSolverBase< R >::VarStatus > &  rBasis, bool  isOptimal  ) const

pure virtual

executes the postsolving.

Implemented in SPxMainSM< R >::TightenBoundsPS, SPxMainSM< R >::MultiAggregationPS, SPxMainSM< R >::AggregationPS, SPxMainSM< R >::DuplicateColsPS, SPxMainSM< R >::DuplicateRowsPS, SPxMainSM< R >::DoubletonEquationPS, SPxMainSM< R >::FreeColSingletonPS, SPxMainSM< R >::ZeroObjColSingletonPS, SPxMainSM< R >::FreeZeroObjVariablePS, SPxMainSM< R >::FixBoundsPS, SPxMainSM< R >::FixVariablePS, SPxMainSM< R >::ForceConstraintPS, SPxMainSM< R >::RowSingletonPS, SPxMainSM< R >::EmptyConstraintPS, SPxMainSM< R >::FreeConstraintPS, and SPxMainSM< R >::RowObjPS.

Referenced by SPxMainSM< R >::RowSingletonPS::clone(), SPxMainSM< R >::ForceConstraintPS::clone(), SPxMainSM< R >::FixVariablePS::clone(), SPxMainSM< R >::FixBoundsPS::clone(), SPxMainSM< R >::FreeZeroObjVariablePS::clone(), SPxMainSM< R >::ZeroObjColSingletonPS::clone(), SPxMainSM< R >::FreeColSingletonPS::clone(), SPxMainSM< R >::DoubletonEquationPS::clone(), SPxMainSM< R >::DuplicateRowsPS::clone(), SPxMainSM< R >::DuplicateColsPS::clone(), SPxMainSM< R >::AggregationPS::clone(), SPxMainSM< R >::MultiAggregationPS::clone(), SPxMainSM< R >::TightenBoundsPS::clone(), SPxMainSM< R >::PostStep::getName(), SPxMainSM< R >::RowObjPS::operator=(), SPxMainSM< R >::FreeConstraintPS::operator=(), and SPxMainSM< R >::EmptyConstraintPS::operator=().

feastol()

virtual R feastol ( ) const

virtual

Definition at line 144 of file spxmainsm.h.

Referenced by SPxMainSM< R >::FixBoundsPS::FixBoundsPS().

getName()

virtual const char* getName ( ) const

virtual

get name of simplifying step.

Definition at line 124 of file spxmainsm.h.

References SPxMainSM< R >::PostStep::checkBasisDim(), SPxMainSM< R >::PostStep::clone(), SPxMainSM< R >::PostStep::execute(), and SPxMainSM< R >::PostStep::m_name.

operator=()

PostStep& operator=

(

const PostStep &

)

assignment operator

Definition at line 114 of file spxmainsm.h.

Referenced by SPxMainSM< R >::RowSingletonPS::operator=(), SPxMainSM< R >::ForceConstraintPS::operator=(), SPxMainSM< R >::FixVariablePS::operator=(), SPxMainSM< R >::FixBoundsPS::operator=(), SPxMainSM< R >::FreeZeroObjVariablePS::operator=(), SPxMainSM< R >::ZeroObjColSingletonPS::operator=(), SPxMainSM< R >::FreeColSingletonPS::operator=(), SPxMainSM< R >::DoubletonEquationPS::operator=(), SPxMainSM< R >::DuplicateRowsPS::operator=(), SPxMainSM< R >::DuplicateColsPS::operator=(), SPxMainSM< R >::AggregationPS::operator=(), and SPxMainSM< R >::MultiAggregationPS::operator=().

Member Data Documentation

_tolerances

std::shared_ptr<Tolerances> _tolerances

private

0-epsilon of this poststep

Definition at line 94 of file spxmainsm.h.

Referenced by SPxMainSM< R >::PostStep::PostStep().

m_name

const char* m_name

private

name of the simplifier

Definition at line 88 of file spxmainsm.h.

Referenced by SPxMainSM< R >::PostStep::getName().

nCols

int nCols

private

number of cols

Definition at line 90 of file spxmainsm.h.

nRows

int nRows

private

number of rows

Definition at line 92 of file spxmainsm.h.