Bonmin::EcpCuts Class Reference

#include <BonEcpCuts.hpp>

Inheritance diagram for Bonmin::EcpCuts:

Collaboration diagram for Bonmin::EcpCuts:

Public Member Functions
	EcpCuts (BabSetupBase &b)
	EcpCuts (const EcpCuts &copy)
	Copy constructor.
CglCutGenerator *	clone () const
	clone
virtual	~EcpCuts ()
	Destructor.
virtual void	generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo())
	Standard cut generation methods.
double	doEcpRounds (OsiSolverInterface &si, bool leaveSiUnchanged, double *violation=NULL)
void	setNumRounds (int value)
void	setPropabilityFactor (double value)
void	setAbsViolationTolerance (double value)
void	setRelViolationTolerance (double value)
Public Member Functions inherited from Bonmin::OaDecompositionBase
	OaDecompositionBase (BabSetupBase &b, bool leaveSiUnchanged, bool reassignLpsolver)
	New usefull constructor.
	OaDecompositionBase (const OaDecompositionBase &copy)
	Copy constructor.
virtual	~OaDecompositionBase ()
	Destructor.
void	assignNlpInterface (OsiTMINLPInterface *nlp)
	Assign an OsiTMINLPInterface.
void	assignLpInterface (OsiSolverInterface *si)
	Assign an OsiTMINLPInterface.
bool	reassignLpsolver ()
void	setObjects (OsiObject **objects, int nObjects)
	Set objects.
void	setLeaveSiUnchanged (bool yesno)
	Set whether to leave the solverinterface unchanged.
Parameters &	parameter ()
const Parameters &	parameter () const
void	setLogLevel (int level)
void	setReassignLpSolver (bool v)
void	passInMessageHandler (CoinMessageHandler *handler)
Public Member Functions inherited from CglCutGenerator
	CglCutGenerator ()
	CglCutGenerator (const CglCutGenerator &)
CglCutGenerator &	operator= (const CglCutGenerator &rhs)
virtual	~CglCutGenerator ()
virtual std::string	generateCpp (FILE *)
virtual void	refreshSolver (OsiSolverInterface *)
int	getAggressiveness () const
void	setAggressiveness (int value)
void	setGlobalCuts (bool trueOrFalse)
bool	canDoGlobalCuts () const
virtual bool	mayGenerateRowCutsInTree () const
virtual bool	needsOptimalBasis () const
virtual int	maximumLengthOfCutInTree () const
	CglCutGenerator ()
	CglCutGenerator (const CglCutGenerator &)
CglCutGenerator &	operator= (const CglCutGenerator &rhs)
virtual	~CglCutGenerator ()
virtual std::string	generateCpp (FILE *)
virtual void	refreshSolver (OsiSolverInterface *)

Static Public Member Functions
static void	registerOptions (Ipopt::SmartPtr< Bonmin::RegisteredOptions > roptions)
	Register ecp cuts options.

Protected Member Functions
virtual double	performOa (OsiCuts &cs, solverManip &lpManip, BabInfo *babInfo, double &cutoff, const CglTreeInfo &info) const
	virtual method which performs the OA algorithm by modifying lp and nlp.
virtual bool	doLocalSearch (BabInfo *babInfo) const
	virutal method to decide if local search is performed
Protected Member Functions inherited from Bonmin::OaDecompositionBase
void	setupMipSolver (BabSetupBase &b, const std::string &prefix)
bool	post_nlp_solve (BabInfo *babInfo, double cutoff) const
	Solve the nlp and do output.

Additional Inherited Members
Public Attributes inherited from CglCutGenerator
int	aggressive_
bool	canDoGlobalCuts_
Protected Attributes inherited from Bonmin::OaDecompositionBase
OsiTMINLPInterface *	nlp_
	Pointer to nlp interface.
BabSetupBase *	s_
	Pointer to setup.
int	nSolve_
	Number of nlp solved done.
OsiSolverInterface *	lp_
	A linear solver.
OsiObject **	objects_
	Some objects the feasiblitiy of which to verify.
int	nObjects_
	Number of objects.*‍/.
int	nLocalSearch_
	number of local searches performed
CoinMessageHandler *	handler_
	messages handler.
CoinMessages	messages_
	Messages for OA.
bool	leaveSiUnchanged_
	Wether or not we should remove cuts at the end of the procedure.
bool	reassignLpsolver_
	Do we need to reassign the lp solver with Cbc.
double	timeBegin_
	time of construction
int	numSols_
	number of solutions found by OA_decomposition.
Parameters	parameters_
	Parameters.
OsiCuts	savedCuts_
	Saved cuts: in some cases when using OA to check feasible solution algorithm may loop because Cbc removes inactive cuts.
int	currentNodeNumber_
	Store the current node number.

Detailed Description

Definition at line 17 of file BonEcpCuts.hpp.

Constructor & Destructor Documentation

EcpCuts() [1/2]

Bonmin::EcpCuts::EcpCuts

(

BabSetupBase &

b

)

EcpCuts() [2/2]

Bonmin::EcpCuts::EcpCuts ( const EcpCuts & copy )

inline

Copy constructor.

Definition at line 23 of file BonEcpCuts.hpp.

~EcpCuts()

virtual Bonmin::EcpCuts::~EcpCuts ( )

inlinevirtual

Destructor.

Definition at line 39 of file BonEcpCuts.hpp.

Member Function Documentation

clone()

CglCutGenerator * Bonmin::EcpCuts::clone ( ) const

inlinevirtual

clone

Implements CglCutGenerator.

Definition at line 33 of file BonEcpCuts.hpp.

generateCuts()

virtual void Bonmin::EcpCuts::generateCuts ( const OsiSolverInterface & si, OsiCuts & cs, const CglTreeInfo info = CglTreeInfo() )

virtual

Standard cut generation methods.

Reimplemented from Bonmin::OaDecompositionBase.

doEcpRounds()

double Bonmin::EcpCuts::doEcpRounds	(	OsiSolverInterface &	si,
		bool	leaveSiUnchanged,
		double *	violation = NULL )

setNumRounds()

void Bonmin::EcpCuts::setNumRounds ( int value )

inline

Definition at line 48 of file BonEcpCuts.hpp.

setPropabilityFactor()

void Bonmin::EcpCuts::setPropabilityFactor ( double value )

inline

Definition at line 53 of file BonEcpCuts.hpp.

setAbsViolationTolerance()

void Bonmin::EcpCuts::setAbsViolationTolerance ( double value )

inline

Definition at line 58 of file BonEcpCuts.hpp.

setRelViolationTolerance()

void Bonmin::EcpCuts::setRelViolationTolerance ( double value )

inline

Definition at line 62 of file BonEcpCuts.hpp.

registerOptions()

void Bonmin::EcpCuts::registerOptions ( Ipopt::SmartPtr< Bonmin::RegisteredOptions > roptions )

static

Register ecp cuts options.

performOa()

virtual double Bonmin::EcpCuts::performOa ( OsiCuts & cs, solverManip & lpManip, BabInfo * babInfo, double & cutoff, const CglTreeInfo & info ) const

inlineprotectedvirtual

virtual method which performs the OA algorithm by modifying lp and nlp.

Implements Bonmin::OaDecompositionBase.

Definition at line 72 of file BonEcpCuts.hpp.

doLocalSearch()

virtual bool Bonmin::EcpCuts::doLocalSearch ( BabInfo * babInfo ) const

inlineprotectedvirtual

virutal method to decide if local search is performed

Implements Bonmin::OaDecompositionBase.

Definition at line 78 of file BonEcpCuts.hpp.

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

• /builddir/build/BUILD/coin-or-Bonmin-1.8.9-build/Bonmin-releases-1.8.9/Bonmin/src/Algorithms/OaGenerators/BonEcpCuts.hpp