Class to perform OA in its classical form. More...

#include <BonOACutGenerator2.hpp>

Inheritance diagram for Bonmin::OACutGenerator2:

Collaboration diagram for Bonmin::OACutGenerator2:

Public Member Functions
	OACutGenerator2 (BabSetupBase &b)
	Constructor with basic setup.
	OACutGenerator2 (const OACutGenerator2 &copy)
	Copy constructor.
	~OACutGenerator2 ()
	Destructor.
void	setStrategy (const CbcStrategy &strategy)
virtual CglCutGenerator *	clone () const
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.
virtual void	generateCuts (const OsiSolverInterface &si, OsiCuts &cs, const CglTreeInfo info=CglTreeInfo())
	Standard cut generation methods.
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 OA 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

Class to perform OA in its classical form.

Definition at line 18 of file BonOACutGenerator2.hpp.

Constructor & Destructor Documentation

◆ OACutGenerator2() [1/2]

Bonmin::OACutGenerator2::OACutGenerator2 ( BabSetupBase & b )

Constructor with basic setup.

◆ OACutGenerator2() [2/2]

Bonmin::OACutGenerator2::OACutGenerator2 ( const OACutGenerator2 & copy )

inline

Copy constructor.

Definition at line 25 of file BonOACutGenerator2.hpp.

◆ ~OACutGenerator2()

Bonmin::OACutGenerator2::~OACutGenerator2 ( )

Destructor.

Member Function Documentation

◆ setStrategy()

void Bonmin::OACutGenerator2::setStrategy ( const CbcStrategy & strategy )

inline

Definition at line 33 of file BonOACutGenerator2.hpp.

◆ clone()

virtual CglCutGenerator * Bonmin::OACutGenerator2::clone ( ) const

inlinevirtual

Implements CglCutGenerator.

Definition at line 38 of file BonOACutGenerator2.hpp.

◆ registerOptions()

void Bonmin::OACutGenerator2::registerOptions ( Ipopt::SmartPtr< Bonmin::RegisteredOptions > roptions )

static

Register OA options.

◆ performOa()

virtual double Bonmin::OACutGenerator2::performOa	(	OsiCuts &	cs,
		solverManip &	lpManip,
		BabInfo *	babInfo,
		double &	cutoff,
		const CglTreeInfo &	info ) const

protectedvirtual

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

Implements Bonmin::OaDecompositionBase.

◆ doLocalSearch()

virtual bool Bonmin::OACutGenerator2::doLocalSearch ( BabInfo * babInfo ) const

protectedvirtual

virutal method to decide if local search is performed