Class collecting parameters for the GMI cut generator. More...

#include <CglGMIParam.hpp>

Inheritance diagram for CglGMIParam:

Collaboration diagram for CglGMIParam:

Public Types
Enumerations
enum	CleaningProcedure { CP_CGLLANDP1, CP_CGLLANDP2, CP_CGLREDSPLIT, CP_INTEGRAL_CUTS, CP_CGLLANDP1_INT, CP_CGLLANDP1_SCALEMAX, CP_CGLLANDP1_SCALERHS }

Public Member Functions
Set/get methods
void	setInfinity (double value)
	Aliases for parameter get/set method in the base class CglParam. More...

double	getInfinity () const
	Aliases for parameter get/set method in the base class CglParam. More...

void	setEps (double value)
	Epsilon for comparing numbers. More...

double	getEps () const
	Aliases for parameter get/set method in the base class CglParam. More...

void	setEpsCoeff (double value)
	Epsilon for zeroing out coefficients. More...

double	getEpsCoeff () const
	Aliases for parameter get/set method in the base class CglParam. More...

void	setMaxSupport (int value)
	Maximum support of the cutting planes. More...

int	getMaxSupport () const
	Aliases for parameter get/set method in the base class CglParam. More...

void	setMaxSupportAbs (int value)
	Alias for consistency with our naming scheme. More...

int	getMaxSupportAbs () const
	Aliases for parameter get/set method in the base class CglParam. More...

int	getMAX_SUPPORT_ABS () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setAway (double value)
	Set AWAY, the minimum distance from being integer used for selecting rows for cut generation; all rows whose pivot variable should be integer but is more than away from integrality will be selected; Default: 0.005. More...

double	getAway () const
	Get value of away. More...

void	setAWAY (double value)
	Aliases. More...

double	getAWAY () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setEPS_ELIM (double value)
	Set the value of EPS_ELIM, epsilon for values of coefficients when eliminating slack variables; Default: 0. More...

double	getEPS_ELIM () const
	Get the value of EPS_ELIM. More...

void	setEpsElim (double value)
	Aliases. More...

double	getEpsElim () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setEPS_RELAX_ABS (double value)
	Set EPS_RELAX_ABS. More...

double	getEPS_RELAX_ABS () const
	Get value of EPS_RELAX_ABS. More...

void	setEpsRelaxAbs (double value)
	Aliases. More...

double	getEpsRelaxAbs () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setEPS_RELAX_REL (double value)
	Set EPS_RELAX_REL. More...

double	getEPS_RELAX_REL () const
	Get value of EPS_RELAX_REL. More...

void	setEpsRelaxRel (double value)
	Aliases. More...

double	getEpsRelaxRel () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setMAXDYN (double value)
	Aliases for parameter get/set method in the base class CglParam. More...

double	getMAXDYN () const
	Get the value of MAXDYN. More...

void	setMaxDyn (double value)
	Aliases. More...

double	getMaxDyn () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setMINVIOL (double value)
	Set the value of MINVIOL, the minimum violation for the current basic solution in a generated cut. More...

double	getMINVIOL () const
	Get the value of MINVIOL. More...

void	setMinViol (double value)
	Aliases. More...

double	getMinViol () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setMAX_SUPPORT_REL (double value)
	Set the value of MAX_SUPPORT_REL, the factor contributing to the maximum support relative to the number of columns. More...

double	getMAX_SUPPORT_REL () const
	Get the value of MINVIOL. More...

void	setMaxSupportRel (double value)
	Aliases. More...

double	getMaxSupportRel () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setUSE_INTSLACKS (bool value)
	Set the value of USE_INTSLACKS. More...

bool	getUSE_INTSLACKS () const
	Get the value of USE_INTSLACKS. More...

void	setUseIntSlacks (bool value)
	Aliases. More...

int	getUseIntSlacks () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setCHECK_DUPLICATES (bool value)
	Set the value of CHECK_DUPLICATES. More...

bool	getCHECK_DUPLICATES () const
	Get the value of CHECK_DUPLICATES. More...

void	setCheckDuplicates (bool value)
	Aliases. More...

bool	getCheckDuplicates () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setCLEAN_PROC (CleaningProcedure value)
	Set the value of CLEAN_PROC. More...

CleaningProcedure	getCLEAN_PROC () const
	Get the value of CLEAN_PROC. More...

void	setCleanProc (CleaningProcedure value)
	Aliases. More...

CleaningProcedure	getCleaningProcedure () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setINTEGRAL_SCALE_CONT (bool value)
	Set the value of INTEGRAL_SCALE_CONT. More...

bool	getINTEGRAL_SCALE_CONT () const
	Get the value of INTEGRAL_SCALE_CONT. More...

void	setIntegralScaleCont (bool value)
	Aliases. More...

bool	getIntegralScaleCont () const
	Aliases for parameter get/set method in the base class CglParam. More...

virtual void	setENFORCE_SCALING (bool value)
	Set the value of ENFORCE_SCALING. More...

bool	getENFORCE_SCALING () const
	Get the value of ENFORCE_SCALING. More...

void	setEnforceScaling (bool value)
	Aliases. More...

bool	getEnforcescaling () const
	Aliases for parameter get/set method in the base class CglParam. More...

Constructors and destructors
	CglGMIParam (double eps=1e-12, double away=0.005, double eps_coeff=1e-11, double eps_elim=0, double eps_relax_abs=1e-11, double eps_relax_rel=1e-13, double max_dyn=1e6, double min_viol=1e-4, int max_supp_abs=1000, double max_supp_rel=0.1, CleaningProcedure clean_proc=CP_CGLLANDP1, bool use_int_slacks=false, bool check_duplicates=false, bool integral_scale_cont=false, bool enforce_scaling=true)
	Default constructor. More...

	CglGMIParam (CglParam &source, double away=0.005, double eps_elim=1e-12, double eps_relax_abs=1e-11, double eps_relax_rel=1e-13, double max_dyn=1e6, double min_viol=1e-4, double max_supp_rel=0.1, CleaningProcedure clean_proc=CP_CGLLANDP1, bool use_int_slacks=false, bool check_duplicates=false, bool integral_scale_cont=false, bool enforce_scaling=true)
	Constructor from CglParam. More...

	CglGMIParam (const CglGMIParam &source)
	Copy constructor. More...

virtual CglGMIParam *	clone () const
	Clone. More...

virtual CglGMIParam &	operator= (const CglGMIParam &rhs)
	Assignment operator. More...

virtual	~CglGMIParam ()
	Destructor. More...

Public Member Functions inherited from CglParam
virtual void	setINFINIT (const double inf)
	Set INFINIT. More...

double	getINFINIT () const
	Get value of INFINIT. More...

virtual void	setEPS (const double eps)
	Set EPS. More...

double	getEPS () const
	Get value of EPS. More...

virtual void	setEPS_COEFF (const double eps_c)
	Set EPS_COEFF. More...

double	getEPS_COEFF () const
	Get value of EPS_COEFF. More...

virtual void	setMAX_SUPPORT (const int max_s)
	Set MAX_SUPPORT. More...

int	getMAX_SUPPORT () const
	Get value of MAX_SUPPORT. More...

	CglParam (const double inf=COIN_DBL_MAX, const double eps=1e-6, const double eps_c=1e-5, const int max_s=COIN_INT_MAX)
	Default constructor. More...

	CglParam (const CglParam &)
	Copy constructor. More...

CglParam &	operator= (const CglParam &rhs)
	Assignment operator. More...

virtual	~CglParam ()
	Destructor. More...

Protected Attributes
Parameters
double	AWAY
	Use row only if pivot variable should be integer but is more than AWAY from being integer. More...

double	EPS_ELIM
	Epsilon for value of coefficients when eliminating slack variables. More...

double	EPS_RELAX_ABS
	Value added to the right hand side of each generated cut to relax it. More...

double	EPS_RELAX_REL
	For a generated cut with right hand side rhs_val, EPS_RELAX_EPS * fabs(rhs_val) is used to relax the constraint. More...

double	MAXDYN
	Maximum ratio between largest and smallest non zero coefficients in a cut. More...

double	MINVIOL
	Minimum violation for the current basic solution in a generated cut. More...

double	MAX_SUPPORT_REL
	Maximum support relative to number of columns. More...

CleaningProcedure	CLEAN_PROC
	Which cleaning procedure should be used? More...

bool	USE_INTSLACKS
	Use integer slacks to generate cuts if USE_INTSLACKS = 1. More...

bool	CHECK_DUPLICATES
	Check for duplicates when adding the cut to the collection? More...

bool	INTEGRAL_SCALE_CONT
	Should we try to rescale cut coefficients on continuous variables so that they become integral, or do we only rescale coefficients on integral variables? Used only by cleaning procedure that try the integral scaling. More...

bool	ENFORCE_SCALING
	Should we discard badly scaled cuts (according to the scaling procedure in use)? If false, CglGMI::scaleCut always returns true, even though it still scales cuts whenever possible, but not cut is rejected for scaling. More...

Protected Attributes inherited from CglParam
double	INFINIT
	Maximum number of non zero coefficients in a generated cut; Default: COIN_INT_MAX. More...

double	EPS
	Maximum number of non zero coefficients in a generated cut; Default: COIN_INT_MAX. More...

double	EPS_COEFF
	Maximum number of non zero coefficients in a generated cut; Default: COIN_INT_MAX. More...

int	MAX_SUPPORT
	Maximum number of non zero coefficients in a generated cut; Default: COIN_INT_MAX. More...

Detailed Description

Class collecting parameters for the GMI cut generator.

Parameters of the generator are listed below. Modifying the default values for parameters other than the last four might result in invalid cuts.

MAXDYN: Maximum ratio between largest and smallest non zero coefficients in a cut. See method setMAXDYN().
EPS_ELIM: Precision for deciding if a coefficient is zero when eliminating slack variables. See method setEPS_ELIM().
MINVIOL: Minimum violation for the current basic solution in a generated cut. See method setMINVIOL().
USE_INTSLACKS: Use integer slacks to generate cuts. (not implemented yet, will be in the future). See method setUSE_INTSLACKS().
AWAY: Look only at basic integer variables whose current value is at least this value away from being integer. See method setAway().
CHECK_DUPLICATES: Should we check for duplicates when adding a cut to the collection? Can be slow. Default 0 - do not check, add cuts anyway.
CLEAN_PROC: Cleaning procedure that should be used. Look below at the enumeration CleaningProcedure for possible values.
INTEGRAL_SCALE_CONT: If we try to scale cut coefficients so that they become integral, do we also scale on continuous variables? Default 0 - do not scale continuous vars. Used only if CLEAN_PROC does integral scaling.
ENFORCE_SCALING: Discard badly scaled cuts, or keep them (unscaled). Default 1 - yes.

Definition at line 52 of file CglGMIParam.hpp.

Member Enumeration Documentation

enum CglGMIParam::CleaningProcedure

Enumerator
CP_CGLLANDP1
CP_CGLLANDP2
CP_CGLREDSPLIT
CP_INTEGRAL_CUTS
CP_CGLLANDP1_INT
CP_CGLLANDP1_SCALEMAX
CP_CGLLANDP1_SCALERHS

Definition at line 57 of file CglGMIParam.hpp.

Constructor & Destructor Documentation

CglGMIParam::CglGMIParam	(	double	eps = `1e-12`,
		double	away = `0.005`,
		double	eps_coeff = `1e-11`,
		double	eps_elim = `0`,
		double	eps_relax_abs = `1e-11`,
		double	eps_relax_rel = `1e-13`,
		double	max_dyn = `1e6`,
		double	min_viol = `1e-4`,
		int	max_supp_abs = `1000`,
		double	max_supp_rel = `0.1`,
		CleaningProcedure	clean_proc = `CP_CGLLANDP1`,
		bool	use_int_slacks = `false`,
		bool	check_duplicates = `false`,
		bool	integral_scale_cont = `false`,
		bool	enforce_scaling = `true`
	)

Default constructor.

CglGMIParam::CglGMIParam	(	CglParam &	source,
		double	away = `0.005`,
		double	eps_elim = `1e-12`,
		double	eps_relax_abs = `1e-11`,
		double	eps_relax_rel = `1e-13`,
		double	max_dyn = `1e6`,
		double	min_viol = `1e-4`,
		double	max_supp_rel = `0.1`,
		CleaningProcedure	clean_proc = `CP_CGLLANDP1`,
		bool	use_int_slacks = `false`,
		bool	check_duplicates = `false`,
		bool	integral_scale_cont = `false`,
		bool	enforce_scaling = `true`
	)

Constructor from CglParam.

CglGMIParam::CglGMIParam ( const CglGMIParam & source )

Copy constructor.

virtual CglGMIParam::~CglGMIParam ( )

virtual

Destructor.

Member Function Documentation

void CglGMIParam::setInfinity ( double value )

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 80 of file CglGMIParam.hpp.

double CglGMIParam::getInfinity ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 81 of file CglGMIParam.hpp.

void CglGMIParam::setEps ( double value )

inline

Epsilon for comparing numbers.

Default: 1.0e-6

Definition at line 84 of file CglGMIParam.hpp.

double CglGMIParam::getEps ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 85 of file CglGMIParam.hpp.

void CglGMIParam::setEpsCoeff ( double value )

inline

Epsilon for zeroing out coefficients.

Default: 1.0e-5

Definition at line 88 of file CglGMIParam.hpp.

double CglGMIParam::getEpsCoeff ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 89 of file CglGMIParam.hpp.

void CglGMIParam::setMaxSupport ( int value )

inline

Maximum support of the cutting planes.

Default: INT_MAX

Definition at line 92 of file CglGMIParam.hpp.

int CglGMIParam::getMaxSupport ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 93 of file CglGMIParam.hpp.

void CglGMIParam::setMaxSupportAbs ( int value )

inline

Alias for consistency with our naming scheme.

Definition at line 95 of file CglGMIParam.hpp.

int CglGMIParam::getMaxSupportAbs ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 96 of file CglGMIParam.hpp.

int CglGMIParam::getMAX_SUPPORT_ABS ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 97 of file CglGMIParam.hpp.

virtual void CglGMIParam::setAway ( double value )

virtual

Set AWAY, the minimum distance from being integer used for selecting rows for cut generation; all rows whose pivot variable should be integer but is more than away from integrality will be selected; Default: 0.005.

double CglGMIParam::getAway ( ) const

inline

Get value of away.

Definition at line 105 of file CglGMIParam.hpp.

void CglGMIParam::setAWAY ( double value )

inline

Aliases.

Definition at line 107 of file CglGMIParam.hpp.

double CglGMIParam::getAWAY ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 108 of file CglGMIParam.hpp.

virtual void CglGMIParam::setEPS_ELIM ( double value )

virtual

Set the value of EPS_ELIM, epsilon for values of coefficients when eliminating slack variables; Default: 0.

double CglGMIParam::getEPS_ELIM ( ) const

inline

Get the value of EPS_ELIM.

Definition at line 115 of file CglGMIParam.hpp.

void CglGMIParam::setEpsElim ( double value )

inline

Aliases.

Definition at line 117 of file CglGMIParam.hpp.

double CglGMIParam::getEpsElim ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 118 of file CglGMIParam.hpp.

virtual void CglGMIParam::setEPS_RELAX_ABS ( double value )

virtual

Set EPS_RELAX_ABS.

double CglGMIParam::getEPS_RELAX_ABS ( ) const

inline

Get value of EPS_RELAX_ABS.

Definition at line 123 of file CglGMIParam.hpp.

void CglGMIParam::setEpsRelaxAbs ( double value )

inline

Aliases.

Definition at line 125 of file CglGMIParam.hpp.

double CglGMIParam::getEpsRelaxAbs ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 126 of file CglGMIParam.hpp.

virtual void CglGMIParam::setEPS_RELAX_REL ( double value )

virtual

Set EPS_RELAX_REL.

double CglGMIParam::getEPS_RELAX_REL ( ) const

inline

Get value of EPS_RELAX_REL.

Definition at line 131 of file CglGMIParam.hpp.

void CglGMIParam::setEpsRelaxRel ( double value )

inline

Aliases.

Definition at line 133 of file CglGMIParam.hpp.

double CglGMIParam::getEpsRelaxRel ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 134 of file CglGMIParam.hpp.

virtual void CglGMIParam::setMAXDYN ( double value )

virtual

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

double CglGMIParam::getMAXDYN ( ) const

inline

Get the value of MAXDYN.

Definition at line 140 of file CglGMIParam.hpp.

void CglGMIParam::setMaxDyn ( double value )

inline

Aliases.

Definition at line 142 of file CglGMIParam.hpp.

double CglGMIParam::getMaxDyn ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 143 of file CglGMIParam.hpp.

virtual void CglGMIParam::setMINVIOL ( double value )

virtual

Set the value of MINVIOL, the minimum violation for the current basic solution in a generated cut.

Default: 1e-7

double CglGMIParam::getMINVIOL ( ) const

inline

Get the value of MINVIOL.

Definition at line 149 of file CglGMIParam.hpp.

void CglGMIParam::setMinViol ( double value )

inline

Aliases.

Definition at line 151 of file CglGMIParam.hpp.

double CglGMIParam::getMinViol ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 152 of file CglGMIParam.hpp.

virtual void CglGMIParam::setMAX_SUPPORT_REL ( double value )

virtual

Set the value of MAX_SUPPORT_REL, the factor contributing to the maximum support relative to the number of columns.

Maximum allowed support is: MAX_SUPPORT_ABS + MAX_SUPPORT_REL*ncols. Default: 0.1

double CglGMIParam::getMAX_SUPPORT_REL ( ) const

inline

Get the value of MINVIOL.

Definition at line 160 of file CglGMIParam.hpp.

void CglGMIParam::setMaxSupportRel ( double value )

inline

Aliases.

Definition at line 162 of file CglGMIParam.hpp.

double CglGMIParam::getMaxSupportRel ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 163 of file CglGMIParam.hpp.

virtual void CglGMIParam::setUSE_INTSLACKS ( bool value )

virtual

Set the value of USE_INTSLACKS.

Default: 0

bool CglGMIParam::getUSE_INTSLACKS ( ) const

inline

Get the value of USE_INTSLACKS.

Definition at line 168 of file CglGMIParam.hpp.

void CglGMIParam::setUseIntSlacks ( bool value )

inline

Aliases.

Definition at line 170 of file CglGMIParam.hpp.

int CglGMIParam::getUseIntSlacks ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 171 of file CglGMIParam.hpp.

virtual void CglGMIParam::setCHECK_DUPLICATES ( bool value )

virtual

Set the value of CHECK_DUPLICATES.

Default: 0

bool CglGMIParam::getCHECK_DUPLICATES ( ) const

inline

Get the value of CHECK_DUPLICATES.

Definition at line 176 of file CglGMIParam.hpp.

void CglGMIParam::setCheckDuplicates ( bool value )

inline

Aliases.

Definition at line 178 of file CglGMIParam.hpp.

bool CglGMIParam::getCheckDuplicates ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 179 of file CglGMIParam.hpp.

virtual void CglGMIParam::setCLEAN_PROC ( CleaningProcedure value )

virtual

Set the value of CLEAN_PROC.

Default: CP_CGLLANDP1

CleaningProcedure CglGMIParam::getCLEAN_PROC ( ) const

inline

Get the value of CLEAN_PROC.

Definition at line 184 of file CglGMIParam.hpp.

void CglGMIParam::setCleanProc ( CleaningProcedure value )

inline

Aliases.

Definition at line 186 of file CglGMIParam.hpp.

CleaningProcedure CglGMIParam::getCleaningProcedure ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 187 of file CglGMIParam.hpp.

virtual void CglGMIParam::setINTEGRAL_SCALE_CONT ( bool value )

virtual

Set the value of INTEGRAL_SCALE_CONT.

Default: 0

bool CglGMIParam::getINTEGRAL_SCALE_CONT ( ) const

inline

Get the value of INTEGRAL_SCALE_CONT.

Definition at line 192 of file CglGMIParam.hpp.

void CglGMIParam::setIntegralScaleCont ( bool value )

inline

Aliases.

Definition at line 194 of file CglGMIParam.hpp.

bool CglGMIParam::getIntegralScaleCont ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 195 of file CglGMIParam.hpp.

virtual void CglGMIParam::setENFORCE_SCALING ( bool value )

virtual

Set the value of ENFORCE_SCALING.

Default: 1

bool CglGMIParam::getENFORCE_SCALING ( ) const

inline

Get the value of ENFORCE_SCALING.

Definition at line 200 of file CglGMIParam.hpp.

void CglGMIParam::setEnforceScaling ( bool value )

inline

Aliases.

Definition at line 202 of file CglGMIParam.hpp.

bool CglGMIParam::getEnforcescaling ( ) const

inline

Aliases for parameter get/set method in the base class CglParam.

Value for Infinity. Default: DBL_MAX

Definition at line 203 of file CglGMIParam.hpp.

virtual CglGMIParam* CglGMIParam::clone ( ) const

virtual

Clone.

Reimplemented from CglParam.

virtual CglGMIParam& CglGMIParam::operator= ( const CglGMIParam & rhs )

virtual

Assignment operator.

Member Data Documentation

double CglGMIParam::AWAY

protected

Use row only if pivot variable should be integer but is more than AWAY from being integer.

Definition at line 261 of file CglGMIParam.hpp.

double CglGMIParam::EPS_ELIM

protected

Epsilon for value of coefficients when eliminating slack variables.

Default: 0.

Definition at line 265 of file CglGMIParam.hpp.

double CglGMIParam::EPS_RELAX_ABS

protected

Value added to the right hand side of each generated cut to relax it.

Default: 1e-11

Definition at line 269 of file CglGMIParam.hpp.

double CglGMIParam::EPS_RELAX_REL

protected

For a generated cut with right hand side rhs_val, EPS_RELAX_EPS * fabs(rhs_val) is used to relax the constraint.

Default: 1.e-13

Definition at line 274 of file CglGMIParam.hpp.

double CglGMIParam::MAXDYN

protected

Maximum ratio between largest and smallest non zero coefficients in a cut.

Default: 1e6.

Definition at line 278 of file CglGMIParam.hpp.

double CglGMIParam::MINVIOL

protected

Minimum violation for the current basic solution in a generated cut.

Default: 1e-4.

Definition at line 282 of file CglGMIParam.hpp.

double CglGMIParam::MAX_SUPPORT_REL

protected

Maximum support relative to number of columns.

Must be between 0 and 1. Default: 0.

Definition at line 286 of file CglGMIParam.hpp.

CleaningProcedure CglGMIParam::CLEAN_PROC

protected

Which cleaning procedure should be used?

Definition at line 289 of file CglGMIParam.hpp.

bool CglGMIParam::USE_INTSLACKS

protected

Use integer slacks to generate cuts if USE_INTSLACKS = 1.

Default: 0.

Definition at line 292 of file CglGMIParam.hpp.

bool CglGMIParam::CHECK_DUPLICATES

protected

Check for duplicates when adding the cut to the collection?

Definition at line 295 of file CglGMIParam.hpp.

bool CglGMIParam::INTEGRAL_SCALE_CONT

protected

Should we try to rescale cut coefficients on continuous variables so that they become integral, or do we only rescale coefficients on integral variables? Used only by cleaning procedure that try the integral scaling.

Definition at line 301 of file CglGMIParam.hpp.

bool CglGMIParam::ENFORCE_SCALING

protected

Should we discard badly scaled cuts (according to the scaling procedure in use)? If false, CglGMI::scaleCut always returns true, even though it still scales cuts whenever possible, but not cut is rejected for scaling.

Default true. Used only by cleaning procedure that try to scale.

Definition at line 308 of file CglGMIParam.hpp.

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

/home/coin/svn-release/Blis-0.94.3/Cgl/src/CglGMI/CglGMIParam.hpp

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