Separators

Detailed Description

methods for separator plugins

Functions
SCIP_EXPORT	SCIP_DECL_SORTPTRCOMP (SCIPsepaComp)
SCIP_EXPORT	SCIP_DECL_SORTPTRCOMP (SCIPsepaCompName)
SCIP_EXPORT SCIP_SEPADATA *	SCIPsepaGetData (SCIP_SEPA *sepa)
SCIP_EXPORT void	SCIPsepaSetData (SCIP_SEPA *sepa, SCIP_SEPADATA *sepadata)
SCIP_EXPORT const char *	SCIPsepaGetName (SCIP_SEPA *sepa)
SCIP_EXPORT const char *	SCIPsepaGetDesc (SCIP_SEPA *sepa)
SCIP_EXPORT int	SCIPsepaGetPriority (SCIP_SEPA *sepa)
SCIP_EXPORT int	SCIPsepaGetFreq (SCIP_SEPA *sepa)
SCIP_EXPORT void	SCIPsepaSetFreq (SCIP_SEPA *sepa, int freq)
SCIP_EXPORT SCIP_Real	SCIPsepaGetMaxbounddist (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Bool	SCIPsepaUsesSubscip (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Real	SCIPsepaGetSetupTime (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Real	SCIPsepaGetTime (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNCalls (SCIP_SEPA *sepa)
SCIP_EXPORT int	SCIPsepaGetNCallsAtNode (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNCutoffs (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNCutsFound (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNCutsApplied (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNCutsFoundAtNode (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNConssFound (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Longint	SCIPsepaGetNDomredsFound (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Bool	SCIPsepaIsDelayed (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Bool	SCIPsepaWasLPDelayed (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Bool	SCIPsepaWasSolDelayed (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_Bool	SCIPsepaIsInitialized (SCIP_SEPA *sepa)
SCIP_EXPORT SCIP_RETCODE	SCIPincludeSepa (SCIP *scip, const char *name, const char *desc, int priority, int freq, SCIP_Real maxbounddist, SCIP_Bool usessubscip, SCIP_Bool delay, SCIP_DECL_SEPACOPY((*sepacopy)), SCIP_DECL_SEPAFREE((*sepafree)), SCIP_DECL_SEPAINIT((*sepainit)), SCIP_DECL_SEPAEXIT((*sepaexit)), SCIP_DECL_SEPAINITSOL((*sepainitsol)), SCIP_DECL_SEPAEXITSOL((*sepaexitsol)), SCIP_DECL_SEPAEXECLP((*sepaexeclp)), SCIP_DECL_SEPAEXECSOL((*sepaexecsol)), SCIP_SEPADATA *sepadata)
SCIP_EXPORT SCIP_RETCODE	SCIPincludeSepaBasic (SCIP *scip, SCIP_SEPA **sepa, const char *name, const char *desc, int priority, int freq, SCIP_Real maxbounddist, SCIP_Bool usessubscip, SCIP_Bool delay, SCIP_DECL_SEPAEXECLP((*sepaexeclp)), SCIP_DECL_SEPAEXECSOL((*sepaexecsol)), SCIP_SEPADATA *sepadata)
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaCopy (SCIP *scip, SCIP_SEPA *sepa, SCIP_DECL_SEPACOPY((*sepacopy)))
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaFree (SCIP *scip, SCIP_SEPA *sepa, SCIP_DECL_SEPAFREE((*sepafree)))
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaInit (SCIP *scip, SCIP_SEPA *sepa, SCIP_DECL_SEPAINIT((*sepainit)))
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaExit (SCIP *scip, SCIP_SEPA *sepa, SCIP_DECL_SEPAEXIT((*sepaexit)))
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaInitsol (SCIP *scip, SCIP_SEPA *sepa, SCIP_DECL_SEPAINITSOL((*sepainitsol)))
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaExitsol (SCIP *scip, SCIP_SEPA *sepa, SCIP_DECL_SEPAEXITSOL((*sepaexitsol)))
SCIP_EXPORT SCIP_SEPA *	SCIPfindSepa (SCIP *scip, const char *name)
SCIP_EXPORT SCIP_SEPA **	SCIPgetSepas (SCIP *scip)
SCIP_EXPORT int	SCIPgetNSepas (SCIP *scip)
SCIP_EXPORT SCIP_RETCODE	SCIPsetSepaPriority (SCIP *scip, SCIP_SEPA *sepa, int priority)
SCIP_EXPORT SCIP_Real	SCIPgetSepaMinEfficacy (SCIP *scip)

Function Documentation

SCIP_DECL_SORTPTRCOMP() [1/2]

SCIP_EXPORT SCIP_DECL_SORTPTRCOMP

(

SCIPsepaComp

)

compares two separators w. r. to their priority

Definition at line 42 of file sepa.c.

SCIP_DECL_SORTPTRCOMP() [2/2]

SCIP_EXPORT SCIP_DECL_SORTPTRCOMP

(

SCIPsepaCompName

)

comparison method for sorting separators w.r.t. to their name

Definition at line 48 of file sepa.c.

References SCIPsepaGetName().

SCIPsepaGetData()

SCIP_EXPORT SCIP_SEPADATA* SCIPsepaGetData

(

SCIP_SEPA *

sepa

)

gets user data of separator

Parameters

sepa

separator

Definition at line 607 of file sepa.c.

References NULL, and SCIP_Sepa::sepadata.

Referenced by aggregation(), doSeparation(), freeSubscip(), generateCut(), SCIP_DECL_SEPACOPY(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXECSOL(), SCIP_DECL_SEPAEXIT(), SCIP_DECL_SEPAEXITSOL(), SCIP_DECL_SEPAFREE(), SCIP_DECL_SEPAINIT(), SCIP_DECL_SEPAINITSOL(), SCIPfindObjSepa(), SCIPgetObjSepa(), SCIPsetBasePointClosecuts(), separateCuts(), and separateOddCycles().

SCIPsepaSetData()

SCIP_EXPORT void SCIPsepaSetData	(	SCIP_SEPA *	sepa,
		SCIP_SEPADATA *	sepadata
	)

sets user data of separator; user has to free old data in advance!

Parameters

sepa	separator
sepadata	new separator user data

Definition at line 617 of file sepa.c.

References NULL, and SCIP_Sepa::sepadata.

Referenced by SCIP_DECL_SEPAFREE().

SCIPsepaGetName()

SCIP_EXPORT const char* SCIPsepaGetName

(

SCIP_SEPA *

sepa

)

gets name of separator

Parameters

sepa

separator

Definition at line 696 of file sepa.c.

References SCIP_Sepa::name, and NULL.

Referenced by generateDisjCutSOS1(), paramsetSetSeparatingAggressive(), paramsetSetSeparatingDefault(), paramsetSetSeparatingOff(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_SEPACOPY(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXECSOL(), SCIP_DECL_SEPAEXITSOL(), SCIP_DECL_SEPAFREE(), SCIP_DECL_SEPAINITSOL(), SCIP_DECL_SORTPTRCOMP(), SCIPcopyConcurrentSolvingStats(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), SCIPparamsetSetToSubscipsOff(), SCIPprintSeparatorStatistics(), SCIPsepaCopyInclude(), SCIPsetBasePointClosecuts(), SCIPsetFindRelax(), separateCuts(), separateSequLiftedExtendedWeightInequality(), separateSequLiftedMinimalCoverInequality(), separateSupLiftedMinimalCoverInequality(), separationRoundLP(), and separationRoundSol().

SCIPsepaGetDesc()

SCIP_EXPORT const char* SCIPsepaGetDesc

(

SCIP_SEPA *

sepa

)

gets description of separator

Parameters

sepa

separator

Definition at line 706 of file sepa.c.

References SCIP_Sepa::desc, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

SCIPsepaGetPriority()

SCIP_EXPORT int SCIPsepaGetPriority

(

SCIP_SEPA *

sepa

)

gets priority of separator

Parameters

sepa

separator

Definition at line 716 of file sepa.c.

References NULL, and SCIP_Sepa::priority.

Referenced by SCIP_DECL_DIALOGEXEC(), separationRoundLP(), and separationRoundSol().

SCIPsepaGetFreq()

SCIP_EXPORT int SCIPsepaGetFreq

(

SCIP_SEPA *

sepa

)

gets frequency of separator

Parameters

sepa

separator

Definition at line 740 of file sepa.c.

References SCIP_Sepa::freq, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), and separateCuts().

SCIPsepaSetFreq()

SCIP_EXPORT void SCIPsepaSetFreq	(	SCIP_SEPA *	sepa,
		int	freq
	)

sets frequency of separator

Parameters

sepa	separator
freq	new frequency of separator

Definition at line 750 of file sepa.c.

References SCIP_Sepa::freq, and NULL.

SCIPsepaGetMaxbounddist()

SCIP_EXPORT SCIP_Real SCIPsepaGetMaxbounddist

(

SCIP_SEPA *

sepa

)

get maximal bound distance at which the separator is called

Parameters

sepa

separator

Definition at line 761 of file sepa.c.

References SCIP_Sepa::maxbounddist, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC().

SCIPsepaUsesSubscip()

SCIP_EXPORT SCIP_Bool SCIPsepaUsesSubscip

(

SCIP_SEPA *

sepa

)

does the separator use a secondary SCIP instance?

Parameters

sepa

separator

Definition at line 771 of file sepa.c.

References NULL, and SCIP_Sepa::usessubscip.

Referenced by SCIPparamsetSetToSubscipsOff().

SCIPsepaGetSetupTime()

SCIP_EXPORT SCIP_Real SCIPsepaGetSetupTime

(

SCIP_SEPA *

sepa

)

gets time in seconds used in this separator for setting up for next stages

Parameters

sepa

separator

Definition at line 793 of file sepa.c.

References NULL, SCIPclockGetTime(), and SCIP_Sepa::setuptime.

Referenced by SCIPprintSeparatorStatistics().

SCIPsepaGetTime()

SCIP_EXPORT SCIP_Real SCIPsepaGetTime

(

SCIP_SEPA *

sepa

)

gets time in seconds used in this separator

Parameters

sepa

separator

Definition at line 803 of file sepa.c.

References NULL, SCIPclockGetTime(), and SCIP_Sepa::sepaclock.

Referenced by SCIPprintSeparatorStatistics(), and separateOddCycles().

SCIPsepaGetNCalls()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNCalls

(

SCIP_SEPA *

sepa

)

gets the total number of times, the separator was called

Parameters

sepa

separator

Definition at line 813 of file sepa.c.

References SCIP_Sepa::ncalls, and NULL.

Referenced by SCIPprintSeparatorStatistics(), and separateCuts().

SCIPsepaGetNCallsAtNode()

SCIP_EXPORT int SCIPsepaGetNCallsAtNode

(

SCIP_SEPA *

sepa

)

gets the number of times, the separator was called at the current node

Parameters

sepa

separator

Definition at line 823 of file sepa.c.

References SCIP_Sepa::ncallsatnode, and NULL.

Referenced by doSeparation(), SCIP_DECL_SEPAEXECLP(), separateCuts(), and separateOddCycles().

SCIPsepaGetNCutoffs()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNCutoffs

(

SCIP_SEPA *

sepa

)

gets total number of times, the separator detected a cutoff

Parameters

sepa

separator

Definition at line 833 of file sepa.c.

References SCIP_Sepa::ncutoffs, and NULL.

Referenced by SCIPprintSeparatorStatistics().

SCIPsepaGetNCutsFound()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNCutsFound

(

SCIP_SEPA *

sepa

)

gets the total number of cutting planes found by this separator

Parameters

sepa

separator

Definition at line 843 of file sepa.c.

References SCIP_Sepa::ncutsfound, and NULL.

Referenced by SCIPprintSeparatorStatistics(), separateSequLiftedExtendedWeightInequality(), separateSequLiftedMinimalCoverInequality(), and separateSupLiftedMinimalCoverInequality().

SCIPsepaGetNCutsApplied()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNCutsApplied

(

SCIP_SEPA *

sepa

)

gets the total number of cutting planes applied to lp

Parameters

sepa

separator

Definition at line 853 of file sepa.c.

References SCIP_Sepa::ncutsapplied, and NULL.

Referenced by SCIPprintSeparatorStatistics().

SCIPsepaGetNCutsFoundAtNode()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNCutsFoundAtNode

(

SCIP_SEPA *

sepa

)

gets the number of cutting planes found by this separator at the current node

Parameters

sepa

separator

Definition at line 893 of file sepa.c.

References SCIP_Sepa::ncutsfoundatnode, and NULL.

SCIPsepaGetNConssFound()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNConssFound

(

SCIP_SEPA *

sepa

)

gets total number of additional constraints added by this separator

Parameters

sepa

separator

Definition at line 903 of file sepa.c.

References SCIP_Sepa::nconssfound, and NULL.

Referenced by SCIPprintSeparatorStatistics().

SCIPsepaGetNDomredsFound()

SCIP_EXPORT SCIP_Longint SCIPsepaGetNDomredsFound

(

SCIP_SEPA *

sepa

)

gets total number of domain reductions found by this separator

Parameters

sepa

separator

Definition at line 913 of file sepa.c.

References SCIP_Sepa::ndomredsfound, and NULL.

Referenced by SCIPprintSeparatorStatistics().

SCIPsepaIsDelayed()

SCIP_EXPORT SCIP_Bool SCIPsepaIsDelayed

(

SCIP_SEPA *

sepa

)

should separator be delayed, if other separators found cuts?

Parameters

sepa

separator

Definition at line 923 of file sepa.c.

References SCIP_Sepa::delay, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC().

SCIPsepaWasLPDelayed()

SCIP_EXPORT SCIP_Bool SCIPsepaWasLPDelayed

(

SCIP_SEPA *

sepa

)

was separation of the LP solution delayed at the last call?

Parameters

sepa

separator

Definition at line 933 of file sepa.c.

References SCIP_Sepa::lpwasdelayed, and NULL.

Referenced by SCIP_DECL_SEPAEXECLP(), separateCuts(), and separationRoundLP().

SCIPsepaWasSolDelayed()

SCIP_EXPORT SCIP_Bool SCIPsepaWasSolDelayed

(

SCIP_SEPA *

sepa

)

was separation of the primal solution delayed at the last call?

Parameters

sepa

separator

Definition at line 943 of file sepa.c.

References NULL, and SCIP_Sepa::solwasdelayed.

Referenced by separationRoundSol().

SCIPsepaIsInitialized()

SCIP_EXPORT SCIP_Bool SCIPsepaIsInitialized

(

SCIP_SEPA *

sepa

)

is separator initialized?

Parameters

sepa

separator

Definition at line 953 of file sepa.c.

References SCIP_Sepa::initialized, and NULL.

Referenced by SCIPsetIncludeRelax().

SCIPincludeSepa()

SCIP_EXPORT SCIP_RETCODE SCIPincludeSepa	(	SCIP *	scip,
		const char *	name,
		const char *	desc,
		int	priority,
		int	freq,
		SCIP_Real	maxbounddist,
		SCIP_Bool	usessubscip,
		SCIP_Bool	delay,
		SCIP_DECL_SEPACOPY((*sepacopy))	,
		SCIP_DECL_SEPAFREE((*sepafree))	,
		SCIP_DECL_SEPAINIT((*sepainit))	,
		SCIP_DECL_SEPAEXIT((*sepaexit))	,
		SCIP_DECL_SEPAINITSOL((*sepainitsol))	,
		SCIP_DECL_SEPAEXITSOL((*sepaexitsol))	,
		SCIP_DECL_SEPAEXECLP((*sepaexeclp))	,
		SCIP_DECL_SEPAEXECSOL((*sepaexecsol))	,
		SCIP_SEPADATA *	sepadata
	)

creates a separator and includes it in SCIP.

Note

method has all separator callbacks as arguments and is thus changed every time a new callback is added in future releases; consider using SCIPincludeSepaBasic() and setter functions if you seek for a method which is less likely to change in future releases

Parameters

scip	SCIP data structure
name	name of separator
desc	description of separator
priority	priority of separator (>= 0: before, < 0: after constraint handlers)
freq	frequency for calling separator
maxbounddist	maximal relative distance from current node's dual bound to primal bound compared to best node's dual bound for applying separation
usessubscip	does the separator use a secondary SCIP instance?
delay	should separator be delayed, if other separators found cuts?
sepadata	separator data

Definition at line 52 of file scip_sepa.c.

References FALSE, Scip::mem, Scip::messagehdlr, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPfindSepa(), SCIPsepaCreate(), SCIPsetIncludeSepa(), Scip::set, SCIP_Mem::setmem, and TRUE.

Referenced by SCIPincludeObjSepa().

SCIPincludeSepaBasic()

SCIP_EXPORT SCIP_RETCODE SCIPincludeSepaBasic	(	SCIP *	scip,
		SCIP_SEPA **	sepa,
		const char *	name,
		const char *	desc,
		int	priority,
		int	freq,
		SCIP_Real	maxbounddist,
		SCIP_Bool	usessubscip,
		SCIP_Bool	delay,
		SCIP_DECL_SEPAEXECLP((*sepaexeclp))	,
		SCIP_DECL_SEPAEXECSOL((*sepaexecsol))	,
		SCIP_SEPADATA *	sepadata
	)

creates a separator and includes it in SCIP with its most fundamental callbacks. All non-fundamental (or optional) callbacks as, e.g., init and exit callbacks, will be set to NULL. Optional callbacks can be set via specific setter functions, see SCIPsetSepaInit(), SCIPsetSepaFree(), SCIPsetSepaInitsol(), SCIPsetSepaExitsol(), SCIPsetSepaCopy(), SCIPsetExit().

Note

if you want to set all callbacks with a single method call, consider using SCIPincludeSepa() instead

Parameters

scip	SCIP data structure
sepa	reference to a separator, or NULL
name	name of separator
desc	description of separator
priority	priority of separator (>= 0: before, < 0: after constraint handlers)
freq	frequency for calling separator
maxbounddist	maximal relative distance from current node's dual bound to primal bound compared to best node's dual bound for applying separation
usessubscip	does the separator use a secondary SCIP instance?
delay	should separator be delayed, if other separators found cuts?
sepadata	separator data

Definition at line 99 of file scip_sepa.c.

References FALSE, Scip::mem, Scip::messagehdlr, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPfindSepa(), SCIPsepaCreate(), SCIPsetIncludeSepa(), Scip::set, SCIP_Mem::setmem, and TRUE.

Referenced by SCIPincludeSepaCGMIP(), SCIPincludeSepaClique(), SCIPincludeSepaClosecuts(), SCIPincludeSepaConvexproj(), SCIPincludeSepaDisjunctive(), SCIPincludeSepaEccuts(), SCIPincludeSepaEdge(), SCIPincludeSepaGauge(), SCIPincludeSepaGMI(), SCIPincludeSepaGomory(), SCIPincludeSepaImpliedbounds(), SCIPincludeSepaIntobj(), SCIPincludeSepaMcf(), SCIPincludeSepaOddcycle(), SCIPincludeSepaPartition(), SCIPincludeSepaStrongcg(), SCIPincludeSepaSubtour(), and SCIPincludeSepaZerohalf().

SCIPsetSepaCopy()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaCopy	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		SCIP_DECL_SEPACOPY((*sepacopy))
	)

sets copy method of separator

Parameters

scip	SCIP data structure
sepa	separator

Definition at line 141 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsepaSetCopy(), and TRUE.

Referenced by SCIPincludeSepaCGMIP(), SCIPincludeSepaClique(), SCIPincludeSepaClosecuts(), SCIPincludeSepaDisjunctive(), SCIPincludeSepaEccuts(), SCIPincludeSepaEdge(), SCIPincludeSepaGMI(), SCIPincludeSepaGomory(), SCIPincludeSepaImpliedbounds(), SCIPincludeSepaIntobj(), SCIPincludeSepaMcf(), SCIPincludeSepaOddcycle(), SCIPincludeSepaPartition(), SCIPincludeSepaStrongcg(), SCIPincludeSepaSubtour(), and SCIPincludeSepaZerohalf().

SCIPsetSepaFree()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaFree	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		SCIP_DECL_SEPAFREE((*sepafree))
	)

sets destructor method of separator

Parameters

scip	SCIP data structure
sepa	separator

Definition at line 157 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsepaSetFree(), and TRUE.

Referenced by SCIPincludeSepaCGMIP(), SCIPincludeSepaClique(), SCIPincludeSepaClosecuts(), SCIPincludeSepaConvexproj(), SCIPincludeSepaDisjunctive(), SCIPincludeSepaEccuts(), SCIPincludeSepaGauge(), SCIPincludeSepaGMI(), SCIPincludeSepaGomory(), SCIPincludeSepaImpliedbounds(), SCIPincludeSepaIntobj(), SCIPincludeSepaMcf(), SCIPincludeSepaOddcycle(), SCIPincludeSepaStrongcg(), and SCIPincludeSepaZerohalf().

SCIPsetSepaInit()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaInit	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		SCIP_DECL_SEPAINIT((*sepainit))
	)

sets initialization method of separator

Parameters

scip	SCIP data structure
sepa	separator

Definition at line 173 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsepaSetInit(), and TRUE.

Referenced by SCIPincludeSepaCGMIP(), SCIPincludeSepaGomory(), SCIPincludeSepaOddcycle(), and SCIPincludeSepaStrongcg().

SCIPsetSepaExit()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaExit	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		SCIP_DECL_SEPAEXIT((*sepaexit))
	)

sets deinitialization method of separator

Parameters

scip	SCIP data structure
sepa	separator

Definition at line 189 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsepaSetExit(), and TRUE.

Referenced by SCIPincludeSepaCGMIP(), SCIPincludeSepaGomory(), SCIPincludeSepaIntobj(), and SCIPincludeSepaStrongcg().

SCIPsetSepaInitsol()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaInitsol	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		SCIP_DECL_SEPAINITSOL((*sepainitsol))
	)

sets solving process initialization method of separator

Parameters

scip	SCIP data structure
sepa	separator

Definition at line 205 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsepaSetInitsol(), and TRUE.

Referenced by SCIPincludeSepaDisjunctive(), SCIPincludeSepaMcf(), SCIPincludeSepaOddcycle(), and SCIPincludeSepaZerohalf().

SCIPsetSepaExitsol()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaExitsol	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		SCIP_DECL_SEPAEXITSOL((*sepaexitsol))
	)

sets solving process deinitialization method of separator

Parameters

scip	SCIP data structure
sepa	separator

Definition at line 221 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPsepaSetExitsol(), and TRUE.

Referenced by SCIPincludeSepaClique(), SCIPincludeSepaClosecuts(), SCIPincludeSepaConvexproj(), SCIPincludeSepaEccuts(), SCIPincludeSepaGauge(), SCIPincludeSepaIntobj(), SCIPincludeSepaMcf(), and SCIPincludeSepaZerohalf().

SCIPfindSepa()

SCIP_EXPORT SCIP_SEPA* SCIPfindSepa	(	SCIP *	scip,
		const char *	name
	)

returns the separator of the given name, or NULL if not existing

Parameters

scip	SCIP data structure
name	name of separator

Definition at line 237 of file scip_sepa.c.

References NULL, SCIPsetFindSepa(), and Scip::set.

Referenced by SCIPcopyConcurrentSolvingStats(), SCIPfindObjSepa(), SCIPincludeSepa(), SCIPincludeSepaBasic(), and SCIPsetBasePointClosecuts().

SCIPgetSepas()

SCIP_EXPORT SCIP_SEPA** SCIPgetSepas

(

SCIP *

scip

)

returns the array of currently available separators

Parameters

scip	SCIP data structure

Definition at line 250 of file scip_sepa.c.

References NULL, SCIPsetSortSepas(), SCIP_Set::sepas, and Scip::set.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPcopyConcurrentSolvingStats(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

SCIPgetNSepas()

SCIP_EXPORT int SCIPgetNSepas

(

SCIP *

scip

)

returns the number of currently available separators

Parameters

scip	SCIP data structure

Definition at line 263 of file scip_sepa.c.

References SCIP_Set::nsepas, NULL, and Scip::set.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPcopyConcurrentSolvingStats(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

SCIPsetSepaPriority()

SCIP_EXPORT SCIP_RETCODE SCIPsetSepaPriority	(	SCIP *	scip,
		SCIP_SEPA *	sepa,
		int	priority
	)

sets the priority of a separator

Parameters

scip	SCIP data structure
sepa	separator
priority	new priority of the separator

Definition at line 274 of file scip_sepa.c.

References NULL, SCIP_OKAY, SCIPsepaSetPriority(), and Scip::set.

Referenced by SCIP_DECL_PARAMCHGD().

SCIPgetSepaMinEfficacy()

SCIP_EXPORT SCIP_Real SCIPgetSepaMinEfficacy

(

SCIP *

scip

)

gets value of minimal efficacy for a cut to enter the LP

Precondition

This method can be called if scip is in one of the following stages:

• SCIP_STAGE_SOLVING

Returns

value of "separating/minefficacyroot" if at root node, otherwise value of "separating/minefficacy"

Parameters

scip	SCIP data structure

Definition at line 297 of file scip_sepa.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPtreeGetCurrentDepth(), SCIP_Set::sepa_minefficacy, SCIP_Set::sepa_minefficacyroot, Scip::set, Scip::tree, and TRUE.

Referenced by SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIPcleanupRowprep(), and separatePoint().