pub_presol.h File Reference

Detailed Description

public methods for presolvers

Author

Tobias Achterberg

Definition in file pub_presol.h.

#include "scip/def.h"
#include "scip/type_misc.h"
#include "scip/type_presol.h"

Go to the source code of this file.

Functions
	SCIP_DECL_SORTPTRCOMP (SCIPpresolComp)
	SCIP_DECL_SORTPTRCOMP (SCIPpresolCompName)
SCIP_PRESOLDATA *	SCIPpresolGetData (SCIP_PRESOL *presol)
void	SCIPpresolSetData (SCIP_PRESOL *presol, SCIP_PRESOLDATA *presoldata)
const char *	SCIPpresolGetName (SCIP_PRESOL *presol)
const char *	SCIPpresolGetDesc (SCIP_PRESOL *presol)
int	SCIPpresolGetPriority (SCIP_PRESOL *presol)
int	SCIPpresolGetMaxrounds (SCIP_PRESOL *presol)
SCIP_PRESOLTIMING	SCIPpresolGetTiming (SCIP_PRESOL *presol)
void	SCIPpresolSetTiming (SCIP_PRESOL *presol, SCIP_PRESOLTIMING timing)
SCIP_Bool	SCIPpresolIsDelayed (SCIP_PRESOL *presol)
SCIP_Bool	SCIPpresolWasDelayed (SCIP_PRESOL *presol)
SCIP_Bool	SCIPpresolIsInitialized (SCIP_PRESOL *presol)
SCIP_Real	SCIPpresolGetSetupTime (SCIP_PRESOL *presol)
SCIP_Real	SCIPpresolGetTime (SCIP_PRESOL *presol)
int	SCIPpresolGetNFixedVars (SCIP_PRESOL *presol)
int	SCIPpresolGetNAggrVars (SCIP_PRESOL *presol)
int	SCIPpresolGetNChgVarTypes (SCIP_PRESOL *presol)
int	SCIPpresolGetNChgBds (SCIP_PRESOL *presol)
int	SCIPpresolGetNAddHoles (SCIP_PRESOL *presol)
int	SCIPpresolGetNDelConss (SCIP_PRESOL *presol)
int	SCIPpresolGetNAddConss (SCIP_PRESOL *presol)
int	SCIPpresolGetNUpgdConss (SCIP_PRESOL *presol)
int	SCIPpresolGetNChgCoefs (SCIP_PRESOL *presol)
int	SCIPpresolGetNChgSides (SCIP_PRESOL *presol)
int	SCIPpresolGetNCalls (SCIP_PRESOL *presol)

Function Documentation

SCIP_DECL_SORTPTRCOMP

(

SCIPpresolComp

)

compares two presolvers w. r. to their priority

Definition at line 47 of file presol.c.

SCIP_DECL_SORTPTRCOMP

(

SCIPpresolCompName

)

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

Definition at line 53 of file presol.c.

References SCIPpresolGetName().

SCIP_PRESOLDATA* SCIPpresolGetData

(

SCIP_PRESOL *

presol

)

gets user data of presolver

Parameters

presol

presolver

Definition at line 466 of file presol.c.

References NULL, and SCIP_Presol::presoldata.

Referenced by presolComponents(), SCIP_DECL_PRESOLCOPY(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXIT(), SCIP_DECL_PRESOLEXITPRE(), SCIP_DECL_PRESOLFREE(), SCIP_DECL_PRESOLINIT(), SCIP_DECL_PRESOLINITPRE(), SCIPfindObjPresol(), and SCIPgetObjPresol().

void SCIPpresolSetData	(	SCIP_PRESOL *	presol,
		SCIP_PRESOLDATA *	presoldata
	)

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

Parameters

presol	presolver
presoldata	new presolver user data

Definition at line 476 of file presol.c.

References NULL, and SCIP_Presol::presoldata.

Referenced by SCIP_DECL_PRESOLFREE().

const char* SCIPpresolGetName

(

SCIP_PRESOL *

presol

)

gets name of presolver

Parameters

presol

presolver

Definition at line 553 of file presol.c.

References SCIP_Presol::name, and NULL.

Referenced by paramsetSetPresolvingDefault(), paramsetSetPresolvingOff(), presolveRound(), printPresolverStatistics(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_PRESOLCOPY(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SORTPTRCOMP(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), SCIPpresolCopyInclude(), and SCIPsetSortConflicthdlrs().

const char* SCIPpresolGetDesc

(

SCIP_PRESOL *

presol

)

gets description of presolver

Parameters

presol

presolver

Definition at line 563 of file presol.c.

References SCIP_Presol::desc, and NULL.

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

int SCIPpresolGetPriority

(

SCIP_PRESOL *

presol

)

gets priority of presolver

Parameters

presol

presolver

Definition at line 573 of file presol.c.

References NULL, and SCIP_Presol::priority.

Referenced by presolveRound(), and SCIP_DECL_DIALOGEXEC().

int SCIPpresolGetMaxrounds

(

SCIP_PRESOL *

presol

)

gets round limit of presolver

Parameters

presol

presolver

Definition at line 583 of file presol.c.

References SCIP_Presol::maxrounds, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC().

SCIP_PRESOLTIMING SCIPpresolGetTiming

(

SCIP_PRESOL *

presol

)

gets the timing mask of the presolver

Parameters

presol

presolver

Definition at line 607 of file presol.c.

References NULL, and SCIP_Presol::timing.

Referenced by SCIP_DECL_DIALOGEXEC().

void SCIPpresolSetTiming	(	SCIP_PRESOL *	presol,
		SCIP_PRESOLTIMING	timing
	)

sets the timing mask of the presolver

Parameters

presol	presolver
timing	timing mask of the presolver

Definition at line 617 of file presol.c.

References NULL, and SCIP_Presol::timing.

SCIP_Bool SCIPpresolIsDelayed

(

SCIP_PRESOL *

presol

)

should presolver be delayed, if other presolvers found reductions?

Parameters

presol

presolver

SCIP_Bool SCIPpresolWasDelayed

(

SCIP_PRESOL *

presol

)

was presolver delayed at the last call?

Parameters

presol

presolver

SCIP_Bool SCIPpresolIsInitialized

(

SCIP_PRESOL *

presol

)

is presolver initialized?

Parameters

presol

presolver

Definition at line 629 of file presol.c.

References SCIP_Presol::initialized, and NULL.

SCIP_Real SCIPpresolGetSetupTime

(

SCIP_PRESOL *

presol

)

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

Parameters

presol

presolver

Definition at line 651 of file presol.c.

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

Referenced by printPresolverStatistics().

SCIP_Real SCIPpresolGetTime

(

SCIP_PRESOL *

presol

)

gets time in seconds used in this presolver

Parameters

presol

presolver

Definition at line 661 of file presol.c.

References NULL, SCIP_Presol::presolclock, and SCIPclockGetTime().

Referenced by printPresolverStatistics().

int SCIPpresolGetNFixedVars

(

SCIP_PRESOL *

presol

)

gets number of variables fixed in presolver

Parameters

presol

presolver

Definition at line 671 of file presol.c.

References SCIP_Presol::nfixedvars, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNAggrVars

(

SCIP_PRESOL *

presol

)

gets number of variables aggregated in presolver

Parameters

presol

presolver

Definition at line 681 of file presol.c.

References SCIP_Presol::naggrvars, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNChgVarTypes

(

SCIP_PRESOL *

presol

)

gets number of variable types changed in presolver

Parameters

presol

presolver

Definition at line 691 of file presol.c.

References SCIP_Presol::nchgvartypes, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNChgBds

(

SCIP_PRESOL *

presol

)

gets number of bounds changed in presolver

Parameters

presol

presolver

Definition at line 701 of file presol.c.

References SCIP_Presol::nchgbds, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNAddHoles

(

SCIP_PRESOL *

presol

)

gets number of holes added to domains of variables in presolver

Parameters

presol

presolver

Definition at line 711 of file presol.c.

References SCIP_Presol::naddholes, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNDelConss

(

SCIP_PRESOL *

presol

)

gets number of constraints deleted in presolver

Parameters

presol

presolver

Definition at line 721 of file presol.c.

References SCIP_Presol::ndelconss, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNAddConss

(

SCIP_PRESOL *

presol

)

gets number of constraints added in presolver

Parameters

presol

presolver

Definition at line 731 of file presol.c.

References SCIP_Presol::naddconss, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNUpgdConss

(

SCIP_PRESOL *

presol

)

gets number of constraints upgraded in presolver

Parameters

presol

presolver

Definition at line 741 of file presol.c.

References NULL, and SCIP_Presol::nupgdconss.

int SCIPpresolGetNChgCoefs

(

SCIP_PRESOL *

presol

)

gets number of coefficients changed in presolver

Parameters

presol

presolver

Definition at line 751 of file presol.c.

References SCIP_Presol::nchgcoefs, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNChgSides

(

SCIP_PRESOL *

presol

)

gets number of constraint sides changed in presolver

Parameters

presol

presolver

Definition at line 761 of file presol.c.

References SCIP_Presol::nchgsides, and NULL.

Referenced by printPresolverStatistics().

int SCIPpresolGetNCalls

(

SCIP_PRESOL *

presol

)

gets number of times the presolver was called and tried to find reductions

Parameters

presol

presolver

Definition at line 771 of file presol.c.

References SCIP_Presol::ncalls, and NULL.

Referenced by fillDigraph(), and printPresolverStatistics().