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

SCIP_DECL_SORTPTRCOMP

(

SCIPpresolCompName

)

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

SCIP_PRESOLDATA* SCIPpresolGetData

(

SCIP_PRESOL *

presol

)

gets user data of presolver

Parameters

presol

presolver

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

const char* SCIPpresolGetName

(

SCIP_PRESOL *

presol

)

gets name of presolver

Parameters

presol

presolver

const char* SCIPpresolGetDesc

(

SCIP_PRESOL *

presol

)

gets description of presolver

Parameters

presol

presolver

int SCIPpresolGetPriority

(

SCIP_PRESOL *

presol

)

gets priority of presolver

Parameters

presol

presolver

int SCIPpresolGetMaxrounds

(

SCIP_PRESOL *

presol

)

gets round limit of presolver

Parameters

presol

presolver

SCIP_PRESOLTIMING SCIPpresolGetTiming

(

SCIP_PRESOL *

presol

)

gets the timing mask of the presolver

Parameters

presol

presolver

void SCIPpresolSetTiming	(	SCIP_PRESOL *	presol,
		SCIP_PRESOLTIMING	timing
	)

sets the timing mask of the presolver

Parameters

presol	presolver
timing	timing mask of the presolver

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

SCIP_Real SCIPpresolGetSetupTime

(

SCIP_PRESOL *

presol

)

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

Parameters

presol

presolver

SCIP_Real SCIPpresolGetTime

(

SCIP_PRESOL *

presol

)

gets time in seconds used in this presolver

Parameters

presol

presolver

int SCIPpresolGetNFixedVars

(

SCIP_PRESOL *

presol

)

gets number of variables fixed in presolver

Parameters

presol

presolver

int SCIPpresolGetNAggrVars

(

SCIP_PRESOL *

presol

)

gets number of variables aggregated in presolver

Parameters

presol

presolver

int SCIPpresolGetNChgVarTypes

(

SCIP_PRESOL *

presol

)

gets number of variable types changed in presolver

Parameters

presol

presolver

int SCIPpresolGetNChgBds

(

SCIP_PRESOL *

presol

)

gets number of bounds changed in presolver

Parameters

presol

presolver

int SCIPpresolGetNAddHoles

(

SCIP_PRESOL *

presol

)

gets number of holes added to domains of variables in presolver

Parameters

presol

presolver

int SCIPpresolGetNDelConss

(

SCIP_PRESOL *

presol

)

gets number of constraints deleted in presolver

Parameters

presol

presolver

int SCIPpresolGetNAddConss

(

SCIP_PRESOL *

presol

)

gets number of constraints added in presolver

Parameters

presol

presolver

int SCIPpresolGetNUpgdConss

(

SCIP_PRESOL *

presol

)

gets number of constraints upgraded in presolver

Parameters

presol

presolver

int SCIPpresolGetNChgCoefs

(

SCIP_PRESOL *

presol

)

gets number of coefficients changed in presolver

Parameters

presol

presolver

int SCIPpresolGetNChgSides

(

SCIP_PRESOL *

presol

)

gets number of constraint sides changed in presolver

Parameters

presol

presolver

int SCIPpresolGetNCalls

(

SCIP_PRESOL *

presol

)

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

Parameters

presol

presolver