sepastoreexact.c File Reference

Detailed Description

internal methods for storing separated exact cuts

Author

Leon Eifler

Definition in file sepastoreexact.c.

#include <assert.h>
#include "scip/def.h"
#include "scip/cons.h"
#include "scip/cuts.h"
#include "scip/debug.h"
#include "scip/event.h"
#include "scip/lp.h"
#include "scip/lpexact.h"
#include "scip/misc.h"
#include "scip/rational.h"
#include "scip/reopt.h"
#include "scip/sepa.h"
#include "scip/sepastoreexact.h"
#include "scip/set.h"
#include "scip/stat.h"
#include "scip/struct_lpexact.h"
#include "scip/struct_sepastore.h"
#include "scip/tree.h"
#include "scip/var.h"

Go to the source code of this file.

Functions
static SCIP_RETCODE	sepastoreExactEnsureCutsMem (SCIP_SEPASTOREEXACT *sepastoreexact, SCIP_SET *set, int num)
SCIP_RETCODE	SCIPsepastoreExactCreate (SCIP_SEPASTOREEXACT **sepastoreexact, SCIP_SET *set)
SCIP_RETCODE	SCIPsepastoreExactFree (SCIP_SEPASTOREEXACT **sepastoreexact)
SCIP_RETCODE	SCIPsepastoreExactAddCut (SCIP_SEPASTOREEXACT *sepastoreexact, SCIP_SET *set, SCIP_EVENTQUEUE *eventqueue, SCIP_ROWEXACT *cut)
SCIP_RETCODE	SCIPsepastoreExactClearCuts (SCIP_SEPASTOREEXACT *sepastoreexact, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_LPEXACT *lp)
SCIP_ROWEXACT **	SCIPsepastoreExactGetCuts (SCIP_SEPASTOREEXACT *sepastoreexact)
int	SCIPsepastoreExactGetNCuts (SCIP_SEPASTOREEXACT *sepastoreexact)
int	SCIPsepastoreExactGetNCutsFound (SCIP_SEPASTOREEXACT *sepastoreexact)
int	SCIPsepastoreExactGetNCutsFoundRound (SCIP_SEPASTOREEXACT *sepastoreexact)
int	SCIPsepastoreExactGetNCutsApplied (SCIP_SEPASTOREEXACT *sepastoreexact)

Function Documentation

sepastoreExactEnsureCutsMem()

static SCIP_RETCODE sepastoreExactEnsureCutsMem ( SCIP_SEPASTOREEXACT *  sepastoreexact, SCIP_SET *  set, int  num  )

static

resizes cuts and score arrays to be able to store at least num entries

Parameters

sepastoreexact	separation storage
set	global SCIP settings
num	minimal number of slots in array

Definition at line 56 of file sepastoreexact.c.

References BMSreallocMemoryArray, SCIP_SepaStoreExact::cuts, SCIP_SepaStoreExact::cutssize, NULL, SCIP_ALLOC, SCIP_OKAY, and SCIPsetCalcMemGrowSize().

Referenced by SCIPsepastoreExactAddCut().

SCIPsepastoreExactCreate()

SCIP_RETCODE SCIPsepastoreExactCreate	(	SCIP_SEPASTOREEXACT **	sepastoreexact,
		SCIP_SET *	set
	)

creates separation storage

Parameters

sepastoreexact	pointer to store separation storage
set	global SCIP settings

Definition at line 79 of file sepastoreexact.c.

References BMSallocMemory, FALSE, NULL, SCIP_ALLOC, and SCIP_OKAY.

Referenced by initSolve().

SCIPsepastoreExactFree()

SCIP_RETCODE SCIPsepastoreExactFree

(

SCIP_SEPASTOREEXACT **

sepastoreexact

)

frees separation storage

Parameters

sepastoreexact

pointer to store separation storage

Definition at line 104 of file sepastoreexact.c.

References BMSfreeMemory, BMSfreeMemoryArrayNull, NULL, and SCIP_OKAY.

Referenced by freeSolve().

SCIPsepastoreExactAddCut()

SCIP_RETCODE SCIPsepastoreExactAddCut	(	SCIP_SEPASTOREEXACT *	sepastoreexact,
		SCIP_SET *	set,
		SCIP_EVENTQUEUE *	eventqueue,
		SCIP_ROWEXACT *	cut
	)

adds cut to separation storage and captures it

Parameters

sepastoreexact	separation storage
set	global SCIP settings
eventqueue	event queue
cut	separated cut

Definition at line 145 of file sepastoreexact.c.

References SCIP_SepaStoreExact::cuts, SCIP_SepaStoreExact::cutssize, SCIP_RowExact::fprow, SCIP_SepaStoreExact::initiallp, SCIP_SepaStoreExact::ncuts, SCIP_SepaStoreExact::ncutsfound, SCIP_SepaStoreExact::ncutsfoundround, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugCheckRow, SCIPrationalIsInfinity(), SCIPrationalIsNegInfinity(), SCIProwExactCapture(), SCIProwExactGetLhs(), SCIProwExactGetRhs(), SCIProwGetName(), SCIProwGetNNonz(), SCIPsetDebugMsg, and sepastoreExactEnsureCutsMem().

Referenced by SCIPaddRowExact().

SCIPsepastoreExactClearCuts()

SCIP_RETCODE SCIPsepastoreExactClearCuts	(	SCIP_SEPASTOREEXACT *	sepastoreexact,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_LPEXACT *	lp
	)

clears the separation storage without adding the cuts to the LP

Parameters

sepastoreexact	separation storage
blkmem	block memory
set	global SCIP settings
lp	LP data

Definition at line 190 of file sepastoreexact.c.

References BMSfreeMemoryArrayNull, SCIP_SepaStoreExact::cuts, SCIP_SepaStoreExact::cutssize, SCIP_SepaStoreExact::initiallp, SCIP_SepaStoreExact::ncuts, SCIP_SepaStoreExact::ncutsfoundround, NULL, SCIP_CALL, SCIP_OKAY, SCIProwExactRelease(), and SCIPsetDebugMsg.

Referenced by freeSolve().

SCIPsepastoreExactGetCuts()

SCIP_ROWEXACT ** SCIPsepastoreExactGetCuts

(

SCIP_SEPASTOREEXACT *

sepastoreexact

)

get cuts in the separation storage

Parameters

sepastoreexact

separation storage

Definition at line 228 of file sepastoreexact.c.

References SCIP_SepaStoreExact::cuts, and NULL.

SCIPsepastoreExactGetNCuts()

int SCIPsepastoreExactGetNCuts

(

SCIP_SEPASTOREEXACT *

sepastoreexact

)

get number of cuts in the separation storage

Parameters

sepastoreexact

separation storage

Definition at line 238 of file sepastoreexact.c.

References SCIP_SepaStoreExact::ncuts, and NULL.

SCIPsepastoreExactGetNCutsFound()

int SCIPsepastoreExactGetNCutsFound

(

SCIP_SEPASTOREEXACT *

sepastoreexact

)

get total number of cuts found so far

Parameters

sepastoreexact

separation storage

Definition at line 248 of file sepastoreexact.c.

References SCIP_SepaStoreExact::ncutsfound, and NULL.

SCIPsepastoreExactGetNCutsFoundRound()

int SCIPsepastoreExactGetNCutsFoundRound

(

SCIP_SEPASTOREEXACT *

sepastoreexact

)

get number of cuts found so far in current separation round

Parameters

sepastoreexact

separation storage

Definition at line 258 of file sepastoreexact.c.

References SCIP_SepaStoreExact::ncutsfoundround, and NULL.

SCIPsepastoreExactGetNCutsApplied()

int SCIPsepastoreExactGetNCutsApplied

(

SCIP_SEPASTOREEXACT *

sepastoreexact

)

get total number of cuts applied to the LPs

Parameters

sepastoreexact

separation storage

Definition at line 268 of file sepastoreexact.c.

References SCIP_SepaStoreExact::ncutsapplied, and NULL.