stat.c File Reference

Detailed Description

methods for problem statistics

Author

Tobias Achterberg

Stefan Heinz

Gregor Hendel

Gerald Gamrath

Marc Pfetsch

Stefan Vigerske

Definition in file stat.c.

#include "scip/clock.h"
#include "scip/history.h"
#include "scip/mem.h"
#include "scip/prob.h"
#include "scip/pub_message.h"
#include "scip/pub_misc.h"
#include "scip/pub_var.h"
#include "scip/set.h"
#include "scip/stat.h"
#include "scip/struct_set.h"
#include "scip/struct_stat.h"
#include "scip/var.h"
#include "scip/visual.h"

Go to the source code of this file.

Functions
SCIP_RETCODE	SCIPstatCreate (SCIP_STAT **stat, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_MESSAGEHDLR *messagehdlr)
SCIP_RETCODE	SCIPstatFree (SCIP_STAT **stat, BMS_BLKMEM *blkmem)
void	SCIPstatDisableVarHistory (SCIP_STAT *stat)
void	SCIPstatEnableVarHistory (SCIP_STAT *stat)
void	SCIPstatMark (SCIP_STAT *stat)
void	SCIPstatReset (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob)
void	SCIPstatResetImplications (SCIP_STAT *stat)
void	SCIPstatResetPresolving (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob)
void	SCIPstatResetPrimalDualIntegrals (SCIP_STAT *stat, SCIP_SET *set, SCIP_Bool partialreset)
static SCIP_Real	getGap (SCIP_SET *set, SCIP_Real primalbound, SCIP_Real dualbound, SCIP_Real upperbound, SCIP_Real lowerbound)
void	SCIPstatUpdatePrimalDualIntegrals (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_Real upperbound, SCIP_Real lowerbound)
SCIP_Real	SCIPstatGetDualReferenceIntegral (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_Bool update)
SCIP_Real	SCIPstatGetPrimalReferenceIntegral (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_Bool update)
SCIP_Real	SCIPstatGetPrimalDualIntegral (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_Bool update)
void	SCIPstatResetCurrentRun (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_Bool solved)
void	SCIPstatResetDisplay (SCIP_STAT *stat)
void	SCIPstatEnforceLPUpdates (SCIP_STAT *stat)
void	SCIPstatUpdateMemsaveMode (SCIP_STAT *stat, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_MEM *mem)
SCIP_Longint	SCIPstatGetMemExternEstim (SCIP_STAT *stat)
void	SCIPstatEnableOrDisableStatClocks (SCIP_STAT *stat, SCIP_Bool enable)
void	SCIPstatComputeRootLPBestEstimate (SCIP_STAT *stat, SCIP_SET *set, SCIP_Real rootlpobjval, SCIP_VAR **vars, int nvars)
SCIP_RETCODE	SCIPstatUpdateVarRootLPBestEstimate (SCIP_STAT *stat, SCIP_SET *set, SCIP_VAR *var, SCIP_Real oldrootpscostscore)
void	SCIPstatPrintDebugMessage (SCIP_STAT *stat, const char *sourcefile, int sourceline, const char *formatstr,...)
void	SCIPstatDebugMessagePrint (SCIP_STAT *stat, const char *formatstr,...)

Function Documentation

SCIPstatCreate()

SCIP_RETCODE SCIPstatCreate	(	SCIP_STAT **	stat,
		BMS_BLKMEM *	blkmem,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob,
		SCIP_MESSAGEHDLR *	messagehdlr
	)

creates problem statistics data

Parameters

stat	pointer to problem statistics data
blkmem	block memory
set	global SCIP settings
transprob	transformed problem, or NULL
origprob	original problem, or NULL
messagehdlr	message handler

Definition at line 46 of file stat.c.

References BMSallocMemory, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_CLOCKTYPE_DEFAULT, SCIP_OKAY, SCIP_STATUS_UNKNOWN, SCIPclockCreate(), SCIPhistoryCreate(), SCIPregressionCreate(), SCIPstatEnableOrDisableStatClocks(), SCIPstatReset(), and SCIPvisualCreate().

Referenced by copyProb(), and SCIPcreateProb().

SCIPstatFree()

SCIP_RETCODE SCIPstatFree	(	SCIP_STAT **	stat,
		BMS_BLKMEM *	blkmem
	)

frees problem statistics data

Parameters

stat	pointer to problem statistics data
blkmem	block memory

Definition at line 105 of file stat.c.

References BMSfreeMemory, NULL, SCIP_OKAY, SCIPclockFree(), SCIPhistoryFree(), SCIPregressionFree(), and SCIPvisualFree().

Referenced by SCIPfreeProb().

SCIPstatDisableVarHistory()

void SCIPstatDisableVarHistory

(

SCIP_STAT *

stat

)

diables the collection of any statistic for a variable

Parameters

stat	problem statistics data

Definition at line 147 of file stat.c.

References SCIP_Stat::collectvarhistory, FALSE, and NULL.

Referenced by SCIPdisableVarHistory(), and SCIPstartProbing().

SCIPstatEnableVarHistory()

void SCIPstatEnableVarHistory

(

SCIP_STAT *

stat

)

enables the collection of statistics for a variable

Parameters

stat	problem statistics data

Definition at line 157 of file stat.c.

References SCIP_Stat::collectvarhistory, NULL, and TRUE.

Referenced by SCIPenableVarHistory(), and SCIPendProbing().

SCIPstatMark()

void SCIPstatMark

(

SCIP_STAT *

stat

)

marks statistics to be able to reset them when solving process is freed

Parameters

stat	problem statistics data

Definition at line 167 of file stat.c.

References SCIP_Stat::marked_ncolidx, SCIP_Stat::marked_nrowidx, SCIP_Stat::marked_nvaridx, SCIP_Stat::ncolidx, SCIP_Stat::nrowidx, NULL, and SCIP_Stat::nvaridx.

Referenced by freeReoptSolve(), prepareReoptimization(), and SCIPtransformProb().

SCIPstatReset()

void SCIPstatReset	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob
	)

reset statistics to the data before solving started

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem, or NULL
origprob	original problem, or NULL

Definition at line 179 of file stat.c.

References SCIP_Stat::avgnnz, SCIP_Stat::barrierlptime, SCIP_Stat::barrierzeroittime, SCIP_Stat::bestefficacy, SCIP_Stat::branchedunbdvar, SCIP_Stat::collectvarhistory, SCIP_Stat::conflictlptime, SCIP_Stat::copyclock, SCIP_Stat::disableenforelaxmsg, SCIP_Stat::divinglptime, SCIP_Stat::domchgcount, SCIP_Stat::duallptime, SCIP_Stat::dualzeroittime, SCIP_Stat::externmemestim, FALSE, SCIP_Stat::firstlpdualbound, SCIP_Stat::firstlptime, SCIP_Stat::firstprimalbound, SCIP_Stat::firstprimalheur, SCIP_Stat::firstprimaltime, SCIP_Stat::firstsolgap, SCIP_Stat::glbhistory, SCIP_Stat::inrestart, SCIP_Stat::lastsblpsolstats, SCIP_Stat::lastsolgap, SCIP_Stat::lexduallptime, SCIP_Stat::lpcount, SCIP_Stat::lpsoltime, SCIP_Stat::marked_ncolidx, SCIP_Stat::marked_nrowidx, SCIP_Stat::marked_nvaridx, SCIP_Stat::maxcopytime, SCIP_Stat::maxtotaldepth, SCIP_Stat::memsavemode, SCIP_Stat::mincopytime, SCIP_Stat::minefficacyfac, SCIP_Stat::nactiveconss, SCIP_Stat::nactiveconssadded, SCIP_Stat::nbarrierlpiterations, SCIP_Stat::nbarrierlps, SCIP_Stat::nbarrierzeroitlps, SCIP_Stat::nboundchgs, SCIP_Stat::nclockskipsleft, SCIP_Stat::ncolidx, SCIP_Stat::nconflictlpiterations, SCIP_Stat::nconflictlps, SCIP_Stat::nconfrestarts, SCIP_Stat::ncopies, SCIP_Stat::ncreatednodes, SCIP_Stat::ncutpoolfails, SCIP_Stat::ndivesetcalls, SCIP_Stat::ndivesetlpiterations, SCIP_Stat::ndivesetlps, SCIP_Stat::ndivinglpiterations, SCIP_Stat::ndivinglps, SCIP_Stat::nduallpiterations, SCIP_Stat::nduallps, SCIP_Stat::ndualresolvelpiterations, SCIP_Stat::ndualresolvelps, SCIP_Stat::ndualzeroitlps, SCIP_Stat::nenabledconss, SCIP_Stat::nexternalsolsfound, SCIP_Stat::nholechgs, SCIP_Stat::ninitconssadded, SCIP_Stat::ninitlpiterations, SCIP_Stat::ninitlps, SCIP_Stat::nisstoppedcalls, SCIP_Stat::nlexduallpiterations, SCIP_Stat::nlexduallps, SCIP_Stat::nlexdualresolvelpiterations, SCIP_Stat::nlexdualresolvelps, SCIP_Stat::nlpbestsolsfound, SCIP_Stat::nlpiterations, SCIP_Stat::nlps, SCIP_Stat::nlpsolsfound, SCIP_Stat::nlpsoltime, SCIP_Stat::nnlps, SCIP_Stat::nnodelpiterations, SCIP_Stat::nnodelps, SCIP_Stat::nnodesbeforefirst, SCIP_Stat::nnodezeroitlps, SCIP_Stat::nnumtroublelpmsgs, SCIP_Stat::nnz, SCIP_Stat::nodeactivationtime, SCIP_Stat::nprimallpiterations, SCIP_Stat::nprimallps, SCIP_Stat::nprimalresolvelpiterations, SCIP_Stat::nprimalresolvelps, SCIP_Stat::nprimalzeroitlps, SCIP_Stat::nprobboundchgs, SCIP_Stat::nprobholechgs, SCIP_Stat::npsbestsolsfound, SCIP_Stat::npssolsfound, SCIP_Stat::nrelaxbestsolsfound, SCIP_Stat::nrelaxsolsfound, SCIP_Stat::nresolveinstablelpiters, SCIP_Stat::nresolveinstablelps, SCIP_Stat::nrootboundchgs, SCIP_Stat::nrootfirstlpiterations, SCIP_Stat::nrootintfixings, SCIP_Stat::nrootlpiterations, SCIP_Stat::nrootlps, SCIP_Stat::nrootsblpiterations, SCIP_Stat::nrootstrongbranchs, SCIP_Stat::nrowidx, SCIP_Stat::nruns, SCIP_Stat::nrunsbeforefirst, SCIP_Stat::nsbbestsolsfound, SCIP_Stat::nsbdivinglpiterations, SCIP_Stat::nsbdivinglps, SCIP_Stat::nsbdowndomchgs, SCIP_Stat::nsblpiterations, SCIP_Stat::nsbsolsfound, SCIP_Stat::nsbtimesiterlimhit, SCIP_Stat::nsbupdomchgs, SCIP_Stat::nstrongbranchs, SCIP_Stat::ntotalinternalnodes, SCIP_Stat::ntotalnodes, SCIP_Stat::ntotalnodesmerged, NULL, SCIP_Stat::nvaridx, SCIP_Stat::performpresol, SCIP_Stat::presolvingtime, SCIP_Stat::prevrunnvars, SCIP_Stat::primallptime, SCIP_Stat::primalzeroittime, SCIP_Stat::pseudosoltime, SCIP_Stat::relaxcount, SCIP_Stat::relaxsoltime, SCIP_Stat::resolveinstablelptime, SCIP_Stat::sbsoltime, SCIP_DEFAULT_INFINITY, SCIP_LPSOLSTAT_NOTSOLVED, SCIP_REAL_MAX, SCIP_REAL_MIN, SCIP_UNKNOWN, SCIPclockReset(), SCIPhistoryReset(), SCIPstatResetImplications(), SCIPstatResetPresolving(), SCIPstatResetPrimalDualIntegrals(), SCIP_Stat::solindex, SCIP_Stat::solvingtime, SCIP_Stat::strongbranchtime, SCIP_Stat::strongpropclock, SCIP_Stat::totaldivesetdepth, TRUE, SCIP_Stat::userinterrupt, SCIP_Stat::userrestart, and SCIP_Stat::vsidsweight.

Referenced by freeReoptSolve(), freeTransform(), and SCIPstatCreate().

SCIPstatResetImplications()

void SCIPstatResetImplications

(

SCIP_STAT *

stat

)

reset implication counter

Parameters

stat	problem statistics data

Definition at line 340 of file stat.c.

References SCIP_Stat::nimplications, and NULL.

Referenced by SCIPstatReset().

SCIPstatResetPresolving()

void SCIPstatResetPresolving	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob
	)

reset presolving and current run specific statistics

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem, or NULL if not yet existing
origprob	original problem, or NULL

Definition at line 350 of file stat.c.

References FALSE, SCIP_Stat::npresoladdconss, SCIP_Stat::npresoladdholes, SCIP_Stat::npresolaggrvars, SCIP_Stat::npresolchgbds, SCIP_Stat::npresolchgcoefs, SCIP_Stat::npresolchgsides, SCIP_Stat::npresolchgvartypes, SCIP_Stat::npresoldelconss, SCIP_Stat::npresolfixedvars, SCIP_Stat::npresolrounds, SCIP_Stat::npresolroundsext, SCIP_Stat::npresolroundsfast, SCIP_Stat::npresolroundsmed, SCIP_Stat::npresolupgdconss, NULL, and SCIPstatResetCurrentRun().

Referenced by initPresolve(), and SCIPstatReset().

SCIPstatResetPrimalDualIntegrals()

void SCIPstatResetPrimalDualIntegrals	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_Bool	partialreset
	)

reset primal-dual, primal-reference, and reference-dual integral

Parameters

stat	problem statistics data
set	global SCIP settings
partialreset	should time and integral value be kept? (in combination with no statistical reset, integrals are added for each problem to be solved)

Definition at line 378 of file stat.c.

References SCIP_Stat::dualrefintegral, SCIP_Stat::lastdualbound, SCIP_Stat::lastlowerbound, SCIP_Stat::lastprimalbound, SCIP_Stat::lastupperbound, NULL, SCIP_Stat::previntegralevaltime, SCIP_Stat::previousdualrefgap, SCIP_Stat::previousgap, SCIP_Stat::previousprimalrefgap, SCIP_Stat::primaldualintegral, SCIP_Stat::primalrefintegral, SCIP_UNKNOWN, and SCIPsetInfinity().

Referenced by freeReoptSolve(), freeTransform(), and SCIPstatReset().

getGap()

static SCIP_Real getGap ( SCIP_SET *  set, SCIP_Real  primalbound, SCIP_Real  dualbound, SCIP_Real  upperbound, SCIP_Real  lowerbound  )

static

returns the gap bounded by 100

Parameters

set	global SCIP settings
primalbound	current primal bound
dualbound	current dual bound
upperbound	current upper bound in transformed problem, or infinity
lowerbound	current lower bound in transformed space, or -infinity

Definition at line 407 of file stat.c.

References MAX, REALABS, SCIP_Real, SCIP_UNKNOWN, SCIPsetIsEQ(), SCIPsetIsGE(), SCIPsetIsInfinity(), and SCIPsetIsLE().

Referenced by SCIPstatUpdatePrimalDualIntegrals().

SCIPstatUpdatePrimalDualIntegrals()

void SCIPstatUpdatePrimalDualIntegrals	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob,
		SCIP_Real	upperbound,
		SCIP_Real	lowerbound
	)

update the primal-dual, primal-reference, and reference-dual integral statistics. method accepts + and - SCIPsetInfinity() as values for upper and lower bound, respectively

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem
origprob	original problem
upperbound	current upper bound in transformed problem, or infinity
lowerbound	current lower bound in transformed space, or -infinity

Definition at line 446 of file stat.c.

References SCIP_Stat::dualrefintegral, getGap(), SCIP_Stat::lastdualbound, SCIP_Stat::lastlowerbound, SCIP_Stat::lastprimalbound, SCIP_Stat::lastupperbound, NULL, SCIP_Stat::previntegralevaltime, SCIP_Stat::previousdualrefgap, SCIP_Stat::previousgap, SCIP_Stat::previousprimalrefgap, SCIP_Stat::primaldualintegral, SCIP_Stat::primalrefintegral, REALABS, SCIP_Real, SCIPclockGetTime(), SCIPprobExternObjval(), SCIPsetIsGE(), SCIPsetIsInfinity(), SCIPsetIsZero(), and SCIP_Stat::solvingtime.

Referenced by exitPresolve(), SCIPnodeCutoff(), SCIPnodeUpdateLowerbound(), SCIPsolveCIP(), SCIPstatGetDualReferenceIntegral(), SCIPstatGetPrimalDualIntegral(), SCIPstatGetPrimalReferenceIntegral(), and SCIPstoreSolutionGap().

SCIPstatGetDualReferenceIntegral()

SCIP_Real SCIPstatGetDualReferenceIntegral	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob,
		SCIP_Bool	update
	)

optionally update and return the reference-dual integral statistic

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem
origprob	original problem
update	should the value be updated first?

Definition at line 539 of file stat.c.

References SCIP_Stat::dualrefintegral, NULL, SCIPsetInfinity(), and SCIPstatUpdatePrimalDualIntegrals().

Referenced by SCIPprintSolutionStatistics().

SCIPstatGetPrimalReferenceIntegral()

SCIP_Real SCIPstatGetPrimalReferenceIntegral	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob,
		SCIP_Bool	update
	)

optionally update and return the primal-reference integral statistic

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem
origprob	original problem
update	should the value be updated first?

Definition at line 560 of file stat.c.

References NULL, SCIP_Stat::primalrefintegral, SCIPsetInfinity(), and SCIPstatUpdatePrimalDualIntegrals().

Referenced by SCIPprintSolutionStatistics().

SCIPstatGetPrimalDualIntegral()

SCIP_Real SCIPstatGetPrimalDualIntegral	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob,
		SCIP_Bool	update
	)

optionally update and return the primal-dual integral statistic

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem
origprob	original problem
update	should the value be updated first?

Definition at line 581 of file stat.c.

References NULL, SCIP_Stat::primaldualintegral, SCIPsetInfinity(), and SCIPstatUpdatePrimalDualIntegrals().

Referenced by SCIPprintSolutionStatistics().

SCIPstatResetCurrentRun()

void SCIPstatResetCurrentRun	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_PROB *	transprob,
		SCIP_PROB *	origprob,
		SCIP_Bool	solved
	)

reset current branch and bound run specific statistics

Parameters

stat	problem statistics data
set	global SCIP settings
transprob	transformed problem, or NULL
origprob	original problem, or NULL
solved	is problem already solved?

Definition at line 602 of file stat.c.

References SCIP_Stat::bestsolnode, SCIP_Stat::branchedunbdvar, FALSE, SCIP_Stat::glbhistorycrun, SCIP_Stat::lastbranchdir, SCIP_Stat::lastbranchvalue, SCIP_Stat::lastbranchvar, SCIP_Stat::lastconflictnode, SCIP_Stat::lastdivenode, SCIP_Stat::maxdepth, SCIP_Stat::nactivatednodes, SCIP_Stat::nbacktracks, SCIP_Stat::ncreatednodesrun, SCIP_Stat::ndeactivatednodes, SCIP_Stat::ndelayedcutoffs, SCIP_Stat::nearlybacktracks, SCIP_Stat::nfeasleaves, SCIP_Stat::ninfeasleaves, SCIP_Stat::ninternalnodes, SCIP_Stat::nnodes, SCIP_Stat::nnodesaboverefbound, SCIP_Stat::nnumtroublelpmsgs, SCIP_Stat::nobjleaves, SCIP_Stat::npricerounds, SCIP_Stat::nrepropboundchgs, SCIP_Stat::nrepropcutoffs, SCIP_Stat::nreprops, SCIP_Stat::nrootboundchgsrun, SCIP_Stat::nrootintfixingsrun, SCIP_Stat::nseparounds, NULL, SCIP_Stat::plungedepth, SCIP_Stat::referencebound, SCIP_Stat::regressioncandsobjval, SCIP_Stat::rootlowerbound, SCIP_Stat::rootlpbestestimate, SCIP_BRANCHDIR_DOWNWARDS, SCIP_INVALID, SCIP_REAL_MIN, SCIP_STATUS_UNKNOWN, SCIP_UNKNOWN, SCIPhistoryReset(), SCIPprobInternObjval(), SCIPregressionReset(), SCIPsetGetReferencevalue(), SCIPsetInfinity(), SCIPsetIsInfinity(), SCIPstatResetDisplay(), and SCIP_Stat::status.

Referenced by freeReoptSolve(), freeSolve(), initSolve(), and SCIPstatResetPresolving().

SCIPstatResetDisplay()

void SCIPstatResetDisplay

(

SCIP_STAT *

stat

)

resets display statistics, such that a new header line is displayed before the next display line

Parameters

stat	problem statistics data

Definition at line 663 of file stat.c.

References SCIP_Stat::lastdispnode, SCIP_Stat::ndisplines, and NULL.

Referenced by SCIPsolve(), and SCIPstatResetCurrentRun().

SCIPstatEnforceLPUpdates()

void SCIPstatEnforceLPUpdates

(

SCIP_STAT *

stat

)

increases LP count, such that all lazy updates depending on the LP are enforced again

Parameters

stat	problem statistics data

Definition at line 674 of file stat.c.

References SCIP_Stat::lpcount, and NULL.

Referenced by initSolve().

SCIPstatUpdateMemsaveMode()

void SCIPstatUpdateMemsaveMode	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_MESSAGEHDLR *	messagehdlr,
		SCIP_MEM *	mem
	)

depending on the current memory usage, switches mode flag to standard or memory saving mode

Parameters

stat	problem statistics data
set	global SCIP settings
messagehdlr	message handler
mem	block memory pools

Definition at line 684 of file stat.c.

References FALSE, SCIP_Stat::memsavemode, SCIP_Stat::nnodes, NULL, SCIP_Longint, SCIP_Real, SCIP_VERBLEVEL_HIGH, SCIPmemGetTotal(), SCIPmessagePrintVerbInfo(), SCIPsetIsLT(), and TRUE.

Referenced by SCIPsolveCIP().

SCIPstatGetMemExternEstim()

SCIP_Longint SCIPstatGetMemExternEstim

(

SCIP_STAT *

stat

)

returns the estimated number of bytes used by extern software, e.g., the LP solver

Parameters

stat	dynamic SCIP statistics

Definition at line 723 of file stat.c.

References SCIP_Stat::externmemestim.

Referenced by SCIPgetMemExternEstim().

SCIPstatEnableOrDisableStatClocks()

void SCIPstatEnableOrDisableStatClocks	(	SCIP_STAT *	stat,
		SCIP_Bool	enable
	)

enables or disables all statistic clocks of stat concerning LP execution time, strong branching time, etc.

Note

: The (pre-)solving time clocks which are relevant for the output during (pre-)solving are not affected by this method

See also

: For completely disabling all timing of SCIP, consider setting the parameter timing/enabled to FALSE

Parameters

stat	SCIP statistics
enable	should the LP clocks be enabled?

Definition at line 737 of file stat.c.

References SCIP_Stat::barrierlptime, SCIP_Stat::conflictlptime, SCIP_Stat::copyclock, SCIP_Stat::divinglptime, SCIP_Stat::duallptime, SCIP_Stat::lexduallptime, SCIP_Stat::lpsoltime, SCIP_Stat::nlpsoltime, SCIP_Stat::nodeactivationtime, NULL, SCIP_Stat::primallptime, SCIP_Stat::pseudosoltime, SCIP_Stat::relaxsoltime, SCIP_Stat::resolveinstablelptime, SCIP_Stat::sbsoltime, SCIPclockEnableOrDisable(), SCIP_Stat::strongbranchtime, and SCIP_Stat::strongpropclock.

Referenced by SCIPenableOrDisableStatisticTiming(), and SCIPstatCreate().

SCIPstatComputeRootLPBestEstimate()

void SCIPstatComputeRootLPBestEstimate	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_Real	rootlpobjval,
		SCIP_VAR **	vars,
		int	nvars
	)

recompute root LP best-estimate from scratch

Parameters

stat	SCIP statistics
set	global SCIP settings
rootlpobjval	root LP objective value
vars	problem variables
nvars	number of variables

Definition at line 763 of file stat.c.

References SCIP_Stat::rootlpbestestimate, SCIP_Real, SCIPstatDebugMsg, SCIPvarGetMinPseudocostScore(), SCIPvarGetName(), SCIPvarGetRootSol(), and SCIPvarIsIntegral().

Referenced by SCIPprobStoreRootSol().

SCIPstatUpdateVarRootLPBestEstimate()

SCIP_RETCODE SCIPstatUpdateVarRootLPBestEstimate	(	SCIP_STAT *	stat,
		SCIP_SET *	set,
		SCIP_VAR *	var,
		SCIP_Real	oldrootpscostscore
	)

update root LP best-estimate with changed variable pseudo-costs

Parameters

stat	SCIP statistics
set	global SCIP settings
var	variable with changed pseudo costs
oldrootpscostscore	old minimum pseudo cost score of variable

Definition at line 794 of file stat.c.

References SCIP_Stat::rootlpbestestimate, SCIP_INVALID, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_COLUMN, SCIP_VARSTATUS_LOOSE, SCIPsetIsFeasIntegral(), SCIPstatDebugMsg, SCIPvarGetMinPseudocostScore(), SCIPvarGetName(), SCIPvarGetRootSol(), and SCIPvarGetStatus().

Referenced by SCIPvarUpdatePseudocost().

SCIPstatPrintDebugMessage()

void SCIPstatPrintDebugMessage	(	SCIP_STAT *	stat,
		const char *	sourcefile,
		int	sourceline,
		const char *	formatstr,
			...
	)

prints a debug message

Parameters

stat	SCIP statistics
sourcefile	name of the source file that called the function
sourceline	line in the source file where the function was called
formatstr	format string like in printf() function

Definition at line 829 of file stat.c.

References NULL, and SCIP_Stat::subscipdepth.

SCIPstatDebugMessagePrint()

void SCIPstatDebugMessagePrint	(	SCIP_STAT *	stat,
		const char *	formatstr,
			...
	)

prints a debug message without precode

Parameters

stat	SCIP statistics
formatstr	format string like in printf() function

Definition at line 853 of file stat.c.

References NULL.