stat.h File Reference

Detailed Description

internal methods for problem statistics

Author

Tobias Achterberg

Definition in file stat.h.

#include "scip/def.h"
#include "blockmemshell/memory.h"
#include "scip/type_prob.h"
#include "scip/type_retcode.h"
#include "scip/type_set.h"
#include "scip/type_stat.h"
#include "scip/type_mem.h"
#include "scip/pub_message.h"
#include "scip/concurrent.h"
#include "scip/struct_stat.h"

Go to the source code of this file.

Macros
#define	SCIPupdateDeterministicTimeCount(stat, set, val)
#define	SCIPstatUpdate(stat, set, field, val)
#define	SCIPstatIncrement(stat, set, field)
#define	SCIPstatAdd(stat, set, field, val)
#define	SCIPstatDebugMsg   while ( FALSE ) SCIPstatDebugMessagePrint
#define	SCIPstatDebugMsgPrint   while ( FALSE ) SCIPstatDebugMessagePrint

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	SCIPstatResetPrimalDualIntegral (SCIP_STAT *stat, SCIP_SET *set, SCIP_Bool partialreset)
void	SCIPstatUpdatePrimalDualIntegral (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_Real primalbound, SCIP_Real dualbound)
SCIP_Real	SCIPstatGetPrimalDualIntegral (SCIP_STAT *stat, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob)
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)
SCIP_EXPORT void	SCIPstatPrintDebugMessage (SCIP_STAT *stat, const char *sourcefile, int sourceline, const char *formatstr,...)
SCIP_EXPORT void	SCIPstatDebugMessagePrint (SCIP_STAT *stat, const char *formatstr,...)

Macro Definition Documentation

SCIPupdateDeterministicTimeCount

#define SCIPupdateDeterministicTimeCount	(		stat,
			set,
			val
	)

Value:

do { \
        (stat)->detertimecnt += (val); \
        if( (stat)->detertimecnt > 10000.0 ) { \
           SCIP_CALL_ABORT( SCIPincrementConcurrentTime( (set)->scip, (stat)->detertimecnt ) ); \
           (stat)->detertimecnt = 0.0;                                  \
        }\
    } while(0) \

Definition at line 203 of file stat.h.

SCIPstatUpdate

#define SCIPstatUpdate	(		stat,
			set,
			field,
			val
	)

Value:

do { \
   switch( offsetof(SCIP_STAT, field) ) \
   { \
      default: \
         break; \
      case offsetof(SCIP_STAT, nprimalresolvelpiterations): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.00328285264101 * ((val) - (stat)->field) * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, ndualresolvelpiterations): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.00531625104146 * ((val) - (stat)->field) * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, nprobboundchgs): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.000738719124051 * ((val) - (stat)->field) * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, nisstoppedcalls): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.0011123144764 * ((val) - (stat)->field) * (stat)->nnz ); \
   } \
   (stat)->field = (val); \
   } while(0)

Definition at line 211 of file stat.h.

Referenced by lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), and lpPrimalSimplex().

SCIPstatIncrement

#define SCIPstatIncrement	(		stat,
			set,
			field
	)

Value:

do { \
   switch( offsetof(SCIP_STAT, field) ) \
   { \
      default: \
         break; \
      case offsetof(SCIP_STAT, nprimalresolvelpiterations): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.00328285264101 * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, ndualresolvelpiterations): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.00531625104146 * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, nprobboundchgs): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.000738719124051 * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, nisstoppedcalls): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.0011123144764 * (stat)->nnz ); \
   } \
   ++(stat)->field; \
   } while(0)

Definition at line 232 of file stat.h.

Referenced by lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), SCIPcolCreate(), SCIPcolGetStrongbranch(), SCIPcolSetStrongbranchData(), SCIPlpEndDive(), SCIPnodeAddBoundinfer(), SCIProwCreate(), SCIPsolveIsStopped(), SCIPvarAddHoleLocal(), varProcessChgLbLocal(), and varProcessChgUbLocal().

SCIPstatAdd

#define SCIPstatAdd	(		stat,
			set,
			field,
			val
	)

Value:

do { \
   switch( offsetof(SCIP_STAT, field) ) \
   { \
      default: \
         break; \
      case offsetof(SCIP_STAT, nprimalresolvelpiterations): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.00328285264101 * (val) * (stat)->nnz); \
         break; \
      case offsetof(SCIP_STAT, ndualresolvelpiterations): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.00531625104146 * (val) * (stat)->nnz); \
         break; \
      case offsetof(SCIP_STAT, nprobboundchgs): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.000738719124051 * (val) * (stat)->nnz ); \
         break; \
      case offsetof(SCIP_STAT, nisstoppedcalls): \
         SCIPupdateDeterministicTimeCount(stat, set, 0.0011123144764 * (val) * (stat)->nnz ); \
   } \
   (stat)->field += (val); \
   } while(0)

Definition at line 252 of file stat.h.

Referenced by lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), performStrongbranchWithPropagation(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), and SCIPcolSetStrongbranchData().

SCIPstatDebugMsg

#define SCIPstatDebugMsg   while ( FALSE ) SCIPstatDebugMessagePrint

prints a debugging message if SCIP_DEBUG flag is set

Definition at line 294 of file stat.h.

Referenced by SCIPsolLinkNLPSol(), SCIPstatComputeRootLPBestEstimate(), and SCIPstatUpdateVarRootLPBestEstimate().

SCIPstatDebugMsgPrint

#define SCIPstatDebugMsgPrint   while ( FALSE ) SCIPstatDebugMessagePrint

Definition at line 295 of file stat.h.

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 45 of file stat.c.

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

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 111 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 153 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 163 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 173 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 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 185 of file stat.c.

References SCIP_Stat::avgnnz, SCIP_Stat::barrierlptime, SCIP_Stat::barrierzeroittime, SCIP_Stat::bestefficacy, SCIP_Stat::branchedunbdvar, SCIP_Stat::conflictlptime, SCIP_Stat::copyclock, 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::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::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::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(), SCIPstatResetPrimalDualIntegral(), SCIP_Stat::solindex, SCIP_Stat::solvingtime, SCIP_Stat::strongbranchtime, SCIP_Stat::strongpropclock, SCIP_Stat::totaldivesetdepth, 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 338 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 348 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().

SCIPstatResetPrimalDualIntegral()

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

reset primal-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 376 of file stat.c.

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

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

SCIPstatUpdatePrimalDualIntegral()

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

update the primal-dual integral statistic. 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 402 of file stat.c.

References SCIP_Stat::lastdualbound, SCIP_Stat::lastlowerbound, SCIP_Stat::lastprimalbound, SCIP_Stat::lastupperbound, MAX, NULL, SCIP_Stat::previntegralevaltime, SCIP_Stat::previousgap, SCIP_Stat::primaldualintegral, REALABS, SCIP_Real, SCIP_UNKNOWN, SCIPclockGetTime(), SCIPprobExternObjval(), SCIPsetIsEQ(), SCIPsetIsGE(), SCIPsetIsInfinity(), SCIPsetIsLE(), SCIPsetIsZero(), and SCIP_Stat::solvingtime.

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

SCIPstatGetPrimalDualIntegral()

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

update and return the primal-dual integral statistic

Parameters

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

Definition at line 493 of file stat.c.

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

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 512 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 573 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 584 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 594 of file stat.c.

References FALSE, SCIP_Stat::memsavemode, SCIP_Stat::nnodes, NULL, SCIP_Longint, SCIP_LONGINT_FORMAT, 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 633 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 647 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 673 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 704 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()

SCIP_EXPORT 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 739 of file stat.c.

References NULL, and SCIP_Stat::subscipdepth.

SCIPstatDebugMessagePrint()

SCIP_EXPORT 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 763 of file stat.c.