Scippy

SCIP

Solving Constraint Integer Programs

Functions
clock.h File Reference
Internal API of SCIP

Detailed Description

internal methods for clocks and timing issues

Author
Tobias Achterberg

Definition in file clock.h.

#include "scip/def.h"
#include "scip/type_retcode.h"
#include "scip/type_set.h"
#include "scip/type_clock.h"

Go to the source code of this file.

Functions

SCIP_RETCODE SCIPclockCreate (SCIP_CLOCK **clck, SCIP_CLOCKTYPE clocktype)
 
void SCIPclockFree (SCIP_CLOCK **clck)
 
void SCIPclockInit (SCIP_CLOCK *clck, SCIP_CLOCKTYPE clocktype)
 
void SCIPclockReset (SCIP_CLOCK *clck)
 
void SCIPclockEnable (SCIP_CLOCK *clck)
 
void SCIPclockDisable (SCIP_CLOCK *clck)
 
void SCIPclockEnableOrDisable (SCIP_CLOCK *clck, SCIP_Bool enable)
 
void SCIPclockSetType (SCIP_CLOCK *clck, SCIP_CLOCKTYPE clocktype)
 
void SCIPclockStart (SCIP_CLOCK *clck, SCIP_SET *set)
 
void SCIPclockStop (SCIP_CLOCK *clck, SCIP_SET *set)
 
SCIP_Bool SCIPclockIsRunning (SCIP_CLOCK *clck)
 
SCIP_Real SCIPclockGetTime (SCIP_CLOCK *clck)
 
SCIP_Real SCIPclockGetLastTime (SCIP_CLOCK *clck)
 
void SCIPclockSetTime (SCIP_CLOCK *clck, SCIP_Real sec)
 
SCIP_Real SCIPclockGetTimeOfDay (void)
 

Function Documentation

◆ SCIPclockCreate()

SCIP_RETCODE SCIPclockCreate ( SCIP_CLOCK **  clck,
SCIP_CLOCKTYPE  clocktype 
)

creates a clock and initializes it

Parameters
clckpointer to clock timer
clocktypetype of clock

Definition at line 170 of file clock.c.

References BMSallocMemory, NULL, SCIP_ALLOC, SCIP_OKAY, and SCIPclockInit().

Referenced by doBendersCreate(), doBenderscutCreate(), doBranchruleCreate(), doComprCreate(), doConflicthdlrCreate(), doConshdlrCreate(), doCutselCreate(), doEventhdlrCreate(), doHeurCreate(), doNodeselCreate(), doPresolCreate(), doPricerCreate(), doPropCreate(), doReaderCreate(), doRelaxCreate(), doScipCreate(), doSepaCreate(), SCIPconflictCreate(), SCIPcreateClock(), SCIPcreateCPUClock(), SCIPcreateWallClock(), SCIPcutpoolCreate(), SCIPexprhdlrCreate(), SCIPnlpiCreate(), SCIPpricestoreCreate(), SCIPreaderRead(), SCIPreoptCreate(), and SCIPstatCreate().

◆ SCIPclockFree()

void SCIPclockFree ( SCIP_CLOCK **  clck)

frees a clock

Parameters
clckpointer to clock timer

Definition at line 185 of file clock.c.

References BMSfreeMemory, and NULL.

Referenced by SCIPbenderscutFree(), SCIPbendersFree(), SCIPbranchruleFree(), SCIPcomprFree(), SCIPconflictFree(), SCIPconflicthdlrFree(), SCIPconshdlrFree(), SCIPcutpoolFree(), SCIPcutselFree(), SCIPeventhdlrFree(), SCIPexprhdlrFree(), SCIPfree(), SCIPfreeClock(), SCIPheurFree(), SCIPnlpiFree(), SCIPnodeselFree(), SCIPpresolFree(), SCIPpricerFree(), SCIPpricestoreFree(), SCIPpropFree(), SCIPreaderFree(), SCIPreaderRead(), SCIPrelaxFree(), SCIPreoptFree(), SCIPsepaFree(), and SCIPstatFree().

◆ SCIPclockInit()

void SCIPclockInit ( SCIP_CLOCK *  clck,
SCIP_CLOCKTYPE  clocktype 
)

initializes and resets a clock

Parameters
clckclock timer
clocktypetype of clock

Definition at line 195 of file clock.c.

References NULL, SCIPclockSetType(), SCIPdebugMessage, and TRUE.

Referenced by SCIPclockCreate().

◆ SCIPclockReset()

void SCIPclockReset ( SCIP_CLOCK *  clck)

completely stop the clock and reset the clock's counter to zero

Parameters
clckclock timer

Definition at line 209 of file clock.c.

References SCIP_Clock::clocktype, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, and SCIPerrorMessage.

Referenced by clockSetType(), SCIPbenderscutInit(), SCIPbendersInit(), SCIPbranchruleInit(), SCIPclockDisable(), SCIPclockSetType(), SCIPcomprInit(), SCIPconflicthdlrInit(), SCIPconshdlrInit(), SCIPcutselInit(), SCIPeventhdlrInit(), SCIPexprhdlrInit(), SCIPheurInit(), SCIPnlpiInit(), SCIPnlpiMergeStatistics(), SCIPnodeselInit(), SCIPpresolInit(), SCIPpricerInit(), SCIPpropInit(), SCIPreaderResetReadingTime(), SCIPrelaxInit(), SCIPresetClock(), SCIPsepaInit(), and SCIPstatReset().

◆ SCIPclockEnable()

void SCIPclockEnable ( SCIP_CLOCK *  clck)

enables the clock

Parameters
clckclock timer

Definition at line 235 of file clock.c.

References SCIP_Clock::clocktype, NULL, SCIPdebugMessage, and TRUE.

Referenced by SCIPclockEnableOrDisable().

◆ SCIPclockDisable()

void SCIPclockDisable ( SCIP_CLOCK *  clck)

disables and resets the clock

Parameters
clckclock timer

Definition at line 247 of file clock.c.

References SCIP_Clock::clocktype, FALSE, NULL, SCIPclockReset(), and SCIPdebugMessage.

Referenced by SCIPclockEnableOrDisable().

◆ SCIPclockEnableOrDisable()

void SCIPclockEnableOrDisable ( SCIP_CLOCK *  clck,
SCIP_Bool  enable 
)

enables or disables clck, depending on the value of the flag

Parameters
clckthe clock to be disabled/enabled
enableshould the clock be enabled?

Definition at line 260 of file clock.c.

References NULL, SCIPclockDisable(), and SCIPclockEnable().

Referenced by SCIPbendersEnableOrDisableClocks(), SCIPbranchruleEnableOrDisableClocks(), SCIPconflictEnableOrDisableClocks(), SCIPconflicthdlrEnableOrDisableClocks(), SCIPconshdlrEnableOrDisableClocks(), SCIPcutselEnableOrDisableClocks(), SCIPeventhdlrEnableOrDisableClocks(), SCIPheurEnableOrDisableClocks(), SCIPnodeselEnableOrDisableClocks(), SCIPpresolEnableOrDisableClocks(), SCIPpricerEnableOrDisableClocks(), SCIPpropEnableOrDisableClocks(), SCIPreaderEnableOrDisableClocks(), SCIPrelaxEnableOrDisableClocks(), SCIPsepaEnableOrDisableClocks(), SCIPsetClockEnabled(), and SCIPstatEnableOrDisableStatClocks().

◆ SCIPclockSetType()

void SCIPclockSetType ( SCIP_CLOCK *  clck,
SCIP_CLOCKTYPE  clocktype 
)

sets the type of the clock, overriding the default clock type, and resets the clock

Parameters
clckclock timer
clocktypetype of clock

Definition at line 274 of file clock.c.

References SCIP_Clock::clocktype, NULL, SCIP_CLOCKTYPE_DEFAULT, SCIPclockReset(), and SCIPdebugMessage.

Referenced by SCIPclockInit().

◆ SCIPclockStart()

void SCIPclockStart ( SCIP_CLOCK *  clck,
SCIP_SET *  set 
)

starts measurement of time in the given clock, update the clock's type if it is bound to the default type

starts measurement of time in the given clock

Parameters
clckclock timer
setglobal SCIP settings

Definition at line 290 of file clock.c.

References SCIP_Clock::clocktype, clockUpdateDefaultType(), cputime2sec(), SCIP_Clock::enabled, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, and walltime2sec().

Referenced by addCurrentSolution(), addNode(), conflictAddConflictCons(), conflictAnalyzeBoundexceedingLP(), conflictAnalyzeInfeasibleLP(), conflictAnalyzeLP(), doCopy(), doScipCreate(), lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), nlpSolve(), nodeRepropagate(), performStrongbranchWithPropagation(), presolve(), runBoundHeuristic(), SCIPbenderscutExec(), SCIPbenderscutExit(), SCIPbenderscutExitsol(), SCIPbenderscutInit(), SCIPbenderscutInitsol(), SCIPbendersExec(), SCIPbendersExit(), SCIPbendersExitpre(), SCIPbendersExitsol(), SCIPbendersInit(), SCIPbendersInitpre(), SCIPbendersInitsol(), SCIPbranchruleExecExternSol(), SCIPbranchruleExecLPSol(), SCIPbranchruleExecPseudoSol(), SCIPbranchruleExit(), SCIPbranchruleExitsol(), SCIPbranchruleInit(), SCIPbranchruleInitsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcomprExec(), SCIPcomprExit(), SCIPcomprInit(), SCIPconflictAnalyze(), SCIPconflictAnalyzePseudo(), SCIPconflictAnalyzeStrongbranch(), SCIPconflicthdlrExec(), SCIPconflicthdlrExit(), SCIPconflicthdlrExitsol(), SCIPconflicthdlrInit(), SCIPconflicthdlrInitsol(), SCIPconshdlrCheck(), SCIPconshdlrEnforceLPSol(), SCIPconshdlrEnforcePseudoSol(), SCIPconshdlrEnforceRelaxSol(), SCIPconshdlrExit(), SCIPconshdlrExitpre(), SCIPconshdlrExitsol(), SCIPconshdlrInit(), SCIPconshdlrInitLP(), SCIPconshdlrInitpre(), SCIPconshdlrInitsol(), SCIPconshdlrPresolve(), SCIPconshdlrPropagate(), SCIPconshdlrSeparateLP(), SCIPconshdlrSeparateSol(), SCIPconsResolvePropagation(), SCIPcutpoolSeparate(), SCIPcutselExit(), SCIPcutselExitsol(), SCIPcutselInit(), SCIPcutselInitsol(), SCIPcutselsSelect(), SCIPeventhdlrExec(), SCIPeventhdlrExit(), SCIPeventhdlrExitsol(), SCIPeventhdlrInit(), SCIPeventhdlrInitsol(), SCIPexprhdlrEstimateExpr(), SCIPexprhdlrInitEstimatesExpr(), SCIPexprhdlrIntEvalExpr(), SCIPexprhdlrReversePropExpr(), SCIPexprhdlrSimplifyExpr(), SCIPheurExec(), SCIPheurExit(), SCIPheurExitsol(), SCIPheurInit(), SCIPheurInitsol(), SCIPnlpiAddConstraints(), SCIPnlpiAddVars(), SCIPnlpiChgConsSides(), SCIPnlpiChgExpr(), SCIPnlpiChgLinearCoefs(), SCIPnlpiChgObjConstant(), SCIPnlpiChgVarBounds(), SCIPnlpiCreateProblem(), SCIPnlpiDelConsSet(), SCIPnlpiDelVarSet(), SCIPnlpiFreeProblem(), SCIPnlpiSetObjective(), SCIPnodeselExit(), SCIPnodeselExitsol(), SCIPnodeselInit(), SCIPnodeselInitsol(), SCIPnodeselSelect(), SCIPpresolExec(), SCIPpresolExit(), SCIPpresolExitpre(), SCIPpresolInit(), SCIPpresolInitpre(), SCIPpresolve(), SCIPpricerExit(), SCIPpricerExitsol(), SCIPpricerFarkas(), SCIPpricerInit(), SCIPpricerInitsol(), SCIPpricerRedcost(), SCIPpricestoreAddProbVars(), SCIPpropExec(), SCIPpropExit(), SCIPpropExitpre(), SCIPpropExitsol(), SCIPpropInit(), SCIPpropInitpre(), SCIPpropInitsol(), SCIPpropPresol(), SCIPpropResolvePropagation(), SCIPreaderRead(), SCIPrelaxExec(), SCIPrelaxExit(), SCIPrelaxExitsol(), SCIPrelaxInit(), SCIPrelaxInitsol(), SCIPsepaExecLP(), SCIPsepaExecSol(), SCIPsepaExit(), SCIPsepaExitsol(), SCIPsepaInit(), SCIPsepaInitsol(), SCIPsolve(), SCIPsolveCIP(), SCIPsolveConcurrent(), SCIPstartClock(), SCIPstartSolvingTime(), and SCIPtryStrongbranchLPSol().

◆ SCIPclockStop()

void SCIPclockStop ( SCIP_CLOCK *  clck,
SCIP_SET *  set 
)

stops measurement of time in the given clock

Parameters
clckclock timer
setglobal SCIP settings

Definition at line 360 of file clock.c.

References SCIP_Clock::clocktype, SCIP_Clock::enabled, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, and SCIPerrorMessage.

Referenced by addCurrentSolution(), addNode(), conflictAddConflictCons(), conflictAnalyzeBoundexceedingLP(), conflictAnalyzeInfeasibleLP(), conflictAnalyzeLP(), doCopy(), lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), nlpSolve(), nodeRepropagate(), performStrongbranchWithPropagation(), presolve(), runBoundHeuristic(), SCIPbenderscutExec(), SCIPbenderscutExit(), SCIPbenderscutExitsol(), SCIPbenderscutInit(), SCIPbenderscutInitsol(), SCIPbendersExec(), SCIPbendersExit(), SCIPbendersExitpre(), SCIPbendersExitsol(), SCIPbendersInit(), SCIPbendersInitpre(), SCIPbendersInitsol(), SCIPbranchruleExecExternSol(), SCIPbranchruleExecLPSol(), SCIPbranchruleExecPseudoSol(), SCIPbranchruleExit(), SCIPbranchruleExitsol(), SCIPbranchruleInit(), SCIPbranchruleInitsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPcomprExec(), SCIPcomprExit(), SCIPcomprInit(), SCIPconflictAnalyze(), SCIPconflictAnalyzePseudo(), SCIPconflictAnalyzeStrongbranch(), SCIPconflicthdlrExec(), SCIPconflicthdlrExit(), SCIPconflicthdlrExitsol(), SCIPconflicthdlrInit(), SCIPconflicthdlrInitsol(), SCIPconshdlrCheck(), SCIPconshdlrEnforceLPSol(), SCIPconshdlrEnforcePseudoSol(), SCIPconshdlrEnforceRelaxSol(), SCIPconshdlrExit(), SCIPconshdlrExitpre(), SCIPconshdlrExitsol(), SCIPconshdlrInit(), SCIPconshdlrInitLP(), SCIPconshdlrInitpre(), SCIPconshdlrInitsol(), SCIPconshdlrPresolve(), SCIPconshdlrPropagate(), SCIPconshdlrSeparateLP(), SCIPconshdlrSeparateSol(), SCIPconsResolvePropagation(), SCIPcutpoolSeparate(), SCIPcutselExit(), SCIPcutselExitsol(), SCIPcutselInit(), SCIPcutselInitsol(), SCIPcutselsSelect(), SCIPeventhdlrExec(), SCIPeventhdlrExit(), SCIPeventhdlrExitsol(), SCIPeventhdlrInit(), SCIPeventhdlrInitsol(), SCIPexprhdlrEstimateExpr(), SCIPexprhdlrInitEstimatesExpr(), SCIPexprhdlrIntEvalExpr(), SCIPexprhdlrReversePropExpr(), SCIPexprhdlrSimplifyExpr(), SCIPheurExec(), SCIPheurExit(), SCIPheurExitsol(), SCIPheurInit(), SCIPheurInitsol(), SCIPnlpiAddConstraints(), SCIPnlpiAddVars(), SCIPnlpiChgConsSides(), SCIPnlpiChgExpr(), SCIPnlpiChgLinearCoefs(), SCIPnlpiChgObjConstant(), SCIPnlpiChgVarBounds(), SCIPnlpiCreateProblem(), SCIPnlpiDelConsSet(), SCIPnlpiDelVarSet(), SCIPnlpiFreeProblem(), SCIPnlpiSetObjective(), SCIPnodeselExit(), SCIPnodeselExitsol(), SCIPnodeselInit(), SCIPnodeselInitsol(), SCIPnodeselSelect(), SCIPpresolExec(), SCIPpresolExit(), SCIPpresolExitpre(), SCIPpresolInit(), SCIPpresolInitpre(), SCIPpresolve(), SCIPpricerExit(), SCIPpricerExitsol(), SCIPpricerFarkas(), SCIPpricerInit(), SCIPpricerInitsol(), SCIPpricerRedcost(), SCIPpricestoreAddProbVars(), SCIPpropExec(), SCIPpropExit(), SCIPpropExitpre(), SCIPpropExitsol(), SCIPpropInit(), SCIPpropInitpre(), SCIPpropInitsol(), SCIPpropPresol(), SCIPpropResolvePropagation(), SCIPreaderRead(), SCIPrelaxExec(), SCIPrelaxExit(), SCIPrelaxExitsol(), SCIPrelaxInit(), SCIPrelaxInitsol(), SCIPsepaExecLP(), SCIPsepaExecSol(), SCIPsepaExit(), SCIPsepaExitsol(), SCIPsepaInit(), SCIPsepaInitsol(), SCIPsolve(), SCIPsolveCIP(), SCIPsolveConcurrent(), SCIPstopClock(), SCIPstopSolvingTime(), and SCIPtryStrongbranchLPSol().

◆ SCIPclockIsRunning()

SCIP_Bool SCIPclockIsRunning ( SCIP_CLOCK *  clck)

returns whether the clock is currently running

Parameters
clckclock timer

Definition at line 427 of file clock.c.

References SCIP_Clock::nruns, and NULL.

Referenced by nodeRepropagate(), and SCIPreaderRead().

◆ SCIPclockGetTime()

SCIP_Real SCIPclockGetTime ( SCIP_CLOCK *  clck)

gets the used time of this clock in seconds

Parameters
clckclock timer

Definition at line 438 of file clock.c.

References SCIP_Clock::clocktype, cputime2sec(), EPSN, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIP_Real, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, and walltime2sec().

Referenced by applyVbounds(), clockSetType(), displayRelevantStats(), doCopy(), lpAlgorithm(), lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), printTime(), SCIPbenderscutGetSetupTime(), SCIPbenderscutGetTime(), SCIPbendersGetSetupTime(), SCIPbendersGetTime(), SCIPbranchruleGetSetupTime(), SCIPbranchruleGetTime(), SCIPcomprGetSetupTime(), SCIPcomprGetTime(), SCIPconcsolverGetSyncTime(), SCIPconflictGetBoundexceedingLPTime(), SCIPconflictGetGlobalApplTime(), SCIPconflictGetInfeasibleLPTime(), SCIPconflictGetPropTime(), SCIPconflictGetPseudoTime(), SCIPconflictGetStrongbranchTime(), SCIPconflicthdlrGetSetupTime(), SCIPconflicthdlrGetTime(), SCIPconshdlrGetCheckTime(), SCIPconshdlrGetEnfoLPTime(), SCIPconshdlrGetEnfoPSTime(), SCIPconshdlrGetEnfoRelaxTime(), SCIPconshdlrGetPresolTime(), SCIPconshdlrGetPropTime(), SCIPconshdlrGetRespropTime(), SCIPconshdlrGetSepaTime(), SCIPconshdlrGetSetupTime(), SCIPconshdlrGetStrongBranchPropTime(), SCIPcutpoolGetTime(), SCIPcutselGetSetupTime(), SCIPcutselGetTime(), SCIPeventhdlrGetSetupTime(), SCIPeventhdlrGetTime(), SCIPexprhdlrGetEstimateTime(), SCIPexprhdlrGetIntevalTime(), SCIPexprhdlrGetReversepropTime(), SCIPexprhdlrGetSimplifyTime(), SCIPgetClockTime(), SCIPgetPresolvingTime(), SCIPgetSolvingTime(), SCIPgetTotalTime(), SCIPheurGetSetupTime(), SCIPheurGetTime(), SCIPnlpiGetProblemTime(), SCIPnlpiMergeStatistics(), SCIPnlpiSolve(), SCIPnodeselGetSetupTime(), SCIPnodeselGetTime(), SCIPpresolGetSetupTime(), SCIPpresolGetTime(), SCIPpresolve(), SCIPpricerGetSetupTime(), SCIPpricerGetTime(), SCIPpricestoreGetProbPricingTime(), SCIPprintHeuristicStatistics(), SCIPprintLPStatistics(), SCIPprintNLPStatistics(), SCIPprintReoptStatistics(), SCIPprintTimingStatistics(), SCIPprintTreeStatistics(), SCIPpropGetPresolTime(), SCIPpropGetRespropTime(), SCIPpropGetSetupTime(), SCIPpropGetStrongBranchPropTime(), SCIPpropGetTime(), SCIPreaderGetReadingTime(), SCIPreaderRead(), SCIPrelaxExec(), SCIPrelaxGetSetupTime(), SCIPrelaxGetTime(), SCIPreoptGetSavingtime(), SCIPsepaGetSetupTime(), SCIPsepaGetTime(), SCIPsolveIsStopped(), SCIPstatUpdatePrimalDualIntegrals(), solStamp(), and solveNodeInitialLP().

◆ SCIPclockGetLastTime()

SCIP_Real SCIPclockGetLastTime ( SCIP_CLOCK *  clck)

gets the last validated time of this clock in seconds

Parameters
clckclock timer

Definition at line 529 of file clock.c.

References SCIP_Clock::lasttime, and NULL.

Referenced by SCIPsolveIsStopped(), and solStamp().

◆ SCIPclockSetTime()

void SCIPclockSetTime ( SCIP_CLOCK *  clck,
SCIP_Real  sec 
)

sets the used time of this clock in seconds

Parameters
clckclock timer
sectime in seconds to set the clock's timer to

Definition at line 539 of file clock.c.

References clockSetType(), SCIP_Clock::clocktype, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, sec2cputime(), and sec2walltime().

Referenced by clockSetType(), SCIPcutpoolSetTime(), SCIPnlpiMergeStatistics(), SCIPreaderRead(), SCIPreadProb(), and SCIPsetClockTime().

◆ SCIPclockGetTimeOfDay()

SCIP_Real SCIPclockGetTimeOfDay ( void  )

gets current time of day in seconds (standard time zone)

Definition at line 621 of file clock.c.

References NULL, and SCIP_Real.

Referenced by SCIPgetTimeOfDay().