clock.h File Reference

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	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

SCIP_RETCODE SCIPclockCreate	(	SCIP_CLOCK **	clck,
		SCIP_CLOCKTYPE	clocktype
	)

creates a clock and initializes it

Parameters

clck	pointer to clock timer
clocktype	type of clock

Definition at line 160 of file clock.c.

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

Referenced by SCIPbranchruleCreate(), SCIPconflictCreate(), SCIPconflicthdlrCreate(), SCIPconshdlrCreate(), SCIPcreate(), SCIPcreateClock(), SCIPcreateCPUClock(), SCIPcreateWallClock(), SCIPcutpoolCreate(), SCIPeventhdlrCreate(), SCIPheurCreate(), SCIPnodeselCreate(), SCIPpresolCreate(), SCIPpricerCreate(), SCIPpricestoreCreate(), SCIPpropCreate(), SCIPreaderCreate(), SCIPreaderRead(), SCIPrelaxCreate(), SCIPsepaCreate(), and SCIPstatCreate().

void SCIPclockFree

(

SCIP_CLOCK **

clck

)

frees a clock

Parameters

clck	pointer to clock timer

Definition at line 175 of file clock.c.

References BMSfreeMemory, and NULL.

Referenced by SCIPbranchruleFree(), SCIPconflictFree(), SCIPconflicthdlrFree(), SCIPconshdlrFree(), SCIPcutpoolFree(), SCIPeventhdlrFree(), SCIPfree(), SCIPfreeClock(), SCIPheurFree(), SCIPnodeselFree(), SCIPpresolFree(), SCIPpricerFree(), SCIPpricestoreFree(), SCIPpropFree(), SCIPreaderFree(), SCIPreaderRead(), SCIPrelaxFree(), SCIPsepaFree(), and SCIPstatFree().

void SCIPclockInit	(	SCIP_CLOCK *	clck,
		SCIP_CLOCKTYPE	clocktype
	)

initializes and resets a clock

Parameters

clck	clock timer
clocktype	type of clock

Definition at line 185 of file clock.c.

References SCIP_Clock::enabled, SCIP_Clock::lasttime, NULL, SCIPclockSetType(), SCIPdebugMessage, and TRUE.

Referenced by SCIPclockCreate().

void SCIPclockReset

(

SCIP_CLOCK *

clck

)

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

Parameters

clck	clock timer

Definition at line 199 of file clock.c.

References SCIP_Clock::clocktype, SCIP_Clock::cpuclock, SCIP_Clock::data, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, SCIP_WallClock::sec, SCIP_WallClock::usec, SCIP_Clock::usedefault, SCIP_CPUClock::user, and SCIP_Clock::wallclock.

Referenced by clockSetType(), SCIPbranchruleInit(), SCIPclockDisable(), SCIPclockSetType(), SCIPconflicthdlrInit(), SCIPconshdlrInit(), SCIPeventhdlrInit(), SCIPheurInit(), SCIPnodeselInit(), SCIPpresolInit(), SCIPpricerInit(), SCIPpropInit(), SCIPreaderResetReadingTime(), SCIPrelaxInit(), SCIPresetClock(), SCIPsepaInit(), and SCIPstatReset().

void SCIPclockEnable

(

SCIP_CLOCK *

clck

)

enables the clock

Parameters

clck	clock timer

Definition at line 225 of file clock.c.

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

void SCIPclockDisable

(

SCIP_CLOCK *

clck

)

disables and resets the clock

Parameters

clck	clock timer

Definition at line 237 of file clock.c.

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

void SCIPclockSetType	(	SCIP_CLOCK *	clck,
		SCIP_CLOCKTYPE	clocktype
	)

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

Parameters

clck	clock timer
clocktype	type of clock

Definition at line 250 of file clock.c.

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

Referenced by SCIPclockInit().

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

clck	clock timer
set	global SCIP settings

Definition at line 266 of file clock.c.

References SCIP_Clock::clocktype, clockUpdateDefaultType(), SCIP_Clock::cpuclock, cputime2sec(), SCIP_Clock::data, SCIP_Clock::enabled, SCIP_Clock::lasttime, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, SCIP_WallClock::sec, SCIP_WallClock::usec, SCIP_Clock::usedefault, SCIP_CPUClock::user, SCIP_Clock::wallclock, and walltime2sec().

Referenced by addCurrentSolution(), conflictAddConflictCons(), conflictAnalyzeBoundexceedingLP(), conflictAnalyzeInfeasibleLP(), conflictAnalyzeLP(), lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), nlpSolve(), nodeRepropagate(), performStrongbranchWithPropagation(), presolve(), SCIPbranchruleExecExternSol(), SCIPbranchruleExecLPSol(), SCIPbranchruleExecPseudoSol(), SCIPbranchruleExit(), SCIPbranchruleExitsol(), SCIPbranchruleInit(), SCIPbranchruleInitsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPconflictAnalyze(), SCIPconflictAnalyzePseudo(), SCIPconflictAnalyzeStrongbranch(), SCIPconflicthdlrExec(), SCIPconflicthdlrExit(), SCIPconflicthdlrExitsol(), SCIPconflicthdlrInit(), SCIPconflicthdlrInitsol(), SCIPconshdlrCheck(), SCIPconshdlrEnforceLPSol(), SCIPconshdlrEnforcePseudoSol(), SCIPconshdlrExit(), SCIPconshdlrExitpre(), SCIPconshdlrExitsol(), SCIPconshdlrInit(), SCIPconshdlrInitLP(), SCIPconshdlrInitpre(), SCIPconshdlrInitsol(), SCIPconshdlrPresolve(), SCIPconshdlrPropagate(), SCIPconshdlrSeparateLP(), SCIPconshdlrSeparateSol(), SCIPconsResolvePropagation(), SCIPcopy(), SCIPcopyOrig(), SCIPcreate(), SCIPcutpoolSeparate(), SCIPeventhdlrExec(), SCIPeventhdlrExit(), SCIPeventhdlrExitsol(), SCIPeventhdlrInit(), SCIPeventhdlrInitsol(), SCIPheurExec(), SCIPheurExit(), SCIPheurExitsol(), SCIPheurInit(), SCIPheurInitsol(), 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(), SCIPstartClock(), and SCIPstartSolvingTime().

void SCIPclockStop	(	SCIP_CLOCK *	clck,
		SCIP_SET *	set
	)

stops measurement of time in the given clock

Parameters

clck	clock timer
set	global SCIP settings

Definition at line 335 of file clock.c.

References SCIP_Clock::clocktype, SCIP_Clock::cpuclock, SCIP_Clock::data, SCIP_Clock::enabled, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, SCIP_WallClock::sec, SCIP_WallClock::usec, SCIP_Clock::usedefault, SCIP_CPUClock::user, and SCIP_Clock::wallclock.

Referenced by addCurrentSolution(), conflictAddConflictCons(), conflictAnalyzeBoundexceedingLP(), conflictAnalyzeInfeasibleLP(), conflictAnalyzeLP(), lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), nlpSolve(), nodeRepropagate(), performStrongbranchWithPropagation(), presolve(), SCIPbranchruleExecExternSol(), SCIPbranchruleExecLPSol(), SCIPbranchruleExecPseudoSol(), SCIPbranchruleExit(), SCIPbranchruleExitsol(), SCIPbranchruleInit(), SCIPbranchruleInitsol(), SCIPcolGetStrongbranch(), SCIPcolGetStrongbranches(), SCIPconflictAnalyze(), SCIPconflictAnalyzePseudo(), SCIPconflictAnalyzeStrongbranch(), SCIPconflicthdlrExec(), SCIPconflicthdlrExit(), SCIPconflicthdlrExitsol(), SCIPconflicthdlrInit(), SCIPconflicthdlrInitsol(), SCIPconshdlrCheck(), SCIPconshdlrEnforceLPSol(), SCIPconshdlrEnforcePseudoSol(), SCIPconshdlrExit(), SCIPconshdlrExitpre(), SCIPconshdlrExitsol(), SCIPconshdlrInit(), SCIPconshdlrInitLP(), SCIPconshdlrInitpre(), SCIPconshdlrInitsol(), SCIPconshdlrPresolve(), SCIPconshdlrPropagate(), SCIPconshdlrSeparateLP(), SCIPconshdlrSeparateSol(), SCIPconsResolvePropagation(), SCIPcopy(), SCIPcopyOrig(), SCIPcutpoolSeparate(), SCIPeventhdlrExec(), SCIPeventhdlrExit(), SCIPeventhdlrExitsol(), SCIPeventhdlrInit(), SCIPeventhdlrInitsol(), SCIPheurExec(), SCIPheurExit(), SCIPheurExitsol(), SCIPheurInit(), SCIPheurInitsol(), 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(), SCIPstopClock(), and SCIPstopSolvingTime().

SCIP_Bool SCIPclockIsRunning

(

SCIP_CLOCK *

clck

)

returns whether the clock is currently running

Parameters

clck	clock timer

Definition at line 402 of file clock.c.

References SCIP_Clock::nruns, and NULL.

Referenced by nodeRepropagate(), and SCIPreaderRead().

SCIP_Real SCIPclockGetTime

(

SCIP_CLOCK *

clck

)

gets the used time of this clock in seconds

Parameters

clck	clock timer

Definition at line 413 of file clock.c.

References SCIP_Clock::clocktype, SCIP_Clock::cpuclock, cputime2sec(), SCIP_Clock::data, SCIP_Clock::lasttime, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIP_Real, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, SCIP_WallClock::sec, SCIP_WallClock::usec, SCIP_Clock::usedefault, SCIP_CPUClock::user, SCIP_Clock::wallclock, and walltime2sec().

Referenced by clockSetType(), displayRelevantStats(), lpAlgorithm(), lpBarrier(), lpDualSimplex(), lpLexDualSimplex(), lpPrimalSimplex(), printHeuristicStatistics(), printLPStatistics(), printNLPStatistics(), printTime(), printTimingStatistics(), printTreeStatistics(), SCIPbranchruleGetSetupTime(), SCIPbranchruleGetTime(), SCIPconflictGetBoundexceedingLPTime(), SCIPconflictGetGlobalApplTime(), SCIPconflictGetInfeasibleLPTime(), SCIPconflictGetPropTime(), SCIPconflictGetPseudoTime(), SCIPconflictGetStrongbranchTime(), SCIPconflicthdlrGetSetupTime(), SCIPconflicthdlrGetTime(), SCIPconshdlrGetCheckTime(), SCIPconshdlrGetEnfoLPTime(), SCIPconshdlrGetEnfoPSTime(), SCIPconshdlrGetPresolTime(), SCIPconshdlrGetPropTime(), SCIPconshdlrGetRespropTime(), SCIPconshdlrGetSepaTime(), SCIPconshdlrGetSetupTime(), SCIPconshdlrGetStrongBranchPropTime(), SCIPcopy(), SCIPcopyOrig(), SCIPcutpoolGetTime(), SCIPeventhdlrGetSetupTime(), SCIPeventhdlrGetTime(), SCIPgetClockTime(), SCIPgetPresolvingTime(), SCIPgetSolvingTime(), SCIPgetTotalTime(), SCIPheurGetSetupTime(), SCIPheurGetTime(), SCIPnodeselGetSetupTime(), SCIPnodeselGetTime(), SCIPpresolGetSetupTime(), SCIPpresolGetTime(), SCIPpresolve(), SCIPpricerGetSetupTime(), SCIPpricerGetTime(), SCIPpricestoreGetProbPricingTime(), SCIPpropGetPresolTime(), SCIPpropGetRespropTime(), SCIPpropGetSetupTime(), SCIPpropGetStrongBranchPropTime(), SCIPpropGetTime(), SCIPreaderGetReadingTime(), SCIPreaderRead(), SCIPrelaxGetSetupTime(), SCIPrelaxGetTime(), SCIPsepaGetSetupTime(), SCIPsepaGetTime(), SCIPsolveIsStopped(), SCIPstatUpdatePrimalDualIntegral(), solStamp(), and solveNodeInitialLP().

SCIP_Real SCIPclockGetLastTime

(

SCIP_CLOCK *

clck

)

gets the last validated time of this clock in seconds

Parameters

clck	clock timer

Definition at line 493 of file clock.c.

References SCIP_Clock::lasttime, and NULL.

Referenced by solStamp().

void SCIPclockSetTime	(	SCIP_CLOCK *	clck,
		SCIP_Real	sec
	)

sets the used time of this clock in seconds

Parameters

clck	clock timer
sec	time in seconds to set the clock's timer to

Definition at line 503 of file clock.c.

References clockSetType(), SCIP_Clock::clocktype, SCIP_Clock::cpuclock, SCIP_Clock::data, SCIP_Clock::nruns, NULL, SCIP_CLOCKTYPE_CPU, SCIP_CLOCKTYPE_DEFAULT, SCIP_CLOCKTYPE_WALL, SCIPABORT, SCIPdebugMessage, SCIPerrorMessage, SCIP_WallClock::sec, sec2cputime(), sec2walltime(), SCIP_WallClock::usec, SCIP_Clock::usedefault, SCIP_CPUClock::user, and SCIP_Clock::wallclock.

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

SCIP_Real SCIPclockGetTimeOfDay

(

void

)

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

Definition at line 585 of file clock.c.

References NULL, and SCIP_Real.

Referenced by SCIPgetTimeOfDay().