Detailed Description

the function definitions of the synchronization store

Author: Leona Gottwald; Stephen J. Maher; Marc Pfetsch

Definition in file syncstore.c.

#include <assert.h>
#include "scip/def.h"
#include "scip/pub_message.h"
#include "scip/concsolver.h"
#include "scip/struct_concsolver.h"
#include "scip/prob.h"
#include "scip/scip.h"
#include "blockmemshell/memory.h"
#include "tpi/tpi.h"
#include "scip/struct_syncstore.h"
#include "scip/concurrent.h"
#include "scip/syncstore.h"
#include "scip/boundstore.h"

Go to the source code of this file.

Functions
static int	getNSyncdata (SCIP *scip)
SCIP_RETCODE	SCIPsyncstoreCreate (SCIP_SYNCSTORE **syncstore)
SCIP_RETCODE	SCIPsyncstoreRelease (SCIP_SYNCSTORE **syncstore)
SCIP_RETCODE	SCIPsyncstoreCapture (SCIP_SYNCSTORE *syncstore)
SCIP_RETCODE	SCIPsyncstoreInit (SCIP *scip)
SCIP_RETCODE	SCIPsyncstoreExit (SCIP_SYNCSTORE *syncstore)
SCIP_Bool	SCIPsyncstoreSolveIsStopped (SCIP_SYNCSTORE *syncstore)
void	SCIPsyncstoreSetSolveIsStopped (SCIP_SYNCSTORE *syncstore, SCIP_Bool stopped)
SCIP_Real	SCIPsyncstoreGetLastUpperbound (SCIP_SYNCSTORE *syncstore)
SCIP_Real	SCIPsyncstoreGetLastLowerbound (SCIP_SYNCSTORE *syncstore)
int	SCIPsyncstoreGetLastNSols (SCIP_SYNCSTORE *syncstore)
int	SCIPsyncstoreGetLastNBounds (SCIP_SYNCSTORE *syncstore)
SCIP_Longint	SCIPsyncstoreGetLastMemTotal (SCIP_SYNCSTORE *syncstore)
SCIP_Real	SCIPsyncstoreGetLastSyncfreq (SCIP_SYNCSTORE *syncstore)
SCIP_SYNCDATA *	SCIPsyncstoreGetSyncdata (SCIP_SYNCSTORE *syncstore, SCIP_Longint syncnum)
SCIP_SYNCDATA *	SCIPsyncstoreGetNextSyncdata (SCIP_SYNCSTORE syncstore, SCIP_SYNCDATA syncdata, SCIP_Real syncfreq, SCIP_Longint writenum, SCIP_Real *delay)
SCIP_RETCODE	SCIPsyncstoreEnsureAllSynced (SCIP_SYNCSTORE syncstore, SCIP_SYNCDATA syncdata)
SCIP_RETCODE	SCIPsyncstoreStartSync (SCIP_SYNCSTORE syncstore, SCIP_Longint syncnum, SCIP_SYNCDATA *syncdata)
SCIP_RETCODE	SCIPsyncstoreFinishSync (SCIP_SYNCSTORE syncstore, SCIP_SYNCDATA *syncdata)
SCIP_STATUS	SCIPsyncdataGetStatus (SCIP_SYNCDATA *syncdata)
int	SCIPsyncstoreGetWinner (SCIP_SYNCSTORE *syncstore)
int	SCIPsyncdataGetNSynced (SCIP_SYNCDATA *syncdata)
int	SCIPsyncstoreGetNSolvers (SCIP_SYNCSTORE *syncstore)
SCIP_Longint	SCIPsyncdataGetMemTotal (SCIP_SYNCDATA *syncdata)
SCIP_Real	SCIPsyncdataGetSyncFreq (SCIP_SYNCDATA *syncdata)
SCIP_Real	SCIPsyncdataGetUpperbound (SCIP_SYNCDATA *syncdata)
SCIP_Real	SCIPsyncdataGetLowerbound (SCIP_SYNCDATA *syncdata)
void	SCIPsyncdataGetSolutions (SCIP_SYNCDATA syncdata, SCIP_Real solvalues, int solowner, int *nsols)
SCIP_BOUNDSTORE *	SCIPsyncdataGetBoundChgs (SCIP_SYNCDATA *syncdata)
void	SCIPsyncdataSetSyncFreq (SCIP_SYNCSTORE syncstore, SCIP_SYNCDATA syncdata, SCIP_Real syncfreq)
void	SCIPsyncdataSetStatus (SCIP_SYNCDATA *syncdata, SCIP_STATUS status, int solverid)
void	SCIPsyncdataAddMemTotal (SCIP_SYNCDATA *syncdata, SCIP_Longint memtotal)
void	SCIPsyncdataSetUpperbound (SCIP_SYNCDATA *syncdata, SCIP_Real upperbound)
void	SCIPsyncdataSetLowerbound (SCIP_SYNCDATA *syncdata, SCIP_Real lowerbound)
void	SCIPsyncdataGetSolutionBuffer (SCIP_SYNCSTORE syncstore, SCIP_SYNCDATA syncdata, SCIP_Real solobj, int ownerid, SCIP_Real **buffer)
SCIP_RETCODE	SCIPsyncdataAddBoundChanges (SCIP_SYNCSTORE syncstore, SCIP_SYNCDATA syncdata, SCIP_BOUNDSTORE *boundstore)
SCIP_Bool	SCIPsyncstoreIsInitialized (SCIP_SYNCSTORE *syncstore)
SCIP_PARALLELMODE	SCIPsyncstoreGetMode (SCIP_SYNCSTORE *syncstore)

Function Documentation

◆ getNSyncdata()

int getNSyncdata ( SCIP * scip )

static

computes the size of the array of synchronization data, such that it cannot ever happen that a synchronization data is reused while still not read by any thread

Parameters

scip	SCIP main data structure

Definition at line 55 of file syncstore.c.

References SCIP_CALL_ABORT, and SCIPgetIntParam().

Referenced by SCIPsyncstoreInit().

◆ SCIPsyncstoreCreate()

SCIP_RETCODE SCIPsyncstoreCreate ( SCIP_SYNCSTORE ** syncstore )

creates and captures a new synchronization store

Parameters

syncstore pointer to return the created synchronization store

Definition at line 67 of file syncstore.c.

References assert(), BMSallocMemory, FALSE, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_PARA_DETERMINISTIC, SCIPdebugMessage, and SCIPtpiInitLock().

Referenced by doScipCreate(), and SCIPconstructSyncstore().

◆ SCIPsyncstoreRelease()

SCIP_RETCODE SCIPsyncstoreRelease ( SCIP_SYNCSTORE ** syncstore )

releases a synchronization store

Parameters

syncstore pointer to the synchronization store

Definition at line 89 of file syncstore.c.

References assert(), BMSfreeMemory, NULL, SCIP_CALL, SCIP_OKAY, SCIPsyncstoreExit(), SCIPtpiAcquireLock(), SCIPtpiDestroyLock(), and SCIPtpiReleaseLock().

Referenced by doCopy(), SCIPcopyOrigConsCompression(), SCIPfree(), and SCIPfreeSyncstore().

◆ SCIPsyncstoreCapture()

SCIP_RETCODE SCIPsyncstoreCapture ( SCIP_SYNCSTORE * syncstore )

captures a synchronization store

Parameters

syncstore the synchronization store

Definition at line 124 of file syncstore.c.

References SCIP_SyncStore::lock, SCIP_SyncStore::nuses, SCIP_CALL, SCIP_OKAY, SCIPtpiAcquireLock(), and SCIPtpiReleaseLock().

Referenced by doCopy(), and SCIPcopyOrigConsCompression().

◆ SCIPsyncstoreInit()

SCIP_RETCODE SCIPsyncstoreInit ( SCIP * scip )

initialize the syncstore for the given SCIP instance

Parameters

scip	SCIP main data structure

Definition at line 138 of file syncstore.c.

References assert(), FALSE, getNSyncdata(), i, SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, SCIP_SyncStore::limit_absgap, SCIP_SyncStore::limit_gap, SCIP_SyncStore::mainscip, SCIP_SyncStore::maxnsols, SCIP_SyncStore::maxnsyncdelay, SCIP_SyncStore::minsyncdelay, SCIP_SyncStore::mode, SCIP_SyncStore::ninitvars, SCIP_SyncStore::nsolvers, SCIP_SyncStore::nsyncdata, NULL, SCIP_CALL, SCIP_OKAY, SCIP_PARA_DETERMINISTIC, SCIPallocBlockMemoryArray, SCIPautoselectDisps(), SCIPboundstoreCreate(), SCIPgetIntParam(), SCIPgetNConcurrentSolvers(), SCIPgetNFixedVars(), SCIPgetNNZs(), SCIPgetNVars(), SCIPgetRealParam(), SCIPgetSyncstore(), SCIPtpiInit(), SCIPtpiInitCondition(), SCIPtpiInitLock(), SCIP_SyncStore::stopped, SCIP_SyncStore::syncdata, SCIP_SyncStore::syncfreqinit, SCIP_SyncStore::syncfreqmax, and TRUE.

Referenced by SCIPsolveConcurrent().

◆ SCIPsyncstoreExit()

SCIP_RETCODE SCIPsyncstoreExit ( SCIP_SYNCSTORE * syncstore )

deinitializes the synchronization store

Parameters

syncstore the synchronization store

Definition at line 204 of file syncstore.c.

References assert(), FALSE, i, SCIP_SyncStore::initialized, SCIP_SyncStore::mainscip, SCIP_SyncStore::maxnsols, SCIP_SyncStore::ninitvars, SCIP_SyncStore::nsyncdata, NULL, SCIP_CALL, SCIP_OKAY, SCIPboundstoreFree(), SCIPfreeBlockMemoryArray, SCIPtpiDestroyCondition(), SCIPtpiDestroyLock(), SCIPtpiExit(), SCIP_SyncStore::stopped, and SCIP_SyncStore::syncdata.

Referenced by SCIPfreeProb(), and SCIPsyncstoreRelease().

◆ SCIPsyncstoreSolveIsStopped()

SCIP_Bool SCIPsyncstoreSolveIsStopped ( SCIP_SYNCSTORE * syncstore )

checks whether the solve-is-stopped flag in the syncstore has been set by any thread

Parameters

syncstore the synchronization store

Definition at line 241 of file syncstore.c.

References SCIP_SyncStore::lock, SCIP_Bool, SCIP_CALL_ABORT, SCIPtpiAcquireLock(), SCIPtpiReleaseLock(), and SCIP_SyncStore::stopped.

Referenced by SCIPsolveIsStopped(), and SCIPsyncstoreStartSync().

◆ SCIPsyncstoreSetSolveIsStopped()

void SCIPsyncstoreSetSolveIsStopped	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_Bool	stopped )

sets the solve-is-stopped flag in the syncstore so that subsequent calls to SCIPsyncstoreSolveIsStopped will return the given value in any thread

Parameters

syncstore	the synchronization store
stopped	flag if the solve is stopped

Definition at line 259 of file syncstore.c.

References SCIP_SyncStore::lock, SCIP_Bool, SCIP_CALL_ABORT, SCIPtpiAcquireLock(), SCIPtpiReleaseLock(), and SCIP_SyncStore::stopped.

Referenced by SCIPconcurrentSolve(), SCIPsolveConcurrent(), and SCIPsyncstoreFinishSync().

◆ SCIPsyncstoreGetLastUpperbound()

SCIP_Real SCIPsyncstoreGetLastUpperbound ( SCIP_SYNCSTORE * syncstore )

gets the upperbound from the last synchronization

Parameters

syncstore the synchronization store

Definition at line 272 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, SCIP_SyncStore::mainscip, NULL, SCIP_Real, and SCIPinfinity().

Referenced by SCIP_DECL_DISPOUTPUT(), and SCIPgetConcurrentPrimalbound().

◆ SCIPsyncstoreGetLastLowerbound()

SCIP_Real SCIPsyncstoreGetLastLowerbound ( SCIP_SYNCSTORE * syncstore )

gets the lowerbound from the last synchronization

Parameters

syncstore the synchronization store

Definition at line 283 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, SCIP_SyncStore::mainscip, NULL, SCIP_Real, and SCIPinfinity().

Referenced by SCIPgetConcurrentDualbound().

◆ SCIPsyncstoreGetLastNSols()

int SCIPsyncstoreGetLastNSols ( SCIP_SYNCSTORE * syncstore )

gets the number of solutions from the last synchronization

Parameters

syncstore the synchronization store

Definition at line 294 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, and NULL.

Referenced by SCIP_DECL_DISPOUTPUT().

◆ SCIPsyncstoreGetLastNBounds()

int SCIPsyncstoreGetLastNBounds ( SCIP_SYNCSTORE * syncstore )

gets the number of boundchanges from the last synchronization

Parameters

syncstore the synchronization store

Definition at line 305 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, NULL, and SCIPboundstoreGetNChgs().

◆ SCIPsyncstoreGetLastMemTotal()

SCIP_Longint SCIPsyncstoreGetLastMemTotal ( SCIP_SYNCSTORE * syncstore )

gets total memory used by all solvers from the last synchronization

Parameters

syncstore the synchronization store

Definition at line 316 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, NULL, and SCIP_Longint.

Referenced by SCIP_DECL_DISPOUTPUT().

◆ SCIPsyncstoreGetLastSyncfreq()

SCIP_Real SCIPsyncstoreGetLastSyncfreq ( SCIP_SYNCSTORE * syncstore )

gets the synchronization frequency from the last synchronization

Parameters

syncstore the synchronization store

Definition at line 327 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, NULL, and SCIP_Real.

◆ SCIPsyncstoreGetSyncdata()

SCIP_SYNCDATA * SCIPsyncstoreGetSyncdata	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_Longint	syncnum )

get synchronization data with given number. It is the responsibility of the caller to only ask for a synchronization number that still exists, which is checked with an assert in debug mode.

get synchronization data with given number. It is the responsibility of the caller to only ask for a synchronization number that still exists.

Parameters

syncstore	the synchronization store
syncnum	the number of the synchronization to start, which must be increasing between calls of the same thread

Definition at line 340 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::nsyncdata, NULL, SCIP_Longint, and SCIP_SyncStore::syncdata.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncstoreGetNextSyncdata()

SCIP_SYNCDATA * SCIPsyncstoreGetNextSyncdata	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_SYNCDATA *	syncdata,
		SCIP_Real	syncfreq,
		SCIP_Longint	writenum,
		SCIP_Real *	delay )

get the next synchronization data that should be read and adjust the delay. Returns NULL if no more data should be read due to minimum delay

Parameters

syncstore	the synchronization store
syncdata	the synchronization data
syncfreq	the current synchronization frequency
writenum	number of synchronizations the solver has written to
delay	pointer holding the current synchronization delay

Definition at line 361 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::maxnsyncdelay, SCIP_SyncStore::nsyncdata, NULL, SCIP_Longint, SCIP_Real, SCIP_STATUS_UNKNOWN, and SCIP_SyncStore::syncdata.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncstoreEnsureAllSynced()

SCIP_RETCODE SCIPsyncstoreEnsureAllSynced	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_SYNCDATA *	syncdata )

ensures that the given synchronization data has been written by all solvers upon return of this function and blocks the caller if necessary.

Parameters

syncstore	the synchronization store
syncdata	the synchronization data

Definition at line 409 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::nsolvers, NULL, SCIP_CALL, SCIP_OKAY, SCIPtpiAcquireLock(), SCIPtpiReleaseLock(), and SCIPtpiWaitCondition().

Referenced by SCIPconcsolverSync().

◆ SCIPsyncstoreStartSync()

SCIP_RETCODE SCIPsyncstoreStartSync	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_Longint	syncnum,
		SCIP_SYNCDATA **	syncdata )

Start synchronization for the given concurrent solver. Needs to be followed by a call to SCIPsyncstoreFinishSync if the syncdata that is returned is not NULL

Parameters

syncstore	the synchronization store
syncnum	the number of the synchronization to start, which must be increasing between calls of the same thread
syncdata	pointer to return the synchronization data

Definition at line 438 of file syncstore.c.

References assert(), i, SCIP_SyncStore::initialized, SCIP_SyncStore::mainscip, SCIP_SyncStore::nsyncdata, NULL, SCIP_CALL, SCIP_Longint, SCIP_OKAY, SCIP_STATUS_UNKNOWN, SCIPboundstoreClear(), SCIPgetMemTotal(), SCIPinfinity(), SCIPsyncstoreSolveIsStopped(), SCIPtpiAcquireLock(), and SCIP_SyncStore::syncdata.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncstoreFinishSync()

SCIP_RETCODE SCIPsyncstoreFinishSync	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_SYNCDATA **	syncdata )

finishes synchronization for the synchronization data

Parameters

syncstore	the synchronization store
syncdata	the synchronization data

Definition at line 481 of file syncstore.c.

References assert(), FALSE, SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, SCIP_SyncStore::limit_absgap, SCIP_SyncStore::limit_gap, SCIP_SyncStore::mainscip, SCIP_SyncStore::nsolvers, NULL, REALABS, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIP_STATUS_UNKNOWN, SCIP_VERBLEVEL_HIGH, SCIPgetConcurrentDualbound(), SCIPgetConcurrentGap(), SCIPgetConcurrentPrimalbound(), SCIPgetNLimSolsFound(), SCIPprintDisplayLine(), SCIPsyncstoreSetSolveIsStopped(), SCIPtpiBroadcastCondition(), SCIPtpiReleaseLock(), and TRUE.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncdataGetStatus()

SCIP_STATUS SCIPsyncdataGetStatus ( SCIP_SYNCDATA * syncdata )

gets status in synchronization data

Parameters

syncdata the synchronization data

Definition at line 521 of file syncstore.c.

References assert(), and NULL.

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE(), and SCIPconcsolverSync().

◆ SCIPsyncstoreGetWinner()

int SCIPsyncstoreGetWinner ( SCIP_SYNCSTORE * syncstore )

gets the solver that had the best status, or -1 if solve is not stopped yet

Parameters

syncstore the synchronization store

Definition at line 531 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::lastsync, NULL, and SCIP_STATUS_UNKNOWN.

Referenced by SCIPcollectConcsolverStatistics(), SCIPconcurrentSolve(), and SCIPprintConcsolverStatistics().

◆ SCIPsyncdataGetNSynced()

int SCIPsyncdataGetNSynced ( SCIP_SYNCDATA * syncdata )

how many solvers have already finished synchronizing on this synchronization data

Parameters

syncdata the synchronization data

Definition at line 545 of file syncstore.c.

References assert(), and NULL.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncstoreGetNSolvers()

int SCIPsyncstoreGetNSolvers ( SCIP_SYNCSTORE * syncstore )

how many solvers have are running concurrently

Parameters

syncstore the synchronization store

Definition at line 555 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::nsolvers, and NULL.

Referenced by SCIPconcsolverSync(), and SCIPconcurrentSolve().

◆ SCIPsyncdataGetMemTotal()

SCIP_Longint SCIPsyncdataGetMemTotal ( SCIP_SYNCDATA * syncdata )

read amount total memory used from synchronization data

read amount of memory used from synchronization data

Parameters

syncdata the synchronization data

Definition at line 566 of file syncstore.c.

References assert(), NULL, and SCIP_Longint.

Referenced by SCIPconcsolverGetMemTotal().

◆ SCIPsyncdataGetSyncFreq()

SCIP_Real SCIPsyncdataGetSyncFreq ( SCIP_SYNCDATA * syncdata )

read the synchronization frequency from a synchronization data

Parameters

syncdata the synchronization data

Definition at line 576 of file syncstore.c.

References assert(), NULL, and SCIP_Real.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncdataGetUpperbound()

SCIP_Real SCIPsyncdataGetUpperbound ( SCIP_SYNCDATA * syncdata )

read the upperbound stored in a synchronization data

Parameters

syncdata the synchronization data

Definition at line 586 of file syncstore.c.

References assert(), NULL, and SCIP_Real.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncdataGetLowerbound()

SCIP_Real SCIPsyncdataGetLowerbound ( SCIP_SYNCDATA * syncdata )

read the lowerbound stored in a synchronization data

Parameters

syncdata the synchronization data

Definition at line 596 of file syncstore.c.

References assert(), NULL, and SCIP_Real.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncdataGetSolutions()

void SCIPsyncdataGetSolutions	(	SCIP_SYNCDATA *	syncdata,
		SCIP_Real ***	solvalues,
		int **	solowner,
		int *	nsols )

read the solutions stored in a synchronization data

Parameters

syncdata	the synchronization data
solvalues	array of buffers containing the solution values
solowner	array of ownerids of solutions
nsols	pointer to return number of solutions

Definition at line 606 of file syncstore.c.

References assert(), NULL, and SCIP_Real.

Referenced by SCIP_DECL_CONCSOLVERSYNCREAD().

◆ SCIPsyncdataGetBoundChgs()

SCIP_BOUNDSTORE * SCIPsyncdataGetBoundChgs ( SCIP_SYNCDATA * syncdata )

read bound changes stored in the synchronization data

Parameters

syncdata the synchronization data

Definition at line 624 of file syncstore.c.

References assert(), and NULL.

Referenced by SCIP_DECL_CONCSOLVERSYNCREAD(), and SCIPconcsolverSync().

◆ SCIPsyncdataSetSyncFreq()

void SCIPsyncdataSetSyncFreq	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_SYNCDATA *	syncdata,
		SCIP_Real	syncfreq )

write the synchronization frequency to a synchronization data

Parameters

syncstore	the synchronization store
syncdata	the synchronization data
syncfreq	the synchronization frequency

Definition at line 634 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, MIN, NULL, SCIP_Real, and SCIP_SyncStore::syncfreqmax.

Referenced by SCIPconcsolverSync().

◆ SCIPsyncdataSetStatus()

void SCIPsyncdataSetStatus	(	SCIP_SYNCDATA *	syncdata,
		SCIP_STATUS	status,
		int	solverid )

set status in the synchronization data

Parameters

syncdata	the synchronization data the upperbound should be added to
status	the status
solverid	identifier of the solver that has this status

Definition at line 648 of file syncstore.c.

References assert(), NULL, and SCIP_STATUS_OPTIMAL.

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE().

◆ SCIPsyncdataAddMemTotal()

void SCIPsyncdataAddMemTotal	(	SCIP_SYNCDATA *	syncdata,
		SCIP_Longint	memtotal )

adds memory used to the synchronization data

Parameters

syncdata	the synchronization data the solution should be added to
memtotal	the number of bytes used

Definition at line 684 of file syncstore.c.

References assert(), NULL, and SCIP_Longint.

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE().

◆ SCIPsyncdataSetUpperbound()

void SCIPsyncdataSetUpperbound	(	SCIP_SYNCDATA *	syncdata,
		SCIP_Real	upperbound )

set upperbound to the synchronization data

Parameters

syncdata	the synchronization data the upperbound should be added to
upperbound	the upperbound

Definition at line 695 of file syncstore.c.

References assert(), MIN, NULL, and SCIP_Real.

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE().

◆ SCIPsyncdataSetLowerbound()

void SCIPsyncdataSetLowerbound	(	SCIP_SYNCDATA *	syncdata,
		SCIP_Real	lowerbound )

set lowerbound to the synchronization data

Parameters

syncdata	the synchronization data the lowerbound should be added to
lowerbound	the lowerbound

Definition at line 706 of file syncstore.c.

References assert(), MAX, NULL, and SCIP_Real.

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE().

◆ SCIPsyncdataGetSolutionBuffer()

void SCIPsyncdataGetSolutionBuffer	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_SYNCDATA *	syncdata,
		SCIP_Real	solobj,
		int	ownerid,
		SCIP_Real **	buffer )

gives a buffer to store the solution values, or NULL if solution should not be stored because there are already better solutions stored.

Parameters

syncstore	the synchronization store
syncdata	the synchronization data the solution should be added to
solobj	the objective value of the solution
ownerid	an identifier for the owner of the solution, e.g. the thread number
buffer	pointer to return a buffer for the solution values, which must be set if the buffer is not NULL

Definition at line 719 of file syncstore.c.

References assert(), i, SCIP_SyncStore::initialized, SCIP_SyncStore::maxnsols, NULL, SCIP_Real, and SCIPswapPointers().

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE().

◆ SCIPsyncdataAddBoundChanges()

SCIP_RETCODE SCIPsyncdataAddBoundChanges	(	SCIP_SYNCSTORE *	syncstore,
		SCIP_SYNCDATA *	syncdata,
		SCIP_BOUNDSTORE *	boundstore )

adds bound changes to the synchronization data

Parameters

syncstore	the synchronization store
syncdata	the synchronization data
boundstore	bound store containing the bounds to add

Definition at line 778 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, SCIP_SyncStore::mainscip, NULL, SCIP_CALL, SCIP_OKAY, and SCIPboundstoreMerge().

Referenced by SCIP_DECL_CONCSOLVERSYNCWRITE().

◆ SCIPsyncstoreIsInitialized()

SCIP_Bool SCIPsyncstoreIsInitialized ( SCIP_SYNCSTORE * syncstore )

is synchronization store initialized

Parameters

syncstore the synchronization store

Definition at line 795 of file syncstore.c.

References assert(), SCIP_SyncStore::initialized, NULL, and SCIP_Bool.

Referenced by SCIP_DECL_EVENTINIT(), SCIP_DECL_EVENTINIT(), SCIPcollectConcsolverStatistics(), SCIPconcurrentSolve(), SCIPdispAutoActivate(), SCIPfreeProb(), and SCIPprintConcsolverStatistics().

◆ SCIPsyncstoreGetMode()

SCIP_PARALLELMODE SCIPsyncstoreGetMode ( SCIP_SYNCSTORE * syncstore )

returns the mode of the synchronization store

Parameters

syncstore the synchronization store

Definition at line 805 of file syncstore.c.

References assert(), SCIP_SyncStore::mode, and NULL.

Detailed Description

Functions

Function Documentation

◆ getNSyncdata()

◆ SCIPsyncstoreCreate()

◆ SCIPsyncstoreRelease()

◆ SCIPsyncstoreCapture()

◆ SCIPsyncstoreInit()

◆ SCIPsyncstoreExit()

◆ SCIPsyncstoreSolveIsStopped()

◆ SCIPsyncstoreSetSolveIsStopped()

◆ SCIPsyncstoreGetLastUpperbound()

◆ SCIPsyncstoreGetLastLowerbound()

◆ SCIPsyncstoreGetLastNSols()

◆ SCIPsyncstoreGetLastNBounds()

◆ SCIPsyncstoreGetLastMemTotal()

◆ SCIPsyncstoreGetLastSyncfreq()

◆ SCIPsyncstoreGetSyncdata()

◆ SCIPsyncstoreGetNextSyncdata()

◆ SCIPsyncstoreEnsureAllSynced()

◆ SCIPsyncstoreStartSync()

◆ SCIPsyncstoreFinishSync()

◆ SCIPsyncdataGetStatus()

◆ SCIPsyncstoreGetWinner()

◆ SCIPsyncdataGetNSynced()

◆ SCIPsyncstoreGetNSolvers()

◆ SCIPsyncdataGetMemTotal()

◆ SCIPsyncdataGetSyncFreq()

◆ SCIPsyncdataGetUpperbound()

◆ SCIPsyncdataGetLowerbound()

◆ SCIPsyncdataGetSolutions()

◆ SCIPsyncdataGetBoundChgs()

◆ SCIPsyncdataSetSyncFreq()

◆ SCIPsyncdataSetStatus()

◆ SCIPsyncdataAddMemTotal()

◆ SCIPsyncdataSetUpperbound()

◆ SCIPsyncdataSetLowerbound()

◆ SCIPsyncdataGetSolutionBuffer()

◆ SCIPsyncdataAddBoundChanges()

◆ SCIPsyncstoreIsInitialized()

◆ SCIPsyncstoreGetMode()