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SCIP Doxygen Documentation: concsolver_scip.c Source File

63#define EVENTHDLR_NAME "sync" 64#define EVENTHDLR_DESC "event handler for synchronization of concurrent scip sovlers" 71struct

SCIP_EventhdlrData

87

assert(eventhdlr !=

NULL

);

91

assert(eventhdlrdata !=

NULL

);

108

assert(eventhdlr !=

NULL

);

112

assert(eventhdlrdata !=

NULL

);

115

assert(syncstore !=

NULL

);

133

assert(eventhdlr !=

NULL

);

137

assert(eventhdlrdata !=

NULL

);

140 if

( eventhdlrdata->filterpos >= 0 )

143

eventhdlrdata->filterpos = -1;

153

assert(eventhdlr !=

NULL

);

155

assert(event !=

NULL

);

174

eventhdlrdata->filterpos = -1;

178

assert(eventhdlr !=

NULL

);

188struct

SCIP_ConcSolverTypeData

195struct

SCIP_ConcSolverData

228 static char

childsel[] = {

'h'

,

'i'

,

'p'

,

'r'

,

'l'

,

'd'

,

'u'

};

230

assert(concsolver !=

NULL

);

233

assert(data !=

NULL

);

256

assert(concsolver !=

NULL

);

259

assert(data !=

NULL

);

286 for

( i = 0; i < data->nvars; i++ )

290

assert(var !=

NULL

);

341

assert(concsolvertype !=

NULL

);

342

assert(concsolver !=

NULL

);

352 if

( typedata->loademphasis )

366 for

( i = 0; i < nparams; ++i )

372 if

( strncmp(

paramname

,

"limits/"

, 7) == 0 ||

373

strncmp(

paramname

,

"numerics/"

, 9) == 0 ||

374

strncmp(

paramname

,

"memory/"

, 7) == 0 ||

375

strncmp(

paramname

,

"concurrent/sync/"

, 16) == 0 ||

376

strncmp(

paramname

,

"heuristics/sync/"

, 16) == 0 ||

377

strncmp(

paramname

,

"propagating/sync/"

, 17) == 0 )

379

fixedparams[nfixedparams++] = params[i];

386 for

( i = 0; i < nfixedparams; ++i )

429 if

( changechildsel )

443

assert(concsolver !=

NULL

);

446

assert(data !=

NULL

);

447

assert(data->solverscip !=

NULL

);

475

assert(concsolver !=

NULL

);

478

assert(data !=

NULL

);

505

assert(concsolver !=

NULL

);

508

assert(data !=

NULL

);

509

assert(data->solverscip !=

NULL

);

518

assert(nvars == data->nvars);

524 for

( i = 0; i < nsols; ++i )

560

assert(concsolver !=

NULL

);

563

assert(data !=

NULL

);

589

assert(concsolver !=

NULL

);

592

assert(data !=

NULL

);

612

assert(data !=

NULL

);

631

nsols =

MIN

(nsols, maxcandsols);

634 for

( i = 0; i < nsols; ++i )

649 if

( solvals ==

NULL

)

656 if

( *nsolsshared == maxsharedsols )

663 if

( boundstore !=

NULL

)

685

assert(data !=

NULL

);

693 for

( i = 0; i < nsols; ++i )

698 if

( concsolverids[i] == concsolverid )

712

*ntighterintbnds = 0;

716 for

( i = 0; i < nbndchgs; ++i )

745

++(*ntighterintbnds);

768

data->loademphasis =

FALSE

;

770

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

771

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

774

data->loademphasis =

TRUE

;

777

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

778

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

781

data->loademphasis =

TRUE

;

784

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

785

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

788

data->loademphasis =

TRUE

;

791

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

792

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

795

data->loademphasis =

TRUE

;

798

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

799

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

802

data->loademphasis =

TRUE

;

805

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

806

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

809

data->loademphasis =

TRUE

;

812

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

813

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

816

data->loademphasis =

TRUE

;

819

concsolverScipExec, concsolverGetSolvingData, concsolverScipStop, concsolverScipSyncWrite,

820

concsolverScipSyncRead, concsolverTypeScipFreeData, data) );

SCIP_Real SCIPboundstoreGetChgVal(SCIP_BOUNDSTORE *boundstore, int i)

SCIP_BOUNDTYPE SCIPboundstoreGetChgType(SCIP_BOUNDSTORE *boundstore, int i)

int SCIPboundstoreGetChgVaridx(SCIP_BOUNDSTORE *boundstore, int i)

int SCIPboundstoreGetNChgs(SCIP_BOUNDSTORE *boundstore)

the interface of the boundstore structure

SCIP_CONCSOLVERDATA * SCIPconcsolverGetData(SCIP_CONCSOLVER *concsolver)

void SCIPconcsolverSetData(SCIP_CONCSOLVER *concsolver, SCIP_CONCSOLVERDATA *data)

int SCIPconcsolverGetIdx(SCIP_CONCSOLVER *concsolver)

char * SCIPconcsolverGetName(SCIP_CONCSOLVER *concsolver)

SCIP_CONCSOLVERTYPEDATA * SCIPconcsolverTypeGetData(SCIP_CONCSOLVERTYPE *concsolvertype)

datastructures for concurrent solvers

static SCIP_DECL_CONCSOLVERDESTROYINST(concsolverScipDestroyInstance)

static SCIP_DECL_CONCSOLVERINITSEEDS(concsolverScipInitSeeds)

static SCIP_DECL_CONCSOLVERSYNCREAD(concsolverScipSyncRead)

static SCIP_RETCODE initConcsolver(SCIP *scip, SCIP_CONCSOLVER *concsolver)

static SCIP_DECL_EVENTEXIT(eventExitSync)

static SCIP_DECL_CONCSOLVERTYPEFREEDATA(concsolverTypeScipFreeData)

SCIP_RETCODE SCIPincludeConcurrentScipSolvers(SCIP *scip)

static SCIP_RETCODE disableConflictingDualReductions(SCIP *scip)

static SCIP_DECL_EVENTINIT(eventInitSync)

static SCIP_DECL_EVENTFREE(eventFreeSync)

static SCIP_RETCODE setChildSelRule(SCIP_CONCSOLVER *concsolver)

static SCIP_DECL_CONCSOLVERSYNCWRITE(concsolverScipSyncWrite)

static SCIP_DECL_EVENTEXEC(eventExecSync)

static SCIP_RETCODE includeEventHdlrSync(SCIP *scip)

static SCIP_DECL_CONCSOLVERSTOP(concsolverScipStop)

static SCIP_DECL_CONCSOLVERCREATEINST(concsolverScipCreateInstance)

static SCIP_DECL_CONCSOLVEREXEC(concsolverScipExec)

static SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(concsolverGetSolvingData)

implementation of concurrent solver interface for SCIP

SCIP_RETCODE SCIPsynchronize(SCIP *scip)

SCIP_RETCODE SCIPaddConcurrentBndchg(SCIP *scip, SCIP_VAR *var, SCIP_Real val, SCIP_BOUNDTYPE bndtype)

SCIP_RETCODE SCIPcopySolStats(SCIP_SOL *source, SCIP_SOL *target)

SCIP_RETCODE SCIPcreateConcurrent(SCIP *scip, SCIP_CONCSOLVER *concsolver, int *varperm)

SCIP_BOUNDSTORE * SCIPgetConcurrentGlobalBoundChanges(SCIP *scip)

SCIP_Bool SCIPIsConcurrentSolNew(SCIP *scip, SCIP_SOL *sol)

SCIP_RETCODE SCIPcopyConcurrentSolvingStats(SCIP *source, SCIP *target)

SCIP_RETCODE SCIPaddConcurrentSol(SCIP *scip, SCIP_SOL *sol)

helper functions for concurrent scip solvers

SCIP_RETCODE SCIPcopy(SCIP *sourcescip, SCIP *targetscip, SCIP_HASHMAP *varmap, SCIP_HASHMAP *consmap, const char *suffix, SCIP_Bool global, SCIP_Bool enablepricing, SCIP_Bool threadsafe, SCIP_Bool passmessagehdlr, SCIP_Bool *valid)

SCIP_Bool SCIPfileExists(const char *filename)

SCIP_RETCODE SCIPprintStatus(SCIP *scip, FILE *file)

SCIP_RETCODE SCIPfree(SCIP **scip)

SCIP_RETCODE SCIPcreate(SCIP **scip)

SCIP_STATUS SCIPgetStatus(SCIP *scip)

int SCIPgetNVars(SCIP *scip)

SCIP_VAR ** SCIPgetVars(SCIP *scip)

void SCIPhashmapFree(SCIP_HASHMAP **hashmap)

void * SCIPhashmapGetImage(SCIP_HASHMAP *hashmap, void *origin)

SCIP_RETCODE SCIPhashmapCreate(SCIP_HASHMAP **hashmap, BMS_BLKMEM *blkmem, int mapsize)

void SCIPinfoMessage(SCIP *scip, FILE *file, const char *formatstr,...)

void SCIPverbMessage(SCIP *scip, SCIP_VERBLEVEL msgverblevel, FILE *file, const char *formatstr,...)

SCIP_MESSAGEHDLR * SCIPgetMessagehdlr(SCIP *scip)

void SCIPsetMessagehdlrQuiet(SCIP *scip, SCIP_Bool quiet)

SCIP_RETCODE SCIPgetBoolParam(SCIP *scip, const char *name, SCIP_Bool *value)

int SCIPgetNParams(SCIP *scip)

SCIP_RETCODE SCIPsetIntParam(SCIP *scip, const char *name, int value)

SCIP_RETCODE SCIPreadParams(SCIP *scip, const char *filename)

SCIP_RETCODE SCIPunfixParam(SCIP *scip, const char *name)

SCIP_RETCODE SCIPsetEmphasis(SCIP *scip, SCIP_PARAMEMPHASIS paramemphasis, SCIP_Bool quiet)

SCIP_RETCODE SCIPsetCharParam(SCIP *scip, const char *name, char value)

SCIP_RETCODE SCIPgetStringParam(SCIP *scip, const char *name, char **value)

SCIP_PARAM ** SCIPgetParams(SCIP *scip)

SCIP_RETCODE SCIPsetBoolParam(SCIP *scip, const char *name, SCIP_Bool value)

SCIP_RETCODE SCIPfixParam(SCIP *scip, const char *name)

SCIP_RETCODE SCIPincludeConcsolverType(SCIP *scip, const char *name, SCIP_Real prefpriodefault, SCIP_DECL_CONCSOLVERCREATEINST((*concsolvercreateinst)), SCIP_DECL_CONCSOLVERDESTROYINST((*concsolverdestroyinst)), SCIP_DECL_CONCSOLVERINITSEEDS((*concsolverinitseeds)), SCIP_DECL_CONCSOLVEREXEC((*concsolverexec)), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA((*concsolvercopysolvdata)), SCIP_DECL_CONCSOLVERSTOP((*concsolverstop)), SCIP_DECL_CONCSOLVERSYNCWRITE((*concsolversyncwrite)), SCIP_DECL_CONCSOLVERSYNCREAD((*concsolversyncread)), SCIP_DECL_CONCSOLVERTYPEFREEDATA((*concsolvertypefreedata)), SCIP_CONCSOLVERTYPEDATA *data)

SCIP_RETCODE SCIPincludeEventhdlrBasic(SCIP *scip, SCIP_EVENTHDLR **eventhdlrptr, const char *name, const char *desc, SCIP_DECL_EVENTEXEC((*eventexec)), SCIP_EVENTHDLRDATA *eventhdlrdata)

const char * SCIPeventhdlrGetName(SCIP_EVENTHDLR *eventhdlr)

SCIP_EVENTHDLRDATA * SCIPeventhdlrGetData(SCIP_EVENTHDLR *eventhdlr)

void SCIPeventhdlrSetData(SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTHDLRDATA *eventhdlrdata)

SCIP_RETCODE SCIPsetEventhdlrFree(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTFREE((*eventfree)))

SCIP_RETCODE SCIPsetEventhdlrExit(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTEXIT((*eventexit)))

SCIP_RETCODE SCIPsetEventhdlrInit(SCIP *scip, SCIP_EVENTHDLR *eventhdlr, SCIP_DECL_EVENTINIT((*eventinit)))

SCIP_RETCODE SCIPcatchEvent(SCIP *scip, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int *filterpos)

SCIP_RETCODE SCIPdropEvent(SCIP *scip, SCIP_EVENTTYPE eventtype, SCIP_EVENTHDLR *eventhdlr, SCIP_EVENTDATA *eventdata, int filterpos)

SCIP_HEUR * SCIPfindHeur(SCIP *scip, const char *name)

const char * SCIPheurGetName(SCIP_HEUR *heur)

#define SCIPfreeBlockMemoryArray(scip, ptr, num)

#define SCIPallocBufferArray(scip, ptr, num)

#define SCIPallocMemory(scip, ptr)

#define SCIPfreeBufferArray(scip, ptr)

#define SCIPallocBlockMemoryArray(scip, ptr, num)

#define SCIPfreeBlockMemory(scip, ptr)

SCIP_Longint SCIPgetMemTotal(SCIP *scip)

#define SCIPallocBlockMemory(scip, ptr)

SCIP_SYNCSTORE * SCIPgetSyncstore(SCIP *scip)

SCIP_SOL * SCIPgetBestSol(SCIP *scip)

SCIP_RETCODE SCIPcreateSol(SCIP *scip, SCIP_SOL **sol, SCIP_HEUR *heur)

SCIP_RETCODE SCIPaddSolFree(SCIP *scip, SCIP_SOL **sol, SCIP_Bool *stored)

int SCIPgetNSols(SCIP *scip)

SCIP_HEUR * SCIPsolGetHeur(SCIP_SOL *sol)

SCIP_RETCODE SCIPcreateOrigSol(SCIP *scip, SCIP_SOL **sol, SCIP_HEUR *heur)

SCIP_RETCODE SCIPgetSolVals(SCIP *scip, SCIP_SOL *sol, int nvars, SCIP_VAR **vars, SCIP_Real *vals)

SCIP_RETCODE SCIPsetSolVals(SCIP *scip, SCIP_SOL *sol, int nvars, SCIP_VAR **vars, SCIP_Real *vals)

SCIP_SOL ** SCIPgetSols(SCIP *scip)

SCIP_Real SCIPgetSolOrigObj(SCIP *scip, SCIP_SOL *sol)

SCIP_RETCODE SCIPinterruptSolve(SCIP *scip)

SCIP_RETCODE SCIPsolve(SCIP *scip)

SCIP_Real SCIPgetPrimalbound(SCIP *scip)

SCIP_Longint SCIPgetNNodes(SCIP *scip)

SCIP_Real SCIPgetDualbound(SCIP *scip)

SCIP_Longint SCIPgetNLPIterations(SCIP *scip)

SCIP_Real SCIPgetSolvingTime(SCIP *scip)

SCIP_Bool SCIPisGE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool SCIPisLE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_RETCODE SCIPvarGetProbvarBound(SCIP_VAR **var, SCIP_Real *bound, SCIP_BOUNDTYPE *boundtype)

SCIP_VARSTATUS SCIPvarGetStatus(SCIP_VAR *var)

SCIP_VARTYPE SCIPvarGetType(SCIP_VAR *var)

SCIP_Real SCIPvarGetUbGlobal(SCIP_VAR *var)

int SCIPvarGetIndex(SCIP_VAR *var)

SCIP_Real SCIPvarGetLbGlobal(SCIP_VAR *var)

int SCIPsnprintf(char *t, int len, const char *s,...)

static const char * paramname[]

memory allocation routines

#define BMSfreeMemory(ptr)

#define BMSallocMemory(ptr)

SCIP_Bool SCIPmessagehdlrIsQuiet(SCIP_MESSAGEHDLR *messagehdlr)

BMS_BLKMEM * SCIPblkmem(SCIP *scip)

const char * SCIPparamGetName(SCIP_PARAM *param)

public methods for managing events

public methods for primal heuristics

public methods for message output

public data structures and miscellaneous methods

public methods for handling parameter settings

public methods for primal CIP solutions

public methods for problem variables

public methods for concurrent solving mode

public methods for problem copies

public methods for event handler plugins and event handlers

public methods for primal heuristic plugins and divesets

public methods for memory management

public methods for message handling

public methods for numerical tolerances

public methods for SCIP parameter handling

public methods for global and local (sub)problems

public methods for solutions

public methods for querying solving statistics

public methods for timing

SCIP_BOUNDSTORE * SCIPsyncdataGetBoundChgs(SCIP_SYNCDATA *syncdata)

void SCIPsyncdataSetUpperbound(SCIP_SYNCDATA *syncdata, SCIP_Real upperbound)

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

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

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

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_Bool SCIPsyncstoreIsInitialized(SCIP_SYNCSTORE *syncstore)

void SCIPsyncdataAddMemTotal(SCIP_SYNCDATA *syncdata, SCIP_Longint memtotal)

SCIP_STATUS SCIPsyncdataGetStatus(SCIP_SYNCDATA *syncdata)

the function declarations for the synchronization store

struct SCIP_ConcSolverTypeData SCIP_CONCSOLVERTYPEDATA

struct SCIP_ConcSolverData SCIP_CONCSOLVERDATA

#define SCIP_EVENTTYPE_SYNC

struct SCIP_EventhdlrData SCIP_EVENTHDLRDATA

enum SCIP_BoundType SCIP_BOUNDTYPE

@ SCIP_PARAMEMPHASIS_DEFAULT

@ SCIP_PARAMEMPHASIS_CPSOLVER

@ SCIP_PARAMEMPHASIS_HARDLP

@ SCIP_PARAMEMPHASIS_FEASIBILITY

@ SCIP_PARAMEMPHASIS_EASYCIP

@ SCIP_PARAMEMPHASIS_COUNTER

@ SCIP_PARAMEMPHASIS_OPTIMALITY

enum SCIP_ParamEmphasis SCIP_PARAMEMPHASIS

enum SCIP_Retcode SCIP_RETCODE

enum SCIP_Status SCIP_STATUS

@ SCIP_VARSTATUS_MULTAGGR


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