Scippy

SCIP

Solving Constraint Integer Programs

Modules | Functions
Primal Heuristics
Public API of SCIP » Core API » Methods for managing plugins

Detailed Description

methods for primal heuristic plugins

Modules

 Special Methods
 methods commonly used by primal heuristics
 

Functions

 SCIP_DECL_SORTPTRCOMP (SCIPheurComp)
 
 SCIP_DECL_SORTPTRCOMP (SCIPheurCompName)
 
SCIP_HEURDATA * SCIPheurGetData (SCIP_HEUR *heur)
 
void SCIPheurSetData (SCIP_HEUR *heur, SCIP_HEURDATA *heurdata)
 
const char * SCIPheurGetName (SCIP_HEUR *heur)
 
const char * SCIPheurGetDesc (SCIP_HEUR *heur)
 
char SCIPheurGetDispchar (SCIP_HEUR *heur)
 
SCIP_HEURTIMING SCIPheurGetTimingmask (SCIP_HEUR *heur)
 
void SCIPheurSetTimingmask (SCIP_HEUR *heur, SCIP_HEURTIMING timingmask)
 
SCIP_Bool SCIPheurUsesSubscip (SCIP_HEUR *heur)
 
int SCIPheurGetPriority (SCIP_HEUR *heur)
 
int SCIPheurGetFreq (SCIP_HEUR *heur)
 
void SCIPheurSetFreq (SCIP_HEUR *heur, int freq)
 
int SCIPheurGetFreqofs (SCIP_HEUR *heur)
 
int SCIPheurGetMaxdepth (SCIP_HEUR *heur)
 
SCIP_Longint SCIPheurGetNCalls (SCIP_HEUR *heur)
 
SCIP_Longint SCIPheurGetNSolsFound (SCIP_HEUR *heur)
 
SCIP_Longint SCIPheurGetNBestSolsFound (SCIP_HEUR *heur)
 
SCIP_Bool SCIPheurIsInitialized (SCIP_HEUR *heur)
 
SCIP_Real SCIPheurGetSetupTime (SCIP_HEUR *heur)
 
SCIP_Real SCIPheurGetTime (SCIP_HEUR *heur)
 
SCIP_DIVESET ** SCIPheurGetDivesets (SCIP_HEUR *heur)
 
int SCIPheurGetNDivesets (SCIP_HEUR *heur)
 
SCIP_RETCODE SCIPincludeHeur (SCIP *scip, const char *name, const char *desc, char dispchar, int priority, int freq, int freqofs, int maxdepth, SCIP_HEURTIMING timingmask, SCIP_Bool usessubscip, SCIP_DECL_HEURCOPY((*heurcopy)), SCIP_DECL_HEURFREE((*heurfree)), SCIP_DECL_HEURINIT((*heurinit)), SCIP_DECL_HEUREXIT((*heurexit)), SCIP_DECL_HEURINITSOL((*heurinitsol)), SCIP_DECL_HEUREXITSOL((*heurexitsol)), SCIP_DECL_HEUREXEC((*heurexec)), SCIP_HEURDATA *heurdata)
 
SCIP_RETCODE SCIPincludeHeurBasic (SCIP *scip, SCIP_HEUR **heur, const char *name, const char *desc, char dispchar, int priority, int freq, int freqofs, int maxdepth, SCIP_HEURTIMING timingmask, SCIP_Bool usessubscip, SCIP_DECL_HEUREXEC((*heurexec)), SCIP_HEURDATA *heurdata)
 
SCIP_RETCODE SCIPsetHeurCopy (SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURCOPY((*heurcopy)))
 
SCIP_RETCODE SCIPsetHeurFree (SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURFREE((*heurfree)))
 
SCIP_RETCODE SCIPsetHeurInit (SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURINIT((*heurinit)))
 
SCIP_RETCODE SCIPsetHeurExit (SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEUREXIT((*heurexit)))
 
SCIP_RETCODE SCIPsetHeurInitsol (SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURINITSOL((*heurinitsol)))
 
SCIP_RETCODE SCIPsetHeurExitsol (SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEUREXITSOL((*heurexitsol)))
 
SCIP_HEUR * SCIPfindHeur (SCIP *scip, const char *name)
 
SCIP_HEUR ** SCIPgetHeurs (SCIP *scip)
 
int SCIPgetNHeurs (SCIP *scip)
 
SCIP_RETCODE SCIPsetHeurPriority (SCIP *scip, SCIP_HEUR *heur, int priority)
 

Function Documentation

◆ SCIP_DECL_SORTPTRCOMP() [1/2]

SCIP_DECL_SORTPTRCOMP ( SCIPheurComp  )

compares two heuristics w. r. to their priority

compares two heuristics w. r. to their delay positions and their priority

Definition at line 41 of file heur.c.

References SCIP_Heur::delaypos, SCIP_Heur::freq, SCIP_Heur::ncalls, NULL, and SCIP_Heur::priority.

◆ SCIP_DECL_SORTPTRCOMP() [2/2]

SCIP_DECL_SORTPTRCOMP ( SCIPheurCompName  )

comparison method for sorting heuristics w.r.t. to their name

Definition at line 65 of file heur.c.

References SCIPheurGetName().

◆ SCIPheurGetData()

SCIP_HEURDATA* SCIPheurGetData ( SCIP_HEUR *  heur)

gets user data of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1165 of file heur.c.

References SCIP_Heur::heurdata, and NULL.

Referenced by addCandSolCyckerlin(), applyRepair(), createNewSol(), createSolFromNLP(), createSolFromSubScipSol(), determineLimits(), executeHeuristic(), reduce_bound(), reduce_boundHopRc(), reduce_daSlackPruneMw(), SCIP_DECL_HEURCOPY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_HEURFREE(), SCIP_DECL_HEURINIT(), SCIP_DECL_HEURINITSOL(), SCIP_DECL_TABLEOUTPUT(), SCIPaddLinearConsToNlpHeurSubNlp(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPapplyZeroobj(), SCIPdeleteSubproblemProximity(), SCIPfindObjHeur(), SCIPgetObjHeur(), SCIPgetStartCandidateHeurSubNlp(), SCIPgetSubScipHeurSubNlp(), SCIPgetVarMappingScip2SubScipHeurSubNlp(), SCIPgetVarMappingSubScip2ScipHeurSubNlp(), SCIPheurPassIndicator(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPheurSyncPassSol(), SCIPinitHeurOptcumulative(), SCIPinitializeHeurListScheduling(), SCIPreoptsolsGetNCheckedsols(), SCIPreoptsolsGetNImprovingsols(), SCIPresolveSolHeurSubNlp(), SCIPStpHeurRecExclude(), SCIPStpHeurRecRun(), SCIPStpHeurTMRun(), SCIPStpHeurTMRunLP(), SCIPupdateStartpointHeurSubNlp(), setupAndSolveSubscip(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipMutation(), setupSubScip(), solveSubNLP(), solveSubproblem(), and storeSolution().

◆ SCIPheurSetData()

void SCIPheurSetData ( SCIP_HEUR *  heur,
SCIP_HEURDATA *  heurdata 
)

sets user data of primal heuristic; user has to free old data in advance!

Parameters
heurprimal heuristic
heurdatanew primal heuristic user data

Definition at line 1175 of file heur.c.

References SCIP_Heur::heurdata, and NULL.

Referenced by presolveTwoOpt(), SCIP_DECL_HEUREXIT(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_HEURFREE(), SCIP_DECL_HEURINIT(), and SCIP_DECL_HEURINITSOL().

◆ SCIPheurGetName()

const char* SCIPheurGetName ( SCIP_HEUR *  heur)

gets name of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1254 of file heur.c.

References SCIP_Heur::name, and NULL.

Referenced by applyVbounds(), createNewSol(), paramsetSetHeuristicsAggressive(), paramsetSetHeuristicsDefault(), paramsetSetHeuristicsOff(), presolve(), presolveRound(), proposeFeasibleSolution(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEURCOPY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_HEURFREE(), SCIP_DECL_HEURINIT(), SCIP_DECL_HEURINITSOL(), SCIP_DECL_SORTPTRCOMP(), SCIPaddLinearConsToNlpHeurSubNlp(), SCIPapplyProximity(), SCIPcopyConcurrentSolvingStats(), SCIPdivesetCreate(), SCIPgetStartCandidateHeurSubNlp(), SCIPgetSubScipHeurSubNlp(), SCIPgetVarMappingScip2SubScipHeurSubNlp(), SCIPgetVarMappingSubScip2ScipHeurSubNlp(), SCIPheurCopyInclude(), SCIPheurPassIndicator(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPheurSyncPassSol(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), SCIPparamsetSetEmphasis(), SCIPparamsetSetToSubscipsOff(), SCIPperformGenericDivingAlgorithm(), SCIPprimalHeuristics(), SCIPprintHeuristicStatistics(), SCIPprintSolutionStatistics(), SCIPreoptAddSol(), SCIPupdateStartpointHeurSubNlp(), soltreeAddSol(), solveComponent(), and updateFailureStatistic().

◆ SCIPheurGetDesc()

const char* SCIPheurGetDesc ( SCIP_HEUR *  heur)

gets description of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1264 of file heur.c.

References SCIP_Heur::desc, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

◆ SCIPheurGetDispchar()

char SCIPheurGetDispchar ( SCIP_HEUR *  heur)

gets display character of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1274 of file heur.c.

References SCIP_Heur::dispchar, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), and SCIP_DECL_DISPOUTPUT().

◆ SCIPheurGetTimingmask()

SCIP_HEURTIMING SCIPheurGetTimingmask ( SCIP_HEUR *  heur)

returns the timing mask of the heuristic

Parameters
heurprimal heuristic

Definition at line 1284 of file heur.c.

References NULL, and SCIP_Heur::timingmask.

◆ SCIPheurSetTimingmask()

void SCIPheurSetTimingmask ( SCIP_HEUR *  heur,
SCIP_HEURTIMING  timingmask 
)

sets new timing mask for heuristic

Parameters
heurprimal heuristic
timingmasknew timing mask of heuristic

Definition at line 1294 of file heur.c.

References NULL, and SCIP_Heur::timingmask.

Referenced by SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_HEURINIT(), and SCIP_DECL_HEURINITSOL().

◆ SCIPheurUsesSubscip()

SCIP_Bool SCIPheurUsesSubscip ( SCIP_HEUR *  heur)

does the heuristic use a secondary SCIP instance?

Parameters
heurprimal heuristic

Definition at line 1305 of file heur.c.

References NULL, and SCIP_Heur::usessubscip.

Referenced by SCIPparamsetSetEmphasis(), and SCIPparamsetSetToSubscipsOff().

◆ SCIPheurGetPriority()

int SCIPheurGetPriority ( SCIP_HEUR *  heur)

gets priority of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1315 of file heur.c.

References NULL, and SCIP_Heur::priority.

Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPprimalHeuristics().

◆ SCIPheurGetFreq()

int SCIPheurGetFreq ( SCIP_HEUR *  heur)

gets frequency of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1339 of file heur.c.

References SCIP_Heur::freq, and NULL.

Referenced by checkParameters(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINIT(), SCIP_DECL_HEURINITSOL(), and SCIPupdateStartpointHeurSubNlp().

◆ SCIPheurSetFreq()

void SCIPheurSetFreq ( SCIP_HEUR *  heur,
int  freq 
)

sets frequency of primal heuristic

Parameters
heurprimal heuristic
freqnew frequency of heuristic

Definition at line 1349 of file heur.c.

References SCIP_Heur::freq, and NULL.

Referenced by SCIP_DECL_HEUREXEC(), SCIPheurSyncPassSol(), and storeSolution().

◆ SCIPheurGetFreqofs()

int SCIPheurGetFreqofs ( SCIP_HEUR *  heur)

gets frequency offset of primal heuristic

Parameters
heurprimal heuristic

Definition at line 1360 of file heur.c.

References SCIP_Heur::freqofs, and NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEURINIT(), and SCIP_DECL_HEURINITSOL().

◆ SCIPheurGetMaxdepth()

int SCIPheurGetMaxdepth ( SCIP_HEUR *  heur)

gets maximal depth level for calling primal heuristic (returns -1, if no depth limit exists)

Parameters
heurprimal heuristic

Definition at line 1370 of file heur.c.

References SCIP_Heur::maxdepth, and NULL.

◆ SCIPheurGetNCalls()

SCIP_Longint SCIPheurGetNCalls ( SCIP_HEUR *  heur)

gets the number of times, the heuristic was called and tried to find a solution

Parameters
heurprimal heuristic

Definition at line 1380 of file heur.c.

References SCIP_Heur::ncalls, and NULL.

Referenced by applyVbounds(), calcNodeLimit(), determineLimits(), SCIP_DECL_HEUREXEC(), SCIPapplyZeroobj(), SCIPprintHeuristicStatistics(), setupAndSolveSubscipCrossover(), and setupSubScip().

◆ SCIPheurGetNSolsFound()

SCIP_Longint SCIPheurGetNSolsFound ( SCIP_HEUR *  heur)

gets the number of primal feasible solutions found by this heuristic

Parameters
heurprimal heuristic

Definition at line 1390 of file heur.c.

References SCIP_Heur::nsolsfound, and NULL.

Referenced by SCIP_DECL_HEUREXEC(), and SCIPprintHeuristicStatistics().

◆ SCIPheurGetNBestSolsFound()

SCIP_Longint SCIPheurGetNBestSolsFound ( SCIP_HEUR *  heur)

gets the number of new best primal feasible solutions found by this heuristic

Parameters
heurprimal heuristic

Definition at line 1400 of file heur.c.

References SCIP_Heur::nbestsolsfound, and NULL.

Referenced by applyVbounds(), determineLimits(), SCIP_DECL_HEUREXEC(), and SCIPprintHeuristicStatistics().

◆ SCIPheurIsInitialized()

SCIP_Bool SCIPheurIsInitialized ( SCIP_HEUR *  heur)

is primal heuristic initialized?

Parameters
heurprimal heuristic

Definition at line 1410 of file heur.c.

References SCIP_Heur::initialized, and NULL.

◆ SCIPheurGetSetupTime()

SCIP_Real SCIPheurGetSetupTime ( SCIP_HEUR *  heur)

gets time in seconds used in this heuristic for setting up for next stages

Parameters
heurprimal heuristic

Definition at line 1432 of file heur.c.

References NULL, SCIPclockGetTime(), and SCIP_Heur::setuptime.

Referenced by SCIPprintHeuristicStatistics().

◆ SCIPheurGetTime()

SCIP_Real SCIPheurGetTime ( SCIP_HEUR *  heur)

gets time in seconds used in this heuristic

Parameters
heurprimal heuristic

Definition at line 1442 of file heur.c.

References SCIP_Heur::heurclock, NULL, and SCIPclockGetTime().

Referenced by SCIPprintHeuristicStatistics().

◆ SCIPheurGetDivesets()

SCIP_DIVESET** SCIPheurGetDivesets ( SCIP_HEUR *  heur)

returns array of divesets of this primal heuristic, or NULL if it has no divesets

Parameters
heurprimal heuristic

Definition at line 1452 of file heur.c.

References SCIP_Heur::divesets, and NULL.

Referenced by SCIPprintHeuristicStatistics().

◆ SCIPheurGetNDivesets()

int SCIPheurGetNDivesets ( SCIP_HEUR *  heur)

returns the number of divesets of this primal heuristic

Parameters
heurprimal heuristic

Definition at line 1462 of file heur.c.

References SCIP_Heur::ndivesets, and NULL.

Referenced by SCIPprintHeuristicStatistics().

◆ SCIPincludeHeur()

SCIP_RETCODE SCIPincludeHeur ( SCIP *  scip,
const char *  name,
const char *  desc,
char  dispchar,
int  priority,
int  freq,
int  freqofs,
int  maxdepth,
SCIP_HEURTIMING  timingmask,
SCIP_Bool  usessubscip,
SCIP_DECL_HEURCOPY((*heurcopy))  ,
SCIP_DECL_HEURFREE((*heurfree))  ,
SCIP_DECL_HEURINIT((*heurinit))  ,
SCIP_DECL_HEUREXIT((*heurexit))  ,
SCIP_DECL_HEURINITSOL((*heurinitsol))  ,
SCIP_DECL_HEUREXITSOL((*heurexitsol))  ,
SCIP_DECL_HEUREXEC((*heurexec))  ,
SCIP_HEURDATA *  heurdata 
)

creates a primal heuristic and includes it in SCIP.

Note
method has all heuristic callbacks as arguments and is thus changed every time a new callback is added in future releases; consider using SCIPincludeHeurBasic() and setter functions if you seek for a method which is less likely to change in future releases
Returns
SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see SCIP_RETCODE for a complete list of error codes.
Precondition
This method can be called if scip is in one of the following stages:
Parameters
scipSCIP data structure
namename of primal heuristic
descdescription of primal heuristic
dispchardisplay character of primal heuristic
prioritypriority of the primal heuristic
freqfrequency for calling primal heuristic
freqofsfrequency offset for calling primal heuristic
maxdepthmaximal depth level to call heuristic at (-1: no limit)
timingmaskpositions in the node solving loop where heuristic should be executed; see definition of SCIP_HEURTIMING for possible values
usessubscipdoes the heuristic use a secondary SCIP instance?
heurdataprimal heuristic data

Definition at line 137 of file scip_heur.c.

References FALSE, Scip::mem, Scip::messagehdlr, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPfindHeur(), SCIPheurCreate(), SCIPsetIncludeHeur(), Scip::set, SCIP_Mem::setmem, and TRUE.

Referenced by SCIPincludeHeurOptcumulative(), and SCIPincludeObjHeur().

◆ SCIPincludeHeurBasic()

SCIP_RETCODE SCIPincludeHeurBasic ( SCIP *  scip,
SCIP_HEUR **  heur,
const char *  name,
const char *  desc,
char  dispchar,
int  priority,
int  freq,
int  freqofs,
int  maxdepth,
SCIP_HEURTIMING  timingmask,
SCIP_Bool  usessubscip,
SCIP_DECL_HEUREXEC((*heurexec))  ,
SCIP_HEURDATA *  heurdata 
)

creates a primal heuristic and includes it in SCIP with its most fundamental callbacks. All non-fundamental (or optional) callbacks as, e. g., init and exit callbacks, will be set to NULL. Optional callbacks can be set via specific setter functions, see SCIPsetHeurCopy(), SCIPsetHeurFree(), SCIPsetHeurInit(), SCIPsetHeurExit(), SCIPsetHeurInitsol(), and SCIPsetHeurExitsol()

Note
if you want to set all callbacks with a single method call, consider using SCIPincludeHeur() instead
Parameters
scipSCIP data structure
heurpointer to primal heuristic
namename of primal heuristic
descdescription of primal heuristic
dispchardisplay character of primal heuristic
prioritypriority of the primal heuristic
freqfrequency for calling primal heuristic
freqofsfrequency offset for calling primal heuristic
maxdepthmaximal depth level to call heuristic at (-1: no limit)
timingmaskpositions in the node solving loop where heuristic should be executed; see definition of SCIP_HEURTIMING for possible values
usessubscipdoes the heuristic use a secondary SCIP instance?
heurdataprimal heuristic data

Definition at line 187 of file scip_heur.c.

References FALSE, Scip::mem, Scip::messagehdlr, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPcheckStage(), SCIPerrorMessage, SCIPfindHeur(), SCIPheurCreate(), SCIPsetIncludeHeur(), Scip::set, SCIP_Mem::setmem, and TRUE.

Referenced by SCIPincludeHeurActconsdiving(), SCIPincludeHeurAlns(), SCIPincludeHeurBound(), SCIPincludeHeurCoefdiving(), SCIPincludeHeurCompletesol(), SCIPincludeHeurConflictdiving(), SCIPincludeHeurCrossover(), SCIPincludeHeurCycGreedy(), SCIPincludeHeurCycKerlin(), SCIPincludeHeurDins(), SCIPincludeHeurDualval(), SCIPincludeHeurFixandinfer(), SCIPincludeHeurFracdiving(), SCIPincludeHeurFuzzyround(), SCIPincludeHeurGuideddiving(), SCIPincludeHeurIndicator(), SCIPincludeHeurInit(), SCIPincludeHeurIntdiving(), SCIPincludeHeurIntshifting(), SCIPincludeHeurLinesearchdiving(), SCIPincludeHeurListScheduling(), SCIPincludeHeurLocalbranching(), SCIPincludeHeurLpface(), SCIPincludeHeurMpec(), SCIPincludeHeurMultistart(), SCIPincludeHeurMutation(), SCIPincludeHeurObjpscostdiving(), SCIPincludeHeurOctane(), SCIPincludeHeurOfins(), SCIPincludeHeurOneopt(), SCIPincludeHeurProximity(), SCIPincludeHeurPscostdiving(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRedsize(), SCIPincludeHeurRens(), SCIPincludeHeurReoptsols(), SCIPincludeHeurRins(), SCIPincludeHeurRootsoldiving(), SCIPincludeHeurRounding(), SCIPincludeHeurShiftandpropagate(), SCIPincludeHeurShifting(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurSubNlp(), SCIPincludeHeurSync(), SCIPincludeHeurTrivial(), SCIPincludeHeurTrivialnegation(), SCIPincludeHeurTrySol(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPincludeHeurVeclendiving(), SCIPincludeHeurZeroobj(), SCIPincludeHeurZirounding(), SCIPStpIncludeHeurAscendPrune(), SCIPStpIncludeHeurLocal(), SCIPStpIncludeHeurPrune(), SCIPStpIncludeHeurRec(), SCIPStpIncludeHeurSlackPrune(), and SCIPStpIncludeHeurTM().

◆ SCIPsetHeurCopy()

SCIP_RETCODE SCIPsetHeurCopy ( SCIP *  scip,
SCIP_HEUR *  heur,
SCIP_DECL_HEURCOPY((*heurcopy))   
)

sets copy method of primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic

Definition at line 232 of file scip_heur.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPheurSetCopy(), and TRUE.

Referenced by SCIPincludeHeurActconsdiving(), SCIPincludeHeurAlns(), SCIPincludeHeurBound(), SCIPincludeHeurCoefdiving(), SCIPincludeHeurCompletesol(), SCIPincludeHeurConflictdiving(), SCIPincludeHeurCrossover(), SCIPincludeHeurCycGreedy(), SCIPincludeHeurCycKerlin(), SCIPincludeHeurDins(), SCIPincludeHeurFixandinfer(), SCIPincludeHeurFracdiving(), SCIPincludeHeurGuideddiving(), SCIPincludeHeurIndicator(), SCIPincludeHeurInit(), SCIPincludeHeurIntdiving(), SCIPincludeHeurIntshifting(), SCIPincludeHeurLinesearchdiving(), SCIPincludeHeurLocalbranching(), SCIPincludeHeurLpface(), SCIPincludeHeurMpec(), SCIPincludeHeurMultistart(), SCIPincludeHeurMutation(), SCIPincludeHeurObjpscostdiving(), SCIPincludeHeurOctane(), SCIPincludeHeurOfins(), SCIPincludeHeurOneopt(), SCIPincludeHeurProximity(), SCIPincludeHeurPscostdiving(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRedsize(), SCIPincludeHeurRens(), SCIPincludeHeurReoptsols(), SCIPincludeHeurRins(), SCIPincludeHeurRootsoldiving(), SCIPincludeHeurRounding(), SCIPincludeHeurShiftandpropagate(), SCIPincludeHeurShifting(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurSubNlp(), SCIPincludeHeurTrivial(), SCIPincludeHeurTrivialnegation(), SCIPincludeHeurTrySol(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPincludeHeurVeclendiving(), SCIPincludeHeurZeroobj(), SCIPincludeHeurZirounding(), SCIPStpIncludeHeurAscendPrune(), SCIPStpIncludeHeurLocal(), SCIPStpIncludeHeurPrune(), SCIPStpIncludeHeurRec(), SCIPStpIncludeHeurSlackPrune(), and SCIPStpIncludeHeurTM().

◆ SCIPsetHeurFree()

SCIP_RETCODE SCIPsetHeurFree ( SCIP *  scip,
SCIP_HEUR *  heur,
SCIP_DECL_HEURFREE((*heurfree))   
)

sets destructor method of primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic

Definition at line 248 of file scip_heur.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPheurSetFree(), and TRUE.

Referenced by SCIPincludeHeurActconsdiving(), SCIPincludeHeurAlns(), SCIPincludeHeurBound(), SCIPincludeHeurCoefdiving(), SCIPincludeHeurCompletesol(), SCIPincludeHeurConflictdiving(), SCIPincludeHeurCrossover(), SCIPincludeHeurCycGreedy(), SCIPincludeHeurCycKerlin(), SCIPincludeHeurDins(), SCIPincludeHeurDualval(), SCIPincludeHeurFixandinfer(), SCIPincludeHeurFracdiving(), SCIPincludeHeurGuideddiving(), SCIPincludeHeurIndicator(), SCIPincludeHeurInit(), SCIPincludeHeurIntdiving(), SCIPincludeHeurLinesearchdiving(), SCIPincludeHeurListScheduling(), SCIPincludeHeurLocalbranching(), SCIPincludeHeurLpface(), SCIPincludeHeurMpec(), SCIPincludeHeurMultistart(), SCIPincludeHeurMutation(), SCIPincludeHeurObjpscostdiving(), SCIPincludeHeurOctane(), SCIPincludeHeurOfins(), SCIPincludeHeurOneopt(), SCIPincludeHeurProximity(), SCIPincludeHeurPscostdiving(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRedsize(), SCIPincludeHeurRens(), SCIPincludeHeurReoptsols(), SCIPincludeHeurRins(), SCIPincludeHeurRootsoldiving(), SCIPincludeHeurRounding(), SCIPincludeHeurShiftandpropagate(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurSubNlp(), SCIPincludeHeurSync(), SCIPincludeHeurTrySol(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPincludeHeurVeclendiving(), SCIPincludeHeurZeroobj(), SCIPincludeHeurZirounding(), SCIPStpIncludeHeurAscendPrune(), SCIPStpIncludeHeurLocal(), SCIPStpIncludeHeurPrune(), SCIPStpIncludeHeurRec(), SCIPStpIncludeHeurSlackPrune(), and SCIPStpIncludeHeurTM().

◆ SCIPsetHeurInit()

SCIP_RETCODE SCIPsetHeurInit ( SCIP *  scip,
SCIP_HEUR *  heur,
SCIP_DECL_HEURINIT((*heurinit))   
)

sets initialization method of primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic

Definition at line 264 of file scip_heur.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPheurSetInit(), and TRUE.

Referenced by SCIPincludeHeurActconsdiving(), SCIPincludeHeurAlns(), SCIPincludeHeurCoefdiving(), SCIPincludeHeurConflictdiving(), SCIPincludeHeurCrossover(), SCIPincludeHeurCycGreedy(), SCIPincludeHeurCycKerlin(), SCIPincludeHeurDualval(), SCIPincludeHeurFracdiving(), SCIPincludeHeurGuideddiving(), SCIPincludeHeurIndicator(), SCIPincludeHeurIntdiving(), SCIPincludeHeurIntshifting(), SCIPincludeHeurLinesearchdiving(), SCIPincludeHeurLocalbranching(), SCIPincludeHeurLpface(), SCIPincludeHeurMultistart(), SCIPincludeHeurMutation(), SCIPincludeHeurObjpscostdiving(), SCIPincludeHeurOctane(), SCIPincludeHeurOneopt(), SCIPincludeHeurProximity(), SCIPincludeHeurPscostdiving(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRens(), SCIPincludeHeurReoptsols(), SCIPincludeHeurRins(), SCIPincludeHeurRootsoldiving(), SCIPincludeHeurRounding(), SCIPincludeHeurShiftandpropagate(), SCIPincludeHeurShifting(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPincludeHeurVeclendiving(), SCIPincludeHeurZeroobj(), SCIPincludeHeurZirounding(), SCIPStpIncludeHeurAscendPrune(), SCIPStpIncludeHeurPrune(), SCIPStpIncludeHeurRec(), SCIPStpIncludeHeurSlackPrune(), and SCIPStpIncludeHeurTM().

◆ SCIPsetHeurExit()

SCIP_RETCODE SCIPsetHeurExit ( SCIP *  scip,
SCIP_HEUR *  heur,
SCIP_DECL_HEUREXIT((*heurexit))   
)

sets deinitialization method of primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic

Definition at line 280 of file scip_heur.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPheurSetExit(), and TRUE.

Referenced by SCIPincludeHeurActconsdiving(), SCIPincludeHeurAlns(), SCIPincludeHeurCoefdiving(), SCIPincludeHeurConflictdiving(), SCIPincludeHeurCrossover(), SCIPincludeHeurDualval(), SCIPincludeHeurFracdiving(), SCIPincludeHeurGuideddiving(), SCIPincludeHeurIntdiving(), SCIPincludeHeurIntshifting(), SCIPincludeHeurLinesearchdiving(), SCIPincludeHeurLpface(), SCIPincludeHeurMultistart(), SCIPincludeHeurMutation(), SCIPincludeHeurObjpscostdiving(), SCIPincludeHeurOctane(), SCIPincludeHeurPscostdiving(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRootsoldiving(), SCIPincludeHeurRounding(), SCIPincludeHeurShiftandpropagate(), SCIPincludeHeurShifting(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurSync(), SCIPincludeHeurTrySol(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPincludeHeurVeclendiving(), SCIPincludeHeurZirounding(), and SCIPStpIncludeHeurRec().

◆ SCIPsetHeurInitsol()

SCIP_RETCODE SCIPsetHeurInitsol ( SCIP *  scip,
SCIP_HEUR *  heur,
SCIP_DECL_HEURINITSOL((*heurinitsol))   
)

sets solving process initialization method of primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic

Definition at line 296 of file scip_heur.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPheurSetInitsol(), and TRUE.

Referenced by SCIPincludeHeurAlns(), SCIPincludeHeurDins(), SCIPincludeHeurDualval(), SCIPincludeHeurIntshifting(), SCIPincludeHeurLpface(), SCIPincludeHeurMpec(), SCIPincludeHeurOneopt(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRounding(), SCIPincludeHeurShifting(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurSubNlp(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPincludeHeurZirounding(), SCIPStpIncludeHeurLocal(), SCIPStpIncludeHeurPrune(), SCIPStpIncludeHeurRec(), and SCIPStpIncludeHeurSlackPrune().

◆ SCIPsetHeurExitsol()

SCIP_RETCODE SCIPsetHeurExitsol ( SCIP *  scip,
SCIP_HEUR *  heur,
SCIP_DECL_HEUREXITSOL((*heurexitsol))   
)

sets solving process deinitialization method of primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic

Definition at line 312 of file scip_heur.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIPcheckStage(), SCIPheurSetExitsol(), and TRUE.

Referenced by SCIPincludeHeurCycGreedy(), SCIPincludeHeurCycKerlin(), SCIPincludeHeurDins(), SCIPincludeHeurDualval(), SCIPincludeHeurLpface(), SCIPincludeHeurMpec(), SCIPincludeHeurOneopt(), SCIPincludeHeurProximity(), SCIPincludeHeurRandrounding(), SCIPincludeHeurRounding(), SCIPincludeHeurSimplerounding(), SCIPincludeHeurSubNlp(), SCIPincludeHeurTwoopt(), SCIPincludeHeurUndercover(), SCIPStpIncludeHeurLocal(), SCIPStpIncludeHeurPrune(), SCIPStpIncludeHeurRec(), and SCIPStpIncludeHeurSlackPrune().

◆ SCIPfindHeur()

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

returns the primal heuristic of the given name, or NULL if not existing

Parameters
scipSCIP data structure
namename of primal heuristic

Definition at line 328 of file scip_heur.c.

References NULL, SCIPsetFindHeur(), and Scip::set.

Referenced by addCandSolCyckerlin(), checkSystemGF2(), constructValidSolution(), extendToCover(), reduce_bound(), reduce_boundHopRc(), reduce_daSlackPruneMw(), SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA(), SCIP_DECL_CONSINIT(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_HEURINITSOL(), SCIP_DECL_TABLEOUTPUT(), SCIPapplyLockFixings(), SCIPcopyConcurrentSolvingStats(), SCIPcreateConcurrent(), SCIPdeleteSubproblemProximity(), SCIPfindObjHeur(), SCIPincludeHeur(), SCIPincludeHeurBasic(), SCIPinitHeurOptcumulative(), SCIPinitializeHeurListScheduling(), SCIPreoptsolsGetNCheckedsols(), SCIPreoptsolsGetNImprovingsols(), SCIPStpHeurRecExclude(), SCIPStpHeurRecRun(), SCIPStpHeurTMRun(), SCIPStpHeurTMRunLP(), setupAndSolveSubscipRapidlearning(), and solveComponent().

◆ SCIPgetHeurs()

SCIP_HEUR** SCIPgetHeurs ( SCIP *  scip)

returns the array of currently available primal heuristics

Parameters
scipSCIP data structure

Definition at line 341 of file scip_heur.c.

References SCIP_Set::heurs, NULL, SCIPsetSortHeurs(), and Scip::set.

Referenced by checkParameters(), SCIP_DECL_DIALOGEXEC(), SCIPcopyConcurrentSolvingStats(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

◆ SCIPgetNHeurs()

int SCIPgetNHeurs ( SCIP *  scip)

returns the number of currently available primal heuristics

Parameters
scipSCIP data structure

Definition at line 354 of file scip_heur.c.

References SCIP_Set::nheurs, NULL, and Scip::set.

Referenced by checkParameters(), SCIP_DECL_DIALOGEXEC(), SCIPcopyConcurrentSolvingStats(), SCIPincludeDialogDefaultFix(), and SCIPincludeDialogDefaultSet().

◆ SCIPsetHeurPriority()

SCIP_RETCODE SCIPsetHeurPriority ( SCIP *  scip,
SCIP_HEUR *  heur,
int  priority 
)

sets the priority of a primal heuristic

Parameters
scipSCIP data structure
heurprimal heuristic
prioritynew priority of the primal heuristic

Definition at line 365 of file scip_heur.c.

References NULL, SCIP_OKAY, SCIPheurSetPriority(), and Scip::set.

Referenced by SCIP_DECL_PARAMCHGD().