scip_heur.h
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38 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
64 * callback is added in future releases; consider using SCIPincludeHeurBasic() and setter functions
67 * @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
84 SCIP_HEURTIMING timingmask, /**< positions in the node solving loop where heuristic should be executed;
87 SCIP_DECL_HEURCOPY ((*heurcopy)), /**< copy method of primal heuristic or NULL if you don't want to copy your plugin into sub-SCIPs */
91 SCIP_DECL_HEURINITSOL ((*heurinitsol)), /**< solving process initialization method of primal heuristic */
92 SCIP_DECL_HEUREXITSOL ((*heurexitsol)), /**< solving process deinitialization method of primal heuristic */
100 * Optional callbacks can be set via specific setter functions, see SCIPsetHeurCopy(), SCIPsetHeurFree(),
103 * @note if you want to set all callbacks with a single method call, consider using SCIPincludeHeur() instead
116 SCIP_HEURTIMING timingmask, /**< positions in the node solving loop where heuristic should be executed;
128 SCIP_DECL_HEURCOPY ((*heurcopy)) /**< copy method of primal heuristic or NULL if you don't want to copy your plugin into sub-SCIPs */
160 SCIP_DECL_HEURINITSOL ((*heurinitsol)) /**< solving process initialization method of primal heuristic */
168 SCIP_DECL_HEUREXITSOL ((*heurexitsol)) /**< solving process deinitialization method of primal heuristic */
205 /** create a diving set associated with a primal heuristic. The primal heuristic needs to be included
206 * before this method can be called. The diveset is installed in the array of divesets of the heuristic
209 * @return \ref SCIP_OKAY is returned if everything worked. otherwise a suitable error code is passed. see \ref
219 SCIP_DIVESET** diveset, /**< pointer to created diving heuristic settings, or NULL if not needed */
221 const char* name, /**< name for the diveset, or NULL if the name of the heuristic should be used */
224 SCIP_Real maxlpiterquot, /**< maximal fraction of diving LP iterations compared to node LP iterations */
225 SCIP_Real maxdiveubquot, /**< maximal quotient (curlowerbound - lowerbound)/(cutoffbound - lowerbound)
227 SCIP_Real maxdiveavgquot, /**< maximal quotient (curlowerbound - lowerbound)/(avglowerbound - lowerbound)
229 SCIP_Real maxdiveubquotnosol, /**< maximal UBQUOT when no solution was found yet (0.0: no limit) */
230 SCIP_Real maxdiveavgquotnosol,/**< maximal AVGQUOT when no solution was found yet (0.0: no limit) */
231 SCIP_Real lpresolvedomchgquot,/**< percentage of immediate domain changes during probing to trigger LP resolve */
232 int lpsolvefreq, /**< LP solve frequency for (0: only if enough domain reductions are found by propagation)*/
236 SCIP_Bool onlylpbranchcands, /**< should only LP branching candidates be considered instead of the slower but
238 SCIP_Bool ispublic, /**< is this dive set publicly available (ie., can be used by other primal heuristics?) */
239 SCIP_Bool specificsos1score, /**< should SOS1 variables be scored by the diving heuristics specific score function;
241 SCIP_DECL_DIVESETGETSCORE((*divesetgetscore)), /**< method for candidate score and rounding direction */
242 SCIP_DECL_DIVESETAVAILABLE((*divesetavailable)) /**< callback to check availability of dive set at the current stage, or NULL if always available */
250 SCIP_Bool* available /**< pointer to store if the diving can run at the current solving stage */
SCIP_RETCODE SCIPsetHeurExitsol(SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEUREXITSOL((*heurexitsol)))
Definition: scip_heur.c:242
timing definitions for SCIP
Definition: struct_scip.h:68
SCIP_RETCODE SCIPsetHeurExit(SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEUREXIT((*heurexit)))
Definition: scip_heur.c:210
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)
Definition: scip_heur.c:67
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)
Definition: scip_heur.c:117
type definitions for return codes for SCIP methods
SCIP_RETCODE SCIPcreateDiveset(SCIP *scip, SCIP_DIVESET **diveset, SCIP_HEUR *heur, const char *name, SCIP_Real minreldepth, SCIP_Real maxreldepth, SCIP_Real maxlpiterquot, SCIP_Real maxdiveubquot, SCIP_Real maxdiveavgquot, SCIP_Real maxdiveubquotnosol, SCIP_Real maxdiveavgquotnosol, SCIP_Real lpresolvedomchgquot, int lpsolvefreq, int maxlpiterofs, unsigned int initialseed, SCIP_Bool backtrack, SCIP_Bool onlylpbranchcands, SCIP_Bool ispublic, SCIP_Bool specificsos1score, SCIP_DECL_DIVESETGETSCORE((*divesetgetscore)), SCIP_DECL_DIVESETAVAILABLE((*divesetavailable)))
Definition: scip_heur.c:318
SCIP_RETCODE SCIPsetHeurPriority(SCIP *scip, SCIP_HEUR *heur, int priority)
Definition: scip_heur.c:293
SCIP_RETCODE SCIPsetHeurInitsol(SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURINITSOL((*heurinitsol)))
Definition: scip_heur.c:226
SCIP_RETCODE SCIPsetHeurFree(SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURFREE((*heurfree)))
Definition: scip_heur.c:178
type definitions for primal heuristics
type definitions for SCIP's main datastructure
type definitions for problem variables
Definition: struct_heur.h:97
Definition: struct_heur.h:67
SCIP_RETCODE SCIPisDivesetAvailable(SCIP *scip, SCIP_DIVESET *diveset, SCIP_Bool *available)
Definition: scip_heur.c:363
SCIP_RETCODE SCIPsetHeurInit(SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURINIT((*heurinit)))
Definition: scip_heur.c:194
result codes for SCIP callback methods
SCIP_RETCODE SCIPsetHeurCopy(SCIP *scip, SCIP_HEUR *heur, SCIP_DECL_HEURCOPY((*heurcopy)))
Definition: scip_heur.c:162
common defines and data types used in all packages of SCIP
Definition: objbenders.h:43