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SCIP Doxygen Documentation: Branching Rules

methods for branching rule plugins

compares two branching rules w. r. to their priority

Definition at line 1220 of file branch.c.

◆ SCIP_DECL_SORTPTRCOMP() [2/2] SCIP_DECL_SORTPTRCOMP ( SCIPbranchruleCompName ) ◆ SCIPbranchruleGetData()

gets user data of branching rule

Parameters: branchrule branching rule

Definition at line 1849 of file branch.c.

References SCIP_Branchrule::branchruledata, and NULL.

Referenced by applyBdchgs(), branch(), execRelpscost(), SCIP_DECL_BRANCHCOPY(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIP_DECL_BRANCHEXIT(), SCIP_DECL_BRANCHEXITSOL(), SCIP_DECL_BRANCHFREE(), SCIP_DECL_BRANCHINIT(), SCIP_DECL_BRANCHINITSOL(), SCIPfindObjBranchrule(), SCIPgetObjBranchrule(), SCIPgetVanillafullstrongData(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), selectBranchVar(), and selectVarMultAggrBranching().

◆ SCIPbranchruleSetData() ◆ SCIPbranchruleGetName()

gets name of branching rule

Parameters: branchrule branching rule

Definition at line 1971 of file branch.c.

References SCIP_Branchrule::name, and NULL.

Referenced by branch(), SCIP_DECL_BRANCHCOPY(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_BRANCHEXECPS(), SCIP_DECL_BRANCHEXITSOL(), SCIP_DECL_BRANCHFREE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_SORTPTRCOMP(), SCIPbranchruleCopyInclude(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), and SCIPprintBranchruleStatistics().

◆ SCIPbranchruleGetDesc() ◆ SCIPbranchruleGetPriority() ◆ SCIPbranchruleGetMaxdepth() ◆ SCIPbranchruleGetMaxbounddist() ◆ SCIPbranchruleGetSetupTime() ◆ SCIPbranchruleGetTime() ◆ SCIPbranchruleGetNLPCalls() ◆ SCIPbranchruleGetNExternCalls() ◆ SCIPbranchruleGetNPseudoCalls() ◆ SCIPbranchruleGetNCutoffs() ◆ SCIPbranchruleGetNCutsFound() ◆ SCIPbranchruleGetNConssFound() ◆ SCIPbranchruleGetNDomredsFound() ◆ SCIPbranchruleGetNChildren() ◆ SCIPbranchruleIsInitialized() ◆ SCIPincludeBranchrule() SCIP_RETCODE SCIPincludeBranchrule ( SCIP * scip, const char * name, const char * desc, int priority, int maxdepth, SCIP_Real maxbounddist, SCIP_DECL_BRANCHCOPY((*branchcopy)) , SCIP_DECL_BRANCHFREE((*branchfree)) , SCIP_DECL_BRANCHINIT((*branchinit)) , SCIP_DECL_BRANCHEXIT((*branchexit)) , SCIP_DECL_BRANCHINITSOL((*branchinitsol)) , SCIP_DECL_BRANCHEXITSOL((*branchexitsol)) , SCIP_DECL_BRANCHEXECLP((*branchexeclp)) , SCIP_DECL_BRANCHEXECEXT((*branchexecext)) , SCIP_DECL_BRANCHEXECPS((*branchexecps)) , SCIP_BRANCHRULEDATA * branchruledata )

creates a branching rule and includes it in SCIP

Note: method has all branching rule callbacks as arguments and is thus changed every time a new callback is added in future releases; consider using SCIPincludeBranchruleBasic() and setter functions if you seek for a method which is less likely to change in future releases

creates a branching rule and includes it in SCIP

Precondition

This method can be called if SCIP is in one of the following stages:

Note: method has all branching rule callbacks as arguments and is thus changed every time a new callback is added in future releases; consider using SCIPincludeBranchruleBasic() and setter functions if you seek for a method which is less likely to change in future releases

Parameters: scip SCIP data structure name name of branching rule desc description of branching rule priority priority of the branching rule maxdepth maximal depth level, up to which this branching rule should be used (or -1) maxbounddist maximal relative distance from current node's dual bound to primal bound compared to best node's dual bound for applying branching rule (0.0: only on current best node, 1.0: on all nodes) branchruledata branching rule data

Definition at line 71 of file scip_branch.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPbranchruleCreate(), SCIPcheckStage(), SCIPerrorMessage, SCIPfindBranchrule(), SCIPsetIncludeBranchrule(), and TRUE.

Referenced by SCIPincludeObjBranchrule().

◆ SCIPincludeBranchruleBasic()

creates a branching rule and includes it in SCIP. All non-fundamental (or optional) callbacks will be set to NULL. Optional callbacks can be set via specific setter functions, see SCIPsetBranchruleInit(), SCIPsetBranchruleExit(), SCIPsetBranchruleCopy(), SCIPsetBranchruleFree(), SCIPsetBranchruleInitsol(), SCIPsetBranchruleExitsol(), SCIPsetBranchruleExecLp(), SCIPsetBranchruleExecExt(), and SCIPsetBranchruleExecPs().

Note: if you want to set all callbacks with a single method call, consider using SCIPincludeBranchrule() instead

Precondition

This method can be called if SCIP is in one of the following stages:

Note: if you want to set all callbacks with a single method call, consider using SCIPincludeBranchrule() instead

Parameters: scip SCIP data structure branchruleptr pointer to branching rule, or NULL name name of branching rule desc description of branching rule priority priority of the branching rule maxdepth maximal depth level, up to which this branching rule should be used (or -1) maxbounddist maximal relative distance from current node's dual bound to primal bound compared to best node's dual bound for applying branching rule (0.0: only on current best node, 1.0: on all nodes) branchruledata branching rule data

Definition at line 123 of file scip_branch.c.

References FALSE, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPbranchruleCreate(), SCIPcheckStage(), SCIPerrorMessage, SCIPfindBranchrule(), SCIPsetIncludeBranchrule(), and TRUE.

◆ SCIPsetBranchruleCopy()

sets copy method of branching rule

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 160 of file scip_branch.c.

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

◆ SCIPsetBranchruleFree()

sets destructor method of branching rule

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 176 of file scip_branch.c.

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

Referenced by SCIPincludeBranchruleAllfullstrong(), SCIPincludeBranchruleCloud(), SCIPincludeBranchruleDistribution(), SCIPincludeBranchruleFullstrong(), SCIPincludeBranchruleGomory(), SCIPincludeBranchruleInference(), SCIPincludeBranchruleLookahead(), SCIPincludeBranchruleMultAggr(), SCIPincludeBranchrulePscost(), SCIPincludeBranchruleRandom(), SCIPincludeBranchruleRelpscost(), SCIPincludeBranchruleStrongcoloring(), and SCIPincludeBranchruleVanillafullstrong().

◆ SCIPsetBranchruleInit()

sets initialization method of branching rule

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 192 of file scip_branch.c.

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

Referenced by SCIPincludeBranchruleAllfullstrong(), SCIPincludeBranchruleCloud(), SCIPincludeBranchruleFullstrong(), SCIPincludeBranchruleLookahead(), SCIPincludeBranchruleMultAggr(), SCIPincludeBranchrulePscost(), SCIPincludeBranchruleRandom(), SCIPincludeBranchruleStrongcoloring(), and SCIPincludeBranchruleVanillafullstrong().

◆ SCIPsetBranchruleExit()

sets deinitialization method of branching rule

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 208 of file scip_branch.c.

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

Referenced by SCIPincludeBranchruleFullstrong(), SCIPincludeBranchruleLookahead(), SCIPincludeBranchruleMultAggr(), SCIPincludeBranchruleRandom(), SCIPincludeBranchruleStrongcoloring(), and SCIPincludeBranchruleVanillafullstrong().

◆ SCIPsetBranchruleInitsol() ◆ SCIPsetBranchruleExitsol() ◆ SCIPsetBranchruleExecLp()

sets branching execution method for fractional LP solutions

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 256 of file scip_branch.c.

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

◆ SCIPsetBranchruleExecExt()

sets branching execution method for external candidates

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 272 of file scip_branch.c.

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

Referenced by SCIPincludeBranchruleInference(), SCIPincludeBranchruleLeastinf(), SCIPincludeBranchruleMostinf(), SCIPincludeBranchruleNodereopt(), SCIPincludeBranchrulePscost(), and SCIPincludeBranchruleRandom().

◆ SCIPsetBranchruleExecPs()

sets branching execution method for not completely fixed pseudo solutions

Parameters: scip SCIP data structure branchrule branching rule

Definition at line 288 of file scip_branch.c.

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

Referenced by SCIPincludeBranchruleAllfullstrong(), SCIPincludeBranchruleColoring(), SCIPincludeBranchruleInference(), SCIPincludeBranchruleNodereopt(), and SCIPincludeBranchruleRandom().

◆ SCIPfindBranchrule()

returns the branching rule of the given name, or NULL if not existing

Parameters: scip SCIP data structure name name of branching rule

Definition at line 304 of file scip_branch.c.

References NULL, SCIPsetFindBranchrule(), and SCIPsetSortBranchrules().

Referenced by applyBdchgs(), applyRepair(), displayRelevantStats(), doSolveSubMIP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIPapplyRedSize(), SCIPexecRelpscostBranching(), SCIPfindObjBranchrule(), SCIPgetVanillafullstrongData(), SCIPincludeBranchrule(), SCIPincludeBranchruleBasic(), SCIPselectBranchVarPscost(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPsetCommonSubscipParams(), selectVarMultAggrBranching(), setSubscipParameters(), setupAndSolve(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipMutation(), setupSCIPparamsStage3(), setupSubproblem(), setupSubScip(), solveCoveringProblem(), wrapperDins(), and wrapperRins().

◆ SCIPgetBranchrules() ◆ SCIPgetNBranchrules() int SCIPgetNBranchrules ( SCIP * scip ) ◆ SCIPsetBranchrulePriority() ◆ SCIPsetBranchruleMaxdepth()

sets maximal depth level, up to which this branching rule should be used (-1 for no limit)

Parameters: scip SCIP data structure branchrule branching rule maxdepth new maxdepth of the branching rule

Definition at line 356 of file scip_branch.c.

References NULL, SCIP_OKAY, and SCIPbranchruleSetMaxdepth().

◆ SCIPsetBranchruleMaxbounddist()

sets maximal relative distance from current node's dual bound to primal bound for applying branching rule

Parameters: scip SCIP data structure branchrule branching rule maxbounddist new maxbounddist of the branching rule

Definition at line 371 of file scip_branch.c.

References NULL, SCIP_OKAY, and SCIPbranchruleSetMaxbounddist().

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