Scippy

    SCIP

    Solving Constraint Integer Programs

    Data Fields
    PERSISTENTDATA Struct Reference

    Detailed Description

    The data that is preserved over multiple runs of the branching rule.

    Definition at line 979 of file branch_lookahead.c.

    Data Fields

    BRANCHINGDECISION * olddecision
     
    SCIP_Longint oldnnodelpiterations
     
    SCIP_Longint oldnnodelps
     
    SCIP_Longint oldntotalnodes
     
    SCIP_Longint * lastbranchid
     
    SCIP_Longint * lastbranchnlps
     
    SCIP_Real * lastbranchlpobjval
     
    BRANCHINGRESULTDATA ** lastbranchupres
     
    BRANCHINGRESULTDATA ** lastbranchdownres
     
    int restartindex
     
    int nvars
     

    Field Documentation

    ◆ olddecision

    BRANCHINGDECISION* PERSISTENTDATA::olddecision

    The previous decision that gets used for the case that in the previous run only non-violating implicit binary constraints were added.

    Definition at line 981 of file branch_lookahead.c.

    Referenced by isUsePreviousResult(), and selectVarStart().

    ◆ oldnnodelpiterations

    SCIP_Longint PERSISTENTDATA::oldnnodelpiterations

    node LP iterations when previous branching decision was stored

    Definition at line 983 of file branch_lookahead.c.

    Referenced by isUsePreviousResult(), and selectVarStart().

    ◆ oldnnodelps

    SCIP_Longint PERSISTENTDATA::oldnnodelps

    node LPs when previous branching decision was stored

    Definition at line 984 of file branch_lookahead.c.

    Referenced by isUsePreviousResult(), and selectVarStart().

    ◆ oldntotalnodes

    SCIP_Longint PERSISTENTDATA::oldntotalnodes

    node at which previous branching decision was stored

    Definition at line 985 of file branch_lookahead.c.

    Referenced by isUsePreviousResult(), and selectVarStart().

    ◆ lastbranchid

    SCIP_Longint* PERSISTENTDATA::lastbranchid

    The node id at which the var was last branched on (for a given branching var).

    Definition at line 986 of file branch_lookahead.c.

    Referenced by freePersistent(), isUseOldBranching(), and updateOldBranching().

    ◆ lastbranchnlps

    SCIP_Longint* PERSISTENTDATA::lastbranchnlps

    The number of (non-probing) LPs that where solved when the var was last branched on.

    Definition at line 988 of file branch_lookahead.c.

    Referenced by freePersistent(), getOldBranching(), isUseOldBranching(), and updateOldBranching().

    ◆ lastbranchlpobjval

    SCIP_Real* PERSISTENTDATA::lastbranchlpobjval

    The lp objval at which var was last branched on.

    Definition at line 990 of file branch_lookahead.c.

    Referenced by freePersistent(), getOldBranching(), and updateOldBranching().

    ◆ lastbranchupres

    BRANCHINGRESULTDATA** PERSISTENTDATA::lastbranchupres

    The result of the last up branching for a given var.

    Definition at line 991 of file branch_lookahead.c.

    Referenced by freePersistent(), getOldBranching(), and updateOldBranching().

    ◆ lastbranchdownres

    BRANCHINGRESULTDATA** PERSISTENTDATA::lastbranchdownres

    The result of the last down branching for a given var.

    Definition at line 992 of file branch_lookahead.c.

    Referenced by freePersistent(), getOldBranching(), and updateOldBranching().

    ◆ restartindex

    int PERSISTENTDATA::restartindex

    The index at which the iteration over the number of candidates starts.

    Definition at line 993 of file branch_lookahead.c.

    Referenced by selectVarRecursive().

    ◆ nvars

    int PERSISTENTDATA::nvars

    The number of variables that can be stored in the arrays.

    Definition at line 994 of file branch_lookahead.c.

    Referenced by freePersistent().