Scippy

    SCIP

    Solving Constraint Integer Programs

    Data Fields
    VarPrio Struct Reference

    Detailed Description

    data structure that can be used for variable prioritization for additional fixings

    Definition at line 498 of file heur_alns.c.

    Data Fields

    SCIP * scip
     
    SCIP_Real * randscores
     
    int * distances
     
    SCIP_Real * redcostscores
     
    SCIP_Real * pscostscores
     
    unsigned int useredcost:1
     
    unsigned int usedistances:1
     
    unsigned int usepscost:1
     

    Field Documentation

    ◆ scip

    SCIP * VarPrio::scip

    SCIP data structure

    Definition at line 500 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), and LNSUnfixVariables().

    ◆ randscores

    SCIP_Real * VarPrio::randscores

    random scores for prioritization

    Definition at line 501 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().

    ◆ distances

    int * VarPrio::distances

    breadth-first distances from already fixed variables

    Definition at line 502 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().

    ◆ redcostscores

    SCIP_Real * VarPrio::redcostscores

    reduced cost scores for fixing a variable to a reference value

    Definition at line 503 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().

    ◆ pscostscores

    SCIP_Real * VarPrio::pscostscores

    pseudocost scores for fixing a variable to a reference value

    Definition at line 504 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().

    ◆ useredcost

    unsigned int VarPrio::useredcost

    should reduced cost scores be used for variable prioritization?

    Definition at line 505 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().

    ◆ usedistances

    unsigned int VarPrio::usedistances

    should distances from fixed variables be used for variable prioritization

    Definition at line 506 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().

    ◆ usepscost

    unsigned int VarPrio::usepscost

    should pseudo cost scores be used for variable prioritization?

    Definition at line 507 of file heur_alns.c.

    Referenced by alnsFixMoreVariables(), alnsUnfixVariables(), LNSFixMoreVariables(), LNSUnfixVariables(), and SCIP_DECL_SORTINDCOMP().