SCIP_Primal Struct Reference

Detailed Description

primal data and solution storage

Definition at line 36 of file struct_primal.h.

#include <struct_primal.h>

Data Fields
SCIP_Longint	nsolsfound
SCIP_Longint	nlimsolsfound
SCIP_Longint	nbestsolsfound
SCIP_Longint	nlimbestsolsfound
SCIP_Real	upperbound
SCIP_Real	cutoffbound
SCIP_SOL **	sols
SCIP_SOL **	existingsols
SCIP_SOL *	currentsol
SCIP_SOL *	primalray
int	solssize
int	nsols
int	existingsolssize
int	nexistingsols

Field Documentation

SCIP_Longint SCIP_Primal::nsolsfound

number of primal CIP solutions found up to now

Definition at line 38 of file struct_primal.h.

Referenced by displayRelevantStats(), primalAddOrigSol(), primalAddSol(), printSolutionStatistics(), SCIPgetNSolsFound(), SCIPheurExec(), SCIPtransformProb(), and transformSols().

SCIP_Longint SCIP_Primal::nlimsolsfound

number of primal CIP solutions respecting the objective limit found up to now

Definition at line 39 of file struct_primal.h.

Referenced by displayRelevantStats(), primalAddOrigSol(), primalAddSol(), printSolutionStatistics(), SCIPgetNLimSolsFound(), and SCIPprintStage().

SCIP_Longint SCIP_Primal::nbestsolsfound

number of new best primal CIP solutions found up to now

Definition at line 41 of file struct_primal.h.

Referenced by primalAddSol(), printSolutionStatistics(), SCIPgetNBestSolsFound(), SCIPheurExec(), and SCIPprimalHeuristics().

SCIP_Longint SCIP_Primal::nlimbestsolsfound

number of new best primal CIP solutions respecting the objective limit found up to now

Definition at line 42 of file struct_primal.h.

SCIP_Real SCIP_Primal::upperbound

upper (primal) bound of CIP: objective value of best solution or user bound

Definition at line 44 of file struct_primal.h.

Referenced by getPrimalbound(), getUpperbound(), primalSetCutoffbound(), primalSetUpperbound(), SCIPprimalSetUpperbound(), and SCIPprimalUpperboundIsSol().

SCIP_Real SCIP_Primal::cutoffbound

upper bound for better primal solutions (if objective value is always integral, cutoffbound is equal to ceil(upperbound) - 1.0 (+eps)

Definition at line 45 of file struct_primal.h.

Referenced by applyBounding(), initSolve(), priceAndCutLoop(), primalSetCutoffbound(), propAndSolve(), SCIPbranchExtern(), SCIPbranchLP(), SCIPbranchPseudo(), SCIPendDive(), SCIPgetAvgDualbound(), SCIPgetAvgLowerbound(), SCIPgetCutoffbound(), SCIPnodeFocus(), SCIPpriceLoop(), SCIPprimalHeuristics(), SCIPprimalSetCutoffbound(), SCIPsolveCIP(), SCIPupdateNodeLowerbound(), and solveNode().

SCIP_SOL** SCIP_Primal::sols

primal CIP solutions

Definition at line 47 of file struct_primal.h.

Referenced by ensureSolsSize(), freeTransform(), presolve(), primalAddOrigSol(), primalAddSol(), primalExistsOrigSol(), primalExistsSol(), primalSearchOrigSolPos(), primalSearchSolPos(), printSolutionStatistics(), SCIPgetBestSol(), SCIPgetSols(), SCIPprimalAddOrigObjoffset(), SCIPprimalAddSol(), SCIPprimalRetransformSolutions(), SCIPprimalUpdateObjoffset(), SCIPprimalUpperboundIsSol(), SCIPsolveCIP(), and SCIPtransformProb().

SCIP_SOL** SCIP_Primal::existingsols

all existing primal solutions (feasible and infeasible)

Definition at line 48 of file struct_primal.h.

Referenced by ensureExistingsolsSize(), SCIPprimalAddOrigObjoffset(), SCIPprimalSolCreated(), SCIPprimalSolFreed(), and SCIPprimalUpdateVarObj().

SCIP_SOL* SCIP_Primal::currentsol

internal solution for temporarily storing the current solution

Definition at line 49 of file struct_primal.h.

Referenced by primalLinkCurrentSol(), SCIPprimalAddCurrentSol(), and SCIPprimalTryCurrentSol().

SCIP_SOL* SCIP_Primal::primalray

solution representing the primal ray for (infeasible or) unbounded problems; warning: this does not have to be a feasible solution

Definition at line 50 of file struct_primal.h.

Referenced by SCIPgetPrimalRayVal(), SCIPhasPrimalRay(), solveNodeLP(), and updatePrimalRay().

int SCIP_Primal::solssize

size of sols array

Definition at line 52 of file struct_primal.h.

Referenced by ensureSolsSize().

int SCIP_Primal::nsols

number of primal CIP solutions stored in sols array

Definition at line 53 of file struct_primal.h.

Referenced by ensureSolsSize(), freeTransform(), presolve(), primalAddOrigSol(), primalAddSol(), primalExistsOrigSol(), primalExistsSol(), primalSearchOrigSolPos(), primalSearchSolPos(), printSolutionStatistics(), SCIPgetBestSol(), SCIPgetNSols(), SCIPprimalAddOrigObjoffset(), SCIPprimalAddSol(), SCIPprimalRetransformSolutions(), SCIPprimalUpdateObjoffset(), SCIPprimalUpperboundIsSol(), SCIPsolveCIP(), SCIPstoreSolutionGap(), and SCIPtransformProb().

int SCIP_Primal::existingsolssize

size of existingsols array

Definition at line 54 of file struct_primal.h.

Referenced by ensureExistingsolsSize().

int SCIP_Primal::nexistingsols

number of primal CIP solutions stored in existingsols array

Definition at line 55 of file struct_primal.h.

Referenced by ensureExistingsolsSize(), SCIPprimalAddOrigObjoffset(), SCIPprimalSolCreated(), SCIPprimalSolFreed(), and SCIPprimalUpdateVarObj().