SCIP_Primal Struct Reference

Detailed Description

primal data and solution storage

Definition at line 47 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_RATIONAL *	upperboundexact
SCIP_Real	cutoffbound
SCIP_RATIONAL *	cutoffboundexact
SCIP_SOL **	sols
SCIP_SOL **	partialsols
SCIP_SOL **	existingsols
SCIP_SOL *	currentsol
SCIP_SOL *	primalray
int	solssize
int	partialsolssize
int	nsols
int	npartialsols
int	existingsolssize
int	nexistingsols
SCIP_Bool	updateviolations

Field Documentation

nsolsfound

SCIP_Longint SCIP_Primal::nsolsfound

number of primal CIP solutions found up to now

Definition at line 49 of file struct_primal.h.

Referenced by primalAddOrigSol(), primalAddSol(), SCIPcopyConcurrentSolvingStats(), SCIPheurExec(), and SCIPprimalClear().

nlimsolsfound

SCIP_Longint SCIP_Primal::nlimsolsfound

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

Definition at line 50 of file struct_primal.h.

Referenced by primalAddOrigSol(), primalAddSol(), SCIPcopyConcurrentSolvingStats(), SCIPprimalClear(), and SCIPsolveCIP().

nbestsolsfound

SCIP_Longint SCIP_Primal::nbestsolsfound

number of new best primal CIP solutions found up to now

Definition at line 52 of file struct_primal.h.

Referenced by addCurrentSolution(), primalAddSol(), SCIPcopyConcurrentSolvingStats(), SCIPheurExec(), SCIPprimalClear(), SCIPprimalHeuristics(), solveNode(), and solveNodeLP().

nlimbestsolsfound

SCIP_Longint SCIP_Primal::nlimbestsolsfound

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

Definition at line 53 of file struct_primal.h.

Referenced by SCIPprimalClear().

upperbound

SCIP_Real SCIP_Primal::upperbound

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

Definition at line 55 of file struct_primal.h.

Referenced by primalSetCutoffbound(), primalSetUpperbound(), primalSetUpperboundExact(), SCIPnodeFocus(), SCIPprimalClear(), SCIPprimalSetUpperbound(), and SCIPprimalUpperboundIsSol().

upperboundexact

SCIP_RATIONAL* SCIP_Primal::upperboundexact

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

Definition at line 56 of file struct_primal.h.

Referenced by primalAddSol(), primalSetCutoffboundExact(), primalSetUpperboundExact(), and SCIPnodeFocus().

cutoffbound

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 57 of file struct_primal.h.

Referenced by applyBounding(), priceAndCutLoop(), primalSetCutoffbound(), primalSetCutoffboundExact(), propAndSolve(), SCIPnodeFocus(), SCIPpriceLoop(), SCIPprimalClear(), SCIPprimalHeuristics(), SCIPprimalSetCutoffbound(), SCIPsolveCIP(), SCIPtreeEndProbing(), solOfInterest(), solveNode(), and treeBacktrackProbing().

cutoffboundexact

SCIP_RATIONAL* SCIP_Primal::cutoffboundexact

store the exact cutoff bound here, if in exact solving mode

Definition at line 59 of file struct_primal.h.

Referenced by applyBounding(), primalSetCutoffbound(), primalSetCutoffboundExact(), primalSetUpperboundExact(), and solOfInterest().

sols

SCIP_SOL** SCIP_Primal::sols

primal CIP solutions

Definition at line 60 of file struct_primal.h.

Referenced by ensureSolsSize(), primalAddOrigSol(), primalAddSol(), primalExistsOrigSol(), primalExistsSol(), primalSearchOrigSolPos(), primalSearchSolPos(), SCIPprimalAddOrigObjoffset(), SCIPprimalAddOrigObjoffsetExact(), SCIPprimalAddSol(), SCIPprimalClear(), SCIPprimalRetransformSolutions(), SCIPprimalUpdateObjoffset(), SCIPprimalUpdateObjoffsetExact(), SCIPprimalUpperboundIsSol(), SCIPsolveCIP(), and sortPrimalSols().

partialsols

SCIP_SOL** SCIP_Primal::partialsols

partial solutions

Definition at line 61 of file struct_primal.h.

Referenced by ensurePartialsolsSize(), primalAddOrigPartialSol(), and SCIPprimalClear().

existingsols

SCIP_SOL** SCIP_Primal::existingsols

all existing primal solutions (feasible, partial, and infeasible)

Definition at line 62 of file struct_primal.h.

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

currentsol

SCIP_SOL* SCIP_Primal::currentsol

internal solution for temporarily storing the current solution

Definition at line 63 of file struct_primal.h.

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

primalray

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 64 of file struct_primal.h.

Referenced by SCIPprimalClear(), SCIPprimalGetRay(), SCIPprimalUpdateRay(), solveNodeLP(), and updatePrimalRay().

solssize

int SCIP_Primal::solssize

size of sols array

Definition at line 66 of file struct_primal.h.

Referenced by ensureSolsSize().

partialsolssize

int SCIP_Primal::partialsolssize

size of partialsols array

Definition at line 67 of file struct_primal.h.

Referenced by ensurePartialsolsSize().

nsols

int SCIP_Primal::nsols

number of primal CIP solutions stored in sols array

Definition at line 68 of file struct_primal.h.

Referenced by ensureSolsSize(), primalAddOrigSol(), primalAddSol(), primalExistsOrigSol(), primalExistsSol(), primalSearchOrigSolPos(), primalSearchSolPos(), SCIPprimalAddOrigObjoffset(), SCIPprimalAddOrigObjoffsetExact(), SCIPprimalAddSol(), SCIPprimalClear(), SCIPprimalRetransformSolutions(), SCIPprimalUpdateObjoffset(), SCIPprimalUpdateObjoffsetExact(), SCIPprimalUpperboundIsSol(), SCIPsolveCIP(), and sortPrimalSols().

npartialsols

int SCIP_Primal::npartialsols

number of partial solutions stored in partialsol array

Definition at line 69 of file struct_primal.h.

Referenced by ensurePartialsolsSize(), primalAddOrigPartialSol(), and SCIPprimalClear().

existingsolssize

int SCIP_Primal::existingsolssize

size of existingsols array

Definition at line 70 of file struct_primal.h.

Referenced by ensureExistingsolsSize().

nexistingsols

int SCIP_Primal::nexistingsols

number of primal CIP solutions stored in existingsols array

Definition at line 71 of file struct_primal.h.

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

updateviolations

SCIP_Bool SCIP_Primal::updateviolations

marks whether the updating of violations is turned on

Definition at line 73 of file struct_primal.h.

Referenced by SCIPprimalClear(), SCIPprimalSetUpdateViolations(), and SCIPprimalUpdateViolations().