presol_stuffing.c
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36/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
59#define PRESOL_PRIORITY -100 /**< priority of the presolver (>= 0: before, < 0: after constraint handlers) */
60#define PRESOL_MAXROUNDS 0 /**< maximal number of presolving rounds the presolver participates in (-1: no limit) */
61#define PRESOL_TIMING SCIP_PRESOLTIMING_EXHAUSTIVE /* timing of the presolver (fast, medium, or exhaustive) */
69};
130 && SCIPvarGetNLocksUpType(SCIPmatrixGetVar(matrix, col), SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNUplocks(matrix, col)
131 && SCIPvarGetNLocksDownType(SCIPmatrixGetVar(matrix, col), SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNDownlocks(matrix, col) )
170 && (SCIPvarGetNLocksUpType(var, SCIP_LOCKTYPE_MODEL) + SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL)) == 1
290 assert((SCIPvarGetNLocksUpType(var, SCIP_LOCKTYPE_MODEL) + SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL)) == 1);
370 if( (SCIPgetStage(scip) != SCIP_STAGE_PRESOLVING) || SCIPinProbing(scip) || SCIPisNLPEnabled(scip) )
429 && SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNDownlocks(matrix, v));
456 && SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNDownlocks(matrix, v));
505 SCIP_CALL( SCIPincludePresolBasic(scip, &presol, PRESOL_NAME, PRESOL_DESC, PRESOL_PRIORITY, PRESOL_MAXROUNDS,
SCIP_RETCODE SCIPincludePresolStuffing(SCIP *scip)
Definition: presol_stuffing.c:498
SCIP_RETCODE SCIPsetPresolCopy(SCIP *scip, SCIP_PRESOL *presol, SCIP_DECL_PRESOLCOPY((*presolcopy)))
Definition: scip_presol.c:140
SCIP_RETCODE SCIPincludePresolBasic(SCIP *scip, SCIP_PRESOL **presolptr, const char *name, const char *desc, int priority, int maxrounds, SCIP_PRESOLTIMING timing, SCIP_DECL_PRESOLEXEC((*presolexec)), SCIP_PRESOLDATA *presoldata)
Definition: scip_presol.c:105
SCIP_Bool SCIPisGE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:497
SCIP_Bool SCIPisLE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:471
SCIP_Bool SCIPisGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:484
SCIP_Bool SCIPisLT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:458
int SCIPvarGetNLocksUpType(SCIP_VAR *var, SCIP_LOCKTYPE locktype)
Definition: var.c:3353
SCIP_RETCODE SCIPfixVar(SCIP *scip, SCIP_VAR *var, SCIP_Real fixedval, SCIP_Bool *infeasible, SCIP_Bool *fixed)
Definition: scip_var.c:8276
int SCIPvarGetNLocksDownType(SCIP_VAR *var, SCIP_LOCKTYPE locktype)
Definition: var.c:3295
void SCIPsortRealRealIntInt(SCIP_Real *realarray1, SCIP_Real *realarray2, int *intarray1, int *intarray2, int len)
int * SCIPmatrixGetColIdxPtr(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1580
int SCIPmatrixGetRowNNonzs(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1708
int SCIPmatrixGetColNDownlocks(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1648
int SCIPmatrixGetColNNonzs(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1592
SCIP_Bool SCIPmatrixIsRowRhsInfinity(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1766
int SCIPmatrixGetColNUplocks(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1636
SCIP_Real SCIPmatrixGetRowLhs(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1742
SCIP_Real * SCIPmatrixGetRowValPtr(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1684
SCIP_RETCODE SCIPmatrixCreate(SCIP *scip, SCIP_MATRIX **matrixptr, SCIP_Bool onlyifcomplete, SCIP_Bool *initialized, SCIP_Bool *complete, SCIP_Bool *infeasible, int *naddconss, int *ndelconss, int *nchgcoefs, int *nchgbds, int *nfixedvars)
Definition: matrix.c:454
int * SCIPmatrixGetRowIdxPtr(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1696
memory allocation routines
Definition: objbenders.h:44
static SCIP_DECL_PRESOLEXEC(presolExecStuffing)
Definition: presol_stuffing.c:360
static SCIP_DECL_PRESOLCOPY(presolCopyStuffing)
Definition: presol_stuffing.c:346
static SCIP_RETCODE singletonColumnStuffing(SCIP *scip, SCIP_MATRIX *matrix, FIXINGDIRECTION *varstofix, int *nfixings)
Definition: presol_stuffing.c:78
fix singleton continuous variables
public methods for matrix
public methods for message output
methods for sorting joint arrays of various types
public methods for presolvers
public methods for problem variables
general public methods
public methods for memory management
public methods for message handling
public methods for nonlinear relaxation
public methods for numerical tolerances
public methods for presolving plugins
public methods for variable pricer plugins
public methods for global and local (sub)problems
public methods for the probing mode
public methods for SCIP variables
Definition: struct_matrix.h:48
Definition: struct_presol.h:47
Definition: struct_var.h:208
Definition: struct_scip.h:70