presol_stuffing.c
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27 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
50 #define PRESOL_PRIORITY -100 /**< priority of the presolver (>= 0: before, < 0: after constraint handlers) */
51 #define PRESOL_MAXROUNDS 0 /**< maximal number of presolving rounds the presolver participates in (-1: no limit) */
52 #define PRESOL_TIMING SCIP_PRESOLTIMING_EXHAUSTIVE /* timing of the presolver (fast, medium, or exhaustive) */
121 && SCIPvarGetNLocksUpType(SCIPmatrixGetVar(matrix, col), SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNUplocks(matrix, col)
122 && SCIPvarGetNLocksDownType(SCIPmatrixGetVar(matrix, col), SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNDownlocks(matrix, col) )
161 && (SCIPvarGetNLocksUpType(var, SCIP_LOCKTYPE_MODEL) + SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL)) == 1
281 assert((SCIPvarGetNLocksUpType(var, SCIP_LOCKTYPE_MODEL) + SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL)) == 1);
361 if( (SCIPgetStage(scip) != SCIP_STAGE_PRESOLVING) || SCIPinProbing(scip) || SCIPisNLPEnabled(scip) )
420 && SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNDownlocks(matrix, v));
447 && SCIPvarGetNLocksDownType(var, SCIP_LOCKTYPE_MODEL) == SCIPmatrixGetColNDownlocks(matrix, v));
496 SCIP_CALL( SCIPincludePresolBasic(scip, &presol, PRESOL_NAME, PRESOL_DESC, PRESOL_PRIORITY, PRESOL_MAXROUNDS,
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:96
Definition: struct_presol.h:37
Definition: type_result.h:33
int SCIPvarGetNLocksDownType(SCIP_VAR *var, SCIP_LOCKTYPE locktype)
Definition: var.c:3289
Definition: struct_scip.h:59
SCIP_RETCODE SCIPincludePresolStuffing(SCIP *scip)
Definition: presol_stuffing.c:489
public methods for memory management
static SCIP_DECL_PRESOLEXEC(presolExecStuffing)
Definition: presol_stuffing.c:351
int SCIPvarGetNLocksUpType(SCIP_VAR *var, SCIP_LOCKTYPE locktype)
Definition: var.c:3347
Definition: type_result.h:49
SCIP_Bool SCIPisGE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:490
Definition: struct_var.h:198
fix singleton continuous variables
public methods for presolving plugins
public methods for problem variables
public methods for SCIP variables
static SCIP_DECL_PRESOLCOPY(presolCopyStuffing)
Definition: presol_stuffing.c:337
public methods for numerical tolerances
void SCIPsortRealRealIntInt(SCIP_Real *realarray1, SCIP_Real *realarray2, int *intarray1, int *intarray2, int len)
int SCIPmatrixGetRowNNonzs(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1668
SCIP_Real SCIPmatrixGetRowLhs(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1702
Definition: type_result.h:35
SCIP_Bool SCIPisLT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:451
int * SCIPmatrixGetRowIdxPtr(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1656
Definition: type_retcode.h:33
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:445
SCIP_Real * SCIPmatrixGetRowValPtr(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1644
int * SCIPmatrixGetColIdxPtr(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1540
Definition: type_set.h:40
Definition: struct_matrix.h:38
SCIP_RETCODE SCIPfixVar(SCIP *scip, SCIP_VAR *var, SCIP_Real fixedval, SCIP_Bool *infeasible, SCIP_Bool *fixed)
Definition: scip_var.c:8273
public methods for matrix
public methods for variable pricer plugins
static SCIP_RETCODE singletonColumnStuffing(SCIP *scip, SCIP_MATRIX *matrix, FIXINGDIRECTION *varstofix, int *nfixings)
Definition: presol_stuffing.c:69
public methods for nonlinear relaxation
methods for sorting joint arrays of various types
public methods for presolvers
general public methods
SCIP_Bool SCIPisGT(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:477
public methods for the probing mode
SCIP_Bool SCIPmatrixIsRowRhsInfinity(SCIP_MATRIX *matrix, int row)
Definition: matrix.c:1726
SCIP_RETCODE SCIPsetPresolCopy(SCIP *scip, SCIP_PRESOL *presol, SCIP_DECL_PRESOLCOPY((*presolcopy)))
Definition: scip_presol.c:131
public methods for message output
Definition: type_var.h:84
public methods for message handling
int SCIPmatrixGetColNDownlocks(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1608
SCIP_Bool SCIPisLE(SCIP *scip, SCIP_Real val1, SCIP_Real val2)
Definition: scip_numerics.c:464
Definition: presol_stuffing.c:57
int SCIPmatrixGetColNUplocks(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1596
Definition: presol_stuffing.c:58
Definition: objbenders.h:33
public methods for global and local (sub)problems
Definition: type_result.h:39
Definition: presol_stuffing.c:59
int SCIPmatrixGetColNNonzs(SCIP_MATRIX *matrix, int col)
Definition: matrix.c:1552
memory allocation routines
Definition: type_var.h:58