SCIP
Solving Constraint Integer Programs
Solving Constraint Integer Programs
internal methods for presolvers
Definition in file presol.h.
#include "scip/def.h"#include "blockmemshell/memory.h"#include "scip/type_retcode.h"#include "scip/type_result.h"#include "scip/type_set.h"#include "scip/type_presol.h"#include "scip/pub_presol.h"Go to the source code of this file.
| SCIP_RETCODE SCIPpresolCopyInclude | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set | ||
| ) |
copies the given presolver to a new scip
| presol | presolver |
| set | SCIP_SET of SCIP to copy to |
Definition at line 74 of file presol.c.
References NULL, SCIP_CALL, SCIP_OKAY, SCIPpresolGetName(), and SCIPsetDebugMsg.
Referenced by SCIPsetCopyPlugins().
| SCIP_RETCODE SCIPpresolCreate | ( | SCIP_PRESOL ** | presol, |
| SCIP_SET * | set, | ||
| SCIP_MESSAGEHDLR * | messagehdlr, | ||
| BMS_BLKMEM * | blkmem, | ||
| const char * | name, | ||
| const char * | desc, | ||
| int | priority, | ||
| int | maxrounds, | ||
| SCIP_PRESOLTIMING | timing, | ||
| SCIP_DECL_PRESOLCOPY((*presolcopy)) | , | ||
| SCIP_DECL_PRESOLFREE((*presolfree)) | , | ||
| SCIP_DECL_PRESOLINIT((*presolinit)) | , | ||
| SCIP_DECL_PRESOLEXIT((*presolexit)) | , | ||
| SCIP_DECL_PRESOLINITPRE((*presolinitpre)) | , | ||
| SCIP_DECL_PRESOLEXITPRE((*presolexitpre)) | , | ||
| SCIP_DECL_PRESOLEXEC((*presolexec)) | , | ||
| SCIP_PRESOLDATA * | presoldata | ||
| ) |
creates a presolver
| presol | pointer to store presolver |
| set | global SCIP settings |
| messagehdlr | message handler |
| blkmem | block memory for parameter settings |
| name | name of presolver |
| desc | description of presolver |
| priority | priority of the presolver (>= 0: before, < 0: after constraint handlers) |
| maxrounds | maximal number of presolving rounds the presolver participates in (-1: no limit) |
| timing | timing mask of the presolver |
| presoldata | presolver data |
Definition at line 92 of file presol.c.
References BMSallocMemory, BMSduplicateMemoryArray, FALSE, NULL, paramname, SCIP_ALLOC, SCIP_CALL, SCIP_CLOCKTYPE_DEFAULT, SCIP_MAXSTRLEN, SCIP_OKAY, SCIP_PARAMETERWRONGVAL, SCIP_PRESOLTIMING_EXHAUSTIVE, SCIP_PRESOLTIMING_FAST, SCIP_PRESOLTIMING_FINAL, SCIP_PRESOLTIMING_MAX, SCIP_PRESOLTIMING_MEDIUM, SCIPclockCreate(), SCIPmessagePrintError(), SCIPsetAddIntParam(), SCIPsnprintf(), and TRUE.
Referenced by SCIPincludePresol(), and SCIPincludePresolBasic().
| SCIP_RETCODE SCIPpresolFree | ( | SCIP_PRESOL ** | presol, |
| SCIP_SET * | set | ||
| ) |
frees memory of presolver
| presol | pointer to presolver data structure |
| set | global SCIP settings |
Definition at line 167 of file presol.c.
References BMSfreeMemory, BMSfreeMemoryArray, NULL, SCIP_CALL, SCIP_OKAY, and SCIPclockFree().
| SCIP_RETCODE SCIPpresolInit | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set | ||
| ) |
initializes presolver
| presol | presolver |
| set | global SCIP settings |
Definition at line 193 of file presol.c.
References SCIP_Presol::initialized, SCIP_Presol::lastnaddconss, SCIP_Presol::lastnaddholes, SCIP_Presol::lastnaggrvars, SCIP_Presol::lastnchgbds, SCIP_Presol::lastnchgcoefs, SCIP_Presol::lastnchgsides, SCIP_Presol::lastnchgvartypes, SCIP_Presol::lastndelconss, SCIP_Presol::lastnfixedvars, SCIP_Presol::lastnupgdconss, SCIP_Presol::naddconss, SCIP_Presol::naddholes, SCIP_Presol::naggrvars, SCIP_Presol::name, SCIP_Presol::ncalls, SCIP_Presol::nchgbds, SCIP_Presol::nchgcoefs, SCIP_Presol::nchgsides, SCIP_Presol::nchgvartypes, SCIP_Presol::ndelconss, SCIP_Presol::nfixedvars, NULL, SCIP_Presol::nupgdconss, SCIP_Presol::presolclock, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPclockReset(), SCIPclockStart(), SCIPclockStop(), SCIPerrorMessage, SCIP_Presol::setuptime, and TRUE.
Referenced by SCIPsetSetPriorityNlpi().
| SCIP_RETCODE SCIPpresolExit | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set | ||
| ) |
deinitializes presolver
| presol | presolver |
| set | global SCIP settings |
Definition at line 252 of file presol.c.
References FALSE, SCIP_Presol::initialized, SCIP_Presol::name, NULL, SCIP_CALL, SCIP_INVALIDCALL, SCIP_OKAY, SCIPclockStart(), SCIPclockStop(), SCIPerrorMessage, and SCIP_Presol::setuptime.
| SCIP_RETCODE SCIPpresolInitpre | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set | ||
| ) |
informs presolver that the presolving process is being started
| presol | presolver |
| set | global SCIP settings |
Definition at line 283 of file presol.c.
References SCIP_Presol::lastnaddconss, SCIP_Presol::lastnaddholes, SCIP_Presol::lastnaggrvars, SCIP_Presol::lastnchgbds, SCIP_Presol::lastnchgcoefs, SCIP_Presol::lastnchgsides, SCIP_Presol::lastnchgvartypes, SCIP_Presol::lastndelconss, SCIP_Presol::lastnfixedvars, SCIP_Presol::lastnupgdconss, NULL, SCIP_CALL, SCIP_OKAY, SCIPclockStart(), SCIPclockStop(), and SCIP_Presol::setuptime.
| SCIP_RETCODE SCIPpresolExitpre | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set | ||
| ) |
informs presolver that the presolving process is finished
| presol | presolver |
| set | global SCIP settings |
Definition at line 318 of file presol.c.
References NULL, SCIP_CALL, SCIP_OKAY, SCIPclockStart(), SCIPclockStop(), and SCIP_Presol::setuptime.
| SCIP_RETCODE SCIPpresolExec | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set, | ||
| SCIP_PRESOLTIMING | timing, | ||
| int | nrounds, | ||
| int * | nfixedvars, | ||
| int * | naggrvars, | ||
| int * | nchgvartypes, | ||
| int * | nchgbds, | ||
| int * | naddholes, | ||
| int * | ndelconss, | ||
| int * | naddconss, | ||
| int * | nupgdconss, | ||
| int * | nchgcoefs, | ||
| int * | nchgsides, | ||
| SCIP_RESULT * | result | ||
| ) |
executes presolver
| presol | presolver |
| set | global SCIP settings |
| timing | current presolving timing |
| nrounds | number of presolving rounds already done |
| nfixedvars | pointer to total number of variables fixed of all presolvers |
| naggrvars | pointer to total number of variables aggregated of all presolvers |
| nchgvartypes | pointer to total number of variable type changes of all presolvers |
| nchgbds | pointer to total number of variable bounds tightened of all presolvers |
| naddholes | pointer to total number of domain holes added of all presolvers |
| ndelconss | pointer to total number of deleted constraints of all presolvers |
| naddconss | pointer to total number of added constraints of all presolvers |
| nupgdconss | pointer to total number of upgraded constraints of all presolvers |
| nchgcoefs | pointer to total number of changed coefficients of all presolvers |
| nchgsides | pointer to total number of changed left/right hand sides of all presolvers |
| result | pointer to store the result of the callback method |
Definition at line 342 of file presol.c.
References SCIP_Presol::lastnaddconss, SCIP_Presol::lastnaddholes, SCIP_Presol::lastnaggrvars, SCIP_Presol::lastnchgbds, SCIP_Presol::lastnchgcoefs, SCIP_Presol::lastnchgsides, SCIP_Presol::lastnchgvartypes, SCIP_Presol::lastndelconss, SCIP_Presol::lastnfixedvars, SCIP_Presol::lastnupgdconss, SCIP_Presol::maxrounds, SCIP_Presol::naddconss, SCIP_Presol::naddholes, SCIP_Presol::naggrvars, SCIP_Presol::name, SCIP_Presol::ncalls, SCIP_Presol::nchgbds, SCIP_Presol::nchgcoefs, SCIP_Presol::nchgsides, SCIP_Presol::nchgvartypes, SCIP_Presol::ndelconss, SCIP_Presol::nfixedvars, NULL, SCIP_Presol::nupgdconss, SCIP_Presol::presolclock, SCIP_CALL, SCIP_CUTOFF, SCIP_DIDNOTFIND, SCIP_DIDNOTRUN, SCIP_INVALIDRESULT, SCIP_OKAY, SCIP_SUCCESS, SCIP_UNBOUNDED, SCIPclockStart(), SCIPclockStop(), SCIPerrorMessage, SCIPsetDebugMsg, and SCIP_Presol::timing.
Referenced by presolveRound().
| void SCIPpresolSetPriority | ( | SCIP_PRESOL * | presol, |
| SCIP_SET * | set, | ||
| int | priority | ||
| ) |
sets priority of presolver
| presol | presolver |
| set | global SCIP settings |
| priority | new priority of the presolver |
Definition at line 593 of file presol.c.
References FALSE, NULL, and SCIP_Presol::priority.
Referenced by SCIPsetPresolPriority().
| void SCIPpresolSetCopy | ( | SCIP_PRESOL * | presol, |
| SCIP_DECL_PRESOLCOPY((*presolcopy)) | |||
| ) |
sets copy method of presolver
| presol | presolver |
Definition at line 487 of file presol.c.
References NULL.
Referenced by SCIPsetPresolCopy().
| void SCIPpresolSetFree | ( | SCIP_PRESOL * | presol, |
| SCIP_DECL_PRESOLFREE((*presolfree)) | |||
| ) |
sets destructor method of presolver
| presol | presolver |
Definition at line 498 of file presol.c.
References NULL.
Referenced by SCIPsetPresolFree().
| void SCIPpresolSetInit | ( | SCIP_PRESOL * | presol, |
| SCIP_DECL_PRESOLINIT((*presolinit)) | |||
| ) |
sets initialization method of presolver
| presol | presolver |
Definition at line 509 of file presol.c.
References NULL.
Referenced by SCIPsetPresolInit().
| void SCIPpresolSetExit | ( | SCIP_PRESOL * | presol, |
| SCIP_DECL_PRESOLEXIT((*presolexit)) | |||
| ) |
sets deinitialization method of presolver
| presol | presolver |
Definition at line 520 of file presol.c.
References NULL.
Referenced by SCIPsetPresolExit().
| void SCIPpresolSetInitpre | ( | SCIP_PRESOL * | presol, |
| SCIP_DECL_PRESOLINITPRE((*presolinitpre)) | |||
| ) |
sets solving process initialization method of presolver
| presol | presolver |
Definition at line 531 of file presol.c.
References NULL.
Referenced by SCIPsetPresolInitpre().
| void SCIPpresolSetExitpre | ( | SCIP_PRESOL * | presol, |
| SCIP_DECL_PRESOLEXITPRE((*presolexitpre)) | |||
| ) |
sets solving process deinitialization method of presolver
| presol | presolver |
Definition at line 542 of file presol.c.
References NULL.
Referenced by SCIPsetPresolExitpre().
| void SCIPpresolEnableOrDisableClocks | ( | SCIP_PRESOL * | presol, |
| SCIP_Bool | enable | ||
| ) |
enables or disables all clocks of presol, depending on the value of the flag
| presol | the presolver for which all clocks should be enabled or disabled |
| enable | should the clocks of the presolver be enabled? |
Definition at line 639 of file presol.c.
References NULL, SCIP_Presol::presolclock, SCIPclockEnableOrDisable(), and SCIP_Presol::setuptime.