Detailed Description
primal heuristic that tries a given solution
This heuristic takes a solution from somewhere else via the function SCIPheurPassSolTrySol(). It then tries to commit this solution. It is mainly used by cons_indicator, which tries to correct a given solution, but cannot directly submit this solution, because it is a constraint handler and not a heuristic.
Definition in file heur_trysol.c.
#include "scip/heur_trysol.h"
#include "scip/pub_heur.h"
#include "scip/pub_message.h"
#include "scip/pub_sol.h"
#include "scip/scip_heur.h"
#include "scip/scip_mem.h"
#include "scip/scip_message.h"
#include "scip/scip_numerics.h"
#include "scip/scip_prob.h"
#include "scip/scip_sol.h"
#include <string.h>
Go to the source code of this file.
Macros | |
#define | HEUR_NAME "trysol" |
#define | HEUR_DESC "try solution heuristic" |
#define | HEUR_DISPCHAR SCIP_HEURDISPCHAR_TRIVIAL |
#define | HEUR_PRIORITY -3000010 /* should process after all other heuristics */ |
#define | HEUR_FREQ 1 |
#define | HEUR_FREQOFS 0 |
#define | HEUR_MAXDEPTH -1 |
#define | HEUR_TIMING SCIP_HEURTIMING_DURINGLPLOOP | SCIP_HEURTIMING_BEFOREPRESOL | SCIP_HEURTIMING_BEFORENODE |
#define | HEUR_USESSUBSCIP FALSE |
Functions | |
static | SCIP_DECL_HEURCOPY (heurCopyTrySol) |
static | SCIP_DECL_HEURFREE (heurFreeTrySol) |
static | SCIP_DECL_HEUREXITSOL (heurExitTrySol) |
static | SCIP_DECL_HEUREXEC (heurExecTrySol) |
SCIP_RETCODE | SCIPincludeHeurTrySol (SCIP *scip) |
SCIP_RETCODE | SCIPheurPassSolTrySol (SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol) |
SCIP_RETCODE | SCIPheurPassSolAddSol (SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol) |
Macro Definition Documentation
◆ HEUR_NAME
#define HEUR_NAME "trysol" |
Definition at line 50 of file heur_trysol.c.
Referenced by SCIP_DECL_HEURCOPY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXITSOL(), SCIP_DECL_HEURFREE(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), and SCIPincludeHeurTrySol().
◆ HEUR_DESC
#define HEUR_DESC "try solution heuristic" |
Definition at line 51 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_DISPCHAR
#define HEUR_DISPCHAR SCIP_HEURDISPCHAR_TRIVIAL |
Definition at line 52 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_PRIORITY
#define HEUR_PRIORITY -3000010 /* should process after all other heuristics */ |
Definition at line 53 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_FREQ
#define HEUR_FREQ 1 |
Definition at line 54 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_FREQOFS
#define HEUR_FREQOFS 0 |
Definition at line 55 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_MAXDEPTH
#define HEUR_MAXDEPTH -1 |
Definition at line 56 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_TIMING
#define HEUR_TIMING SCIP_HEURTIMING_DURINGLPLOOP | SCIP_HEURTIMING_BEFOREPRESOL | SCIP_HEURTIMING_BEFORENODE |
Definition at line 57 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
◆ HEUR_USESSUBSCIP
#define HEUR_USESSUBSCIP FALSE |
does the heuristic use a secondary SCIP instance?
Definition at line 58 of file heur_trysol.c.
Referenced by SCIPincludeHeurTrySol().
Function Documentation
◆ SCIP_DECL_HEURCOPY()
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static |
copy method for primal heuristic plugins (called when SCIP copies plugins)
Definition at line 81 of file heur_trysol.c.
References HEUR_NAME, NULL, SCIP_CALL, SCIP_OKAY, SCIPheurGetName(), and SCIPincludeHeurTrySol().
◆ SCIP_DECL_HEURFREE()
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static |
destructor of primal heuristic to free user data (called when SCIP is exiting)
Definition at line 95 of file heur_trysol.c.
References HEUR_NAME, NULL, SCIP_OKAY, SCIPdebugMsg, SCIPfreeBlockMemory, SCIPheurGetData(), and SCIPheurGetName().
◆ SCIP_DECL_HEUREXITSOL()
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static |
deinitialization method of primal heuristic (called before transformed problem is freed)
Definition at line 117 of file heur_trysol.c.
References HEUR_NAME, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMsg, SCIPfreeSol(), SCIPheurGetData(), and SCIPheurGetName().
◆ SCIP_DECL_HEUREXEC()
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static |
execution method of primal heuristic
Definition at line 147 of file heur_trysol.c.
References FALSE, HEUR_NAME, NULL, SCIP_Bool, SCIP_CALL, SCIP_DIDNOTFIND, SCIP_DIDNOTRUN, SCIP_FOUNDSOL, SCIP_OKAY, SCIP_Real, SCIPaddSolFree(), SCIPdebugMsg, SCIPgetSolOrigObj(), SCIPheurGetData(), SCIPheurGetName(), SCIPtrySolFree(), and TRUE.