heur_reoptsols.c File Reference

Detailed Description

reoptsols primal heuristic

Author

Jakob Witzig

Definition in file heur_reoptsols.c.

#include "blockmemshell/memory.h"
#include "scip/heur_reoptsols.h"
#include "scip/pub_heur.h"
#include "scip/pub_message.h"
#include "scip/scip_heur.h"
#include "scip/scip_mem.h"
#include "scip/scip_message.h"
#include "scip/scip_numerics.h"
#include "scip/scip_param.h"
#include "scip/scip_prob.h"
#include "scip/scip_reopt.h"
#include "scip/scip_sol.h"
#include "scip/scip_solve.h"
#include "scip/scip_solvingstats.h"
#include <string.h>

Go to the source code of this file.

Macros
#define	HEUR_NAME   "reoptsols"
#define	HEUR_DESC   "primal heuristic updating solutions found in a previous optimization round"
#define	HEUR_DISPCHAR   SCIP_HEURDISPCHAR_PROP
#define	HEUR_PRIORITY   40000
#define	HEUR_FREQ   0
#define	HEUR_FREQOFS   0
#define	HEUR_MAXDEPTH   0
#define	HEUR_TIMING   SCIP_HEURTIMING_BEFORENODE
#define	HEUR_USESSUBSCIP   FALSE

Functions
static SCIP_RETCODE	createNewSol (SCIP *scip, SCIP_HEUR *heur, SCIP_SOL *sol, SCIP_Bool *success)
static	SCIP_DECL_HEURCOPY (heurCopyReoptsols)
static	SCIP_DECL_HEURFREE (heurFreeReoptsols)
static	SCIP_DECL_HEURINIT (heurInitReoptsols)
static	SCIP_DECL_HEUREXEC (heurExecReoptsols)
int	SCIPreoptsolsGetNCheckedsols (SCIP *scip)
int	SCIPreoptsolsGetNImprovingsols (SCIP *scip)
SCIP_RETCODE	SCIPincludeHeurReoptsols (SCIP *scip)

Macro Definition Documentation

HEUR_NAME

#define HEUR_NAME   "reoptsols"

Definition at line 50 of file heur_reoptsols.c.

HEUR_DESC

#define HEUR_DESC   "primal heuristic updating solutions found in a previous optimization round"

Definition at line 51 of file heur_reoptsols.c.

HEUR_DISPCHAR

#define HEUR_DISPCHAR   SCIP_HEURDISPCHAR_PROP

Definition at line 52 of file heur_reoptsols.c.

HEUR_PRIORITY

#define HEUR_PRIORITY   40000

Definition at line 53 of file heur_reoptsols.c.

HEUR_FREQ

#define HEUR_FREQ   0

Definition at line 54 of file heur_reoptsols.c.

HEUR_FREQOFS

#define HEUR_FREQOFS   0

Definition at line 55 of file heur_reoptsols.c.

HEUR_MAXDEPTH

#define HEUR_MAXDEPTH   0

Definition at line 56 of file heur_reoptsols.c.

HEUR_TIMING

#define HEUR_TIMING   SCIP_HEURTIMING_BEFORENODE

Definition at line 57 of file heur_reoptsols.c.

HEUR_USESSUBSCIP

#define HEUR_USESSUBSCIP   FALSE

does the heuristic use a secondary SCIP instance?

Definition at line 58 of file heur_reoptsols.c.

Function Documentation

createNewSol()

static SCIP_RETCODE createNewSol ( SCIP *  scip, SCIP_HEUR *  heur, SCIP_SOL *  sol, SCIP_Bool *  success  )

static

creates a new solution for the original problem by copying the solution of the subproblem

Parameters

scip	original SCIP data structure
heur	the current heuristic
sol	solution of the subproblem
success	used to store whether new solution was found or not

Definition at line 86 of file heur_reoptsols.c.

References FALSE, NULL, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPcreateSol(), SCIPfreeBufferArray, SCIPgetSolVals(), SCIPgetVarsData(), SCIPsetSolVals(), SCIPtrySolFree(), and TRUE.

Referenced by SCIP_DECL_HEUREXEC().

SCIP_DECL_HEURCOPY()

static SCIP_DECL_HEURCOPY ( heurCopyReoptsols  )

static

copy method for primal heuristic plugins (called when SCIP copies plugins)

Definition at line 122 of file heur_reoptsols.c.

References HEUR_NAME, NULL, SCIP_CALL, SCIP_OKAY, SCIPheurGetName(), and SCIPincludeHeurReoptsols().

SCIP_DECL_HEURFREE()

static SCIP_DECL_HEURFREE ( heurFreeReoptsols  )

static

Definition at line 136 of file heur_reoptsols.c.

References NULL, SCIP_OKAY, SCIPfreeBlockMemory, SCIPheurGetData(), and SCIPheurSetData().

SCIP_DECL_HEURINIT()

static SCIP_DECL_HEURINIT ( heurInitReoptsols  )

static

Definition at line 154 of file heur_reoptsols.c.

References NULL, SCIP_OKAY, and SCIPheurGetData().

SCIP_DECL_HEUREXEC()

static SCIP_DECL_HEUREXEC ( heurExecReoptsols  )

static

execution method of primal heuristic

Definition at line 172 of file heur_reoptsols.c.

References createNewSol(), HEUR_NAME, MAX, NULL, SCIP_Bool, SCIP_CALL, SCIP_DIDNOTFIND, SCIP_DIDNOTRUN, SCIP_FOUNDSOL, SCIP_INVALID, SCIP_INVALIDRESULT, SCIP_OKAY, SCIP_Real, SCIPallocBufferArray, SCIPdebugMsg, SCIPfreeBufferArray, SCIPgetBoolParam(), SCIPgetCutoffbound(), SCIPgetNReoptRuns(), SCIPgetRealParam(), SCIPgetReoptSimilarity(), SCIPgetReoptSolsRun(), SCIPgetSolTransObj(), SCIPheurGetData(), SCIPisFeasLT(), SCIPisInfinity(), SCIPisReoptEnabled(), SCIPreallocBufferArray, SCIPrecomputeSolObj(), and SCIPresetReoptSolMarks().