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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* */
/* This file is part of the program and library */
/* SCIP --- Solving Constraint Integer Programs */
/* */
/* Copyright 2002-2022 Zuse Institute Berlin */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* */
/* You should have received a copy of the Apache-2.0 license */
/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
/* */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**@file struct_relax.h
* @ingroup INTERNALAPI
* @brief data structures for relaxators
* @author Tobias Achterberg
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_STRUCT_RELAX_H__
#define __SCIP_STRUCT_RELAX_H__
#include "scip/def.h"
#include "scip/type_clock.h"
#include "scip/type_relax.h"
#ifdef __cplusplus
extern "C" {
#endif
/** relaxators data */
struct SCIP_Relax
{
SCIP_Longint ncalls; /**< number of times, this relaxator was called */
SCIP_Longint ncutoffs; /**< number of times, this relaxator cut off a node */
SCIP_Longint nimprbounds; /**< number of times, this relaxator improves the node's lower bound (w.r.t. SCIPisRelGT) */
SCIP_Longint naddedconss; /**< number of times, this relaxator added constraints */
SCIP_Longint nreduceddom; /**< number of times, this relaxator reduced variable domains */
SCIP_Longint nseparated; /**< number of times, this relaxator separated cuts */
SCIP_Longint lastsolvednode; /**< last total nodes counter, where the current relaxation was solved */
char* name; /**< name of relaxator */
char* desc; /**< description of relaxator */
SCIP_DECL_RELAXCOPY ((*relaxcopy)); /**< copy method of relaxator or NULL if you don't want to copy your plugin into sub-SCIPs */
SCIP_DECL_RELAXFREE ((*relaxfree)); /**< destructor of relaxator */
SCIP_DECL_RELAXINIT ((*relaxinit)); /**< initialize relaxator */
SCIP_DECL_RELAXEXIT ((*relaxexit)); /**< deinitialize relaxator */
SCIP_DECL_RELAXINITSOL((*relaxinitsol)); /**< solving process initialization method of relaxator */
SCIP_DECL_RELAXEXITSOL((*relaxexitsol)); /**< solving process deinitialization method of relaxator */
SCIP_DECL_RELAXEXEC ((*relaxexec)); /**< execution method of relaxator */
SCIP_RELAXDATA* relaxdata; /**< relaxators local data */
SCIP_CLOCK* setuptime; /**< time spent for setting up this relaxator for the next stages */
SCIP_CLOCK* relaxclock; /**< relaxation time */
SCIP_Real imprtime; /**< time spent for executing relaxator when improving bound (or cutoff) */
int priority; /**< priority of the relaxator */
int freq; /**< frequency for calling relaxator */
SCIP_Bool initialized; /**< is relaxator initialized? */
};
/** relaxation information data */
struct SCIP_Relaxation
{
SCIP_Real relaxsolobjval;
SCIP_Bool relaxsolvalid;
SCIP_Bool relaxsolincludeslp;
SCIP_Bool relaxsolzero;
SCIP_RELAX* lastsolrelax; /**< relaxator of the most recent relaxation solution */
};
#ifdef __cplusplus
}
#endif
#endif