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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_concsolver.h
* @ingroup INTERNALAPI
* @brief datastructures for concurrent solvers
* @author Leona Gottwald
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_STRUCT_CONCSOLVER_H__
#define __SCIP_STRUCT_CONCSOLVER_H__
#include "scip/def.h"
#include "scip/type_concsolver.h"
#include "scip/type_clock.h"
#ifdef __cplusplus
extern "C" {
#endif
/** concurrent solver data structure */
struct SCIP_ConcSolverType
{
int ninstances; /**< number of instances created from this concurrent solver type */
SCIP_Real prefprio; /**< the weight of the concurrent */
char* name; /**< name of concurrent solver */
SCIP_CONCSOLVERTYPEDATA* data; /**< user data of concurrent solver type */
SCIP_DECL_CONCSOLVERCREATEINST ((*concsolvercreateinst)); /**< creates an instance of the concurrent solver */
SCIP_DECL_CONCSOLVERDESTROYINST ((*concsolverdestroyinst)); /**< destroys an instance of the concurrent solver */
SCIP_DECL_CONCSOLVERINITSEEDS ((*concsolverinitseeds)); /**< initialize random seeds of concurrent solver */
SCIP_DECL_CONCSOLVEREXEC ((*concsolverexec)); /**< execution method of concurrent solver */
SCIP_DECL_CONCSOLVERCOPYSOLVINGDATA ((*concsolvercopysolvdata));/**< copies the solving data */
SCIP_DECL_CONCSOLVERSTOP ((*concsolverstop)); /**< terminate solving in concurrent solver */
SCIP_DECL_CONCSOLVERSYNCWRITE ((*concsolversyncwrite)); /**< synchronization method of concurrent solver for sharing it's data */
SCIP_DECL_CONCSOLVERSYNCREAD ((*concsolversyncread)); /**< synchronization method of concurrent solver for reading shared data */
SCIP_DECL_CONCSOLVERTYPEFREEDATA ((*concsolvertypefreedata));/**< frees user data of concurrent solver type */
};
/** concurrent solver data structure */
struct SCIP_ConcSolver
{
SCIP_CONCSOLVERTYPE* type; /**< type of this concurrent solver */
int idx; /**< index of initialized exernal solver */
char* name; /**< name of concurrent solver */
SCIP_CONCSOLVERDATA* data; /**< user data of concurrent solver */
SCIP_SYNCDATA* syncdata; /**< most recent synchronization data that has been read */
SCIP_Longint nsyncs; /**< total number of synchronizations */
SCIP_Real timesincelastsync; /**< time since the last synchronization */
SCIP_Real syncdelay; /**< current delay of synchronization data */
SCIP_Real syncfreq; /**< current synchronization frequency of the concurrent solver */
SCIP_Real solvingtime; /**< solving time with wall clock */
SCIP_Bool stopped; /**< flag to store if the concurrent solver has been stopped
* through the SCIPconcsolverStop function */
SCIP_Longint nlpiterations; /**< number of lp iterations the concurrent solver used */
SCIP_Longint nnodes; /**< number of nodes the concurrent solver used */
SCIP_Longint nsolsrecvd; /**< number of solutions the concurrent solver received */
SCIP_Longint nsolsshared; /**< number of solutions the concurrent solver found */
SCIP_Longint ntighterbnds; /**< number of tighter global variable bounds the concurrent solver received */
SCIP_Longint ntighterintbnds; /**< number of tighter global variable bounds the concurrent solver received
* on integer variables */
SCIP_CLOCK* totalsynctime; /**< total time used for synchronization, including idle time */
};
#ifdef __cplusplus
}
#endif
#endif