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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_compr.h
* @ingroup INTERNALAPI
* @brief datastructures for tree compression techniques
* @author Jakob Witzig
*/
/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
#ifndef __SCIP_STRUCT_COMPR_H__
#define __SCIP_STRUCT_COMPR_H__
#include "scip/def.h"
#include "scip/type_clock.h"
#include "scip/type_compr.h"
#ifdef __cplusplus
extern "C" {
#endif
/** tree compression data */
struct SCIP_Compr
{
SCIP_Longint ncalls; /**< number of times, this compression was called */
SCIP_Longint nfound; /**< number of compressions found so far by this method */
SCIP_Real rate; /**< rate of the last compression */
SCIP_Real loi; /**< loss of information of the last compression */
char* name; /**< name of tree compression */
char* desc; /**< description of tree compression */
SCIP_DECL_COMPRCOPY ((*comprcopy)); /**< copy method of tree compression or NULL if you don't want to copy your plugin into sub-SCIPs */
SCIP_DECL_COMPRFREE ((*comprfree)); /**< destructor of tree compression */
SCIP_DECL_COMPRINIT ((*comprinit)); /**< initialize tree compression */
SCIP_DECL_COMPREXIT ((*comprexit)); /**< deinitialize tree compression */
SCIP_DECL_COMPRINITSOL ((*comprinitsol)); /**< solving process initialization method of tree compression */
SCIP_DECL_COMPREXITSOL ((*comprexitsol)); /**< solving process deinitialization method of tree compression */
SCIP_DECL_COMPREXEC ((*comprexec)); /**< execution method of tree compression */
SCIP_COMPRDATA* comprdata; /**< tree compression local data */
SCIP_CLOCK* setuptime; /**< time spend for setting up this compression for the next stages */
SCIP_CLOCK* comprclock; /**< compression execution time */
int priority; /**< priority of the tree compression */
int minnnodes; /**< minimal number of nodes for calling compression, -1 if no threshold exists */
int nnodes; /**< number of nodes of the last compression */
SCIP_Bool initialized; /**< is tree compression initialized? */
};
#ifdef __cplusplus
}
#endif
#endif