1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 2 /* */ 3 /* This file is part of the program and library */ 4 /* SCIP --- Solving Constraint Integer Programs */ 5 /* */ 6 /* Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB) */ 7 /* */ 8 /* Licensed under the Apache License, Version 2.0 (the "License"); */ 9 /* you may not use this file except in compliance with the License. */ 10 /* You may obtain a copy of the License at */ 11 /* */ 12 /* http://www.apache.org/licenses/LICENSE-2.0 */ 13 /* */ 14 /* Unless required by applicable law or agreed to in writing, software */ 15 /* distributed under the License is distributed on an "AS IS" BASIS, */ 16 /* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */ 17 /* See the License for the specific language governing permissions and */ 18 /* limitations under the License. */ 19 /* */ 20 /* You should have received a copy of the Apache-2.0 license */ 21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */ 22 /* */ 23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 24 25 /**@file struct_compr.h 26 * @ingroup INTERNALAPI 27 * @brief datastructures for tree compression techniques 28 * @author Jakob Witzig 29 */ 30 31 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 32 33 #ifndef __SCIP_STRUCT_COMPR_H__ 34 #define __SCIP_STRUCT_COMPR_H__ 35 36 37 #include "scip/def.h" 38 #include "scip/type_clock.h" 39 #include "scip/type_compr.h" 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /** tree compression data */ 46 struct SCIP_Compr 47 { 48 SCIP_Longint ncalls; /**< number of times, this compression was called */ 49 SCIP_Longint nfound; /**< number of compressions found so far by this method */ 50 SCIP_Real rate; /**< rate of the last compression */ 51 SCIP_Real loi; /**< loss of information of the last compression */ 52 char* name; /**< name of tree compression */ 53 char* desc; /**< description of tree compression */ 54 SCIP_DECL_COMPRCOPY ((*comprcopy)); /**< copy method of tree compression or NULL if you don't want to copy your plugin into sub-SCIPs */ 55 SCIP_DECL_COMPRFREE ((*comprfree)); /**< destructor of tree compression */ 56 SCIP_DECL_COMPRINIT ((*comprinit)); /**< initialize tree compression */ 57 SCIP_DECL_COMPREXIT ((*comprexit)); /**< deinitialize tree compression */ 58 SCIP_DECL_COMPRINITSOL ((*comprinitsol)); /**< solving process initialization method of tree compression */ 59 SCIP_DECL_COMPREXITSOL ((*comprexitsol)); /**< solving process deinitialization method of tree compression */ 60 SCIP_DECL_COMPREXEC ((*comprexec)); /**< execution method of tree compression */ 61 SCIP_COMPRDATA* comprdata; /**< tree compression local data */ 62 SCIP_CLOCK* setuptime; /**< time spend for setting up this compression for the next stages */ 63 SCIP_CLOCK* comprclock; /**< compression execution time */ 64 int priority; /**< priority of the tree compression */ 65 int minnnodes; /**< minimal number of nodes for calling compression, -1 if no threshold exists */ 66 int nnodes; /**< number of nodes of the last compression */ 67 SCIP_Bool initialized; /**< is tree compression initialized? */ 68 }; 69 70 #ifdef __cplusplus 71 } 72 #endif 73 74 #endif 75