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compute_symmetry.h
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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 compute_symmetry.h
26 * @brief interface for symmetry computations
27 * @author Marc Pfetsch
28 */
29
30/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
31
32#ifndef __SCIP_COMPUTE_SYMMETRY_H_
33#define __SCIP_COMPUTE_SYMMETRY_H_
34
35#include "scip/scip.h"
36
37#ifdef __cplusplus
38extern "C" {
39#endif
40
42
43/** return whether symmetry can be computed */
45SCIP_Bool SYMcanComputeSymmetry(void);
46
47/** return name of external program used to compute generators */
49const char* SYMsymmetryGetName(void);
50
51/** return description of external program used to compute generators */
53const char* SYMsymmetryGetDesc(void);
54
55/** return name of additional external program used for computing symmetries */
57const char* SYMsymmetryGetAddName(void);
58
59/** return description of additional external program used to compute symmetries */
61const char* SYMsymmetryGetAddDesc(void);
62
63/** compute generators of symmetry group */
66 SCIP* scip, /**< SCIP pointer */
67 int maxgenerators, /**< maximal number of generators constructed (= 0 if unlimited) */
68 SYM_MATRIXDATA* matrixdata, /**< data for MIP matrix */
69 SYM_EXPRDATA* exprdata, /**< data for nonlinear constraints */
70 int* nperms, /**< pointer to store number of permutations */
71 int* nmaxperms, /**< pointer to store maximal number of permutations (needed for freeing storage) */
72 int*** perms, /**< pointer to store permutation generators as (nperms x npermvars) matrix */
73 SCIP_Real* log10groupsize, /**< pointer to store log10 of size of group */
74 SCIP_Real* symcodetime /**< pointer to store the time for symmetry code */
75 );
76
77#ifdef __cplusplus
78}
79#endif
80
81#endif
const char * SYMsymmetryGetName(void)
const char * SYMsymmetryGetAddName(void)
SCIP_Bool SYMcanComputeSymmetry(void)
SCIP_RETCODE SYMcomputeSymmetryGenerators(SCIP *scip, int maxgenerators, SYM_MATRIXDATA *matrixdata, SYM_EXPRDATA *exprdata, int *nperms, int *nmaxperms, int ***perms, SCIP_Real *log10groupsize, SCIP_Real *symcodetime)
const char * SYMsymmetryGetDesc(void)
const char * SYMsymmetryGetAddDesc(void)
SCIP callable library.
structs for symmetry computations
enum SCIP_Retcode SCIP_RETCODE