Scippy

SCIP

Solving Constraint Integer Programs

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
38 extern "C" {
39 #endif
40 
42 
43 /** return whether symmetry can be computed */
44 SCIP_EXPORT
46 
47 /** return name of external program used to compute generators */
48 SCIP_EXPORT
49 const char* SYMsymmetryGetName(void);
50 
51 /** return description of external program used to compute generators */
52 SCIP_EXPORT
53 const char* SYMsymmetryGetDesc(void);
54 
55 /** return name of additional external program used for computing symmetries */
56 SCIP_EXPORT
57 const char* SYMsymmetryGetAddName(void);
58 
59 /** return description of additional external program used to compute symmetries */
60 SCIP_EXPORT
61 const char* SYMsymmetryGetAddDesc(void);
62 
63 /** compute generators of symmetry group */
64 SCIP_EXPORT
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
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)
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
const char * SYMsymmetryGetAddName(void)
structs for symmetry computations
const char * SYMsymmetryGetAddDesc(void)
#define SCIP_Bool
Definition: def.h:93
SCIP_Bool SYMcanComputeSymmetry(void)
const char * SYMsymmetryGetName(void)
#define SCIP_Real
Definition: def.h:186
const char * SYMsymmetryGetDesc(void)
SCIP callable library.