Scippy

GCG

Branch-and-Price & Column Generation for Everyone

branch_relpsprob.h
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program */
4 /* GCG --- Generic Column Generation */
5 /* a Dantzig-Wolfe decomposition based extension */
6 /* of the branch-cut-and-price framework */
7 /* SCIP --- Solving Constraint Integer Programs */
8 /* */
9 /* Copyright (C) 2010-2021 Operations Research, RWTH Aachen University */
10 /* Zuse Institute Berlin (ZIB) */
11 /* */
12 /* This program is free software; you can redistribute it and/or */
13 /* modify it under the terms of the GNU Lesser General Public License */
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17 /* This program is distributed in the hope that it will be useful, */
18 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
19 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
20 /* GNU Lesser General Public License for more details. */
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24 /* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.*/
25 /* */
26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
27 
28 /**@file branch_relpsprob.h
29  * @brief reliable pseudo costs branching rule
30  * @author Tobias Achterberg
31  * @author Gerald Gamrath
32  */
33 
34 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
35 
36 #ifndef GCG_BRANCH_RELPSPROB_H__
37 #define GCG_BRANCH_RELPSPROB_H__
38 
39 
40 #include "scip/scip.h"
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 /** creates the reliable pseudo cost braching rule and includes it in SCIP */
47 extern
49  SCIP* scip /**< SCIP data structure */
50  );
51 
52 /** execution reliability pseudo cost probing branching with the given branching candidates */
53 extern
54 SCIP_RETCODE SCIPgetRelpsprobBranchVar(
55  SCIP* scip, /**< SCIP data structure */
56  SCIP_VAR** branchcands, /**< brancing candidates */
57  SCIP_Real* branchcandssol, /**< solution value for the branching candidates */
58  int nbranchcands, /**< number of branching candidates */
59  int nvars, /**< number of variables to be watched by bdchgdata */
60  SCIP_RESULT* result, /**< pointer to the result of the execution */
61  SCIP_VAR** branchvar /**< pointer to the variable to branch on */
62  );
63 
64 #ifdef __cplusplus
65 }
66 #endif
67 
68 #endif
SCIP_RETCODE SCIPincludeBranchruleRelpsprob(SCIP *scip)
SCIP_RETCODE SCIPgetRelpsprobBranchVar(SCIP *scip, SCIP_VAR **branchcands, SCIP_Real *branchcandssol, int nbranchcands, int nvars, SCIP_RESULT *result, SCIP_VAR **branchvar)