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Solving Constraint Integer Programs
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scip-repo
src
scip
heur_zeroobj.h
Go to the documentation of this file.
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* */
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/* This file is part of the program and library */
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/* SCIP --- Solving Constraint Integer Programs */
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/* */
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/* Copyright (C) 2002-2014 Konrad-Zuse-Zentrum */
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/* fuer Informationstechnik Berlin */
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/* */
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/* SCIP is distributed under the terms of the ZIB Academic License. */
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/* */
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/* You should have received a copy of the ZIB Academic License */
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/* along with SCIP; see the file COPYING. If not email to scip@zib.de. */
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/* */
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/**@file heur_zeroobj.h
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* @ingroup PRIMALHEURISTICS
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* @brief heuristic that tries to solve the problem without objective. In Gurobi, this heuristic is known as "Hail Mary"
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* @author Timo Berthold
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*/
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/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
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#ifndef __SCIP_HEUR_ZEROOBJ_H__
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#define __SCIP_HEUR_ZEROOBJ_H__
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#include "
scip/scip.h
"
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/** main procedure of the zeroobj heuristic, creates and solves a sub-SCIP */
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extern
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SCIP_RETCODE
SCIPapplyZeroobj
(
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SCIP
* scip,
/**< original SCIP data structure */
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SCIP_HEUR
* heur,
/**< heuristic data structure */
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SCIP_RESULT
* result,
/**< result data structure */
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SCIP_Real
minimprove,
/**< factor by which zeroobj should at least improve the incumbent */
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SCIP_Longint
nnodes
/**< node limit for the subproblem */
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);
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/** creates the zeroobj primal heuristic and includes it in SCIP */
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extern
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SCIP_RETCODE
SCIPincludeHeurZeroobj
(
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SCIP
* scip
/**< SCIP data structure */
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
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