scip_bandit.h

Go to the documentation of this file.

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
/*                                                                           */
/*  Copyright 2002-2022 Zuse Institute Berlin                                */
/*                                                                           */
/*  Licensed under the Apache License, Version 2.0 (the "License");          */
/*  you may not use this file except in compliance with the License.         */
/*  You may obtain a copy of the License at                                  */
/*                                                                           */
/*      http://www.apache.org/licenses/LICENSE-2.0                           */
/*                                                                           */
/*  Unless required by applicable law or agreed to in writing, software      */
/*  distributed under the License is distributed on an "AS IS" BASIS,        */
/*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/*  See the License for the specific language governing permissions and      */
/*  limitations under the License.                                           */
/*                                                                           */
/*  You should have received a copy of the Apache-2.0 license                */
/*  along with SCIP; see the file LICENSE. If not visit scipopt.org.         */
/*                                                                           */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/**@file   scip_bandit.h
 * @ingroup PUBLICCOREAPI
 * @brief  public methods for bandit algorithms
 * @author Tobias Achterberg
 * @author Timo Berthold
 * @author Thorsten Koch
 * @author Alexander Martin
 * @author Marc Pfetsch
 * @author Kati Wolter
 * @author Gregor Hendel
 * @author Leona Gottwald
 */

/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/

#ifndef __SCIP_SCIP_BANDIT_H__
#define __SCIP_SCIP_BANDIT_H__


#include "scip/def.h"
#include "scip/type_bandit.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"

#ifdef __cplusplus
extern "C" {
#endif

/**@addtogroup PublicBanditMethods
 *
 * @{
 */

/** includes a bandit algorithm virtual function table  */
SCIP_EXPORT
SCIP_RETCODE SCIPincludeBanditvtable(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_BANDITVTABLE**   banditvtable,       /**< bandit algorithm virtual function table */
   const char*           name,               /**< a name for the algorithm represented by this vtable */
   SCIP_DECL_BANDITFREE  ((*banditfree)),    /**< callback to free bandit specific data structures */
   SCIP_DECL_BANDITSELECT((*banditselect)),  /**< selection callback for bandit selector */
   SCIP_DECL_BANDITUPDATE((*banditupdate)),  /**< update callback for bandit algorithms */
   SCIP_DECL_BANDITRESET ((*banditreset))    /**< update callback for bandit algorithms */
   );

/** returns the bandit virtual function table of the given name, or NULL if not existing */
SCIP_EXPORT
SCIP_BANDITVTABLE* SCIPfindBanditvtable(
   SCIP*                 scip,               /**< SCIP data structure */
   const char*           name                /**< name of bandit algorithm virtual function table */
   );

/** calls destructor and frees memory of bandit algorithm */
SCIP_EXPORT
SCIP_RETCODE SCIPfreeBandit(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_BANDIT**         bandit              /**< pointer to bandit algorithm data structure */
   );

/** reset the bandit algorithm */
SCIP_EXPORT
SCIP_RETCODE SCIPresetBandit(
   SCIP*                 scip,               /**< SCIP data structure */
   SCIP_BANDIT*          bandit,             /**< pointer to bandit algorithm data structure */
   SCIP_Real*            priorities,         /**< priorities for every action, or NULL if not needed */
   unsigned int          seed                /**< initial random seed for bandit selection */
   );

/** @} */

#ifdef __cplusplus
}
#endif

#endif