cmain.c

Go to the documentation of this file.

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/*                  This file is part of the program and library             */
/*         SCIP --- Solving Constraint Integer Programs                      */
/*                                                                           */
/*  Copyright (c) 2002-2024 Zuse Institute Berlin (ZIB)                      */
/*                                                                           */
/*  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   Binpacking/src/cmain.c
 * @brief  Main file for binpacking pricing example
 * @author Timo Berthold
 * @author Stefan Heinz
 *
 *  This the file contains the \ref main() main function of the projects. This includes all the default plugins of
 *  \SCIP and the once which belong to that projects. After that is starts the interactive shell of \SCIP or processes
 *  the shell arguments if given.
 */
#include <stdio.h>

#include "scip/scip.h"
#include "scip/scipshell.h"
#include "scip/scipdefplugins.h"

#include "branch_ryanfoster.h"
#include "cons_samediff.h"
#include "pricer_binpacking.h"
#include "reader_bpa.h"

/** creates a SCIP instance with default plugins, evaluates command line parameters, runs SCIP appropriately,
 *  and frees the SCIP instance
 */
static
SCIP_RETCODE runShell(
   int                   argc,               /**< number of shell parameters */
   char**                argv,               /**< array with shell parameters */
   const char*           defaultsetname      /**< name of default settings file */
   )
{
   SCIP* scip = NULL;

   /*********
    * Setup *
    *********/

   /* initialize SCIP */
   SCIP_CALL( SCIPcreate(&scip) );
   
   /* we explicitly enable the use of a debug solution for this main SCIP instance */
   SCIPenableDebugSol(scip);

   /* include binpacking reader */
   SCIP_CALL( SCIPincludeReaderBpa(scip) );

   /* include binpacking branching and branching data */
   SCIP_CALL( SCIPincludeBranchruleRyanFoster(scip) );
   SCIP_CALL( SCIPincludeConshdlrSamediff(scip) );
   
  /* include binpacking pricer  */
   SCIP_CALL( SCIPincludePricerBinpacking(scip) );

   /* include default SCIP plugins */
   SCIP_CALL( SCIPincludeDefaultPlugins(scip) );
 
   /* for column generation instances, disable restarts */
   SCIP_CALL( SCIPsetIntParam(scip,"presolving/maxrestarts",0) );

   /* turn off all separation algorithms */
   SCIP_CALL( SCIPsetSeparating(scip, SCIP_PARAMSETTING_OFF, TRUE) );
   
   /**********************************
    * Process command line arguments *
    **********************************/
   SCIP_CALL( SCIPprocessShellArguments(scip, argc, argv, defaultsetname) );

   /********************
    * Deinitialization *
    ********************/

   SCIP_CALL( SCIPfree(&scip) );

   BMScheckEmptyMemory();

   return SCIP_OKAY;
}

int
main(
   int                        argc,
   char**                     argv
   )
{
   SCIP_RETCODE retcode;

   retcode = runShell(argc, argv, "scip.set");
   if( retcode != SCIP_OKAY )
   {
      SCIPprintError(retcode);
      return -1;
   }

   return 0;
}