148 lines
5.2 KiB
C++
148 lines
5.2 KiB
C++
/*
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<simulated_annealing.cpp>
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Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2008
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(C) OPAC Team, LIFL, 2002-2008
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Sébastien Cahon, Jean-Charles Boisson
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This software is governed by the CeCILL license under French law and
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abiding by the rules of distribution of free software. You can use,
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modify and/ or redistribute the software under the terms of the CeCILL
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license as circulated by CEA, CNRS and INRIA at the following URL
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"http://www.cecill.info".
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As a counterpart to the access to the source code and rights to copy,
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modify and redistribute granted by the license, users are provided only
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with a limited warranty and the software's author, the holder of the
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economic rights, and the successive licensors have only limited liability.
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In this respect, the user's attention is drawn to the risks associated
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with loading, using, modifying and/or developing or reproducing the
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software by the user in light of its specific status of free software,
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that may mean that it is complicated to manipulate, and that also
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therefore means that it is reserved for developers and experienced
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professionals having in-depth computer knowledge. Users are therefore
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encouraged to load and test the software's suitability as regards their
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requirements in conditions enabling the security of their systems and/or
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data to be ensured and, more generally, to use and operate it in the
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same conditions as regards security.
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The fact that you are presently reading this means that you have had
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knowledge of the CeCILL license and that you accept its terms.
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ParadisEO WebSite : http://paradiseo.gforge.inria.fr
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Contact: paradiseo-help@lists.gforge.inria.fr
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*/
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#include <eo>
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#include <mo>
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#include <tsp>
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void manage_configuration_file(eoParser & _parser);
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int
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main (int _argc, char* _argv [])
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{
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std::string instancePath, value;
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unsigned int seed, maxIterations;
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double threshold, geometricRatio, linearRatio, initialTemperature;
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eoParser parser(_argc, _argv);
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manage_configuration_file(parser);
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seed=atoi( (parser.getParamWithLongName("seed")->getValue()).c_str() );
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instancePath=parser.getParamWithLongName("instancePath")->getValue();
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maxIterations=atoi( (parser.getParamWithLongName("maxIter")->getValue()).c_str() );
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initialTemperature=atof( (parser.getParamWithLongName("initialTemp")->getValue()).c_str() );
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threshold=atof( (parser.getParamWithLongName("threshold")->getValue()).c_str() );
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geometricRatio=atof( (parser.getParamWithLongName("geometricRatio")->getValue()).c_str() );
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linearRatio=atof( (parser.getParamWithLongName("lineaRatio")->getValue()).c_str() );
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value=parser.getParamWithLongName("coolSchedType")->getValue();
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srand (seed);
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Graph::load(instancePath.c_str());
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Route solution;
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RouteInit initializer;
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initializer (solution);
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RouteEval full_evaluation;
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full_evaluation (solution);
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std :: cout << "[From] " << solution << std :: endl;
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/* Tools for an efficient (? :-))
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local search ! */
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TwoOptRand two_opt_random_move_generator;
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TwoOptIncrEval two_opt_incremental_evaluation;
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TwoOpt move;
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moCoolingSchedule* coolingSchedule;
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if(value.compare("Geometric")==0)
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{
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coolingSchedule=new moGeometricCoolingSchedule(threshold, geometricRatio);
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}
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else if (value.compare("Linear")==0)
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{
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coolingSchedule=new moLinearCoolingSchedule(threshold, linearRatio);
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}
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else
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{
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throw std::runtime_error("[simulated_annealing.cpp]: the type of cooling schedule '"+value+"' is not correct.");
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}
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moGenSolContinue <Route> continu (maxIterations);
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moSA <TwoOpt> simulated_annealing (two_opt_random_move_generator, two_opt_incremental_evaluation,
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continu, initialTemperature, *coolingSchedule, full_evaluation);
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simulated_annealing (solution);
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std :: cout << "[To] " << solution << std :: endl;
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delete(coolingSchedule);
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return EXIT_SUCCESS ;
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}
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void
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manage_configuration_file(eoParser & _parser)
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{
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std::ofstream os;
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_parser.createParam(std::string("../examples/tsp/benchs/berlin52.tsp"), "instancePath", "Path to the instance.",
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0, "Configuration", false);
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_parser.getORcreateParam((unsigned int)time(0), "seed", "Seed for rand.", 0, "Configuration", false);
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_parser.getORcreateParam((unsigned int)1000, "maxIter", "Maximum number of iterations.", 0, "Configuration", false);
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_parser.getORcreateParam((double)1000, "initialTemp", "Initial temperature.", 0, "Configuration", false);
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_parser.getORcreateParam((double)0.1, "threshold", "Minimum temperature allowed.", 0, "Configuration", false);
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_parser.getORcreateParam((double)0.98, "geometricRatio", "Ratio used if exponential cooling schedule is chosen.", 0, "Configuration", false);
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_parser.getORcreateParam((double)0.5, "lineaRatio", "Ratio used if linear cooling schedule is chosen.", 0, "Configuration", false);
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_parser.getORcreateParam(std::string("Geometric"), "coolSchedType", "Type the cooling schedule: 'Geometric' or 'Linear'.",
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0, "Configuration", false);
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if (_parser.userNeedsHelp())
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{
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_parser.printHelp(std::cout);
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exit(EXIT_FAILURE);
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}
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os.open("current_param");
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if(!os.is_open())
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{
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throw std::runtime_error("[simulated_annealing.cpp]: the file current_param cannot be created.");
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}
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os <<_parser;
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os.close();
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}
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