use of org.cpsolver.ifs.assignment.DefaultParallelAssignment in project cpsolver by UniTime.
the class Test method main.
/**
* Main program
*
* @param args
* problem property file, input file (optional, may be set by
* General.Input property), output file (optional, may be set by
* General.OutputFile property)
*/
public static void main(String[] args) {
try {
DataProperties cfg = new DataProperties();
cfg.setProperty("Termination.StopWhenComplete", "false");
cfg.setProperty("Termination.TimeOut", "1800");
cfg.setProperty("General.SaveBestUnassigned", "-1");
cfg.setProperty("Neighbour.Class", "org.cpsolver.exam.heuristics.ExamNeighbourSelection");
if (args.length >= 1) {
cfg.load(new FileInputStream(args[0]));
cfg.setProperty("General.Config", new File(args[0]).getName());
}
cfg.putAll(System.getProperties());
File inputFile = new File("c:\\test\\exam\\exam1070.xml");
if (args.length >= 2) {
inputFile = new File(args[1]);
}
ToolBox.setSeed(cfg.getPropertyLong("General.Seed", Math.round(Long.MAX_VALUE * Math.random())));
cfg.setProperty("General.Input", inputFile.toString());
String outName = inputFile.getName();
if (outName.indexOf('.') >= 0)
outName = outName.substring(0, outName.lastIndexOf('.')) + "s.xml";
File outFile = new File(inputFile.getParentFile(), outName);
if (args.length >= 3) {
outFile = new File(args[2]);
if (outFile.exists() && outFile.isDirectory())
outFile = new File(outFile, outName);
if (!outFile.exists() && !outFile.getName().endsWith(".xml"))
outFile = new File(outFile, outName);
}
if (outFile.getParentFile() != null)
outFile.getParentFile().mkdirs();
cfg.setProperty("General.OutputFile", outFile.toString());
cfg.setProperty("General.Output", outFile.getParent());
String logName = outFile.getName();
if (logName.indexOf('.') >= 0)
logName = logName.substring(0, logName.lastIndexOf('.')) + ".log";
setupLogging(new File(outFile.getParent(), logName), "true".equals(System.getProperty("debug", "false")));
ExamModel model = new ExamModel(cfg);
Document document = (new SAXReader()).read(new File(cfg.getProperty("General.Input")));
int nrSolvers = cfg.getPropertyInt("Parallel.NrSolvers", 1);
Assignment<Exam, ExamPlacement> assignment = (nrSolvers <= 1 ? new DefaultSingleAssignment<Exam, ExamPlacement>() : new DefaultParallelAssignment<Exam, ExamPlacement>());
model.load(document, assignment);
Solver<Exam, ExamPlacement> solver = (nrSolvers == 1 ? new Solver<Exam, ExamPlacement>(cfg) : new ParallelSolver<Exam, ExamPlacement>(cfg));
solver.setInitalSolution(new Solution<Exam, ExamPlacement>(model, assignment));
solver.currentSolution().addSolutionListener(new SolutionListener<Exam, ExamPlacement>() {
@Override
public void solutionUpdated(Solution<Exam, ExamPlacement> solution) {
}
@Override
public void getInfo(Solution<Exam, ExamPlacement> solution, Map<String, String> info) {
}
@Override
public void getInfo(Solution<Exam, ExamPlacement> solution, Map<String, String> info, Collection<Exam> variables) {
}
@Override
public void bestCleared(Solution<Exam, ExamPlacement> solution) {
}
@Override
public void bestSaved(Solution<Exam, ExamPlacement> solution) {
ExamModel m = (ExamModel) solution.getModel();
Assignment<Exam, ExamPlacement> a = solution.getAssignment();
if (sLog.isInfoEnabled()) {
sLog.info("**BEST[" + solution.getIteration() + "]** " + (m.variables().size() > a.nrAssignedVariables() ? "V:" + a.nrAssignedVariables() + "/" + m.variables().size() + " - " : "") + "T:" + new DecimalFormat("0.00").format(m.getTotalValue(a)) + " " + m.toString(a) + (solution.getFailedIterations() > 0 ? ", F:" + sDoubleFormat.format(100.0 * solution.getFailedIterations() / solution.getIteration()) + "%" : ""));
}
}
@Override
public void bestRestored(Solution<Exam, ExamPlacement> solution) {
}
});
Runtime.getRuntime().addShutdownHook(new ShutdownHook(solver));
solver.start();
try {
solver.getSolverThread().join();
} catch (InterruptedException e) {
}
} catch (Exception e) {
e.printStackTrace();
}
}
use of org.cpsolver.ifs.assignment.DefaultParallelAssignment in project cpsolver by UniTime.
the class Test method execute.
/**
* Run the problem
*/
public void execute() {
int nrSolvers = getProperties().getPropertyInt("Parallel.NrSolvers", 1);
Solver<TeachingRequest.Variable, TeachingAssignment> solver = (nrSolvers == 1 ? new Solver<TeachingRequest.Variable, TeachingAssignment>(getProperties()) : new ParallelSolver<TeachingRequest.Variable, TeachingAssignment>(getProperties()));
Assignment<TeachingRequest.Variable, TeachingAssignment> assignment = (nrSolvers <= 1 ? new DefaultSingleAssignment<TeachingRequest.Variable, TeachingAssignment>() : new DefaultParallelAssignment<TeachingRequest.Variable, TeachingAssignment>());
if (!load(new File(getProperties().getProperty("input", "input/solution.xml")), assignment))
return;
solver.setInitalSolution(new Solution<TeachingRequest.Variable, TeachingAssignment>(this, assignment));
solver.currentSolution().addSolutionListener(new SolutionListener<TeachingRequest.Variable, TeachingAssignment>() {
@Override
public void solutionUpdated(Solution<TeachingRequest.Variable, TeachingAssignment> solution) {
}
@Override
public void getInfo(Solution<TeachingRequest.Variable, TeachingAssignment> solution, Map<String, String> info) {
}
@Override
public void getInfo(Solution<TeachingRequest.Variable, TeachingAssignment> solution, Map<String, String> info, Collection<TeachingRequest.Variable> variables) {
}
@Override
public void bestCleared(Solution<TeachingRequest.Variable, TeachingAssignment> solution) {
}
@Override
public void bestSaved(Solution<TeachingRequest.Variable, TeachingAssignment> solution) {
Model<TeachingRequest.Variable, TeachingAssignment> m = solution.getModel();
Assignment<TeachingRequest.Variable, TeachingAssignment> a = solution.getAssignment();
System.out.println("**BEST[" + solution.getIteration() + "]** " + m.toString(a));
}
@Override
public void bestRestored(Solution<TeachingRequest.Variable, TeachingAssignment> solution) {
}
});
solver.start();
try {
solver.getSolverThread().join();
} catch (InterruptedException e) {
}
Solution<TeachingRequest.Variable, TeachingAssignment> solution = solver.lastSolution();
solution.restoreBest();
sLog.info("Best solution found after " + solution.getBestTime() + " seconds (" + solution.getBestIteration() + " iterations).");
sLog.info("Number of assigned variables is " + solution.getModel().assignedVariables(solution.getAssignment()).size());
sLog.info("Total value of the solution is " + solution.getModel().getTotalValue(solution.getAssignment()));
sLog.info("Info: " + ToolBox.dict2string(solution.getExtendedInfo(), 2));
File outDir = new File(getProperties().getProperty("output", "output"));
outDir.mkdirs();
save(outDir, solution.getAssignment());
try {
generateReports(outDir, assignment);
} catch (IOException e) {
sLog.error("Failed to write reports: " + e.getMessage(), e);
}
ConflictStatistics<TeachingRequest.Variable, TeachingAssignment> cbs = null;
for (Extension<TeachingRequest.Variable, TeachingAssignment> extension : solver.getExtensions()) {
if (ConflictStatistics.class.isInstance(extension)) {
cbs = (ConflictStatistics<TeachingRequest.Variable, TeachingAssignment>) extension;
}
}
if (cbs != null) {
PrintWriter out = null;
try {
out = new PrintWriter(new FileWriter(new File(outDir, "cbs.txt")));
out.println(cbs.toString());
out.flush();
out.close();
} catch (IOException e) {
sLog.error("Failed to write CBS: " + e.getMessage(), e);
} finally {
if (out != null)
out.close();
}
}
}
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