1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.Text;
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25 | using System.Windows.Forms;
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26 | using HeuristicLab.PluginInfrastructure;
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27 | using System.Net;
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28 | using System.ServiceModel;
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29 | using HeuristicLab.CEDMA.DB.Interfaces;
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30 | using HeuristicLab.CEDMA.DB;
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31 | using System.ServiceModel.Description;
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32 | using System.Linq;
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33 | using HeuristicLab.CEDMA.Core;
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34 | using HeuristicLab.GP.StructureIdentification;
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35 | using HeuristicLab.Data;
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36 | using HeuristicLab.Grid;
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37 | using System.Diagnostics;
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38 | using HeuristicLab.Core;
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39 | using System.Threading;
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40 |
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41 | namespace HeuristicLab.CEDMA.Server {
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42 | public class Executer {
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43 | private static int MaxActiveJobs {
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44 | get { return 20; }
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45 | }
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46 | private Dispatcher dispatcher;
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47 | private JobManager jobManager;
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48 | private IStore store;
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49 |
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50 | public Executer(Dispatcher dispatcher, IStore store, string gridUrl) {
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51 | this.dispatcher = dispatcher;
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52 | this.store = store;
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53 | this.jobManager = new JobManager(gridUrl);
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54 | jobManager.Reset();
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55 | }
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56 |
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57 | internal void Start() {
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58 | new Thread(StartJobs).Start();
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59 | }
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60 |
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61 | private void StartJobs() {
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62 | List<WaitHandle> wh = new List<WaitHandle>();
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63 | Dictionary<WaitHandle, AtomicOperation> activeOperations = new Dictionary<WaitHandle,AtomicOperation>();
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64 | Dictionary<WaitHandle, Execution> activeExecutions = new Dictionary<WaitHandle,Execution>();
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65 | while (true) {
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66 | try {
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67 | // start new jobs as long as there are less than MaxActiveJobs
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68 | while (wh.Count < MaxActiveJobs) {
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69 | // get an execution from the dispatcher and execute in grid via job-manager
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70 | Execution execution = dispatcher.GetNextJob();
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71 | AtomicOperation op = new AtomicOperation(execution.Engine.OperatorGraph.InitialOperator, execution.Engine.GlobalScope);
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72 | WaitHandle opWh = jobManager.BeginExecuteOperation(execution.Engine.GlobalScope, op);
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73 | wh.Add(opWh);
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74 | activeOperations.Add(opWh, op);
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75 | }
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76 | // wait until any job is finished
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77 | WaitHandle[] whArr = wh.ToArray();
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78 | int readyHandleIndex = WaitHandle.WaitAny(whArr);
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79 | WaitHandle readyHandle = whArr[readyHandleIndex];
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80 | AtomicOperation finishedOp = activeOperations[readyHandle];
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81 | Execution finishedExecution = activeExecutions[readyHandle];
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82 | wh.Remove(readyHandle);
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83 | activeExecutions.Remove(readyHandle);
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84 | activeOperations.Remove(readyHandle);
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85 | ProcessingEngine finishedEngine = null;
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86 | try {
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87 | finishedEngine = jobManager.EndExecuteOperation(finishedOp);
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88 | } catch (Exception badEx) {
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89 | Trace.WriteLine("CEDMA Executer: Exception in job execution thread. " + badEx.Message);
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90 | }
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91 | if (finishedEngine != null) {
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92 | Entity modelEntity = new Entity(Ontology.CedmaNameSpace+Guid.NewGuid());
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93 | store.Add(new Statement(modelEntity, Ontology.PredicateInstanceOf, Ontology.TypeGeneticProgrammingFunctionTree));
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94 | Entity targetVariableAttr = new Entity(Ontology.CedmaNameSpace+Guid.NewGuid());
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95 | store.Add(new Statement(modelEntity, Ontology.PredicateModelAttribute, targetVariableAttr));
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96 | store.Add(new Statement(targetVariableAttr, Ontology.PredicateModelAttributeName, new Literal("TargetVariable")));
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97 | store.Add(new Statement(targetVariableAttr, Ontology.PredicateModelAttributeValue, new Literal(finishedExecution.TargetVariable)));
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98 | store.Add(new Statement(targetVariableAttr, Ontology.PredicateModelAttributeType, Ontology.TypeCategoricalAttribute));
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99 | store.Add(new Statement(finishedExecution.DataSetEntity, Ontology.PredicateHasModel, modelEntity));
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100 | }
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101 | }
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102 | catch (Exception ex) {
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103 | Trace.WriteLine("CEDMA Executer: Exception in job-management thread. " + ex.Message);
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104 | }
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105 | }
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106 | }
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107 | }
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108 | }
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