1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2012 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.Drawing;
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25 | using System.Linq;
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26 | using System.Threading;
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27 | using System.Threading.Tasks;
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28 | using HeuristicLab.Collections;
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29 | using HeuristicLab.Common;
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30 | using HeuristicLab.Core;
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31 | using HeuristicLab.Data;
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32 | using HeuristicLab.Optimization;
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33 | using HeuristicLab.Parameters;
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34 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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35 | using HeuristicLab.PluginInfrastructure;
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36 |
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37 | namespace HeuristicLab.Algorithms.Benchmarks {
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38 | [Item("Benchmark Algorithm", "An algorithm to execute performance benchmarks (Linpack, Dhrystone, Whetstone, etc.).")]
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39 | [Creatable("Algorithms")]
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40 | [StorableClass]
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41 | public sealed class BenchmarkAlgorithm : IAlgorithm {
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42 | private CancellationTokenSource cancellationTokenSource;
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43 |
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44 | public string ItemName {
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45 | get { return ItemAttribute.GetName(this.GetType()); }
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46 | }
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47 | public string ItemDescription {
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48 | get { return ItemAttribute.GetDescription(this.GetType()); }
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49 | }
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50 | public Version ItemVersion {
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51 | get { return ItemAttribute.GetVersion(this.GetType()); }
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52 | }
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53 | public static Image StaticItemImage {
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54 | get { return HeuristicLab.Common.Resources.VSImageLibrary.Event; }
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55 | }
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56 | public Image ItemImage {
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57 | get {
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58 | if (ExecutionState == ExecutionState.Prepared) return HeuristicLab.Common.Resources.VSImageLibrary.ExecutablePrepared;
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59 | else if (ExecutionState == ExecutionState.Started) return HeuristicLab.Common.Resources.VSImageLibrary.ExecutableStarted;
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60 | else if (ExecutionState == ExecutionState.Paused) return HeuristicLab.Common.Resources.VSImageLibrary.ExecutablePaused;
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61 | else if (ExecutionState == ExecutionState.Stopped) return HeuristicLab.Common.Resources.VSImageLibrary.ExecutableStopped;
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62 | else return ItemAttribute.GetImage(this.GetType());
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63 | }
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64 | }
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65 |
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66 | [Storable]
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67 | private DateTime lastUpdateTime;
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68 |
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69 | [Storable]
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70 | private IBenchmark benchmark;
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71 | public IBenchmark Benchmark {
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72 | get { return benchmark; }
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73 | set {
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74 | if (value == null) throw new ArgumentNullException();
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75 | benchmark = value;
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76 | }
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77 | }
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78 |
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79 | [Storable]
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80 | private ExecutionState executionState;
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81 | public ExecutionState ExecutionState {
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82 | get { return executionState; }
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83 | private set {
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84 | if (executionState != value) {
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85 | executionState = value;
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86 | OnExecutionStateChanged();
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87 | OnItemImageChanged();
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88 | }
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89 | }
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90 | }
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91 |
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92 | [Storable]
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93 | private TimeSpan executionTime;
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94 | public TimeSpan ExecutionTime {
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95 | get { return executionTime; }
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96 | private set {
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97 | executionTime = value;
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98 | OnExecutionTimeChanged();
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99 | }
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100 | }
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101 |
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102 | [Storable]
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103 | private bool storeAlgorithmInEachRun;
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104 | public bool StoreAlgorithmInEachRun {
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105 | get { return storeAlgorithmInEachRun; }
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106 | set {
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107 | if (storeAlgorithmInEachRun != value) {
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108 | storeAlgorithmInEachRun = value;
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109 | OnStoreAlgorithmInEachRunChanged();
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110 | }
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111 | }
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112 | }
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113 |
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114 | [Storable]
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115 | private int runsCounter;
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116 |
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117 | [Storable]
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118 | private RunCollection runs = new RunCollection();
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119 | public RunCollection Runs {
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120 | get { return runs; }
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121 | private set {
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122 | if (value == null) throw new ArgumentNullException();
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123 | if (runs != value) {
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124 | if (runs != null) DeregisterRunsEvents();
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125 | runs = value;
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126 | if (runs != null) RegisterRunsEvents();
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127 | }
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128 | }
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129 | }
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130 |
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131 | [Storable]
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132 | private ResultCollection results;
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133 | public ResultCollection Results {
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134 | get { return results; }
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135 | }
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136 |
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137 | public Type ProblemType {
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138 | get {
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139 | // BenchmarkAlgorithm does not have a problem, so return a type which is no problem for sure
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140 | return typeof(BenchmarkAlgorithm);
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141 | }
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142 | }
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143 |
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144 | public IProblem Problem {
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145 | get { return null; }
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146 | set { throw new NotImplementedException("BenchmarkAlgorithm does not have a problem."); }
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147 | }
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148 |
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149 | [Storable]
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150 | private string name;
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151 | public string Name {
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152 | get { return name; }
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153 | set {
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154 | if (!CanChangeName) throw new NotSupportedException("Name cannot be changed.");
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155 | if (!(name.Equals(value) || (value == null) && (name == string.Empty))) {
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156 | CancelEventArgs<string> e = value == null ? new CancelEventArgs<string>(string.Empty) : new CancelEventArgs<string>(value);
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157 | OnNameChanging(e);
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158 | if (!e.Cancel) {
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159 | name = value == null ? string.Empty : value;
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160 | OnNameChanged();
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161 | runs.OptimizerName = name;
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162 | }
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163 | }
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164 | }
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165 | }
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166 | public bool CanChangeName {
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167 | get { return true; }
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168 | }
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169 |
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170 | [Storable]
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171 | private string description;
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172 | public string Description {
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173 | get { return description; }
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174 | set {
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175 | if (!CanChangeDescription) throw new NotSupportedException("Description cannot be changed.");
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176 | if (!(description.Equals(value) || (value == null) && (description == string.Empty))) {
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177 | description = value == null ? string.Empty : value;
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178 | OnDescriptionChanged();
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179 | }
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180 | }
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181 | }
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182 | public bool CanChangeDescription {
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183 | get { return true; }
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184 | }
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185 |
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186 | [Storable]
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187 | private ParameterCollection parameters = new ParameterCollection();
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188 | public IKeyedItemCollection<string, IParameter> Parameters {
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189 | get { return parameters; }
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190 | }
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191 | private ReadOnlyKeyedItemCollection<string, IParameter> readOnlyParameters;
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192 | IKeyedItemCollection<string, IParameter> IParameterizedItem.Parameters {
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193 | get {
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194 | if (readOnlyParameters == null) readOnlyParameters = parameters.AsReadOnly();
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195 | return readOnlyParameters;
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196 | }
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197 | }
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198 |
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199 | public IEnumerable<IOptimizer> NestedOptimizers {
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200 | get { return Enumerable.Empty<IOptimizer>(); }
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201 | }
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202 |
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203 | #region Parameter Properties
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204 | public IConstrainedValueParameter<IBenchmark> BenchmarkParameter {
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205 | get { return (IConstrainedValueParameter<IBenchmark>)Parameters["Benchmark"]; }
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206 | }
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207 | private ValueParameter<IntValue> ChunkSizeParameter {
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208 | get { return (ValueParameter<IntValue>)Parameters["ChunkSize"]; }
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209 | }
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210 | private ValueParameter<DoubleValue> TimeLimitParameter {
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211 | get { return (ValueParameter<DoubleValue>)Parameters["TimeLimit"]; }
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212 | }
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213 | #endregion
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214 |
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215 | #region Constructors
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216 | [StorableConstructor]
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217 | private BenchmarkAlgorithm(bool deserializing) { }
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218 | private BenchmarkAlgorithm(BenchmarkAlgorithm original, Cloner cloner) {
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219 | if (original.ExecutionState == ExecutionState.Started) throw new InvalidOperationException(string.Format("Clone not allowed in execution state \"{0}\".", ExecutionState));
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220 | cloner.RegisterClonedObject(original, this);
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221 | name = original.name;
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222 | description = original.description;
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223 | parameters = cloner.Clone(original.parameters);
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224 | readOnlyParameters = null;
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225 | executionState = original.executionState;
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226 | executionTime = original.executionTime;
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227 | storeAlgorithmInEachRun = original.storeAlgorithmInEachRun;
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228 | runsCounter = original.runsCounter;
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229 | Runs = cloner.Clone(original.runs);
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230 | results = cloner.Clone(original.results);
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231 | }
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232 | public BenchmarkAlgorithm() {
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233 | name = ItemName;
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234 | description = ItemDescription;
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235 | parameters = new ParameterCollection();
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236 | readOnlyParameters = null;
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237 | executionState = ExecutionState.Stopped;
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238 | executionTime = TimeSpan.Zero;
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239 | storeAlgorithmInEachRun = false;
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240 | runsCounter = 0;
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241 | Runs = new RunCollection() { OptimizerName = name };
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242 | results = new ResultCollection();
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243 | CreateParameters();
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244 | DiscoverBenchmarks();
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245 | Prepare();
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246 | }
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247 | #endregion
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248 |
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249 | private void CreateParameters() {
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250 | Parameters.Add(new ValueParameter<IntValue>("ChunkSize", "The size in MB of the chunk data array that is generated.", new IntValue(0)));
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251 | Parameters.Add(new ValueParameter<DoubleValue>("TimeLimit", "The time limit in minutes for a benchmark run (zero means a fixed number of iterations).", new DoubleValue(0)));
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252 | }
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253 | private void DiscoverBenchmarks() {
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254 | var benchmarks = from t in ApplicationManager.Manager.GetTypes(typeof(IBenchmark))
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255 | select t;
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256 | ItemSet<IBenchmark> values = new ItemSet<IBenchmark>();
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257 | foreach (var benchmark in benchmarks) {
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258 | IBenchmark b = (IBenchmark)Activator.CreateInstance(benchmark);
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259 | values.Add(b);
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260 | }
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261 | string paramName = "Benchmark";
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262 | if (!Parameters.ContainsKey(paramName)) {
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263 | if (values.Count > 0) {
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264 | Parameters.Add(new ConstrainedValueParameter<IBenchmark>(paramName, "The benchmark which should be executed.", values, values.First(a => a is IBenchmark)));
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265 | } else {
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266 | Parameters.Add(new ConstrainedValueParameter<IBenchmark>(paramName, "The benchmark which should be executed.", values));
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267 | }
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268 | }
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269 | }
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270 |
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271 | public IDeepCloneable Clone(Cloner cloner) {
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272 | return new BenchmarkAlgorithm(this, cloner);
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273 | }
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274 | public object Clone() {
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275 | return Clone(new Cloner());
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276 | }
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277 |
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278 | public override string ToString() {
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279 | return Name;
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280 | }
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281 |
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282 | public void Prepare() {
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283 | if ((ExecutionState != ExecutionState.Prepared) && (ExecutionState != ExecutionState.Paused) && (ExecutionState != ExecutionState.Stopped))
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284 | throw new InvalidOperationException(string.Format("Prepare not allowed in execution state \"{0}\".", ExecutionState));
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285 | results.Clear();
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286 | OnPrepared();
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287 | }
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288 | public void Prepare(bool clearRuns) {
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289 | if ((ExecutionState != ExecutionState.Prepared) && (ExecutionState != ExecutionState.Paused) && (ExecutionState != ExecutionState.Stopped))
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290 | throw new InvalidOperationException(string.Format("Prepare not allowed in execution state \"{0}\".", ExecutionState));
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291 | if (clearRuns) runs.Clear();
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292 | Prepare();
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293 | }
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294 | public void Pause() {
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295 | if (ExecutionState != ExecutionState.Started)
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296 | throw new InvalidOperationException(string.Format("Pause not allowed in execution state \"{0}\".", ExecutionState));
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297 | }
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298 | public void Stop() {
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299 | if ((ExecutionState != ExecutionState.Started) && (ExecutionState != ExecutionState.Paused))
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300 | throw new InvalidOperationException(string.Format("Stop not allowed in execution state \"{0}\".", ExecutionState));
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301 | cancellationTokenSource.Cancel();
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302 | }
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303 | public void Start() {
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304 | cancellationTokenSource = new CancellationTokenSource();
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305 | OnStarted();
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306 | Task task = Task.Factory.StartNew(Run, cancellationTokenSource.Token, cancellationTokenSource.Token);
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307 | task.ContinueWith(t => {
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308 | try {
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309 | t.Wait();
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310 | }
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311 | catch (AggregateException ex) {
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312 | try {
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313 | ex.Flatten().Handle(x => x is OperationCanceledException);
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314 | }
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315 | catch (AggregateException remaining) {
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316 | if (remaining.InnerExceptions.Count == 1) OnExceptionOccurred(remaining.InnerExceptions[0]);
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317 | else OnExceptionOccurred(remaining);
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318 | }
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319 | }
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320 |
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321 | cancellationTokenSource.Dispose();
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322 | cancellationTokenSource = null;
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323 | OnStopped();
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324 | });
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325 | }
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326 |
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327 | private void Run(object state) {
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328 | CancellationToken cancellationToken = (CancellationToken)state;
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329 | lastUpdateTime = DateTime.Now;
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330 | System.Timers.Timer timer = new System.Timers.Timer(250);
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331 | timer.AutoReset = true;
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332 | timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
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333 | timer.Start();
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334 | try {
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335 | Benchmark = (IBenchmark)BenchmarkParameter.ActualValue;
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336 | int chunkSize = ((IntValue)ChunkSizeParameter.ActualValue).Value;
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337 | if (chunkSize > 0) {
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338 | Benchmark.ChunkData = CreateChunkData(chunkSize);
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339 | } else if (chunkSize < 0) {
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340 | throw new ArgumentException("ChunkSize must not be negativ.");
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341 | }
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342 | TimeSpan timelimit = TimeSpan.FromMinutes(((DoubleValue)TimeLimitParameter.ActualValue).Value);
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343 | if (timelimit.TotalMilliseconds < 0) {
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344 | throw new ArgumentException("TimeLimit must not be negativ. ");
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345 | }
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346 | Benchmark.TimeLimit = timelimit;
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347 | Benchmark.Run(cancellationToken, results);
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348 | }
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349 | catch (OperationCanceledException) {
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350 | }
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351 | finally {
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352 | timer.Elapsed -= new System.Timers.ElapsedEventHandler(timer_Elapsed);
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353 | timer.Stop();
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354 | ExecutionTime += DateTime.Now - lastUpdateTime;
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355 | }
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356 | }
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357 |
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358 | private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e) {
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359 | System.Timers.Timer timer = (System.Timers.Timer)sender;
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360 | timer.Enabled = false;
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361 | DateTime now = DateTime.Now;
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362 | ExecutionTime += now - lastUpdateTime;
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363 | lastUpdateTime = now;
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364 | timer.Enabled = true;
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365 | }
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366 |
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367 | public void CollectResultValues(IDictionary<string, IItem> values) {
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368 | values.Add("Execution Time", new TimeSpanValue(ExecutionTime));
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369 | CollectResultsRecursively("", Results, values);
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370 | }
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371 | private void CollectResultsRecursively(string path, ResultCollection results, IDictionary<string, IItem> values) {
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372 | foreach (IResult result in results) {
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373 | values.Add(path + result.Name, result.Value);
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374 | ResultCollection childCollection = result.Value as ResultCollection;
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375 | if (childCollection != null) {
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376 | CollectResultsRecursively(path + result.Name + ".", childCollection, values);
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377 | }
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378 | }
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379 | }
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380 | public void CollectParameterValues(IDictionary<string, IItem> values) {
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381 | foreach (IValueParameter param in parameters.OfType<IValueParameter>()) {
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382 | if (param.GetsCollected && param.Value != null) values.Add(param.Name, param.Value);
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383 | if (param.Value is IParameterizedItem) {
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384 | Dictionary<string, IItem> children = new Dictionary<string, IItem>();
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385 | ((IParameterizedItem)param.Value).CollectParameterValues(children);
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386 | foreach (string key in children.Keys)
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387 | values.Add(param.Name + "." + key, children[key]);
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388 | }
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389 | }
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390 | }
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391 |
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392 | private byte[][] CreateChunkData(int megaBytes) {
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393 | if (megaBytes <= 0) {
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394 | throw new ArgumentException("MegaBytes must be greater than zero", "megaBytes");
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395 | }
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396 | Random random = new Random();
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397 | byte[][] chunk = new byte[megaBytes][];
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398 | for (int i = 0; i < chunk.Length; i++) {
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399 | chunk[i] = new byte[1024 * 1024];
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400 | random.NextBytes(chunk[i]);
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401 | }
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402 | return chunk;
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403 | }
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404 |
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405 | #region Events
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406 | public event EventHandler ExecutionStateChanged;
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407 | private void OnExecutionStateChanged() {
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408 | EventHandler handler = ExecutionStateChanged;
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409 | if (handler != null) handler(this, EventArgs.Empty);
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410 | }
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411 | public event EventHandler ExecutionTimeChanged;
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412 | private void OnExecutionTimeChanged() {
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413 | EventHandler handler = ExecutionTimeChanged;
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414 | if (handler != null) handler(this, EventArgs.Empty);
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415 | }
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416 | public event EventHandler ProblemChanged { add { } remove { } }
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417 | public event EventHandler StoreAlgorithmInEachRunChanged;
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418 | private void OnStoreAlgorithmInEachRunChanged() {
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419 | EventHandler handler = StoreAlgorithmInEachRunChanged;
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420 | if (handler != null) handler(this, EventArgs.Empty);
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421 | }
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422 | public event EventHandler Prepared;
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423 | private void OnPrepared() {
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424 | ExecutionState = ExecutionState.Prepared;
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425 | ExecutionTime = TimeSpan.Zero;
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426 | foreach (IStatefulItem statefulObject in this.GetObjectGraphObjects().OfType<IStatefulItem>()) {
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427 | statefulObject.InitializeState();
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428 | }
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429 | EventHandler handler = Prepared;
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430 | if (handler != null) handler(this, EventArgs.Empty);
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431 | }
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432 | public event EventHandler Started;
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433 | private void OnStarted() {
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434 | ExecutionState = ExecutionState.Started;
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435 | EventHandler handler = Started;
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436 | if (handler != null) handler(this, EventArgs.Empty);
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437 | }
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438 | public event EventHandler Paused;
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439 | private void OnPaused() {
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440 | ExecutionState = ExecutionState.Paused;
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441 | EventHandler handler = Paused;
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442 | if (handler != null) handler(this, EventArgs.Empty);
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443 | }
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444 | public event EventHandler Stopped;
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445 | private void OnStopped() {
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446 | ExecutionState = ExecutionState.Stopped;
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447 | foreach (IStatefulItem statefulObject in this.GetObjectGraphObjects().OfType<IStatefulItem>()) {
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448 | statefulObject.ClearState();
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449 | }
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450 | runsCounter++;
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451 | runs.Add(new Run(string.Format("{0} Run {1}", Name, runsCounter), this));
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452 | EventHandler handler = Stopped;
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453 | if (handler != null) handler(this, EventArgs.Empty);
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454 | }
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455 | public event EventHandler<EventArgs<Exception>> ExceptionOccurred;
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456 | private void OnExceptionOccurred(Exception exception) {
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457 | EventHandler<EventArgs<Exception>> handler = ExceptionOccurred;
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458 | if (handler != null) handler(this, new EventArgs<Exception>(exception));
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459 | }
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460 |
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461 | public event EventHandler<CancelEventArgs<string>> NameChanging;
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462 | private void OnNameChanging(CancelEventArgs<string> e) {
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463 | var handler = NameChanging;
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464 | if (handler != null) handler(this, e);
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465 | }
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466 |
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467 | public event EventHandler NameChanged;
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468 | private void OnNameChanged() {
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469 | var handler = NameChanged;
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470 | if (handler != null) handler(this, EventArgs.Empty);
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471 | OnToStringChanged();
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472 | }
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473 |
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474 | public event EventHandler DescriptionChanged;
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475 | private void OnDescriptionChanged() {
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476 | var handler = DescriptionChanged;
|
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477 | if (handler != null) handler(this, EventArgs.Empty);
|
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478 | }
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479 |
|
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480 | public event EventHandler ItemImageChanged;
|
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481 | private void OnItemImageChanged() {
|
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482 | EventHandler handler = ItemImageChanged;
|
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483 | if (handler != null) handler(this, EventArgs.Empty);
|
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484 | }
|
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485 | public event EventHandler ToStringChanged;
|
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486 | private void OnToStringChanged() {
|
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487 | EventHandler handler = ToStringChanged;
|
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488 | if (handler != null) handler(this, EventArgs.Empty);
|
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489 | }
|
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490 |
|
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491 | private void DeregisterRunsEvents() {
|
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492 | runs.CollectionReset -= new CollectionItemsChangedEventHandler<IRun>(Runs_CollectionReset);
|
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493 | }
|
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494 | private void RegisterRunsEvents() {
|
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495 | runs.CollectionReset += new CollectionItemsChangedEventHandler<IRun>(Runs_CollectionReset);
|
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496 | }
|
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497 | private void Runs_CollectionReset(object sender, CollectionItemsChangedEventArgs<IRun> e) {
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498 | runsCounter = runs.Count;
|
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499 | }
|
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500 | #endregion
|
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501 | }
|
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502 | }
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