annotate paper/slides/sample.html @ 42:affad4dda4cf

fix slide
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date Thu, 22 Feb 2018 05:12:57 +0900
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1 <!DOCTYPE html>
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2 <html>
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3 <head>
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4 <meta http-equiv="content-type" content="text/html;charset=utf-8">
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5 <title>分散版 Jungle データベースの性能測定方法</title>
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7 <meta name="generator" content="Slide Show (S9) v2.5.0 on Ruby 2.4.0 (2016-12-24) [x86_64-darwin14]">
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8 <meta name="author" content="仲松栞" >
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10 <!-- style sheet links -->
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18 <script src="s6/js/jquery.slideshow.js"></script>
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26 <script src="scripts/prettify.js"></script>
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29 $(document).ready( function() {
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30 Slideshow.init();
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41 </script>
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43 <!-- Better Browser Banner for Microsoft Internet Explorer (IE) -->
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44 <!--[if IE]>
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45 <script src="s6/js/jquery.microsoft.js"></script>
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50 </head>
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51 <body>
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57 <img src="s6/images/logo.svg" width="200px">
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58 </div>
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60 </div>
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62 <div class="presentation">
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64 <div class='slide cover'>
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65 <table width="90%" height="90%" border="0" align="center">
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66 <tr>
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67 <td>
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68 <div align="center">
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69 <h1><font color="#808db5">分散版 Jungle データベースの性能測定方法</font></h1>
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70 </div>
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71 </td>
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72 </tr>
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73 <tr>
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74 <td>
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75 <div align="left">
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76 仲松栞
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77 琉球大学 工学部 情報工学科 河野研
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78 <hr style="color:#ffcc00;background-color:#ffcc00;text-align:left;border:none;width:100%;height:0.2em;">
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79 </div>
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80 </td>
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81 </tr>
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82 </table>
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83 </div>
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84
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85 <div class='slide '>
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86 <!-- === begin markdown block ===
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87
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88 generated by markdown/1.2.0 on Ruby 2.4.0 (2016-12-24) [x86_64-darwin14]
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89 on 2018-02-22 05:11:14 +0900 with Markdown engine kramdown (1.13.2)
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90 using options {}
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91 -->
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92
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93 <!-- _S9SLIDE_ -->
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94 <h1 id="section">研究背景</h1>
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95 <ul>
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96 <li>スマートフォン等の普及により、Webサービスの利用者が増え、Webサーバーにかかる負荷も増大している</li>
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97 <li>この問題を解決する為に当研究室では、スケーラビリティを持つ分散データベースとしてJungleを開発している</li>
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98 <li>ここで言うスケーラビリティとは、複数のマシンに処理を分散させたりすることで、システムの処理能力を向上させる性能を指す</li>
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99 </ul>
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100
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101
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102 </div>
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103 <div class='slide '>
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104 <!-- _S9SLIDE_ -->
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105 <h1 id="section-1">問題提起</h1>
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106 <ul>
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107 <li>これまでJungleの分散性能を測定する方法はWebサーバー込みで行われていた</li>
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108 <li>Webサーバーを使用した測定方法は、Jungleに合わせたテストの準備が難しい</li>
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109 <li>また、出力結果がWebサーバーの性能に依存する為、Jungleの単体の分散性能を測定できなかった</li>
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110 </ul>
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111
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112
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113 </div>
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114 <div class='slide '>
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115 <!-- _S9SLIDE_ -->
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116 <h1 id="section-2">研究目的</h1>
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117 <ul>
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118 <li>Jungle単体の分散性能を測定できる環境を構築したい</li>
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119 <li>また、Jungleを用いるデータの伝搬方式や、トランザクションのmergeに関する研究開発をしやすくしたい</li>
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120 <li>本研究ではWebサーバーを取り除き、木構造に構築したJungleのノード上で、いくつかのノードから書き込みを伝搬させて、変更が全体に伝搬するまでの実験を行える環境を構築した</li>
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121 </ul>
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122
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123
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124 </div>
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125 <div class='slide '>
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126 <!-- _S9SLIDE_ -->
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127 <h1 id="jungle">JUngleデータベースの構造</h1>
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128 <ul>
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129 <li>一般的なウェブサイトの構造は大体が木構造であるため、データ構造として木構造を採
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130 用している</li>
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131 <li>木の変更を非破壊で行なっている</li>
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132 <li>木の変更をLogとして持っている</li>
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133 <li>そのLogを通信することにより、木を分散させる</li>
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134 <li>Logの通信には当研究で開発している分散フレームワークAliceを用いている</li>
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135 <li>異なる変更履歴を1つにまとめるMergeという機能を持っている</li>
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136 </ul>
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137
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138
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139 </div>
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140 <div class='slide '>
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141 <!-- _S9SLIDE_ -->
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142 <h1 id="jungle-1">Jungleの分散機構</h1>
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143 <ul>
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144 <li>Jungleの分散機構はツリートポロジーを想定している</li>
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145 <li>ツリー型であれば、一度トップまでデータを伝搬させることで木全体のデータを同期できる</li>
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146 </ul>
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147
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148 <div>
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149 <img src="./pictures/tree4.svg" alt="message" style="float: left;width: 50%;" />
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150 <div style="float: right; width: 50%;">
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151 <ol>
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152 <li>node1からnode0へデータが送られる</li>
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153 <li>node0でデータがupdateされ、そのデータがnode1,node2へ送られる</li>
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154 <li>node1からnode3,node4へデータが送られ、全体でデータの同期が完了する</li>
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155 </ol>
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156 </div>
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157 <div style="clear: both;"></div>
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158 </div>
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159
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160 <div align="center"><img src="./pictures/tree2.svg" style="center" /></div>
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161
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162
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163 </div>
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164 <div class='slide '>
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165 <!-- _S9SLIDE_ -->
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166 <h1 id="section-3">実験の準備</h1>
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167 <ul>
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168 <li>Webサーバーを取り除いた、Jungleの純粋な性能を計測する環境を構築する</li>
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169 <li>学科のVM16台でPCクラスタを構築し、クラスタ上にジョブスケジューラーTORQUEを設定した</li>
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170 <li>他の利用者とリソースが競合しないよう、TORQUEジョブスケジューラーを利用している</li>
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171 <li>本研究で用いたVMの性能を以下に示す</li>
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172 </ul>
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173 <table style="border-collapse: collapse;border:1px solid #000000;">
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174 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">マシン台数</th>
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175 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">OS</th>
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176 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">CPU</th>
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177 <th style="border:1px solid #000000;padding:5px 15px 5px 15px;">Memory</th>
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178
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179 <tr>
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180 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">16台</td>
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181 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">CentOS Linux release 7.2.1511 (Core) </td>
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182 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">QEMU Virtual CPU 2.3GHz</td>
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183 <td style="border:1px solid #000000;padding:5px 15px 5px 15px;">1GB</td>
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184 </tr>
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185 </table>
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188 </div>
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189 <div class='slide '>
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190 <!-- _S9SLIDE_ -->
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191 <h1 id="torque-resource-manager">TORQUE Resource Manager</h1>
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192 <ul>
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193 <li>TORQUEはジョブスケジューラーであり、分散された複数のノードに一度にジョブを投入することができる為、本研究で採用した</li>
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194 <li>TORQUEはジョブを管理・投下・実行する3つの処理で構成されている</li>
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195 <li>ジョブの管理・投下を担うヘッダーノードから、ジョブの実行を担う計算ノードへジョブが投下される</li>
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196 <li>本実験では、TORQUEを用いて、計測用のスクリプトを15台のJungleに一度に投入するスクリプトを投入した</li>
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197 </ul>
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198
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199 <div align="center"><img src="./pictures/torque2.svg" style="center" /></div>
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200
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201
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202 </div>
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203 <div class='slide '>
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204 <!-- _S9SLIDE_ -->
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205 <h1 id="torque">TORQUEの使い方</h1>
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206 <ul lang="c">
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207 <li>ジョブはqsubコマンドで投入する</li>
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208 </ul>
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209 <pre><code>$ qsub scripts/LogupdateTest-qsub.sh
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210 </code></pre>
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211 <ul lang="c">
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212 <li>ジョブの処理状況はqstatコマンドで確認できる
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213 <ul>
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214 <li>Sは現在のジョブの処理状況を示し、Rは処理中であり、Cは処理完了を表している</li>
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215 </ul>
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216 </li>
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217 </ul>
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218 <pre><code>$ qstat
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219
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220 Job ID Name User Time Use S Queue
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221 ------------------------- ---------------- --------------- -------- - -----
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222 563.tino-VM1 LogUpdateTest ie-user 0 C jungle
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223 </code></pre>
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224
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225
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226 </div>
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227 <div class='slide '>
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228 <!-- _S9SLIDE_ -->
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229 <h1 id="section-4">これまでのまとめ</h1>
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230 <ul>
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231 <li>以上が実験の環境についての説明である</li>
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232 <li>つづいて、このTORQUEを用いて、Jungleの分散性能を測定する</li>
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233 </ul>
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234
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235
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236 </div>
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237 <div class='slide '>
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238 <!-- _S9SLIDE_ -->
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239 <h1 id="section-5">実験</h1>
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240 <ul>
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241 <li>以下にJungleの分散性能を測定する手順を示す</li>
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242 </ul>
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243 <div>
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244 <img src="./pictures/gaiyou3.svg" alt="message" style="float: left;width: 50%;" />
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245 <div style="float: right; width: 50%;">
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246 <ul>
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247 <li>1台でTopologyManagerを起動し,残りの15台でJungleを1つずつ起動する</li>
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248 <li>TopologyManagerは指定されたトポロジーの情報に従い、接続先の情報をJungleノードに送る</li>
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249 <li>Jungleは送られてきた接続先のIPアドレス、ポート番号、接続名に従い、トポロジーを形成する</li>
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250 <li>1~7台の子ノードのJungleに書き込んだデータがrootノードのJungleへMergeし終わるまでの時間を計測する</li>
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251 </ul>
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252 </div>
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253 <div style="clear: both;"></div>
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254 </div>
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255
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256
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257 </div>
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258 <div class='slide '>
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259 <!-- _S9SLIDE_ -->
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260 <h1 id="topologymanager">TopologyManager</h1>
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261 <ul>
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262 <li>TopologyManagerは、Aliceが持つネットワーク上の複数のサーバーノードにトポロジーを形成さる機能である</li>
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263 <li>TopologyManagerにトポロジーの内容が書かれたトポロジーファイルを渡すことで、任意のトポロジーを構成させることができる。</li>
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264 <li>本実験ではTopologyManagerにツリー型のトポロジーファイルを渡すことで、15台のJungleでツリートポロジーを構成させた。</li>
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265 </ul>
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266
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267 <div align="center"><img src="./pictures/topologymanager6.svg" style="center" /></div>
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268
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269
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270 </div>
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271 <div class='slide '>
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272 <!-- _S9SLIDE_ -->
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273 <h1 id="section-6">実験をするにあたりぶつかった問題点とその対処法</h1>
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274 <ul>
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275 <li>ところが、TORQUEにジョブを投入しても、実験がうまくいかなかった</li>
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276 <li>原因は、Jungleには、自身の処理を終了させる機能が備わっていないことだった
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277 <ul>
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278 <li>Jungleがデータを書き込み終わる時に、TopologyManagerへnullLogを送るコードを実装した</li>
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279 <li>TopologyManagerはnullLogを受け取ることで、全てのノードがタスクを終了したことを確認する</li>
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280 <li>確認とともに、TopologyManagerはJungleへ”finish”を送り、テストを終了させる</li>
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281 </ul>
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282 </li>
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283 </ul>
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284
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285
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286 </div>
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287 <div class='slide '>
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288 <!-- _S9SLIDE_ -->
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289 <h1 id="section-7">実験の準備の為に行なったこと</h1>
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290 <ul>
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291 <li>TORQUEに使用するperlスクリプトを用意した</li>
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292 <li></li>
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293 <li>また、環境構築の際に、JungleとAliceは異なるパッケージで作られていた為、バージョンがズレていた
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294 <ul>
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295 <li>mavenリポジトリのキャッシュをクリアし、アップデートを行うことで修正した</li>
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296 </ul>
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297 </li>
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298 </ul>
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299
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300
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301 </div>
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302 <div class='slide '>
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303 <!-- _S9SLIDE_ -->
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304 <h1 id="section-8">まとめと今後の課題</h1>
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305 <ul>
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306 <li>本研究ではJungleの分散性能の測定方法の提案と測定環境の構築を行なった</li>
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307 <li>それにあたり、Jungleが自身を終了させることができない問題が起きた
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308 <ul>
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309 <li>データ書き込みの最後にTopologyManagerにnullLogを送り、Jungleを終了させるコードを実装した</li>
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310 </ul>
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311 </li>
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312 <li>今回構築した測定環境で、現在のJungleのmergeや分散アルゴリズムを研究したい</li>
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313 <li>再接続時に、Jungleのノードのデータを再ロードできるプロトコルを定義したい
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314 <ul>
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315 <li>方法としては、他のノード、もしくはディスクからデータを読み込む</li>
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316 </ul>
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317 </li>
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318 <li>ディスク上にあるJungleの木を読み出すプロトコルを定義したい</li>
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319 </ul>
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320
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321
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322 </div>
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323 <div class='slide '>
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324 <!-- _S9SLIDE_ -->
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325 <h1 id="alice">分散フレームワークAlice</h1>
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326 <ul>
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327 <li>Aliceは当研究室で開発している並列分散フレームワークである</li>
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328 <li>
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329 <p>Alice は、ネットワーク上の複数のサーバーノードにトポロジーを形成させ、通信する機能を提供する</p>
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330 </li>
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331 <li>本実験では、Aliceを用いて15台のJungleにツリートポロジーを形成させ、子ノードとJungleノード間&gt;のデータの通信を行なった</li>
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332 </ul>
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333
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334
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335 </div>
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336 <div class='slide '>
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337 <!-- _S9SLIDE_ -->
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338 <h1 id="section-9">計測結果(1/2)</h1>
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339 <ul lang="c">
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340 <li>1台に書き込み/1回書き込み</li>
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341 </ul>
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342 <pre><code>TopologymanagerTime = 5285
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343
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344 hostname: node6 time = 214
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345 </code></pre>
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346 <ul lang="c">
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347 <li>7台に書き込み/1回書き込み</li>
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348 </ul>
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349 <pre><code>TopologymanagerTime = 5115
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350
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351 hostname: node9 time = 98
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352
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353 </code></pre>
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354
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355
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356 </div>
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357 <div class='slide '>
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358 <!-- _S9SLIDE_ -->
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359 <h1 id="section-10">計測結果(2/2)</h1>
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360 <ul lang="c">
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361 <li>1台に書き込み/100回書き込み</li>
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362 </ul>
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363 <pre><code>TopologymanagerTime = 5425
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364
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365 hostname: node14 time = 278
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366 hostname: node14 time = 210
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367 ...
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368 hostname: node14 time = 5
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369 hostname: node14 time = 4
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370 </code></pre>
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371 <ul lang="c">
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372 <li>7台に書き込み/100回書き込み</li>
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373 </ul>
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374 <pre><code>TopologymanagerTime = 5351
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375
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376 hostname: node10 time = 290
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377 hostname: node10 time = 209
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378 ...
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379 hostname: node10 time = 17
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380 hostname: node10 time = 16
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381 </code></pre>
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382
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383
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384 </div>
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385 <div class='slide '>
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386 <!-- _S9SLIDE_ -->
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387 <h1 lang="c" id="section-11">ジョブスクリプト</h1>
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388 <pre><code>#!/bin/sh
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389 #PBS -q jungle
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390 #PBS -N LogUpdateTest
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391 #PBS -l nodes=16,walltime=00:08:00
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392
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393 cd /mnt/data/jungle_workspace/Log
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394 /usr/bin/perl /mnt/data/jungle_workspace/scripts/LogupdateTest.pl
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395 </code></pre>
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396 <ul>
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397 <li>-q … queueを指定。</li>
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398 <li>-N … 実行結果の出力ファイル名</li>
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399 <li>nodes … 使用するnodeの台数、</li>
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400 <li>walltime … 実行制限時間</li>
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401 <li>Logディレクトリに移動し,今回政策したperlスクリプトを実行している</li>
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402 <li>実行結果がLogディレクトリに吐き出される</li>
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403 </ul>
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404
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405
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406 </div>
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407 <div class='slide '>
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408 <!-- _S9SLIDE_ -->
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409 <h1 lang="c" id="perl">perlスクリプト</h1>
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410 <pre><code>mysystem("cd $jungleDir; ruby scripts/tree.rb $nodeNum &gt; scripts/tree.dot");
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411 mkdir "$logFile";
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412 mysystem("ssh $nodes[0] \"cd $logFile;java -cp ../../build/libs/logupdateTest-1.1.jar alice.topology.manager.TopologyManager -conf ../../scripts/tree.dot -p 10000 --showTime --noKeepAlive &gt; $logNum\" ",1);
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413 $logNum++;
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414 sleep 10;
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415 for my $i (1..($#nodes-7)) {
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416 mysystem("ssh $nodes[$i] \"cd $logFile;java -jar ../../build/libs/logupdateTest-1.1.jar -host $nodes[0] -p 10003 -port 10000 --noKeepAlive &gt; $logNum\" &amp; ");
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417 $logNum++;
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418 }
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419
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420 for my $j (($#nodes-6)..($#nodes)){
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421 mysystem("ssh $nodes[$j] \"cd $logFile;java -jar ../../build/libs/logupdateTest-1.1.jar -host $nodes[0] -p 10003 -port 10000 -write -count 100 --noKeepAlive &gt; $logNum\" &amp;" );
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422 }
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423 for (@wait) {
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424 wait; #1がついている部分だけweit TopologyManagerだけweit
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425 }
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426 </code></pre>
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427
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428
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429 </div>
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430 <div class='slide '>
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431 <!-- _S9SLIDE_ -->
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432 <h1 id="section-12">その言葉を待っていました</h1>
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433 <ul>
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434 <li>開発中です</li>
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435 </ul>
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436
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437 <!-- === end markdown block === -->
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438 </div>
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439
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440
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441 </div><!-- presentation -->
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442 </body>
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443 </html>