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annotate TaskManager/Cell/CellTaskManagerImpl.cc @ 936:14fb1c888931

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sat, 31 Jul 2010 05:31:12 +0900
parents e015a4e5e4b0
children 9689cba44964
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1 #define DEBUG
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2 #include "error.h"
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5 #include <string.h>
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6 #include "CellTaskManagerImpl.h"
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7 #include "HTaskInfo.h"
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8 #include "SchedTask.h"
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9 #include "MainScheduler.h"
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10 #include "types.h"
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11 #include "SysFunc.h"
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12
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13 static void send_alloc_reply(CellTaskManagerImpl *tm, int id, SpeThreads *speThreads);
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15 CellTaskManagerImpl::~CellTaskManagerImpl()
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16 {
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17 delete speThreads;
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18 delete [] speTaskList;
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19
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20 delete ppeManager;
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21 }
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22
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23 void
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24 CellTaskManagerImpl::init()
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25 {
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26 spe_running = 0;
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27
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28 // 実行可能な HTask のリスト。 FifoTaskManager と共有される
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29 activeTaskQueue = new HTaskInfo();
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30 // HTask の factory。 HTaskInfo ならなんでもいい。
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31 htaskImpl = activeTaskQueue ; // any HTaskInfo
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32
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33 speThreads = new SpeThreads(machineNum);
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34 speThreads->init();
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35
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36 // 実行される Task 用の パイプライン用のダブルバッファ
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37 speTaskList = new TaskListInfoPtr[machineNum]; // spe上の走っている Task の配列
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38 taskListInfo = new TaskListInfoPtr[machineNum]; // 次に走る Task の配列
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39
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40 for (int i = 0; i < machineNum; i++) {
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41 taskListInfo[i] = new TaskListInfo();
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42 speTaskList[i] = new TaskListInfo();
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43 }
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44
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45 // PPE 側の管理をする Manager
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46 ppeManager = new FifoTaskManagerImpl(machineNum);
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47 // 大半のTaskQueueInfoは、共有される
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48 MainScheduler *mscheduler = new MainScheduler;
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49 set_scheduler(mscheduler);
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50 ppeManager->init(mscheduler, this); // ここで HTaskInfo が共有される。
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52 ppeManager->get_scheduler()->set_manager(this);
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53
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54 // Task 内からManager->task_create() とかするときに必要なTaskManager。
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55 // 現状では ppe 側からしか動かない
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56 // spe 側から Task create できない
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57 schedTaskManager = new SchedTask();
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58 schedTaskManager->init(0,0,0,ppeManager->get_scheduler());
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59 ppeManager->schedTaskManager = schedTaskManager;
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60 }
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61
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62 void
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63 CellTaskManagerImpl::append_activeTask(HTaskPtr task)
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64 {
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65 if (task->cpu_type == CPU_PPE) {
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66 ppeManager->append_activeTask(task);
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67 } else {
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68 activeTaskQueue->addLast(task);
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69 }
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70 }
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71
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72 // SPE_ANY が指定されていた時に
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73 // これをインクリメントしつつ呼ぶことにする。
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74 // 乱数使ってもいいけどさ。
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75 int cur_anySpeid = 0;
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76
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77 /**
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78 * ActiveTaskQueue から Task を
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79 * 各 SPE に渡す TaskList に入れる
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80 *
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81 * ここの activeTaskQueue は FifoTaskManagerImpl のと意味が違い、
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82 * spe に渡される Task だけ入っている
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83 */
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84 void
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85 CellTaskManagerImpl::set_runTaskList()
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86 {
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87 int speid;
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88
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89 while (HTaskPtr htask = activeTaskQueue->poll()) {
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90
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91 if (htask->cpu_type == SPE_ANY) {
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92 speid = cur_anySpeid++;
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93 cur_anySpeid = (cur_anySpeid < machineNum)
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94 ? cur_anySpeid : 0;
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95 } else {
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96 // -1 してるのは
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97 // htask->cpu_type - CPU_SPE で
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98 // SPE0 = 1, SPE1 = 2, ... SPE5 = 6 ってなってるので
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99 // 配列的 (SPE0 = arr[0], SPE1 = arr[1]) にするため
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100 speid = htask->cpu_type - CPU_SPE - 1;
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101
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102 // SPU の数以上が指定されていれば
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103 // とりあえず MAX_USE_SPE_NUM (実際に動く SPE の最大数) で
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104 // あまり求めてそれを使うことにする。
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105 // ここで判定するもんでもないか？
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106 if (speid >= machineNum) {
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107 speid %= machineNum;
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108 }
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109 }
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110 set_taskList(htask, taskListInfo[speid]);
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111 }
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112 }
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113
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114 void
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115 CellTaskManagerImpl::sendTaskList()
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116 {
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117 for (int i = 0; i < machineNum; i++) {
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118 if (! taskListInfo[i]->empty() ) {
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119 mail_check(i);
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120 // SPE に送る TaskList の準備
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121 send_taskList(i);
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122 spe_running++;
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123 }
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124 }
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125 }
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126
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127 void
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128 CellTaskManagerImpl::poll()
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129 {
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130 set_runTaskList();
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131 // TaskList 待ちの SPE に TaskList を送る
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132 sendTaskList();
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133 }
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134
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135 void
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136 CellTaskManagerImpl::run()
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137 {
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138 do {
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139 // PPE side
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140 ppeManager->poll();
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141 // SPE side
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142 do {
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143 poll();
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144 } while (ppeManager->activeTaskQueue->empty() && spe_running >0 );
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145 } while (!ppeManager->activeTaskQueue->empty() || spe_running >0);
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146 if (!waitTaskQueue->empty()) {
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147 get_scheduler()->printf("Dead lock detected\n");
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148 }
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149 }
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151 /**
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152 * SPE からのメールをチェックする
640
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parents: 638
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153 */
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154
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155 void
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156 CellTaskManagerImpl::mail_check(int id)
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157 {
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158 memaddr data;
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159
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160 // SPE Scheduler からの mail check
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161 while (speThreads->has_mail(id, 1, &data)) {
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162 if (data == (memaddr)MY_SPE_STATUS_READY) {
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163 // MY_SPE_STATUS_READY: SPE が持ってた Task 全て終了
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164 // freeAll する前に循環リストに戻す
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165 speTaskList[id]->getLast()->next = speTaskList[id];
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166 speTaskList[id]->freeAll();
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167 spe_running--;
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168 } else if (data == (memaddr)MY_SPE_COMMAND_MALLOC) {
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169 // MY_SPE_COMMAND_MALLOC SPE からのmain memory request
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170 send_alloc_reply(this, id, speThreads);
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171 } else if (data > (memaddr)MY_SPE_NOP) {
830
c7905ead974f return TaskList->self
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parents: 812
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172 #ifdef TASK_LIST_MAIL
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173 TaskListPtr list = (TaskListPtr)data;
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174 check_task_list_finish(schedTaskManager, list, waitTaskQueue);
830
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175 #else
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176 // 終了したタスク(PPEにあるのでアドレス)
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177 HTaskPtr task = (HTaskPtr)data;
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178 task->post_func(schedTaskManager, task->post_arg1, task->post_arg2);
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179 check_task_finish(task, waitTaskQueue);
830
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180 #endif
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181 }
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182 // MY_SPE_NOP: 特に意味のないコマンド
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183 }
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184 }
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185
832
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186 void
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187 CellTaskManagerImpl::polling()
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188 {
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189 // may call recursively check_task_list_finish()
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190 // we need fifo here
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191 for (int i = 0; i < machineNum; i++) {
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diff changeset
192 mail_check(i);
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193 }
832
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194 }
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195
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196 static void
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197 send_alloc_reply(CellTaskManagerImpl *tm, int id, SpeThreads *speThreads)
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198 {
273
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199
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200 /**
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201 * info[0] = alloc_id; (CellScheduler::mainMem_alloc 参照)
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202 * info[1] = alloc_addr;
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203 */
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204 memaddr alloc_info[2];
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diff changeset
205 long alloc_size;
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diff changeset
206 long command;
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207
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208 speThreads->get_mail(id, 2, alloc_info);
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parents: 718
diff changeset
209 command = (long)alloc_info[0];
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parents: 718
diff changeset
210 alloc_size = (long)alloc_info[1];
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211
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212
720
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parents: 719
diff changeset
213 alloc_info[1] = (memaddr)tm->allocate(alloc_size);
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214 //__debug_ppe("[PPE] MALLOCED 0x%lx from [SPE %d]\n", alloc_info[1],id);
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diff changeset
215 // 今のところ何もしてない。どうも、この allocate を free
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216 // するのは、SPE task が返した値を見て行うらしい。それは、
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diff changeset
217 // 忘れやすいのではないか?
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diff changeset
218 speThreads->add_output_tasklist(command, alloc_info[1], alloc_size);
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219
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220 speThreads->send_mail(id, 2, alloc_info);
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221 }
66
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222
109
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223 /**
321
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parents: 318
diff changeset
224 * 条件を満たしたら SPE に TaskList を送信する
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parents: 318
diff changeset
225 * 条件1. SPE が持ってた TaskList を終了して、次の TaskList を待ってる
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diff changeset
226 * 条件2. SPE に送る TaskList に Task がある
109
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227 *
808
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parents: 801
diff changeset
228 * SPE で実行終了した speTaskList と
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diff changeset
229 * これから実行する taskListInfo のバッファを入れ替える
109
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230 */
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231 void
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232 CellTaskManagerImpl::send_taskList(int id)
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233 {
808
8a6f1fa038de TaskListInfo version
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parents: 801
diff changeset
234 if (taskListInfo[id]->empty()) return;
853
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parents: 852
diff changeset
235 // speTaskList は走り終わった ppe の Task の List.
game@zeus.cr.ie.u-ryukyu.ac.jp
parents: 852
diff changeset
236 // taskListInfo はこれから走る Task の List.
game@zeus.cr.ie.u-ryukyu.ac.jp
parents: 852
diff changeset
237 // 交換して実行する
808
8a6f1fa038de TaskListInfo version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 801
diff changeset
238 TaskListInfoPtr tmp = taskListInfo[id];
8a6f1fa038de TaskListInfo version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 801
diff changeset
239 taskListInfo[id] = speTaskList[id];
8a6f1fa038de TaskListInfo version
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 801
diff changeset
240 speTaskList[id] = tmp;
109
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241
853
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parents: 852
diff changeset
242 // speTaskList は本来は循環リストなのだけど、実行中は線形リストである。
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parents: 852
diff changeset
243 // spe の Task が終了した時点でなおす。
809
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 808
diff changeset
244 tmp->getLast()->next = 0;
812
ff684304e1d3 fix Cell
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parents: 809
diff changeset
245 TaskListPtr p = tmp->getFirst();
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diff changeset
246 speThreads->send_mail(id, 1, (memaddr *)&p);
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247 }
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248
672
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diff changeset
249 void CellTaskManagerImpl::show_profile() {
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parents: 664
diff changeset
250 for (int id = 0; id < machineNum; id++) {
923
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 897
diff changeset
251 HTaskPtr t = schedTaskManager->create_task(ShowTime,0,0,0,0);
672
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diff changeset
252 t->set_cpu((CPU_TYPE)(id+2));
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diff changeset
253 t->spawn();
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254 }
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diff changeset
255 }
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diff changeset
256
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diff changeset
257 void CellTaskManagerImpl::start_profile() {
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parents: 664
diff changeset
258 for (int id = 0; id < machineNum; id++) {
923
e015a4e5e4b0 fix DMA/Mail wait profiler
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 897
diff changeset
259 HTaskPtr t = schedTaskManager->create_task(StartProfile,0,0,0,0);
672
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parents: 664
diff changeset
260 t->set_cpu((CPU_TYPE)(id+2));
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diff changeset
261 t->spawn();
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diff changeset
262 }
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parents: 664
diff changeset
263 }
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parents: 664
diff changeset
264
380
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parents: 356
diff changeset
265
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266 #ifdef __CERIUM_CELL__
57
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267 TaskManagerImpl*
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268 create_impl(int num)
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269 {
835
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diff changeset
270 return new CellTaskManagerImpl(num);
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271 }
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272 #endif // __CERIUM_CELL