annotate example/word_count/main.cc @ 946:a8b6ee80c108

unify word count examples....
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 01 Aug 2010 21:05:35 +0900
parents 45c141669de7
children 6a8941ee8294
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <sys/mman.h>
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5 #include <sys/types.h>
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6 #include <sys/stat.h>
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7 #include <fcntl.h>
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8 #include <unistd.h>
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9 #include "TaskManager.h"
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10 #include "SchedTask.h"
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11 #include "Func.h"
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12 #include "WordCount.h"
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13
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14 extern void task_init();
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15
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16 int all = 0;
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17 int use_task_array = 1;
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18 int use_compat = 0;
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19
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20 const char *usr_help_str = "Usage: ./word_count [-a -c -s] [-cpu spe_num] [-file filename]\n";
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21
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22 typedef struct {
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23 caddr_t file_mmap;
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24 off_t size;
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25 } st_mmap_t;
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26
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27
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28
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29 /*与えられたsizeをfix_byte_sizeの倍数にする(丸め込むっていうのかな?)*/
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30 static int
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31 fix_byte(int size,int fix_byte_size)
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32 {
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33 size = (size/fix_byte_size)*fix_byte_size + ((size%fix_byte_size)!= 0)*fix_byte_size;
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34
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35 return size;
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36 }
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37
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38
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39 static st_mmap_t
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40 my_mmap(char *filename)
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41 {
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42
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43 /*マッピングだよ!*/
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44 int fd = -1;
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45 int map = MAP_PRIVATE;
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46 st_mmap_t st_mmap;
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47 struct stat sb;
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48
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49 if ((fd=open(filename,O_RDONLY,0666))==0) {
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50 fprintf(stderr,"can't open %s\n",filename);
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51 }
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52
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53 if (fstat(fd,&sb)) {
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54 fprintf(stderr,"can't fstat %s\n",filename);
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55 }
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56
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57 printf("file size %d\n",(int)sb.st_size);
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58
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59 /*sizeをページングサイズの倍数にあわせる*/
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60 st_mmap.size = fix_byte(sb.st_size,4096);
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61
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62 printf("fix 4096byte file size %d\n",(int)st_mmap.size);
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63
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64 st_mmap.file_mmap = (char*)mmap(NULL,st_mmap.size,PROT_READ,map,fd,(off_t)0);
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65 if (st_mmap.file_mmap == (caddr_t)-1) {
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66 fprintf(stderr,"Can't mmap file\n");
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67 perror(NULL);
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68 exit(0);
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69 }
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70
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71 return st_mmap;
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72
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73 }
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74
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75 static void
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76 run_tasks(SchedTask *manager, WordCount *w, int task_count, HTaskPtr t_next, int size)
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77 {
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78
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79 int array_task_num = 8;
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80 if (task_count < array_task_num) {
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81 array_task_num = task_count;
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82 }
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83
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84 for (int i = 0; i < task_count; i += array_task_num) {
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85
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86 HTask *task_array;
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87 if (use_task_array) {
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88 task_array = manager->create_task_array(TASK_EXEC,array_task_num,0,1,1);
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89 if (!all) t_next->wait_for(task_array);
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90 }
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91
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92 Task *t_exec = 0;
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93 HTask *h_exec;
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94 for (int j = 0; j < array_task_num; j++) {
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95 int i = w->task_spwaned++;
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96 if (use_task_array) {
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97 t_exec = task_array->next_task_array(TASK_EXEC,t_exec);
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98 t_exec->set_inData(0,w->file_mmap + i*w->division_size, size);
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99 t_exec->set_outData(0,w->o_data + i*w->out_size, w->division_out_size);
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100 } else if (use_compat) {
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101 h_exec = manager->create_task(TASK_EXEC);
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102 h_exec->set_inData(0,w->file_mmap + i*w->division_size, size);
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103 h_exec->set_outData(0,w->o_data + i*w->out_size, w->division_out_size);
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104 h_exec->set_cpu(SPE_ANY);
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105 h_exec->spawn();
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106 } else {
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107 h_exec = manager->create_task(TASK_EXEC,
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108 (memaddr)(w->file_mmap + i*w->division_size), size,
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109 (memaddr)(w->o_data + i*w->out_size), w->division_out_size);
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110 h_exec->set_cpu(SPE_ANY);
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111 h_exec->spawn();
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112 }
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113 w->size -= size;
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114 w->task_num--;
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115 }
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116 if (!use_task_array) {
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117 task_array->spawn_task_array(t_exec->next());
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118 task_array->set_cpu(SPE_ANY);
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119 task_array->spawn();
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120 } else {
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121 if (!all) t_next->wait_for(h_exec);
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122 }
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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 * このTaskは、PPE上で実行されるので、並列に実行されることはない
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128 * 二つ実行されていて、Task が足りなくなることがないようにしている。
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129 */
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130
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131 SchedDefineTask1(RUN_TASK_BLOCKS,run16);
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132
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133 static int
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134 run16(SchedTask *manager, void *in, void *out)
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135 {
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136 WordCount *w = *(WordCount **)in;
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137
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138 if (w->task_num < w->task_blocks) {
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139 if (w->size >= w->division_size)
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140 run_tasks(manager,w,w->task_num, w->t_print, w->division_size);
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141 while (w->size>0)
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142 run_tasks(manager,w,1, w->t_print, w->size);
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143 // printf("run16 last %d\n",w->task_num);
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144 } else {
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145 HTaskPtr t_next = manager->create_task(RUN_TASK_BLOCKS,
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146 (memaddr)&w->self,sizeof(memaddr),0,0);
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147 w->t_print->wait_for(t_next);
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148
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149 run_tasks(manager,w, w->task_blocks, t_next, w->division_size);
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150
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151 t_next->spawn();
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152 // printf("run16 next %d\n",w->task_num);
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153 }
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154 return 0;
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155 }
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156
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157
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158 static int blocks = 48;
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159 static int division = 16; // in Kbyte
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160
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161 static void
400
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162 run_start(TaskManager *manager, char *filename)
393
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163 {
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164 HTaskPtr t_print;
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165
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166 st_mmap_t st_mmap;
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167 st_mmap = my_mmap(filename);
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168 WordCount *w = (WordCount*)manager->allocate(sizeof(WordCount));
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169 // bzero(w,sizeof(WordCount));
393
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170
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171 w->self = w;
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172 w->task_blocks = blocks;
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173 w->task_spwaned = 0;
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174
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175 /*sizeはdivision_sizeの倍数にしている。*/
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176 w->size = st_mmap.size;
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177 w->file_mmap = st_mmap.file_mmap;
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178
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179 /* 1task分のデータサイズ(byte) */
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180 if (w->size >= 1024*division) {
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181 w->division_size = 1024 * division;/*16kbyte*/
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182 } else {
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183 w->division_size = w->size;
393
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184 }
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185
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186 printf("dvision_size %d\n",w->division_size);
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187
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188 /* "word num" and "line num" */
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189 w->status_num = 2;
393
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190 /* taskの数 */
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191 w->task_num = w->size / w->division_size;
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192 w->task_num = w->task_num + (w->division_size*w->task_num < w->size);
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193 int out_task_num = w->task_num;
394
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194
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195 w->out_task_num = out_task_num;
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196 printf("task_num %d\n",w->task_num);
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197 printf("out_task_num %d\n",w->out_task_num);
394
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198
393
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199 /* out用のdivision_size. statusが2つなので、あわせて16byteになるように、long long(8byte)を使用 */
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200
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201 w->division_out_size = sizeof(unsigned long long)*4;
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202 int out_size = w->division_out_size*out_task_num;
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203 w->o_data = (unsigned long long *)manager->allocate(out_size);
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204 w->out_size = 4;
393
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205 printf("out size %d\n",out_size);
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206
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207 /*各SPEの結果を合計して出力するタスク*/
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208
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209 t_print = manager->create_task(TASK_PRINT,
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210 (memaddr)&w->self,sizeof(memaddr),0,0);
393
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211
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212 w->t_print = t_print;
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213
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214 for(int i = 0;i<2;i++) {
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215 /* Task を task_blocks ずつ起動する Task */
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216 /* serialize されていると仮定する... */
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217 HTaskPtr t_exec = manager->create_task(RUN_TASK_BLOCKS,
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218 (memaddr)&w->self,sizeof(memaddr),0,0);
393
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219 t_print->wait_for(t_exec);
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220 t_exec->spawn();
394
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221 }
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222
393
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223 t_print->spawn();
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224 }
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225
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226 static char*
393
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227 init(int argc, char **argv)
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228 {
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229
394
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230 char *filename = 0;
393
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231
394
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232 for (int i = 1; argv[i]; ++i) {
393
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233 if (strcmp(argv[i], "-file") == 0) {
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234 filename = argv[i+1];
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235 } else if (strcmp(argv[i], "-division") == 0) {
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236 division = atoi(argv[i+1]);
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237 } else if (strcmp(argv[i], "-block") == 0) {
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238 blocks = atoi(argv[i+1]);
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239 } else if (strcmp(argv[i], "-a") == 0) {
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240 // create task all at once
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241 all = 1;
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242 } else if (strcmp(argv[i], "-c") == 0) {
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243 use_task_array = 0;
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244 use_compat = 1;
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245 } else if (strcmp(argv[i], "-s") == 0) {
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246 use_task_array = 0;
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247 use_compat = 0;
393
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248 }
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249 }
400
00fe05184a02 Fix examples.
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parents: 394
diff changeset
250 if (filename==0) {
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251 puts(usr_help_str);
400
00fe05184a02 Fix examples.
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parents: 394
diff changeset
252 exit(1);
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parents: 394
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253 }
393
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254
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255 return filename;
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256 }
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257
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258
393
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259 int
400
00fe05184a02 Fix examples.
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parents: 394
diff changeset
260 TMmain(TaskManager *manager, int argc, char *argv[])
393
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261 {
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262
394
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263 char *filename = 0;
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264 filename = init(argc, argv);
393
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265
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266 if (filename < 0) {
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267 return -1;
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268 }
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269
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270 task_init();
400
00fe05184a02 Fix examples.
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parents: 394
diff changeset
271 run_start(manager, filename);
393
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272
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273 return 0;
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274 }
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275
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276 /* end */