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annotate example/many_task/sort.cc @ 1519:9a5f87f4b60f draft

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add spe_cpu for gpu
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sat, 10 Nov 2012 18:21:16 +0900
parents e544f9747169
children 027d99ecb50e
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1 #include "TaskManager.h"
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2 #include "SchedTask.h"
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3 #include "sort.h"
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4 #include "Func.h"
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5 #include <string.h>
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6
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7 extern int get_split_num(int len, int num);
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8 extern int all; // allocate task at once
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9 extern CPU_TYPE spe_cpu ;
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10
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11 /**
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12 * 一つの block にある data の数が MAX_BLOCK_SIZE 超えないような
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13 * len の分割数を返す
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14 *
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15 * @param len sort する data の総数
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16 * @param num 使用する SPE の数
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17 *
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18 * @return data の分割数
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19 *
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20 * TODO:
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21 * len が num 以下とか考えてません
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22 */
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23 int
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24 get_split_num(int len, int num)
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25 {
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26 if (len / num < MAX_BLOCK_SIZE) {
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27 return num;
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28 } else {
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29 // 切り上げ
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30 return (len + MAX_BLOCK_SIZE - 1) / MAX_BLOCK_SIZE;
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31 }
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32 }
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33
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34
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35 /**
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36 * btask が全て終了したら、再び sort_start を実行する
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37 * @param d 生成された btask の数
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38 */
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39
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40 SchedDefineTask1(SortSimple, sort_start );
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41
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42 static int
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43 sort_start(SchedTask *manager, void *d, void *e)
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44 {
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45 Sort *s = (Sort*)manager->get_param(0);
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46 int half_num = s->split_num-1;
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47 static int sort_count = s->split_num; // sort 完了に必要な回数
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48
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49 // 一つのタスクで sort する data 数
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50 int block_num = (s->data_length + s->split_num -1)/s->split_num;
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51 int half_block_num = block_num/2;
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52
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53 int last_block_num = s->data_length - (s->split_num-1)*block_num;
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54 int last_half_block_num = half_block_num+(last_block_num/2);
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55
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56 if (--sort_count < 0) {
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57 return 0;
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58 }
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59
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60
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61
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62 for (int i = 0; i < s->split_num-1; i++) {
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63 s->fsort[i] = manager->create_task(QUICK_SORT,
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64 (memaddr)&s->data[i*block_num], sizeof(Data)*block_num,
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65 (memaddr)&s->data[i*block_num], sizeof(Data)*block_num);
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66
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67 s->fsort[i]->flip();
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68
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69 if (i>0 && s->bsort[i-1]) {
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70 s->fsort[i]->wait_for(s->bsort[i-1]);
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71 }
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72 if (i<s->split_num-2 && s->bsort[i]) {
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73 s->fsort[i]->wait_for(s->bsort[i]);
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74 }
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75 s->fsort[i]->set_cpu(spe_cpu);
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76 s->fsort[i]->set_param(0,(memaddr)block_num);
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77 }
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78
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79 // 最後の block は端数なので last_block_num を使う
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80 {
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81 int i = s->split_num-1;
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82
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83 s->fsort[i] = manager->create_task(QUICK_SORT,
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84 (memaddr)&s->data[i*block_num], sizeof(Data)*last_block_num,
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85 (memaddr)&s->data[i*block_num], sizeof(Data)*last_block_num);
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86 s->fsort[i]->flip();
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87 if (i>0 && s->bsort[i-1]) {
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88 s->fsort[i]->wait_for(s->bsort[i-1]);
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89 }
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90 s->fsort[i]->set_cpu(spe_cpu);
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91 s->fsort[i]->set_param(0,(memaddr)last_block_num);
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92 }
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93
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94 if (s->split_num > 1) {
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95
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96 for (int i = 0; i < half_num-1; i++) {
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97 if (s->bsort[i]) manager->free_htask(s->bsort[i]);
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98 s->bsort[i] = manager->create_task(QUICK_SORT,
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99 (memaddr)&s->data[i*block_num+half_block_num], sizeof(Data)*block_num,
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100 (memaddr)&s->data[i*block_num+half_block_num], sizeof(Data)*block_num);
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101 s->bsort[i]->flip();
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102 s->bsort[i]->set_cpu(spe_cpu);
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103 s->bsort[i]->set_param(0,(memaddr)block_num);
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104 }
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105
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106 {
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107 int i = half_num-1;
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108
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109 if (s->bsort[i]) manager->free_htask(s->bsort[i]);
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110 s->bsort[i] = manager->create_task(QUICK_SORT,
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111 (memaddr)&s->data[i*block_num+half_block_num], sizeof(Data)*last_half_block_num,
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112 (memaddr)&s->data[i*block_num+half_block_num], sizeof(Data)*last_half_block_num);
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113 s->bsort[i]->flip();
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114 s->bsort[i]->set_cpu(spe_cpu);
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115 s->bsort[i]->set_param(0,(memaddr)last_half_block_num);
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116 }
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117
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118 for (int i = 0; i < half_num; i++) {
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119 s->bsort[i]->wait_for(s->fsort[i]);
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120 s->bsort[i]->wait_for(s->fsort[i+1]);
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121 s->bsort[i]->no_auto_free();
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122 s->bsort[i]->spawn();
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123 }
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124 }
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125
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126 HTaskPtr restart = manager->create_task(SortSimple,0,0,0,0);
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127 restart->set_param(0,(memaddr)s);
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128 if (!all) restart->wait_for(s->fsort[0]);
9ed1c4a877ca sort example fix ( simple task accepts one param and more compatible with old task)
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 941
diff changeset
129 for (int i = 0; i < s->split_num; i++) {
1515
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
130 s->fsort[i]->spawn();
932
53ad3a61b40b sort test (add swap())
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 674
diff changeset
131 }
954
774eba654643 auto_free
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 945
diff changeset
132 if (sort_count == 1) {
1515
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
133 // last loop wait for all task
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
134 // we should not need this?
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
135 for (int i = 0; i < half_num; i++) {
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
136 restart->wait_for(s->bsort[i]);
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
137 s->bsort[i]->auto_free();
b3644b73d2cf add flip flag test
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 954
diff changeset
138 }
954
774eba654643 auto_free
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 945
diff changeset
139 }
935
11b19708e613 -a option for sort
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 934
diff changeset
140 restart->spawn();
1516
e544f9747169 fix gpu kernel source
Yuhi TOMARI <yuhi@cr.ie.u-ryukyu.ac.jp>
parents: 1515
diff changeset
141
945
9ed1c4a877ca sort example fix ( simple task accepts one param and more compatible with old task)
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 941
diff changeset
142 return 0;
934
83b64b7a51bd sort fix ( not working now )
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 932
diff changeset
143 }
227
e7faaf516be1 add sort
gongo@localhost.localdomain
parents:
diff changeset
144
935
11b19708e613 -a option for sort
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 934
diff changeset
145
651
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 625
diff changeset
146 /* end */