Mercurial > hg > Game > Cerium
annotate example/fft/main.cc @ 1646:ab6b11476e02 draft
fix fft
| author | Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 Jun 2013 19:45:45 +0900 |
| parents | 6c0b6947c231 |
| children | 05adaf6f7afb |
| rev | line source |
|---|---|
| 1551 | 1 #include <stdio.h> |
| 2 #include <stdlib.h> | |
| 3 #include <math.h> | |
| 4 #include <sys/stat.h> | |
| 5 #include <fcntl.h> | |
| 6 #include <sys/time.h> | |
| 7 #include "TaskManager.h" | |
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8 #include "GpuScheduler.h" |
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9 #include "SchedTask.h" |
| 1551 | 10 #include "Func.h" |
| 11 #ifdef __APPLE__ | |
| 12 #include <OpenCL/opencl.h> | |
| 13 #else | |
| 14 #include <CL/cl.h> | |
| 15 #endif | |
| 16 #include "pgm.h" | |
| 17 extern void task_init(); | |
| 18 | |
| 19 #define PI 3.14159265358979 | |
| 20 | |
| 21 #define MAX_SOURCE_SIZE (0x100000) | |
| 22 | |
| 23 #define AMP(a, b) (sqrt((a)*(a)+(b)*(b))) | |
| 24 | |
| 25 static double st_time; | |
| 26 static double ed_time; | |
| 27 void TMend(TaskManager *); | |
| 28 cl_device_id device_id = NULL; | |
| 29 cl_context context = NULL; | |
| 30 cl_command_queue queue = NULL; | |
| 31 cl_program program = NULL; | |
| 32 CPU_TYPE spe_cpu = SPE_ANY; | |
| 33 | |
| 1646 | 34 cl_float2* xm; |
| 35 cl_float2* rm; | |
| 36 cl_float2* wm; | |
| 37 pgm_t ipgm; | |
| 38 | |
| 1551 | 39 enum Mode { |
| 40 forward = 0, | |
| 41 inverse = 1 | |
| 42 }; | |
| 43 | |
| 44 static double | |
| 45 getTime() | |
| 46 { | |
| 47 struct timeval tv; | |
| 48 gettimeofday(&tv, NULL); | |
| 49 return tv.tv_sec + (double)tv.tv_usec*1e-6; | |
| 50 } | |
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51 |
| 1646 | 52 void |
| 53 output() | |
| 54 { | |
| 55 int n = ipgm.width; | |
| 56 float* ampd; | |
| 57 ampd = (float*)malloc(n*n*sizeof(float)); | |
| 58 for (int i=0; i < n; i++) { | |
| 59 for (int j=0; j < n; j++) { | |
| 60 ampd[n*((i))+((j))] = (AMP(((float*)xm)[(2*n*i)+2*j], ((float*)xm)[(2*n*i)+2*j+1])); | |
| 61 } | |
| 62 } | |
| 63 pgm_t opgm; | |
| 64 opgm.width = n; | |
| 65 opgm.height = n; | |
| 66 normalizeF2PGM(&opgm, ampd); | |
| 67 free(ampd); | |
| 68 | |
| 69 // Write out image | |
| 70 writePGM(&opgm, "output.pgm"); | |
| 71 | |
| 72 // Finalizations | |
| 73 destroyPGM(&ipgm); | |
| 74 destroyPGM(&opgm); | |
| 75 | |
| 76 free(wm); | |
| 77 free(rm); | |
| 78 free(xm); | |
| 79 } | |
| 80 | |
| 1551 | 81 const char *usr_help_str = "Usage: ./fft [option]\n \ |
| 82 options\n\ | |
| 83 -cpu Number of SPE used (default 1)\n\ | |
| 84 -l, --length Sorted number of data (default 1200)\n\ | |
| 85 -h, --help Print this message"; | |
| 86 | |
| 87 int setWorkSize(size_t* gws, size_t* lws, cl_int x, cl_int y) | |
| 88 { | |
| 89 switch(y) { | |
| 90 case 1: | |
| 91 gws[0] = x; | |
| 92 gws[1] = 1; | |
| 93 lws[0] = 1; | |
| 94 lws[1] = 1; | |
| 95 break; | |
| 96 default: | |
| 97 gws[0] = x; | |
| 98 gws[1] = y; | |
| 99 lws[0] = 1; | |
| 100 lws[1] = 1; | |
| 101 break; | |
| 102 } | |
| 103 | |
| 104 return 0; | |
| 105 } | |
| 106 | |
| 1646 | 107 HTask* |
| 108 fftCore(TaskManager *manager,cl_float2 *dst, cl_float2 *src, cl_float2 *spin, int m, enum Mode direction,HTask* waitTask) | |
| 1551 | 109 { |
| 1643 | 110 unsigned int direction_flag; |
| 1551 | 111 switch (direction) { |
| 1643 | 112 case forward:direction_flag = 0x00000000; break; |
| 113 case inverse:direction_flag = 0x80000000; break; | |
| 1551 | 114 } |
| 1643 | 115 int n = 1<<m; |
| 1551 | 116 size_t gws[2],lws[2]; |
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117 int length_dst = n*n; |
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118 int length_src = n*n; |
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119 |
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parents:
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120 HTask* brev = manager->create_task(BIT_REVERSE); |
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121 setWorkSize(gws,lws,n,n); |
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122 brev->set_inData(0, src, length_src*sizeof(cl_float2)); |
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parents:
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diff
changeset
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123 brev->set_outData(0, dst, length_dst*sizeof(cl_float2)); |
| 1643 | 124 brev->set_param(3,m); |
| 125 brev->set_param(4,n); | |
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parents:
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126 brev->set_cpu(spe_cpu); |
| 1646 | 127 brev->wait_for(waitTask); |
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128 brev->iterate(gws[0],gws[1]); |
| 1551 | 129 |
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parents:
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130 HTask* bfly = manager->create_task(BUTTERFLY); |
| 1643 | 131 setWorkSize(gws,lws,n/2,n); |
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Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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132 bfly->set_inData(0, dst, length_dst*sizeof(cl_float2)); |
| 1643 | 133 bfly->set_inData(1, spin, sizeof(cl_float2)*(n/2)); |
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fix fft , used iterate
Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
parents:
1581
diff
changeset
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134 bfly->set_outData(0,dst,length_dst*sizeof(cl_float2)); |
| 1643 | 135 bfly->set_param(3,n); |
| 136 bfly->set_param(4,direction_flag); | |
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fix fft , used iterate
Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
parents:
1581
diff
changeset
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137 bfly->set_cpu(spe_cpu); |
|
6ff0c34c8a3c
fix fft , used iterate
Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
parents:
1581
diff
changeset
|
138 bfly->wait_for(brev); |
| 1643 | 139 bfly->iterate(gws[0],gws[1],m); |
| 1646 | 140 |
| 141 waitTask = bfly; | |
| 1551 | 142 |
| 143 if (direction == inverse) { | |
| 144 HTask *norm = manager->create_task(NORMALIZATION); | |
| 1643 | 145 setWorkSize(gws,lws,n,n); |
| 1571 | 146 norm->set_outData(0, dst, length_dst*sizeof(cl_float2)); |
| 1643 | 147 norm->set_param(3,n); |
| 1551 | 148 norm->set_cpu(spe_cpu); |
| 149 norm->flip(); | |
| 1579 | 150 norm->wait_for(bfly); |
| 1643 | 151 norm->iterate(gws[0],gws[0]); |
| 1646 | 152 |
| 153 waitTask = norm; | |
| 1551 | 154 } |
| 1646 | 155 return waitTask; |
| 1551 | 156 } |
| 157 | |
| 158 char * | |
| 159 init(int argc, char**argv){ | |
| 160 | |
| 161 char *filename = 0; | |
| 162 | |
| 163 for (int i = 1; argv[i]; ++i) { | |
| 164 if (strcmp(argv[i], "-file") == 0) { | |
| 165 filename = argv[i+1]; | |
| 166 } else if (strcmp(argv[i], "-g") == 0) { | |
| 167 spe_cpu = GPU_0; | |
| 168 } | |
| 169 } | |
| 170 if ( (argc == 1)||(filename==0)) { | |
| 1643 | 171 printf("Usage: ./fft -file [image filename] -cpu or -gpu\n"); |
| 1551 | 172 exit(-1); |
| 173 } | |
| 174 | |
| 175 return filename; | |
| 176 } | |
| 177 | |
| 178 void | |
| 179 run_start(TaskManager *manager,pgm_t ipgm) | |
| 180 { | |
| 1643 | 181 int n = ipgm.width; |
| 182 int m = (cl_int)(log((double)n)/log(2.0)); | |
| 183 size_t *gws = new size_t[2]; | |
| 184 size_t *lws = new size_t[2]; | |
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parents:
1551
diff
changeset
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185 |
| 1646 | 186 xm = (cl_float2 *)malloc(n * n * sizeof(cl_float2)); |
| 187 rm = (cl_float2 *)malloc(n * n * sizeof(cl_float2)); | |
| 188 wm = (cl_float2 *)malloc(n / 2 * sizeof(cl_float2)); | |
| 189 | |
| 190 HTask* waitTask; | |
| 1551 | 191 /* |
| 192 * [cl_float2] | |
| 193 * typedef union | |
| 194 * { | |
| 195 * cl_float CL_ALIGNED(8) s[2]; | |
| 196 * #if defined( __GNUC__) && ! defined( __STRICT_ANSI__ ) | |
| 197 * __extension__ struct{ cl_float x, y; }; | |
| 198 * __extension__ struct{ cl_float s0, s1; }; | |
| 199 * __extension__ struct{ cl_float lo, hi; }; | |
| 200 * #endif | |
| 201 * #if defined( __CL_FLOAT2__) | |
| 202 * __cl_float2 v2; | |
| 203 * #endif | |
| 204 * } cl_float2; | |
| 205 */ | |
| 1643 | 206 for (int i=0; i<n; i++) { |
| 207 for (int j=0; j < n; j++) { | |
| 208 ((float*)xm)[(2*n*j)+2*i+0] = (float)ipgm.buf[n*j+i]; | |
| 209 ((float*)xm)[(2*n*j)+2*i+1] = (float)0; | |
| 1551 | 210 } |
| 211 } | |
| 1579 | 212 |
| 213 // Create spin factor | |
| 1643 | 214 int length_w = n / 2; |
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6ff0c34c8a3c
fix fft , used iterate
Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
parents:
1581
diff
changeset
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215 HTask* sfac = manager->create_task(SPIN_FACT); |
| 1643 | 216 setWorkSize(gws,lws,n/2,1); |
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fix fft , used iterate
Shohei KOKUBO <e105744@ie.u-ryukyu.ac.jp>
parents:
1581
diff
changeset
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217 sfac->set_outData(0, wm, length_w*sizeof(cl_float2)); |
| 1643 | 218 sfac->set_param(3,n); |
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parents:
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diff
changeset
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219 sfac->set_cpu(spe_cpu); |
| 1643 | 220 sfac->iterate(gws[0],gws[1]); |
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parents:
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221 |
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222 // Butterfly Operation |
| 1646 | 223 waitTask = fftCore(manager, rm, xm, wm, m, forward,sfac); |
| 1551 | 224 |
| 225 HTaskPtr *trns = (HTask**)manager->allocate(sizeof(HTask*)*2); | |
| 226 | |
| 227 // Transpose matrix | |
| 1643 | 228 int length_r =n*n; |
| 229 setWorkSize(gws,lws,n/2,1); | |
| 1551 | 230 for (int i=0;i<2;i++) { |
| 231 trns[i]= manager->create_task(TRANSEPOSE); | |
| 232 trns[i]->set_inData(0, rm, length_r*sizeof(cl_float2)); | |
| 233 trns[i]->set_outData(0, xm, length_r*sizeof(cl_float2)); | |
| 1643 | 234 trns[i]->set_param(3,n); |
| 1551 | 235 trns[i]->set_cpu(spe_cpu); |
| 236 } | |
| 1646 | 237 // trns[0]->wait_for(sfac); |
| 238 trns[0]->wait_for(waitTask); | |
| 1643 | 239 trns[0]->iterate(gws[0],gws[1]); |
| 1551 | 240 // Butterfly Operation |
| 1646 | 241 // fftCore(manager, rm, xm, wm, m, forward); |
| 1551 | 242 |
| 243 // Apply high-pass filter | |
| 244 HTask *hpfl = manager->create_task(HIGH_PASS_FILTER); | |
| 1643 | 245 cl_int radius = n/8; |
| 246 setWorkSize(gws,lws,n/2,1); | |
| 1551 | 247 hpfl->set_outData(0, rm, length_r*sizeof(cl_float2)); |
| 1643 | 248 hpfl->set_param(3,n); |
| 249 hpfl->set_param(4,radius); | |
| 1551 | 250 hpfl->set_cpu(spe_cpu); |
| 251 hpfl->wait_for(trns[0]); | |
| 1643 | 252 hpfl->iterate(gws[0],gws[1]); |
| 1551 | 253 // Inverse FFT |
| 254 | |
| 255 // Butterfly Operation | |
| 1646 | 256 waitTask = fftCore(manager,xm, rm, wm, m, inverse,hpfl); |
| 1551 | 257 |
| 258 // Transpose matrix | |
| 1643 | 259 setWorkSize(gws,lws,n,n); |
| 1646 | 260 trns[1]->wait_for(waitTask); |
| 1643 | 261 trns[1]->iterate(gws[0],gws[1]); |
| 1551 | 262 |
| 263 // Butterfly Operation | |
| 264 | |
| 1646 | 265 waitTask = fftCore(manager,xm, rm, wm, m, inverse,trns[1]); |
| 1551 | 266 } |
| 267 | |
| 268 int TMmain(TaskManager *manager, int argc, char** argv) { | |
| 269 task_init(); | |
| 270 char * pgm_file = init(argc,argv); | |
| 271 /* Read image */ | |
| 272 int err = readPGM(&ipgm, pgm_file); | |
| 273 if (err<0) { | |
| 274 fprintf(stderr, "Failed to read image file.\n"); | |
| 275 exit(1); | |
| 1566 | 276 } |
| 1551 | 277 st_time = getTime(); |
| 278 run_start(manager, ipgm); | |
| 279 manager->set_TMend(TMend); | |
| 280 return 0; | |
| 281 } | |
| 282 | |
| 283 void | |
| 284 TMend(TaskManager *manager) | |
| 285 { | |
| 1646 | 286 output(); |
| 1551 | 287 ed_time = getTime(); |
| 288 fprintf(stdout, "image out put succeeded.\n"); | |
| 289 printf("Time: %0.6f\n",ed_time-st_time); | |
| 290 } |