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Add task-parallel version of aobench

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This commit is contained in:
Matt Pharr
2011-09-07 05:43:21 -07:00
parent 4f451bd041
commit effe901890
4 changed files with 64 additions and 11 deletions
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27
examples/aobench/ao.cpp
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@@ -173,10 +173,30 @@ int main(int argc, char **argv)
}
// Report results and save image
printf("[aobench ispc]:\t\t\t[%.3f] M cycles (%d x %d image)\n", minTimeISPC,
width, height);
printf("[aobench ispc]:\t\t\t[%.3f] M cycles (%d x %d image)\n",
minTimeISPC, width, height);
savePPM("ao-ispc.ppm", width, height);
//
// Run the ispc + tasks path, test_iterations times, and report the
// minimum time for any of them.
//
double minTimeISPCTasks = 1e30;
for (unsigned int i = 0; i < test_iterations; i++) {
memset((void *)fimg, 0, sizeof(float) * width * height * 3);
assert(NSUBSAMPLES == 2);
reset_and_start_timer();
ao_ispc_tasks(width, height, NSUBSAMPLES, fimg);
double t = get_elapsed_mcycles();
minTimeISPCTasks = std::min(minTimeISPCTasks, t);
}
// Report results and save image
printf("[aobench ispc + tasks]:\t\t[%.3f] M cycles (%d x %d image)\n",
minTimeISPCTasks, width, height);
savePPM("ao-ispc-tasks.ppm", width, height);
//
// Run the serial path, again test_iteration times, and report the
// minimum time.
@@ -193,7 +213,8 @@ int main(int argc, char **argv)
// Report more results, save another image...
printf("[aobench serial]:\t\t[%.3f] M cycles (%d x %d image)\n", minTimeSerial,
width, height);
printf("\t\t\t\t(%.2fx speedup from ISPC)\n", minTimeSerial / minTimeISPC);
printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n",
minTimeSerial / minTimeISPC, minTimeSerial / minTimeISPCTasks);
savePPM("ao-serial.ppm", width, height);
return 0;