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Opencl code may start executing before the clfinish order is given to it so get the start timing used for dynamic intensity from before the kernel is queued.

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This commit is contained in:
ckolivas 2012-06-26 11:12:13 +10:00
parent b2cef11480
commit 79a4e25742
1 changed files with 3 additions and 2 deletions
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5
driver-opencl.c
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@ -1353,7 +1353,6 @@ static uint64_t opencl_scanhash(struct thr_info *thr, struct work *work,
unsigned int threads;
unsigned int hashes;
gettimeofday(&gpu->tv_gpustart, NULL);
/* This finish flushes the readbuffer set with CL_FALSE later */
clFinish(clState->commandQueue);
gettimeofday(&gpu->tv_gpuend, NULL);
@ -1372,7 +1371,7 @@ static uint64_t opencl_scanhash(struct thr_info *thr, struct work *work,
if (gpu->gpu_ms_average > opt_dynamic_interval) {
if (gpu->intensity > MIN_INTENSITY)
--gpu->intensity;
} else if (gpu->gpu_ms_average < ((opt_dynamic_interval / 2) ? : 1)) {
} else if (gpu->gpu_ms_average < (float)opt_dynamic_interval / 2) {
if (gpu->intensity < MAX_INTENSITY)
++gpu->intensity;
}
@ -1408,6 +1407,8 @@ static uint64_t opencl_scanhash(struct thr_info *thr, struct work *work,
clFinish(clState->commandQueue);
}
gettimeofday(&gpu->tv_gpustart, NULL);
if (clState->goffset) {
size_t global_work_offset[1];