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Always create the largest possible padbuffer for scrypt kernels even if not needed for thread_concurrency, giving us some headroom for intensity levels.

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This commit is contained in:
Con Kolivas 2012-07-23 21:30:30 +10:00
parent d8f81c18ee
commit 3a0d60cfe1
1 changed files with 5 additions and 2 deletions
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7
ocl.c
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@ -773,11 +773,14 @@ built:
size_t ipt = (1024 / gpus[gpu].lookup_gap + (1024 % gpus[gpu].lookup_gap > 0));
size_t bufsize = 128 * ipt * gpus[gpu].thread_concurrency;
applog(LOG_DEBUG, "Creating scrypt buffer sized %d", bufsize);
/* Always allocate the largest possible buffer allowed, even if we're not initially requiring it
* based on thread_concurrency, giving us some headroom for intensity levels. */
if (bufsize > gpus[gpu].max_alloc) {
applog(LOG_WARNING, "Maximum buffer memory device %d supports says %u, your scrypt settings come to %u",
gpu, gpus[gpu].max_alloc, bufsize);
}
} else
bufsize = gpus[gpu].max_alloc;
applog(LOG_DEBUG, "Creating scrypt buffer sized %d", bufsize);
clState->padbufsize = bufsize;
clState->padbuffer8 = clCreateBuffer(clState->context, CL_MEM_READ_WRITE, bufsize, NULL, &status);
if (status != CL_SUCCESS) {