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[RX] NVIDIA: fix auto adjustment #2567

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Nov 25, 2019
Merged

[RX] NVIDIA: fix auto adjustment #2567

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7 changes: 6 additions & 1 deletion xmrstak/backend/nvidia/nvcc_code/cuda_extra.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -322,6 +322,12 @@ extern "C" int cuda_get_deviceinfo(nvid_ctx* ctx)
hashMemSize = std::max(hashMemSize, algo.Mem());
}

const size_t dataset_size = getRandomXDatasetSize();
/* increase maxMemUsage by the dataset because the upper limits are
* only for the scratchpad and does not take the randomX dataset into account.
*/
maxMemUsage += dataset_size;

#ifdef WIN32
/* We use in windows bfactor (split slow kernel into smaller parts) to avoid
* that windows is killing long running kernel.
Expand All @@ -346,7 +352,6 @@ extern "C" int cuda_get_deviceinfo(nvid_ctx* ctx)
size_t availableMem = freeMemory - (128u * byteToMiB) - 200u;
size_t limitedMemory = std::min(availableMem, maxMemUsage);

const size_t dataset_size = getRandomXDatasetSize();
if(limitedMemory <= dataset_size)
limitedMemory = 0;
else
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