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conservative NVIDIA auto suggestion

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Be more conservative with the auto suggestion.

- increase bfactor if `smx <= 6`
- limit memory for pascal < GTX1070 to 2GiB
- limt memory for pascal <= GTX1080 to 4GiB
This commit is contained in:
psychocrypt
2017-12-08 23:42:43 +01:00
parent 1b99060808
commit a317606af9
1 changed files with 12 additions and 1 deletions
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xmrstak/backend/nvidia/nvcc_code/cuda_extra.cu
+12 -1
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@@ -404,7 +404,7 @@ extern "C" int cuda_get_deviceinfo(nvid_ctx* ctx)
( props.major < 3 ? 2 : 3 );
// increase bfactor for low end devices to avoid that the miner is killed by the OS
if(props.multiProcessorCount < 6)
if(props.multiProcessorCount <= 6)
ctx->device_bfactor += 2;
}
if(ctx->device_threads == -1)
@@ -418,6 +418,17 @@ extern "C" int cuda_get_deviceinfo(nvid_ctx* ctx)
// no limit by default 1TiB
size_t maxMemUsage = byteToMiB * byteToMiB;
if(props.major == 6)
if(props.multiProcessorCount < 15)
{
// limit memory usage for GPUs for pascal < GTX1070
maxMemUsage = size_t(2048u) * byteToMiB;
}
else if(props.multiProcessorCount <= 20)
{
// limit memory usage for GPUs for pascal GTX1070, GTX1080
maxMemUsage = size_t(4096u) * byteToMiB;
}
if(props.major < 6)
{
// limit memory usage for GPUs before pascal