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CUDA: Changing the CUDA scheduling strategy to spin (#16585)

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* CUDA set scheduling strategy to spinning for cc121

* Using prop.major and prop.minor, include HIP and MUSA

* Exclude HIP and MUSA

* Remove trailing whitespace

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

* Remove empty line

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

---------

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
This commit is contained in:
Julius Tischbein
2025-10-15 13:54:15 +02:00
committed by GitHub
parent 554fd578a5
commit 5acd455460
1 changed files with 9 additions and 0 deletions
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ggml/src/ggml-cuda/ggml-cuda.cu
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@@ -273,6 +273,15 @@ static ggml_cuda_device_info ggml_cuda_init() {
} else if (device_name.substr(0, 21) == "NVIDIA GeForce GTX 16") {
turing_devices_without_mma.push_back({ id, device_name });
}
// Temporary performance fix:
// Setting device scheduling strategy for iGPUs with cc121 to "spinning" to avoid delays in cuda synchronize calls.
// TODO: Check for future drivers the default scheduling strategy and
// remove this call again when cudaDeviceScheduleSpin is default.
if (prop.major == 12 && prop.minor == 1) {
CUDA_CHECK(cudaSetDeviceFlags(cudaDeviceScheduleSpin));
}
#endif // defined(GGML_USE_HIP)
}