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fix: fix CUDA detection for older GPUs (#12300)

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Prioritize GPU compute capability over driver version to ensure
Pascal GPUs (CC 6.1) use compatible CUDA v12 libraries instead of v13.
This commit is contained in:
Beshoy Girgis
2025-09-16 09:47:06 -05:00
committed by GitHub
parent 93c64ea1b1
commit a1cff89b30
1 changed files with 9 additions and 1 deletions
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10
discover/cuda_common.go
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@@ -45,10 +45,18 @@ func cudaVariant(gpuInfo CudaGPUInfo) string {
}
}
// Check GPU compute capability FIRST
isOldGPU := gpuInfo.computeMajor < 7 || (gpuInfo.computeMajor == 7 && gpuInfo.computeMinor < 5)
if isOldGPU {
// GPU is Pascal or older (CC <= 7.4) - use CUDA v12 (supports CC 6.1)
return "v12"
}
// GPU is Turing or newer (CC >= 7.5) - can use newer CUDA
if gpuInfo.DriverMajor < 13 {
// The detected driver is older than 580 (Aug 2025)
// Warn if their CC is compatible with v13 and they should upgrade their driver to get better performance
if gpuInfo.computeMajor > 7 || (gpuInfo.computeMajor == 7 && gpuInfo.computeMinor >= 5) {
if !isOldGPU {
slog.Warn("old CUDA driver detected - please upgrade to a newer driver for best performance", "version", fmt.Sprintf("%d.%d", gpuInfo.DriverMajor, gpuInfo.DriverMinor))
}
return "v12"