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Infer compute cap from CUDA_ARCH_LIST if possible #1401

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Infer compute cap from CUDA_ARCH_LIST if possible #1401

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17 changes: 16 additions & 1 deletion .github/container/build-jax.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,24 @@ print_var() {
echo "$1: ${!1}"
}

# CUDA_ARCH_LIST comes from the dl-cuda-base image starting with CUDA 12.9
# It is a space-separated list of compute capabilities, e.g. "7.5 8.0 12.0"
supported_compute_capabilities() {
ARCH=$1
if [[ "${ARCH}" == "amd64" ]]; then
# Infer the compute capabilities from the CUDA_ARCH_LIST variable if it is set
# Example: "7.5 8.0 12.0" -> "sm_75,sm_80,compute_120"
if [[ -n "${CUDA_ARCH_LIST}" ]]; then
read -r -a _CUDA_ARCH_LIST <<< "${CUDA_ARCH_LIST}"
SM_LIST=""
for _ARCH in "${_CUDA_ARCH_LIST[@]}"; do
if [[ "${_ARCH}" == "${_CUDA_ARCH_LIST[-1]}" ]]; then
SM_LIST="${SM_LIST}compute_${_ARCH//./}"
else
SM_LIST="${SM_LIST}sm_${_ARCH//./},"
fi
done
echo "${SM_LIST}"
elif [[ "${ARCH}" == "amd64" ]]; then
echo "sm_75,sm_80,sm_86,sm_90,sm_100,compute_120"
elif [[ "${ARCH}" == "arm64" ]]; then
echo "sm_80,sm_86,sm_90,sm_100,compute_120"
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