Support arm64 for CUDA feature

src/nvidia-cuda/install.sh

@@ -44,10 +44,24 @@ export DEBIAN_FRONTEND=noninteractive
 
 check_packages wget ca-certificates
 
+# Determine system architecture and set NVIDIA repository URL accordingly
+ARCH=$(uname -m)
+case $ARCH in
+    x86_64)
+        NVIDIA_ARCH="x86_64"
+        ;;
+    aarch64 | arm64)
+        NVIDIA_ARCH="arm64"
+        ;;
+    *)
+        echo "Unsupported architecture: $ARCH"
+        exit 1
+        ;;
+esac
+
 # Add NVIDIA's package repository to apt so that we can download packages
-# Always use the ubuntu2004 repo because the other repos (e.g., debian11) are missing packages
 # Updating the repo to ubuntu2204 as ubuntu 20.04 is going out of support. 
-NVIDIA_REPO_URL="https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64"
+NVIDIA_REPO_URL="https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/$NVIDIA_ARCH"
 KEYRING_PACKAGE="cuda-keyring_1.0-1_all.deb"
 KEYRING_PACKAGE_URL="$NVIDIA_REPO_URL/$KEYRING_PACKAGE"
 KEYRING_PACKAGE_PATH="$(mktemp -d)"
@@ -62,6 +76,10 @@ nvtx_pkg="cuda-nvtx-${CUDA_VERSION/./-}"
 toolkit_pkg="cuda-toolkit-${CUDA_VERSION/./-}"
 if ! apt-cache show "$cuda_pkg"; then
     echo "The requested version of CUDA is not available: CUDA $CUDA_VERSION"
+    if [ "$NVIDIA_ARCH" = "arm64" ]; then
+        echo "Note: arm64 supports limited CUDA versions. Please check available versions:"
+        echo "https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/arm64"
+    fi
     exit 1
 fi
 
@@ -93,6 +111,9 @@ if [ "$INSTALL_CUDNN" = "true" ]; then
 
     if ! apt-cache show "$cudnn_pkg_version"; then
         echo "The requested version of cuDNN is not available: cuDNN $CUDNN_VERSION for CUDA $CUDA_VERSION"
+        if [ "$NVIDIA_ARCH" = "arm64" ]; then
+            echo "Note: arm64 has limited cuDNN package availability"
+        fi
         exit 1
     fi
 
@@ -112,6 +133,9 @@ if [ "$INSTALL_CUDNNDEV" = "true" ]; then
     fi
     if ! apt-cache show "$cudnn_dev_pkg_version"; then
         echo "The requested version of cuDNN development package is not available: cuDNN $CUDNN_VERSION for CUDA $CUDA_VERSION"
+        if [ "$NVIDIA_ARCH" = "arm64" ]; then
+            echo "Note: arm64 has limited cuDNN development package availability"
+        fi
         exit 1
     fi