Build farmer with CUDA support

.github/workflows/rust.yml

@@ -96,6 +96,13 @@ jobs:
         # Doesn't exist on self-hosted runners
         if: matrix.os == 'windows-2022'
 
+      - name: CUDA toolchain
+        uses: Jimver/cuda-toolkit@9b295696791d75d658d8de64c4a85097ad8abeaf # v0.2.16
+        with:
+          method: network
+          sub-packages: '["nvcc", "cudart"]'
+        if: runner.os == 'Linux' || runner.os == 'Windows'
+
       - name: Configure cache
         uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
         with:
@@ -108,7 +115,13 @@ jobs:
 
       - name: cargo clippy
         run: |
-          cargo -Zgitoxide -Zgit clippy --locked --all-targets --features "runtime-benchmarks" -- -D warnings
+          cargo -Zgitoxide -Zgit clippy --locked --all-targets --features runtime-benchmarks -- -D warnings
+        if: runner.os == 'macOS'
+
+      - name: cargo clippy
+        run: |
+          cargo -Zgitoxide -Zgit clippy --locked --all-targets --features runtime-benchmarks,cuda -- -D warnings
+        if: runner.os == 'Linux' || runner.os == 'Windows'
 
   cargo-docs:
     runs-on: ${{ fromJson(github.repository_owner == 'autonomys' && '["self-hosted", "ubuntu-20.04-x86-64"]' || '"ubuntu-22.04"') }}

.github/workflows/rustdoc.yml

@@ -37,9 +37,15 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-cargo-
 
+      - name: CUDA toolchain
+        uses: Jimver/cuda-toolkit@9b295696791d75d658d8de64c4a85097ad8abeaf # v0.2.16
+        with:
+          method: network
+          sub-packages: '["nvcc", "cudart"]'
+
       # Build the rust crate docs
       - name: Build Documentation
-        run: cargo -Zgitoxide -Zgit doc --all --no-deps --lib
+        run: cargo -Zgitoxide -Zgit doc --all --no-deps --lib --features cuda
         env:
           RUSTDOCFLAGS: "-Z unstable-options --enable-index-page"
 

.github/workflows/snapshot-build.yml

@@ -189,6 +189,13 @@ jobs:
           echo "PKG_CONFIG_ALLOW_CROSS=true" >> $GITHUB_ENV
         if: matrix.build.target == 'aarch64-unknown-linux-gnu'
 
+      - name: CUDA toolchain
+        uses: Jimver/cuda-toolkit@9b295696791d75d658d8de64c4a85097ad8abeaf # v0.2.16
+        with:
+          method: network
+          sub-packages: '["nvcc", "cudart"]'
+        if: runner.os == 'Linux' || runner.os == 'Windows'
+
       - name: Configure cache
         uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
         with:
@@ -202,6 +209,13 @@ jobs:
       - name: Build farmer
         run: |
           cargo -Zgitoxide -Zgit build --locked -Z build-std --target ${{ matrix.build.target }} --profile production --bin subspace-farmer
+        if: runner.os == 'macOS' || !startsWith(matrix.build.target, 'x86_64')
+
+      - name: Build farmer
+        run: |
+          cargo -Zgitoxide -Zgit build --locked -Z build-std --target ${{ matrix.build.target }} --profile production --bin subspace-farmer --features cuda
+        # TODO: We don't configure CUDA for cross-compilation purposes, hence only x86-64 for now
+        if: (runner.os == 'Linux' || runner.os == 'Windows') && startsWith(matrix.build.target, 'x86_64')
 
       - name: Build node
         run: |

Dockerfile-farmer

@@ -40,11 +40,24 @@ COPY test /code/test
 # Up until this line all Rust images in this repo should be the same to share the same layers
 
 RUN \
+    CUDA_ARCH=$(uname -p | sed "s/aarch64/arm64/g") && \
+    curl -OL https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/$CUDA_ARCH/cuda-keyring_1.1-1_all.deb && \
+    dpkg -i cuda-keyring_1.1-1_all.deb && \
+    echo "deb [signed-by=/usr/share/keyrings/cuda-archive-keyring.gpg] https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/$CUDA_ARCH/ /" | tee /etc/apt/sources.list.d/cuda-ubuntu2004-$CUDA_ARCH.list && \
+    curl -OL https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/$CUDA_ARCH/cuda-ubuntu2004.pin && \
+    mv cuda-ubuntu2004.pin /etc/apt/preferences.d/cuda-repository-pin-600 && \
+    apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends cuda-minimal-build-12-6
+
+RUN \
+    export PATH=/usr/local/cuda/bin${PATH:+:${PATH}} && \
+    export LD_LIBRARY_PATH=/usr/local/cuda/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}} && \
     /root/.cargo/bin/cargo -Zgitoxide -Zgit build \
         --locked \
         -Z build-std \
         --profile $PROFILE \
         --bin subspace-farmer \
+        --features cuda \
         --target $(uname -p)-unknown-linux-gnu && \
     mv target/*/*/subspace-farmer subspace-farmer && \
     rm -rf target