diff --git a/.github/workflows/cuda/Linux-env.sh b/.github/workflows/cuda/Linux-env.sh
new file mode 100644
index 0000000..d8aeb19
--- /dev/null
+++ b/.github/workflows/cuda/Linux-env.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+# From https://github.com/pyg-team/pyg-lib/
+
+case ${1} in
+  cu121)
+    export CUDA_HOME=/usr/local/cuda-12.1
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  cu118)
+    export CUDA_HOME=/usr/local/cuda-11.8
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  cu117)
+    export CUDA_HOME=/usr/local/cuda-11.7
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  cu116)
+    export CUDA_HOME=/usr/local/cuda-11.6
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  cu115)
+    export CUDA_HOME=/usr/local/cuda-11.5
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  cu113)
+    export CUDA_HOME=/usr/local/cuda-11.3
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  cu102)
+    export CUDA_HOME=/usr/local/cuda-10.2
+    export LD_LIBRARY_PATH=${CUDA_HOME}/lib64:${LD_LIBRARY_PATH}
+    export PATH=${CUDA_HOME}/bin:${PATH}
+    ;;
+  *)
+    ;;
+esac
\ No newline at end of file
diff --git a/.github/workflows/cuda/Linux.sh b/.github/workflows/cuda/Linux.sh
new file mode 100644
index 0000000..93f6262
--- /dev/null
+++ b/.github/workflows/cuda/Linux.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# Ubuntu version
+UBUNTU_VER=${1}
+OS=$(echo ${UBUNTU_VER} | tr -d '-' | tr -d '.')
+
+# CUDA major and minor version
+CUDA_VER_FULL=${2}
+CUDA_VER_ARR=($(echo ${CUDA_VER_FULL} | tr "." " "))
+CUDA_VER="${CUDA_VER_ARR[0]}.${CUDA_VER_ARR[1]}"
+CUDA_VER_ID="${CUDA_VER_ARR[0]}_${CUDA_VER_ARR[1]}"
+CUDA_VER_SHORT="cu${CUDA_VER_ARR[0]}${CUDA_VER_ARR[1]}"
+
+case ${CUDA_VER_SHORT} in
+  cu121)
+    CUDA=12.1
+    APT_KEY=${OS}-${CUDA/./-}-local
+    FILENAME=cuda-repo-${APT_KEY}_${CUDA}.1-530.30.02-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}.1/local_installers
+    ;;
+  cu118)
+    CUDA=11.8
+    APT_KEY=${OS}-${CUDA/./-}-local
+    FILENAME=cuda-repo-${APT_KEY}_${CUDA}.0-520.61.05-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}.0/local_installers
+    ;;
+  cu117)
+    CUDA=11.7
+    APT_KEY=${OS}-${CUDA/./-}-local
+    FILENAME=cuda-repo-${APT_KEY}_${CUDA}.1-515.65.01-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}.1/local_installers
+    ;;
+  cu116)
+    CUDA=11.6
+    APT_KEY=${OS}-${CUDA/./-}-local
+    FILENAME=cuda-repo-${APT_KEY}_${CUDA}.2-510.47.03-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}.2/local_installers
+    ;;
+  cu115)
+    CUDA=11.5
+    APT_KEY=${OS}-${CUDA/./-}-local
+    FILENAME=cuda-repo-${APT_KEY}_${CUDA}.2-495.29.05-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}.2/local_installers
+    ;;
+  cu113)
+    CUDA=11.3
+    APT_KEY=${OS}-${CUDA/./-}-local
+    FILENAME=cuda-repo-${APT_KEY}_${CUDA}.0-465.19.01-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}.0/local_installers
+    ;;
+  cu102)
+    CUDA=10.2
+    APT_KEY=${CUDA/./-}-local-${CUDA}.89-440.33.01
+    FILENAME=cuda-repo-${OS}-${APT_KEY}_1.0-1_amd64.deb
+    URL=https://developer.download.nvidia.com/compute/cuda/${CUDA}/Prod/local_installers
+    ;;
+  *)
+    echo "Unrecognized CUDA_VERSION=${CUDA_VER_SHORT}"
+    exit 1
+    ;;
+esac
+
+wget -nv 2>&1 https://developer.download.nvidia.com/compute/cuda/repos/${OS}/x86_64/cuda-${OS}.pin
+sudo mv cuda-${OS}.pin /etc/apt/preferences.d/cuda-repository-pin-600
+wget -nv 2>&1 ${URL}/${FILENAME}
+sudo dpkg -i ${FILENAME}
+
+if [ "${CUDA_VER_SHORT}" = "cu117" ] || [ "${CUDA_VER_SHORT}" = "cu118" ] || [ "${CUDA_VER_SHORT}" = "cu121" ]; then
+  sudo cp /var/cuda-repo-${APT_KEY}/cuda-*-keyring.gpg /usr/share/keyrings/
+else
+  sudo apt-key add /var/cuda-repo-${APT_KEY}/7fa2af80.pub
+fi
+
+sudo apt-get -qq update
+sudo apt install -y cuda-nvcc-${CUDA/./-} cuda-libraries-dev-${CUDA/./-} cuda-command-line-tools-${CUDA/./-}
+sudo apt clean
+
+rm -f ${FILENAME}
\ No newline at end of file
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
new file mode 100644
index 0000000..03fecce
--- /dev/null
+++ b/.github/workflows/ubuntu.yml
@@ -0,0 +1,77 @@
+name: Build Test (Ubuntu CUDA)
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [ assigned, opened, synchronize, reopened ]
+
+jobs:
+  build:
+    name: ${{ matrix.os }}-cuda-${{ matrix.cuda-version }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-22.04, ubuntu-20.04]
+        cuda-version: [11.8.0, 12.1.1]
+    env:
+      CCACHE_DIR: ${{ github.workspace }}/ccache
+      CCACHE_BASEDIR: ${{ github.workspace }}
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Setup Ubuntu
+        run: |
+          sudo apt-get update     
+          sudo apt-get install -y \
+            build-essential \
+            wget
+          wget -nv https://github.com/ccache/ccache/releases/download/v4.9.1/ccache-4.9.1-linux-x86_64.tar.xz
+          sudo tar xf ccache-4.9.1-linux-x86_64.tar.xz -C /usr/bin --strip-components=1 --no-same-owner ccache-4.9.1-linux-x86_64/ccache
+          rm -f ccache-*-linux-x86_64.tar.xz
+          ccache --version
+      
+      - name: Free disk space
+        if: ${{ matrix.os == 'ubuntu-20.04' }}
+        run: |
+          df -h
+          sudo rm -rf /usr/share/dotnet /usr/local/lib/android /usr/lib/php* /opt/ghc || true
+          df -h
+  
+      - name: Restore CUDA Cache
+        uses: actions/cache@v4
+        id: cuda-cache
+        with:
+          key: cuda-${{matrix.cuda-version}}-ubuntu
+          path: |
+            /usr/local/cuda*
+
+      - name: Install CUDA
+        if: ${{ steps.cuda-cache.outputs.cache-hit != 'true' }}
+        run: |
+          bash .github/workflows/cuda/${{ runner.os }}.sh ${{ matrix.os }} ${{ matrix.cuda-version }}
+
+      - name: Cache Build
+        uses: actions/cache@v4
+        id: cache-builds
+        with:
+          key: ${{ matrix.os }}-cuda-${{ matrix.cuda-version }}-ccache-${{ github.run_id }}
+          restore-keys: ${{ matrix.os }}-cuda-${{ matrix.cuda-version }}-ccache-
+          path: ${{ env.CCACHE_DIR }}
+
+      - name: Build
+        run: |
+          source .github/workflows/cuda/${{ runner.os }}-env.sh
+          make clean
+          make -j$(nproc)
+          make test
+
+      - name: Clean Compiler Cache
+        run: |
+          ccache --show-stats
+          ccache --evict-older-than 7d
+          ccache -s
\ No newline at end of file