Compile CUDA in CI

Author: zfergus

.github/workflows/cuda.yml

@@ -0,0 +1,76 @@
+name: Build
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    paths:
+      - '.github/workflows/cuda.yml'
+      - 'cmake/**'
+      - 'src/**'
+      - 'tests/**'
+      - 'python/**'
+      - 'CMakeLists.txt'
+
+env:
+  CTEST_OUTPUT_ON_FAILURE: ON
+  CTEST_PARALLEL_LEVEL: 2
+
+jobs:
+  Build:
+    name: CUDA (${{ matrix.config }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - Debug
+          # - Release # cannot run multiple cuda-toolkit jobs in parallel
+    steps:
+      - name: Checkout repository
+        uses: actions/[email protected]
+        with:
+          fetch-depth: 10
+
+      - name: Dependencies
+        run: |
+          sudo apt-get install ccache
+          echo 'CACHE_PATH=~/.cache/ccache' >> "$GITHUB_ENV"
+
+      - uses: Jimver/[email protected]
+        id: cuda-toolkit
+        with:
+          cuda: '12.3.2'
+
+      - name: Get number of CPU cores
+        uses: SimenB/[email protected]
+        id: cpu-cores
+
+      - name: Cache Build
+        id: cache-build
+        uses: actions/[email protected]
+        with:
+          path: ${{ env.CACHE_PATH }}
+          key: ${{ runner.os }}-${{ matrix.config }}-cache
+
+      - name: Prepare ccache
+        run: |
+          ccache --max-size=1.0G
+          ccache -V && ccache --show-config
+          ccache --show-stats && ccache --zero-stats
+
+      - name: Configure
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. \
+            -DIPC_TOOLKIT_WITH_CUDA=ON \
+            -DSCALABLE_CCD_CUDA_ARCHITECTURES=75 \
+            -DIPC_TOOLKIT_BUILD_TESTS=ON \
+            -DIPC_TOOLKIT_BUILD_PYTHON=ON \
+            -DCMAKE_BUILD_TYPE=${{ matrix.config }}
+
+      - name: Build
+        run: |
+          cmake --build build -j ${{ steps.cpu-cores.outputs.count }}
+          ccache --show-stats

CMakeLists.txt

@@ -211,37 +211,6 @@ endif()
 # Use C++17
 target_compile_features(ipc_toolkit PUBLIC cxx_std_17)
 
-################################################################################
-# CUDA
-################################################################################
-
-if(IPC_TOOLKIT_WITH_CUDA)
-  include(CheckLanguage)
-  check_language(CUDA)
-  if(CMAKE_CUDA_COMPILER)
-    enable_language(CUDA)
-  else()
-    message(FATAL_ERROR "No CUDA support found!")
-  endif()
-
-  # We need to explicitly state that we need all CUDA files in the particle
-  # library to be built with -dc as the member functions could be called by
-  # other libraries and executables.
-  set_target_properties(ipc_toolkit PROPERTIES CUDA_SEPARABLE_COMPILATION ON)
-
-  if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.24.0")
-    set(CMAKE_CUDA_ARCHITECTURES "native")
-  else()
-    include(FindCUDA/select_compute_arch)
-    CUDA_DETECT_INSTALLED_GPUS(CUDA_ARCH_LIST)
-    string(STRIP "${CUDA_ARCH_LIST}" CUDA_ARCH_LIST)
-    string(REPLACE " " ";" CUDA_ARCH_LIST "${CUDA_ARCH_LIST}")
-    string(REPLACE "." "" CUDA_ARCH_LIST "${CUDA_ARCH_LIST}")
-    set(CMAKE_CUDA_ARCHITECTURES ${CUDA_ARCH_LIST})
-  endif()
-  set_target_properties(scalable_ccd PROPERTIES CUDA_ARCHITECTURES "${CMAKE_CUDA_ARCHITECTURES}")
-endif()
-
 ################################################################################
 # Tests
 ################################################################################