Add Support for Building with Kokkos in Actions

.github/workflows/cmake-cuda.yml

@@ -0,0 +1,61 @@
+name: CMake test matrix with CUDA
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+jobs:
+  build:
+    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
+    runs-on: ubuntu-22.04
+    container: nvidia/cuda:12.3.0-devel-ubuntu22.04
+
+    strategy:
+      matrix:
+        mempool: [on, off]
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        path: omega_h
+
+    - uses: actions/checkout@v4
+      with:
+        repository: kokkos/kokkos
+        path: kokkos
+
+    - name: Install CMake and ZLib
+      run: apt update && apt install -y cmake zlib1g-dev
+
+    - name: Configure Kokkos
+      shell: bash
+      working-directory: ${{github.workspace}}/kokkos
+      run: cmake .
+           -Bbuild
+           -DKokkos_ENABLE_CUDA=on
+           -DKokkos_ARCH_TURING75=on
+           -DCMAKE_INSTALL_PREFIX=build/install
+
+    - name: Build Kokkos
+      shell: bash
+      run: cmake --build $GITHUB_WORKSPACE/kokkos/build --target install
+
+    - name: Configure CMake
+      shell: bash
+      working-directory: ${{github.workspace}}/omega_h
+      run: cmake .
+           -Bbuild
+           -DCMAKE_VERBOSE_MAKEFILE=on
+           -DOmega_h_USE_MPI=off
+           -DOmega_h_USE_CUDA=on
+           -DOmega_h_CUDA_ARCH=75
+           -DOmega_h_USE_Kokkos=on
+           -DKokkos_PREFIX=$GITHUB_WORKSPACE/kokkos/build/install
+           -DBUILD_TESTING=on
+           -DBUILD_SHARED_LIBS=off
+           -DENABLE_CTEST_MEMPOOL=${{ matrix.mempool }}
+
+    - name: Build
+      working-directory: ${{github.workspace}}/omega_h/build
+      shell: bash
+      run: cmake --build . -j2

.github/workflows/cmake.yml

@@ -11,33 +11,61 @@ jobs:
     strategy:
       matrix:
         compiler: [g++, clang++]
+        kokkos: [on, off]
+        mempool: [on, off]
+        exclude:
+        - kokkos: off
+          mempool: on
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+      with:
+        path: omega_h
 
-    - name: Create Build Environment
-      run: cmake -E make_directory ${{runner.workspace}}/build
+    - uses: actions/checkout@v4
+      if: ${{ matrix.kokkos == 'on' }}
+      with:
+        repository: kokkos/kokkos
+        path: kokkos
+
+    - name: Configure Kokkos
+      if: ${{ matrix.kokkos == 'on' }}
+      shell: bash
+      working-directory: ${{github.workspace}}/kokkos
+      run: cmake .
+           -Bbuild
+           -DCMAKE_CXX_COMPILER=${{ matrix.compiler }}
+           -DCMAKE_INSTALL_PREFIX=build/install
+
+    - name: Build Kokkos
+      if: ${{ matrix.kokkos == 'on' }}
+      shell: bash
+      run: cmake --build $GITHUB_WORKSPACE/kokkos/build --target install
 
     - name: Configure CMake
       shell: bash
-      working-directory: ${{runner.workspace}}/build
-      run: cmake $GITHUB_WORKSPACE
+      working-directory: ${{github.workspace}}/omega_h
+      run: cmake .
+           -Bbuild
            -DCMAKE_CXX_COMPILER=${{ matrix.compiler }}
            -DCMAKE_VERBOSE_MAKEFILE=on
            -DOmega_h_USE_MPI=off
-           -DOmega_h_USE_CUDA=off
+           -DOmega_h_USE_Kokkos=${{ matrix.kokkos }}
+           -DKokkos_PREFIX=$GITHUB_WORKSPACE/kokkos/build/install
            -DBUILD_TESTING=ON
+           -DBUILD_SHARED_LIBS=OFF
+           -DENABLE_CTEST_MEMPOOL=${{ matrix.mempool }}
 
     - name: Build
-      working-directory: ${{runner.workspace}}/build
+      working-directory: ${{github.workspace}}/omega_h/build
       shell: bash
-      run: cmake --build .
+      run: cmake --build . -j2
 
     - name: Test
-      working-directory: ${{runner.workspace}}/build
+      working-directory: ${{github.workspace}}/omega_h/build
       shell: bash
       run: ctest
 
     - name: Print
       if: always()
-      run: cat ${{runner.workspace}}/build/Testing/Temporary/LastTest.log
+      run: cat ${{github.workspace}}/omega_h/build/Testing/Temporary/LastTest.log