ci: add baseline builds

.github/workflows/ci-baseline.yml

@@ -0,0 +1,92 @@
+name: ci-baseline
+
+on:
+  pull_request:
+    types: [ opened, reopened, synchronize ]
+  push:
+    branches:
+      - 'main'
+
+concurrency:
+  group: ${{ github.event_name }}-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  CI:
+    name: baseline
+    continue-on-error: false
+    strategy:
+      fail-fast: false
+      matrix:
+        image:
+          - amd64-ubuntu-22.04-clang-14-clang-14-cpp
+          - amd64-ubuntu-20.04-gcc-9-11.2.0-cpp
+        build_type:
+          - Release
+          - Debug
+
+    runs-on: ubuntu-latest
+    container:
+      image: lifflander1/vt:${{ matrix.image }}
+    # env:
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Checkout vt
+        uses: actions/checkout@v4
+        with:
+          repository: DARMA-tasking/vt
+          path: vt
+
+      - name: Checkout magistrate
+        uses: actions/checkout@v4
+        with:
+          repository: DARMA-tasking/magistrate
+          path: vt/lib/checkpoint
+
+      - name: Checkout kokkos
+        uses: actions/checkout@v4
+        with:
+          repository: kokkos/kokkos
+          path: kokkos
+          ref: develop
+
+      - name: Configure vt
+        working-directory: vt
+        run: |
+          cmake -B builddir \
+            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
+            -DVT_BUILD_EXAMPLES=OFF \
+            -DVT_BUILD_TESTS=OFF \
+            -Dvt_trace_enabled=ON
+
+      - name: Build vt
+        working-directory: vt
+        run: |
+          cmake --build builddir --target install
+
+      - name: Configure kokkos
+        working-directory: kokkos
+        run: |
+          cmake -B builddir \
+            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
+
+      - name: Build kokkos
+        working-directory: kokkos
+        run: |
+          cmake --build builddir --target install
+
+      - name: Configure distBVH
+        run: |
+          cmake -B builddir \
+          -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
+
+      - name: Build distBVH
+        run: |
+          cmake --build builddir --target install
+
+      - name: Run tests
+        working-directory: builddir
+        run: |
+          ctest --output-on-failure

README.md

@@ -13,7 +13,8 @@ Building is done via CMake (version 3.15 required). Detailed instructions can be
 BVH requires a compiler that supports C++17. This includes at least clang 5 or gcc version 7.0.
 
 BVH uses [DARMA/vt](https://github.com/DARMA-tasking/vt) for asynchronous tasking. For more information about DARMA/vt
-please consult the [documentation](https://darma-tasking.github.io/docs/html/index.html). 
+please consult the [documentation](https://darma-tasking.github.io/docs/html/index.html).
+BVH requires [Kokkos](https://github.com/kokkos/kokkos) version `4.0` or later.
 
 VTK can also be used for visualizing the the tree data structure.
 

docs/building.rst

@@ -18,6 +18,8 @@ that are summarized here:
 
 - :ref:`vt_DIR <cmake-vt-dir>`
 - :ref:`vt_ROOT <cmake-vt-root>`
+- :ref:`Kokkos_DIR <cmake-kokkos-dir>`
+- :ref:`Kokkos_ROOT <cmake-kokkos-root>`
 - :ref:`BVH_VT_INSERTABLE_COLLECTIONS <cmake-bvh-vt-insertable-collections>`
 - :ref:`VTK_ROOT <cmake-vtk-root>`
 - :ref:`BVH_DEBUG_LEVEL <cmake-bvh-debug-level>`
@@ -67,6 +69,23 @@ BVH can optionally use insertable collections. Use the following to turn off ins
 
     -DBVH_VT_INSERTABLE_COLLECTIONS=OFF
 
+Locating Kokkos
+-----------------
+
+BVH is dependent on `Kokkos`_.
+
+.. _cmake-kokkos-dir:
+
+.. code-block:: sh
+
+    -DKokkos_DIR=path/to/kokkos/install/cmake
+
+.. _cmake-kokkos-root:
+
+.. code-block:: sh
+
+    -DKokkos_ROOT=path/to/kokkos/install
+
 Building with VTK
 -----------------
 

src/bvh/math/common.hpp

@@ -54,6 +54,7 @@ namespace bvh
 
 #ifdef __CUDA_ARCH__
     constexpr double epsilon = DBL_EPSILON;
+    constexpr double epsilonf = FLT_EPSILON;
 #else
     constexpr double epsilon = std::numeric_limits< double >::epsilon();
     constexpr double epsilonf = std::numeric_limits< float >::epsilon();

src/bvh/util/bits.hpp

@@ -37,7 +37,9 @@
 #include <cstdint>
 #include <type_traits>
 
+#if !defined(KOKKOS_COMPILER_NVCC)
 #include <immintrin.h>
+#endif
 
 namespace bvh
 {
@@ -75,7 +77,7 @@ namespace bvh
 #error "unsupported compiler for find first set"
 #endif
   }
-  
+
   inline std::uint64_t ffs( std::uint64_t _val )
   {
 #ifdef __GNUC__
@@ -84,17 +86,25 @@ namespace bvh
 #error "unsupported compiler for find first set"
 #endif
   }
-  
+
   inline std::uint32_t clz( std::uint32_t _val )
   {
+#if !defined(KOKKOS_COMPILER_NVCC)
     return _lzcnt_u32( _val );
+#else
+    return 0u;
+#endif
   }
-  
+
   inline std::uint64_t clz( std::uint64_t _val )
   {
+#if !defined(KOKKOS_COMPILER_NVCC)
     return _lzcnt_u64( _val );
+#else
+    return 0u;
+#endif
   }
-  
+
   inline int bsr( unsigned long _val )
   {
 #ifdef __GNUC__
@@ -109,7 +119,7 @@ namespace bvh
   {
     return bsr( _val );
   }
-  
+
   inline bool is_pow2( unsigned _val )
   {
     return _val & ( _val - 1 );