Mesh Cache Prototype

Building

Only Kokkos and MPI are required. Since Kokkos core is header-only, this is pretty easy to build. For serial:

mkdir -P mesh_cache_prototype/repos
cd mesh_cache_prototype/repos
git clone https://github.com/amanzi/mesh_cache_prototype2
git clone https://github.com/kokkos/kokkos
cd ../
mkdir build
cd build
cmake -DKokkos_DIR=../repos/kokkos -DCMAKE_BUILD_TYPE=Debug ../repos/mesh_cache_prototype2

Standard other cmake options apply. If cmake doesn't find your MPI, you may have to give it some hints, e.g. -DMPI_DIR=...

Current Tests

• test_framework: does some work, only uses a framework mesh. Passes.
• test_ap_cached: Mimics this test using on-device calls, assuming EVERYTHING it uses is cached. Passes on Kokkos::Serial.
• test_const_correct*: Need some tests to ensure the a poorly-written kernel cannot change the mesh data/cache. Likely this test SHOULD NOT COMPILE, but if it does, it should pass. Right now it can -- this test fails!
• test_ap_framework: Develop a MeshCache<HOST> specialization and use it to run a mix of CACHED operations and FRAMEWORK operations on HOST.

Future Tests

• test_ap_cached_cuda: Same as above, but using CUDA. This will check that the Cache implementation on device is correct.
• test_ap_compute_host:: See if we can get COMPUTE on HOST to work without relying on the framework. Cache a few things (will need to add node coordinates) and then delete the framework and compute a few things (e.g. cell volumes, etc).
• test_ap_compute_device:: Bsed on test_ap_cached_cuda, see how much we can COMPUTE on DEVICE.