parthenon

Parthenon AMR infrastructure

Required Dependencies

CMake 3.10 or greater
gcc or intel compiler
mpi
openMP
hdf5

Dependencies Other

catch2

Installation

Basics

mkdir build
cd build
cmake ../
make
make test

Parallel_for wrapper options

Following options are available to configure the default behavior of the par_for wrappers.

PAR_LOOP_LAYOUT (sets default layout)
- MANUAL1D_LOOP maps to Kokkos::RangePolicy (default for CUDA backend)
- MDRANGE maps to Kokkos::MDRangePolicy
- SIMDFOR_LOOP maps to standard for loops with #pragma omp simd (default for OpenMP backend)
- TPTTR_LOOP maps to double nested loop with Kokkos::TeamPolicy and Kokkos::ThreadVectorRange
- TPTVR_LOOP maps to double nested loop with Kokkos::TeamPolicy and Kokkos::ThreadVectorRange
- TPTTRTVR_LOOP maps to triple nested loop with Kokkos::TeamPolicy, Kokkos::TeamThreadRange and Kokkos::ThreadVectorRange

Kokkos options

Kokkos can be configured through cmake options, see https://github.com/kokkos/kokkos/wiki/Compiling

For example to build with the OpenMP backend for Intel Skylake architecture using Intel compilers

mkdir build-omp-skx && cd build-omp-skx
cmake -DKokkos_ENABLE_OPENMP=On -DCMAKE_CXX_COMPILER=icpc -DKokkos_ARCH_SKX=On ../

or to build for NVIDIA V100 GPUs (using nvcc compiler for GPU code)

mkdir build-cuda-v100 && cd build-cuda-v100
cmake -DKokkos_ENABLE_CUDA=On -DCMAKE_CXX_COMPILER=$(pwd)/../external/kokkos/bin/nvcc_wrapper -DKokkos_ARCH_VOLTA70=On -DKokkos_ENABLE_CUDA_LAMBDA=True ../

Developing/Contributing

Please see the developer guidelines for additional information.

Documentation

Please see the docs/ folder for additional documentation on features and how to use them.

Contributors

Name	Handle	Team
Jonah Miller	@Yurlungur	LANL Physics
Josh Dolence	@jdolence	LANL Physics
Andrew Gaspar	@AndrewGaspar	LANL Computer Science
Philipp Grete	@pgrete	Athena Physics
Forrest Glines	@forrestglines	Athena Physics
Jim Stone	@jmstone	Athena Physics

AndrewGaspar/parthenon