AthenaPK Compilation Steps

ArchMachineConfig.cmake

message(STATUS "Configuring cmake for Arch-based distros")

# Configure cuda install path
set(CUDA_ROOT "/opt/cuda" CACHE FILEPATH "Locate cuda compiler and libraries")

# Configure kokkos archtecture
set(Kokkos_ENABLE_CUDA ON CACHE BOOL "Enable cuda backend for Kokkos")
set(GPU_DEVICE_ARCH "TURING75" CACHE STRING "GPU device architecture")
set(Kokkos_ARCH_${GPU_DEVICE_ARCH} ON CACHE BOOL "Enable Kokkos optimizations for ${GPU_DEVICE_ARCH} architecture only")

# Configure g++-11 and additional compile flags
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I${CMAKE_ROOT}/targets/x86_64-linux/include -L${CUDA_ROOT}/targets/x86_64-linux/lib" CACHE STRING "Extra cxx flags for compilation")
set(CMAKE_CXX_COMPILER "/usr/bin/g++-11")

compile.sh

#!/bin/sh

set -ex

sudo pacman -Syu --no-confirm

# You can use ninja or make
# I am using ninja because it is faster than make
sudo pacman -S --no-confirm cuda cuda-tools git openmpi hdf5-openmpi gcc11 gcc11-libs ninja

git clone https://github.com/parthenon-hpc-lab/athenapk --recurse-submodules
cd athenapk

curl -fsOSL https://gist.githubusercontent.com/tbhaxor/2772c2c8726a56cf2719e0be259817a7/raw/4a322beef168fb521d637811da24d1f4fb304982/ArchMachineConfig.cmake

# You can omit "-G Ninja" to use make
cmake -Bbuild -DMACHINE_CFG=ArchMachineConfig.cmake -G Ninja
cmake --build build -- -j $(nproc)

# (Optional) if you want install the athenaPK globally
sudo install -g root -o root -m=0755 -s build/bin/athenaPK /usr/local/bin