Requirements

AthenaK is designed to use as few external libraries as possible, enabling so-called "hermetic builds". The only requirements are:

• the Kokkos Core library (can be cloned automatically with the source code)
• cmake (version 3.0 or later)
• a C++17 (or later) compliant compiler

Additional compilers and software provided by the vendor may be required to build AthenaK on heterogeneous architectures such as GPU clusters. For example, the CUDA toolkit is needed to build on NVidia GPUs. See the build or Notes for Specific Machines links for examples.

Additional, optional requirements are

• a MPI library (for distributed memory parallelism). On GPUs, device-aware MPI libraries are required.
• python3 for running many of the data analysis scripts included with the code