Dyablo : A simulation code for astrophysics fluids with adaptive mesh refinement in the exascale era

Abstract Dyablo is a new code for the simulation of astrophysical plasmas on exascale architectures using Adaptive Mesh Refinement. The code targets new and upcoming Exascale supercomputers with a new codebase in C++ using the Kokkos portability performance library. Kokkos allows us to write a unique code to target multiple hardware architectures including GPUs. Dyablo is based on modern software engineering principles to allow “separation of concerns” and collaboration between HPC engineers and physicists through abstract interfaces and modularity. Although Dyablo is still in development, the code is now deployable and usable. In this communication, we present the code, its philosophy, three example runs, and scalability results.