As the push towards exascale hardware has increased the diversity of system architectures,
performance portability has become a critical aspect for scientific software. We describe the …

Context. Computational astrophysics nowadays routinely combines grid-adaptive
capabilities with modern shock-capturing, high resolution spatio-temporal integration …

An accurate assessment of the physical states of the Earth system is an essential component
of many scientific, societal, and economical considerations. These assessments are …

Motivated by observations of multiphase galaxy outflows, we explore the impact of isotropic
and anisotropic electron thermal conduction on the evolution of radiatively cooled, cold …

General relativistic magnetohydrodynamic (GRMHD) simulations have revolutionized our
understanding of black hole accretion. Here, we present a GPU-accelerated GRMHD code …

The Simulation EnviRonment for Geomorphology, Hydrodynamics, and Ecohydrology in
Integrated form (SERGHEI) is a multi-dimensional, multi-domain, and multi-physics model …

Context. The exascale super-computers becoming available rely on hybrid energy-efficient
architectures that involve an accelerator such as a graphics processing unit (GPU) …

Castro is a highly parallel, adaptive mesh, multiphysics simulation code for compressible
astrophysical flows. It has been used to simulate different progenitor models of Type Ia …

On the path to exascale the landscape of computer device architectures and corresponding
programming models has become much more diverse. While various low-level performance …

Our previously proposed metric for performance portability has been successful in spurring
the development of tools and encouraging fair and meaningful evaluations of applications …