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Meeting the Challenges of Modeling Astrophysical Thermonuclear Explosions: Castro, Maestro, and the AMReX Astrophysics Suite

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, , Citation M. Zingale et al 2018 J. Phys.: Conf. Ser. 1031 012024 DOI 10.1088/1742-6596/1031/1/012024

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1 Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800 USA

2 Center for Computational Sciences and Engineering, Lawrence Berkeley National Lab, Berkeley, CA 94720 USA

3 National Energy Research Scientific Computing Center, Lawrence Berkeley National Lab, Berkeley, CA 94720 USA

4 Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 USA

5 NVIDIA Corporation, 2788 San Tomas Expressway, Santa Clara, CA, 95050 USA

6 Los Alamos National Laboratory, Los Alamos, NM, 87545 USA

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1742-6596/1031/1/012024

Abstract

We describe the AMReX suite of astrophysics codes and their application to modeling problems in stellar astrophysics. Maestro is tuned to efficiently model subsonic convective flows while Castro models the highly compressible flows associated with stellar explosions. Both are built on the block-structured adaptive mesh refinement library AMReX. Together, these codes enable a thorough investigation of stellar phenomena, including Type Ia supernovae and X-ray bursts. We describe these science applications and the approach we are taking to make these codes performant on current and future many-core and GPU-based architectures.

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10.1088/1742-6596/1031/1/012024