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

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.

submitted to Proceedings of AstroNum 2017 / Journal of Physics Conference Series; 10 pages, 6 figures; all code freely available on github (see text for repo links)

References in corpus (4)

• Two-Dimensional Core-Collapse Supernova Models with Multi-Dimensional Transport
• Block Structured Adaptive Mesh and Time Refinement for Hybrid, Hyperbolic + N-body Systems
• Very Low Energy Supernovae: Light Curves and Spectra of Shock Breakout
• Multidimensional Modeling of Type I X-ray Bursts. II. Two-Dimensional Convection in a Mixed H/He Accretor

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• Numerical Stability of Detonations in White Dwarf Simulations
• Dynamics of Laterally Propagating Flames in X-ray Bursts. I. Burning Front Structure
• Dynamics and observational signatures of core-collapse supernovae with central engines: hydrodynamics simulations with Monte Carlo post-processing