articleThe Astrophysical Journal Supplement SeriesJun 25, 2020BRONZE OA

The Athena++ Adaptive Mesh Refinement Framework: Design and Magnetohydrodynamic Solvers

JMJames M. StoneKTKengo TomidaCJChristopher J. WhiteKGKyle G. Felker
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Abstract

Abstract The design and implementation of a new framework for adaptive mesh refinement calculations are described. It is intended primarily for applications in astrophysical fluid dynamics, but its flexible and modular design enables its use for a wide variety of physics. The framework works with both uniform and nonuniform grids in Cartesian and curvilinear coordinate systems. It adopts a dynamic execution model based on a simple design called a “task list” that improves parallel performance by overlapping communication and computation, simplifies the inclusion of a diverse range of physics, and even enables multiphysics models involving different physics in different regions of the calculation. We describe…

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Authors

4
  • JM
    James M. StoneCorresponding
  • KT
    Kengo Tomida
  • CJ
    Christopher J. White
  • KG
    Kyle G. Felker

Topics & keywords

Topics
Keywords
  • Curvilinear coordinates
  • Multiphysics
  • Modular design
  • Cartesian coordinate system
  • Adaptive mesh refinement
  • Code (set theory)
  • Magnetohydrodynamic drive
  • Polygon mesh
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