Introduction#

AMReX is a software framework designed to accelerate scientific discovery for applications solving partial differential equations on block-structured meshes. Its massively parallel adaptive mesh refinement (AMR) algorithms focus computational resources and allow scalable performance on heterogeneous architectures so that scientists can efficiently resolve details in large simulations.

Tutorials#

• [2404.02950] Sledgehamr: Simulating Scalar Fields with Adaptive Mesh Refinement
• AMReX: Building a Block-Structured AMR Application ǀ Ann Almgren and DonaldWillcox, LBNL - YouTube
• AMReX - YouTube
• Adaptive Mesh Refinement: Algorithms and Applications - YouTube ATPESC 2022 5.2a Structured Meshes with AMReX | Ann Almgren, Erik Palmer - YouTube
  • ATPESC 2022 5.2a Structured Meshes with AMReX | Ann Almgren, Erik Palmer - YouTube
    • Meshing and Discretization with AMReX
    • GitHub - xsdk-project/xsdk-examples: Example codes demonstrating the use of various XSDK packages in combination.
  • ATPESC 2022 5.2b Unstructured Meshes with MFEM/PUMI | A. Fisher, M. Shephard, C. Smith - YouTube
  • ATPESC 2022 5.3a Iterative Solvers & Algebraic Multigrid Trilinos/Belos/MueLu | C. Glusa, G. Harper - YouTube
  • ATPESC 2022 5.3b Direct Solvers with SuperLU STRUMPACK | Sherry Li, Pieter Ghysels - YouTube
  • ATPESC 2022 5.4a Nonlinear Solvers with PETSc | Richard Tran Mills - YouTube

Examples#

• MSABuschmann/sledgehamr: Sledgehamr is an AMReX-based code package to simulate the dynamics of coupled scalar fields on a 3-dimensional adaptive mesh.
• EinsteinToolkit/CarpetX: CarpetX is a Cactus driver for the Einstein Toolkit based on AMReX
• GitHub - AMReX-Astro/Castro: Castro (Compressible Astrophysics): An adaptive mesh, astrophysical compressible (radiation-, magneto-) hydrodynamics simulation code for massively parallel CPU and GPU architectures.
• GitHub - Exawind/amr-wind: AMReX-based structured wind solver
• GitHub - ECP-WarpX/WarpX: WarpX is an advanced, time-based electromagnetic & electrostatic Particle-In-Cell code.
• GitHub - GRTLCollaboration/GRTeclyn: Port of GRChombo to AMReX - under development!
• GitHub - AMReX-Astro/STvAR: Space-Time Variable Code Generator and Solver
  • [2301.08354] Code generation for AMReX with applications to numerical relativity
• [2210.17509] GRaM-X: A new GPU-accelerated dynamical spacetime GRMHD code for Exascale computing with the Einstein Toolkit