AMReX Introduction

AMReX is a publicly available software framework designed for building massively parallel block-structured adaptive mesh refinement (AMR) applications.

Key features of AMReX include:

• C++ and Fortran interfaces

• 1-, 2- and 3-D support

• Support for cell-centered, face-centered, edge-centered, and nodal data

• Support for hyperbolic, parabolic, and elliptic solves on hierarchical adaptive grid structure

• Optional subcycling in time for time-dependent PDEs

• Support for particles

• Support for embedded boundary (cut cell) representations of complex geometries

• Parallelization via flat MPI, OpenMP, hybrid MPI/OpenMP, hybrid MPI/(CUDA or HIP or SYCL), or MPI/MPI

• Parallel I/O

• Plotfile format supported by AmrVis, VisIt, ParaView, and yt.

AMReX is developed at LBNL.