Block-structured adaptive mesh refinement

Scalable software infrastructure for scientific applications.

AMReX is a performance-portable framework for building massively parallel adaptive mesh refinement applications across CPUs, GPUs, and advanced HPC systems. AMReX is an open source project of the High Performance Software Foundation (HPSF) under the Linux Foundation. AMReX is available under a BSD-3-Clause license.

Featured science

A few examples from the AMReX gallery show the range of applications built on block-structured adaptive mesh refinement.

Reactive shock-bubble interaction simulation

Reactive flows

Reactive Shock-Bubble Interaction

GPU-accelerated adaptive mesh refinement for high-fidelity compressible reactive flow modeling.

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Three-dimensional thunderstorm simulation

Atmospheric modeling

Thunderstorm in ERF

Three-dimensional atmospheric simulation with cloud and rain water structures on adaptive meshes.

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Millimeter-wave laser drilling simulation

Geoscience

Millimeter-wave Laser Drilling

Multiphysics simulation of melt and vapor dynamics during high-energy rock ablation.

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Plasma accelerator hose instability simulation

Accelerator physics

Hose Instability in a Plasma Accelerator

Particle-in-cell modeling for plasma accelerator physics and beam dynamics.

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Laser wakefield acceleration simulation

Plasma physics

Laser Wakefield Acceleration

WarpX simulations use AMReX for scalable electromagnetic and electrostatic particle-in-cell modeling.

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Hybrid simulation of fungal mycelium growth

Biological systems

Hybrid Simulation of Fungal Mycelium Growth

Continuum transport and particle interactions coupled in an adaptive simulation framework.

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Framework capabilities

What AMReX provides

Adaptive mesh refinement

Block-structured AMR concentrates resolution where simulations need it most.

Performance portability

Applications run across MPI, OpenMP, CUDA, HIP, SYCL, and hybrid execution models.

Particles and complex boundaries

Particle data structures and embedded boundaries support complex multiphysics workflows.

Solvers and workflows

AMReX includes capabilities for linear solvers, FFT, I/O, profiling, visualization, and application development.