Axom

Axom is an open-source software library developed by Lawrence Livermore National Laboratory (LLNL) for high-performance computing. It provides a collection of data management and analysis tools designed to support the workflows of scientific computing, including simulation data pipelines, mesh handling, and in situ analysis. The project aims to help researchers organize and process large-scale data produced by computational simulations.

Core goals of Axom include performance portability across architectures, modularity, and interoperability with existing HPC ecosystems. It offers data structures and utilities for managing large-scale arrays and mesh- and geometry-related data, along with lightweight I/O abstractions to enable efficient reading and writing of simulation data. The library is designed to integrate with common HPC toolchains and programming models to enable scalable execution on multi-core CPUs and clusters.

The design of Axom emphasizes clean interfaces, test coverage, and ease of integration with other software used in HPC environments. It is oriented toward researchers and engineers who need reliable data infrastructure to accompany computational kernels and visualization tools, facilitating data workflows from simulation through analysis.

Axom originated within LLNL as part of the institute’s effort to provide reusable software building blocks for high-performance computing. Since its opening to the broader community as an open-source project, it has been used in academic and industrial research to streamline data workflows and support scalable data analysis.

Access to the project is through public repositories and documentation that describe installation, usage, and contributed modules. The library continues to evolve through community involvement and LLNL’s ongoing development.