RUMD is a general purpose, high-performance molecular dynamics (MD) simulation package running on graphical processing units (GPU’s). RUMD addresses the challenge of utilizing the many-core nature of modern GPU hardware when simulating small to medium system sizes (roughly from a few thousand up to hundred thousand particles). It has a performance that is comparable to other GPU-MD codes at large system sizes and substantially better at smaller sizes. RUMD is open-source and consists of a library written in C++ and the CUDA extension to C, an easy-to-use Python interface, and a set of tools for set-up and post-simulation data analysis. The paper describes RUMD’s main features, optimizations and performance benchmarks.
Bailey, N., Ingebrigtsen, T., Hansen, J. S., Veldhorst, A., Bøhling, L., Lemarchand, C., … Schrøder, T. (2017). RUMD: A general purpose molecular dynamics package optimized to utilize GPU hardware down to a few thousand particles. SciPost Physics, 3(6). https://doi.org/10.21468/scipostphys.3.6.038