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[Opal] OPALX paper now on arXiv — first version available

From: "Adelmann, Andreas" <andreas.adelmann AT psi.ch>
To: "opal-developers AT lists.psi.ch" <opal-developers AT lists.psi.ch>
Subject: [Opal] OPALX paper now on arXiv — first version available
Date: Tue, 3 Nov 2026 13:13:15 +0000
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Dear colleagues,

We are pleased to share the first version of our paper, “OPALX: A performance-portable framework for particle accelerator simulations,” now available on arXiv.

Building on OPAL, OPALX brings accelerator simulation to multicore CPUs and GPUs through a common code base built on IPPL and Kokkos. The paper describes the framework, its physical and numerical models, and initial verification of particle tracking, self-consistent space charge, and spin dynamics.

We present comparisons with G4Beamline and TraceWin, alongside CPU and GPU benchmarks. In the reported three-dimensional space-charge benchmark, a single NVIDIA A100 reaches approximately one billion macroparticles per second.

This is a first preprint, with further benchmarking planned before journal submission. We welcome your comments, questions, and suggestions.

Stay tuned for more to come!

OPALX: A performance-portable framework for particle accelerator simulations

arxiv.org

· Explore OPALX

Best regards,
Andy Adelmann, on behalf of the authors

------
Dr. sc. math. Andreas (Andy) Adelmann
Paul Scherrer Institut OHSA/D17 CH-5232 Villigen PSI
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[Opal] OPALX paper now on arXiv — first version available, Adelmann, Andreas, 11/03/2026