Software for Fusion Reactor Design: ExCALIBUR Project NEPTUNE: Towards Exascale Plasma Edge Simulations

E. J. Threlfall*, R. J. Akers, W. Arter, M. Barnes, M. Barton, C. Cantwell, P. Challenor, J. W. S. Cook, P. V. Coveney, T. Dodwell, Benjamin Daniel Dudson, P. E. Farrell, T. Goffrey, M. Green, S. Guillas, M. Hardman, Peter Alec Hill, L. Kimpton, Chris MacMackin, B. McMillanD. Moxey, Gihan R. Mudalige, John Tomotaro Omotani, J. T. Parker, F. Parra Diaz, O. Parry, T. Rees, Christopher Paul Ridgers, W. Saunders, S. J. Sherwin, S. Thorne, J. Williams, Steven A. Wright, Y. Yang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This article provides a broad overview of Project NEPTUNE, which aims to create code for simulating edge plasma physics at scales approaching the exascale, and is run by the UKAEA as part of the UK’s ExCALIBUR framework. It is a representative survey of scope and associated outputs, rather than a detailed exposition; the structure is such as to describe the core components of NEPTUNE (efforts toward simulation of plasma fluid and kinetic effects, and their synthesis into exascale-ready combined codes) and then give an indication of the wide range of other work performed under the project.
Original languageEnglish
Title of host publication29th IAEA Fusion Energy Conference, proceedings
Number of pages7
Publication statusPublished - 21 Oct 2023
Event29th IAEA Fusion Energy Conference - London, United Kingdom
Duration: 16 Oct 202321 Oct 2023


Conference29th IAEA Fusion Energy Conference
Abbreviated titleFEC 2023
Country/TerritoryUnited Kingdom
Internet address

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