EuroHPC SPACE CoE: Redesigning Scalable Parallel Astrophysical Codes for Exascale
Abstract
High Performance Computing (HPC) based simulations are crucial in Astrophysics and Cosmology (A&C), helping scientists investigate and understand complex astrophysical phenomena. Taking advantage of exascale computing capabilities is essential for these efforts. However, the unprecedented architectural complexity of exascale systems impacts legacy codes. The SPACE Centre of Excellence (CoE) aims to re-engineer key astrophysical codes to tackle new computational challenges by adopting innovative programming paradigms and software (SW) solutions. SPACE brings together scientists, code developers, HPC experts, hardware (HW) manufacturers, and SW developers. This collaboration enhances exascale A&C applications, promoting the use of exascale and post-exascale computing capabilities. Additionally, SPACE addresses high-performance data analysis for the massive data outputs from exascale simulations and modern observations, using machine learning (ML) and visualisation tools. The project facilitates application deployment across platforms by focusing on code repositories and data sharing, integrating European astrophysical communities around exascale computing with standardised SW and data protocols.
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Shukla, N., Romeo, A., Caravita, C., Riha, L., Vysocky, O., Strakos, P., Jaros, M., Barbosa, J., Vavrik, R., Mignone, A., Rossazza, M., Truzzi, S., Berta, V., Colonnelli, I., Medić, D., Boella, E., Gregori, D., Sciacca, E., Tornatore, L., Taffoni, G., Deka, P. J., Bacchini, F., Wilhelm, R., Doulis, G., Pierre, K., Rezzolla, L., Colman, T., Commerçon, B., Bouizi, O., Kuhn, M., Raffin, E., Sergent, M., Wissing, R., Marin, G., Dolag, K., Karademir, G. S., Perna, G., Zanotti, M., Trujillo-Gomez, S. (2025). EuroHPC SPACE CoE: Redesigning Scalable Parallel Astrophysical Codes for Exascale. arXiv preprint arXiv:2512.18883.
Nitin Shukla, Alessandro Romeo, Caterina Caravita, Lubomir Riha, Ondrej Vysocky, Petr Strakos, Milan Jaros, João Barbosa, Radim Vavrik, Andrea Mignone, Marco Rossazza, Stefano Truzzi, Vittoria Berta, Iacopo Colonnelli, Doriana Medić, Elisabetta Boella, Daniele Gregori, Eva Sciacca, Luca Tornatore, Giuliano Taffoni, Pranab J. Deka, Fabio Bacchini, Rostislav-Paul Wilhelm, Georgios Doulis, Khalil Pierre, Luciano Rezzolla, Tine Colman, Benoît Commerçon, Othman Bouizi, Matthieu Kuhn, Erwan Raffin, Marc Sergent, Robert Wissing, Guillermo Marin, Klaus Dolag, Geray S. Karademir, Gino Perna, Marisa Zanotti, and Sebastian Trujillo-Gomez. "EuroHPC SPACE CoE: Redesigning Scalable Parallel Astrophysical Codes for Exascale." arXiv preprint arXiv:2512.18883 (2025).