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Accelerating Gravitational $N$-Body Simulations Using the RISC-V-Based Tenstorrent Wormhole

Published: September 23, 2025 | arXiv ID: 2509.19294v1

By: Jenny Lynn Almerol , Elisabetta Boella , Mario Spera and more

Potential Business Impact:

Speeds up space simulations and saves energy.

Business Areas:
RISC Hardware

Although originally developed primarily for artificial intelligence workloads, RISC-V-based accelerators are also emerging as attractive platforms for high-performance scientific computing. In this work, we present our approach to accelerating an astrophysical $N$-body code on the RISC-V-based Wormhole n300 card developed by Tenstorrent. Our results show that this platform can be highly competitive for astrophysical simulations employing this class of algorithms, delivering more than a $2 \times$ speedup and approximately $2 \times$ energy savings compared to a highly optimized CPU implementation of the same code.

Country of Origin
🇮🇹 Italy

Page Count
7 pages

Category
Computer Science:
Distributed, Parallel, and Cluster Computing