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astro-ph.IM2026
Momentum-conserving self-gravity in the Phantom. Parallel dual tree traversal for the fast multipole method
Yann Bernard, Timothée David-Cléris, Daniel J. Price +1
Tree codes that approximate groups of distant particles with multipole expansions accelerate gravitational force calculations. While momentum-conserving fast multipole methods exis…
astro-ph.IM2025
The Shamrock code: I- Smoothed Particle Hydrodynamics on GPUs
Timothée David--Cléris, Guillaume Laibe, Yona Lapeyre
We present Shamrock, a performance portable framework developed in C++17 with the SYCL programming standard, tailored for numerical astrophysics on Exascale architectures. The core…