Bonsai-SPH: A GPU accelerated astrophysical Smoothed Particle Hydrodynamics code

SciPost Astronomy, vol. 1

Abstract

We present the smoothed-particle hydrodynamics simulation code, Bonsai-SPH, which is a continuation of our previously developed gravity-only hierarchical N N -body code (called Bonsai). The code is optimized for Graphics Processing Unit (GPU) accelerators which enables researchers to take advantage of these powerful computational resources. Bonsai-SPH produces simulation results comparable with state-of-the-art, CPU based, codes, but using an order of magnitude less computation time. The code is freely available online and the details are described in this work.

Authors 2

1. Jeroen Bédorf Aachen

   Leiden University

   Affiliation as printed

   Leiden University

   Minds.ai

2. Simon Portegies Zwart Aachen

   Leiden University

   Affiliation as printed

   Leiden University