Bonsai: A GPU Tree-Code
Instrumentation and Methods for Astrophysics
2012-04-12 v1 Distributed, Parallel, and Cluster Computing
Abstract
We present a gravitational hierarchical N-body code that is designed to run efficiently on Graphics Processing Units (GPUs). All parts of the algorithm are executed on the GPU which eliminates the need for data transfer between the Central Processing Unit (CPU) and the GPU. Our tests indicate that the gravitational tree-code outperforms tuned CPU code for all parts of the algorithm and show an overall performance improvement of more than a factor 20, resulting in a processing rate of more than 2.8 million particles per second.
Keywords
Cite
@article{arxiv.1204.2280,
title = {Bonsai: A GPU Tree-Code},
author = {Jeroen Bédorf and Evghenii Gaburov and Simon Portegies Zwart},
journal= {arXiv preprint arXiv:1204.2280},
year = {2012}
}
Comments
5 pages, 2 figures. Proceedings of "Advances in Computational Astrophysics: methods, tools and outcomes", June 13-17, 2011, Cefalu, Sicily, Italy, eds. Capuzzo Dolcetta, Limongi, Tornambe and Giobbi