High performance massively parallel direct N-body simulations on large GPU clusters
National Astronomical Observatories of China, CAS, Beijing, China
HPC-UA’2011
@article{berczik2011high,
title={High performance massively parallel direct N-body simulations on large GPU clusters},
author={Berczik, P. and Nitadori, K. and Zhong, S. and Spurzem, R. and Hamada, T. and Wang, X. and Berentzen, I. and Veles, A. and Ge, W.},
year={2011}
}
We present direct astrophysical N-body simulations with up to six million bodies using our parallel MPI/CUDA code on large GPU clusters in China, with different kinds of GPU hardware. These clusters are directly linked under the Chinese Academy of Sciences special GPU cluster program. We reach about one third of the peak GPU performance for this code, in a real application scenario with individual hierarchically block time-steps high (4th, 6th and 8th) order Hermite integration schemes and a real core-halo density structure of the modeled stellar systems.
November 8, 2011 by hgpu
