Astrophysical N-body simulations: algorithms and challenges
Abstract
The subjects and key questions faced by computational astrophysics using N-body simulations are discussed in the fields of globular star cluster dynamics, galactic nuclei and cosmological structure formation. After a comparison of the relevance of different N-body algorithms a new concept for a more flexible customized special purpose computer based on a combination of GRAPE and FPGA is proposed. It is an ideal machine for all kinds of N-body simulations using neighbour schemes, as the Ahmad-Cohen direct N-body codes and smoothed particle hydrodynamics for systems including gas.
Cite
@article{arxiv.astro-ph/9711238,
title = {Astrophysical N-body simulations: algorithms and challenges},
author = {Rainer Spurzem},
journal= {arXiv preprint arXiv:astro-ph/9711238},
year = {2007}
}
Comments
10 pages, 1 figure, postscript, to appear in T. Ebisuzaki, ed, Proc. Int. Symp. on Supercomputing - New Horizon of Computational Science, Tokyo, Japan, 1-3 September, 1997. Kluwer, Dordrecht