Astronomisches Rechen-Institut Heidelberg

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Paper 2001041

Author(s): Spurzem, R.
Title: Astrophysical N-body simulations: algorithms and challenges
Source: In: Ebizusaki, T., Makino, J. (eds.): New horizons of computational science. Proc. Symp., Tokyo, 1-3 September 1997; Kluwer Academic Publ., Dodrecht, 49-58
ISBN: 0-7923-7050-3
Year: 2001
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.
Preprint issued:
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