A Fast Parallel Treecode with GRAPE

Details A Fast Parallel Treecode with GRAPE A Fast Parallel Treecode with GRAPE

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004pasj...56..521m&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.56, No.3, pp. 521-531

Astronomy and Astrophysics

Astronomy

20

Celestial Mechanics, Methods: N-Body Simulations

Scientific paper

In this paper, we describe an implementation of the Barnes-Hut treecode on a cluster of PCs (Beowulf-class machines) equipped with GRAPE hardware. Our implementation is designed to achieve good performance on clusters of GRAPE with a relatively slow network, such as the standard Gigabit Ethernet. With 12 processors, the speedup over single-processor code reaches around 10. Our code is available on the web.

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