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an entry for the 1999 Gordon Bell price/performance prize, we report an astrophysical N-body simulation performed with a treecode on GRAPE-5 (Gravity Pipe 5) system, a special-purpose computer for astrophysical N-body simulations. The GRAPE-5 system has 32 pipeline processors specialized for the gravitational force calculation. Other operations, such as tree construction, tree traverse and time integration, are performed on a general purpose workstation. The total cost for the GRAPE-5 system is 40,900 dollars. We performed a cosmological N-body simulation with 2.1 million particles, which sustained a performance of 5.92 Gflops averaged over 8.37 hours. The price per performance obtained is 7.0 dollars per Mflops.
Comment: 7 pages, 4 figures, 1999 Gordon Bell Prize Winner (price/performance category) Performance figures are improved. Two photographs are added
The different versions of the original document can be found in:
Published on 01/01/1999
Volume 1999, 1999
DOI: 10.1145/331532.331598
Licence: CC BY-NC-SA license
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