1999/05/09 by Atsushi Kawai, Kawai, Atsushi, Toshiyuki Fukushige +3 · 1 citation
Computer Science · Physics and Astronomy · #Astrophysics (astro-ph) #Computational Physics and Python Applications #FOS: Physical sciences #Parallel Computing and Optimization Techniques #Scientific Research and Discoveries #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9905101
7 pages, 4 figures, 1999 Gordon Bell Prize Winner (price/performance category) Performance figures are improved. Two photographs are added
openalex publication_date 1999/05/09 · arxiv created 1999/11/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
As 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.