GRAPE-4 is a special purpose computer for astrophysical simulations being developed in our lab. The peak speed exceeding 1 Tflops has been achieved. The figure shows four cluster units and the host computer. The host is a DEC Alpha AXP 3000/900.
August, 1993 Samples of two custom chips completed
October, 1994 Prototype system completed
Apr 15, 1995 1/30 of the machine (40 Gflops) became operational
May 1, 1995 One cluster (212 Gflops) became fully operational
July 28, 1995 Full system (1.08 Tflops ) press release
Dec 7, 1995 Won Gordon Bell Prize for Special-purpose machine
Press release text from IEEE.
Nov 21, 1996 Won Gordon Bell Prize for performance
IAU 174 Talk slides by M. Taiji
The Star Machine, by Gary Taubes, Discovery June 1997 issue
GRAPE-6 web page
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