Computer_System Date_Rcvd Number_PEs Time(Sec) Ratio_YMP/1 24 9> 10N 9N 11N Cray C90 Dec 93 1 8.15 2.7 Cray C90 Dec 93 4 2.19 10.1 Cray T3D Feb 94 64 3.03 7.3 Cray T3D Feb 94 128 1.56 14.2 Cray T3D Feb 94 256 0.86 25.8 Fujitsu VPP500 Feb 94 4 1.78 12.5 Fujitsu VPP500 Feb 94 8 1.13 19.7 Fujitsu VPP500 Feb 94 16 0.79 28.1 IBM RS/6000-590 Feb 94 1 54.09 0.4 IBM SP-1 Feb 94 8 34.83 0.6 IBM SP-1 Feb 94 16 22.30 1.0 IBM SP-1 Feb 94 32 15.04 1.5 IBM SP-1 Feb 94 64 9.25 2.4 Intel Paragon (OSF1.1) Nov 93 64 10.35 2.1 Intel Paragon (OSF1.1) Nov 93 128 5.79 3.8 Intel Paragon (OSF1.1) Nov 93 256 4.19 5.3 Intel Paragon (SunMos) Feb 94 64 9.76 2.3 Intel Paragon (SunMos) Feb 94 128 5.10 4.4 Intel Paragon (SunMos) Feb 94 256 3.48 6.4 Kendall Square KSR1 Feb 94 32 19.7 1.1 Kendall Square KSR1 Feb 94 64 10.3 2.2 Kendall Square KSR1 Feb 94 128 5.6 4.0 Kendall Square KSR2 Feb 94 32 10.3 2.2 Kyoto/Matsushita ADENART Feb 94 256 21.4 1.0 Thinking Machines CM-5E Feb 94 32 3.9 5.7 Thinking Machines CM-5E Feb 94 64 2.25 9.9 Thinking Machines CM-5E Feb 94 128 1.34 16.6 IBM Cluster Jan 94 9 24.2 0.9 .