Japan
In June 2002, 53 systems appeared in the TOP500 list.
| Rank | System | Procs | Memory(GB) | Rmax (GFlops) | Rpeak (GFlops) | Vendor |
|---|---|---|---|---|---|---|
| 1 | Earth-Simulator | 5120 | N/A | 35860 | 40960 | NEC |
| 13 | SR8000/MPP | 1152 | N/A | 1709.1 | 2074 | Hitachi |
| 19 | SX-5/128M8 3.2ns | 128 | N/A | 1192 | 1280 | NEC |
| 25 | SX-6/128M16 | 128 | N/A | 982 | 1024 | NEC |
| 27 | SR8000-F1/100 | 100 | N/A | 917 | 1200 | Hitachi |
| 30 | SR8000/128 | 128 | N/A | 873 | 1024 | Hitachi |
| 41 | SR8000-G1/64 | 64 | N/A | 790.7 | 921.6 | Hitachi |
| 45 | VPP5000/80 | 80 | N/A | 730 | 768 | Fujitsu |
| 47 | Presto III Athlon 1.6 GHz | 480 | N/A | 716.1 | 1536 | Self-made |
| 51 | SR8000-E1/80 | 80 | N/A | 691.3 | 768 | Hitachi |
| 56 | Magi Cluster PIII 933 MHz | 1040 | N/A | 654 | 970 | NEC |
| 57 | SCore IIIe/PIII 933 MHz | 1024 | N/A | 618.3 | 955.4 | Self-made |
| 62 | SR8000-F1/60 | 60 | N/A | 577 | 720 | Hitachi |
| 65 | VPP5000/64 | 64 | N/A | 563 | 614.4 | Fujitsu |
| 66 | VPP5000/64 | 64 | N/A | 563 | 614.4 | Fujitsu |
| 88 | SX-6/64M8 | 64 | N/A | 495.2 | 512 | NEC |
| 89 | SX-6/64M8 | 64 | N/A | 495.2 | 512 | NEC |
| 91 | VPP5000/56 | 56 | N/A | 492 | 537.6 | Fujitsu |
| 92 | VPP800/63 | 63 | N/A | 482 | 504 | Fujitsu |
| 99 | SR8000/64 | 64 | N/A | 449 | 512 | Hitachi |
| 121 | ORIGIN 3000 500 MHz | 512 | N/A | 405.6 | 512 | SGI |
| 122 | ORIGIN 3000 500 MHz | 512 | N/A | 405.6 | 512 | SGI |
| 125 | CP-PACS/2048 | 2048 | N/A | 368.2 | 614.4 | Hitachi/Tsukuba |
| 133 | AlphaServer SC40, 833 MHz | 256 | N/A | 344.1 | 426.5 | HP |
| 146 | VPP700/160E | 160 | N/A | 319 | 384 | Fujitsu |
| 155 | SX-6/40M5 | 40 | N/A | 311.7 | 320 | NEC |
| 160 | ORIGIN 3000 500 MHz | 384 | N/A | 306.3 | 384 | SGI |
| 167 | VPP5000/32 | 32 | N/A | 296.1 | 307.2 | Fujitsu |
| 178 | VPP5000/30 | 30 | N/A | 277 | 288 | Fujitsu |
| 187 | SR8000/36 | 36 | N/A | 255 | 288 | Hitachi |
| 219 | SX-4/128H4 | 128 | N/A | 244 | 256 | NEC |
| 223 | ORIGIN 2000 300 MHz | 640 | N/A | 241.4 | 384 | SGI |
| 227 | SX-5/32H2 | 32 | N/A | 241.4 | 256 | NEC |
| 240 | Numerical Wind Tunnel | 167 | N/A | 229 | 281.26 | Fujitsu |
| 241 | SR8000/32 | 32 | N/A | 229 | 256 | Hitachi |
| 258 | ORIGIN 3000 500 MHz | 256 | N/A | 210.2 | 256 | SGI |
| 259 | ORIGIN 3000 500 MHz | 256 | N/A | 210.2 | 256 | SGI |
| 262 | SR8000-F1/20 | 20 | N/A | 206 | 240 | Hitachi |
| 265 | SR8000-G1/16 | 16 | N/A | 199.1 | 230.4 | Hitachi |
| 277 | Fire 15K | 144 | N/A | 197.3 | 259.2 | Sun |
| 365 | SX-5/24M2 | 24 | N/A | 183 | 192 | NEC |
| 411 | Pentium 4 Cluster 2.0/1.7 GHz - Giganet | 98 | N/A | 160.4 | 388 | Self-made |
| 422 | ORIGIN 2000 400 MHz | 256 | N/A | 152.2 | 204.8 | SGI |
| 423 | ORIGIN 2000 400 MHz | 256 | N/A | 152.2 | 204.8 | SGI |
| 425 | SR8000-G1/12 | 12 | N/A | 150.1 | 172.8 | Hitachi |
| 426 | SP Power3 200 MHz | 256 | N/A | 149.3 | 204.8 | IBM |
| 427 | Sun Blade 1000 750MHz Cluster | 196 | N/A | 149.2 | 294 | Self-made |
| 437 | SuperDome/HyperPlex | 96 | N/A | 148.8 | 211.2 | HP |
| 438 | SuperDome/HyperPlex | 96 | N/A | 148.8 | 211.2 | HP |
| 454 | SuperDome/HyperPlex | 96 | N/A | 147.1 | 211.2 | HP |
| 462 | SP Power3 375 MHz | 142 | N/A | 146 | 213 | IBM |
| 466 | SR8000/20 | 20 | N/A | 144 | 160 | Hitachi |
| 474 | SP Power3 375 MHz 16 way | 128 | N/A | 138 | 192 | IBM |