Atomic Weapons Establishment
In June 1999, 3 systems appeared in the TOP500 list.
| Rank | System | Procs | Memory(GB) | Rmax (GFlops) | Rpeak (GFlops) | Vendor |
|---|---|---|---|---|---|---|
| 62 | SP P2SC 160 MHz | 252 | N/A | 109.9 | 161.2 | IBM |
| 174 | SP PC604e 332 MHz | 140 | N/A | 44.27 | 92.96 | IBM |
| 342 | SP PC604e 332 MHz | 96 | N/A | 30.75 | 63.74 | IBM |