Isambard-AI (Bristol)

Isambard-AI is a 200 PF Grace+Hopper system at Bristol.

Per Simon McIntosh-Smith¹:

• Cray EX2500 (Phase 1) and Cray EX4000 (Phase 2)
• 5,448 GH200 superchips (1,362 nodes)

Based on my scaling estimates of HPL for H100, this should be able to get 209.9 PFLOPS FP64.

Footnotes

1. “Fantastic progress for Isambard-AI in the past week…” (Linkedin) ↩