ICI is interchip interconnect in TPUv4 pods. You can read more on paper that my collegues in Google platforms recently published https://arxiv.org/abs/2304.014

ICI is interchip interconnect in TPUv4 pods. You can read more on paper that my collegues in Google platforms recently published https://arxiv.org/abs/2304.01433 https://arxiv.org/abs/2304.01433 https://cloud.google.com/blog/topics/systems/tpu-v4-enables-performance-energy-and-co2e-efficiency-gains https://cloud.google.com/blog/topics/systems/tpu-v4-enables-... I am so happy this paper is finally out :-) I led the SRE work during their NPI. It's a pain when you have to wait 3 years to discuss what you worked on. They are based on OCS, which powers Google datacenter networks https://arxiv.org/abs/2208.10041 https://arxiv.org/abs/2208.10041