MRC Protocol: Supercomputer networking to accelerate large scale AI training

OpenAI has released the specifications of the Multipath Reliable Connection (MRC) protocol, and they are now publicly available as part of Open Compute Project (OCP) foundation.

MRC, which is already being used by OAI in production for training their models, aims to provide robust network utilization, allowing improved bandwidth while also efficiently handling network failures automatically at routing level.