OpenAI Introduces MRC (Multipath Reliable Connection): A New Open Networking Protocol for Large-Scale AI Supercomputer Training Clusters

OpenAI has released MRC, a new networking protocol designed to address the growing issue of network congestion in large-scale AI supercomputers. By spreading data packets across multiple paths and enabling microsecond-level failure recovery, MRC ensures more reliable and efficient training for models like ChatGPT, significantly reducing GPU idle time and operational costs. This innovation is already deployed in production environments, marking a critical advancement for scalable AI infrastructure.

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