Cluster-level reliability for trillion-parameter models on TPUs

Google has developed a cluster-level reliability framework for its Tensor Processing Unit (TPU) clusters, which is necessary for large-scale AI workloads. This framework focuses on collective performance at the superpod level and is used internally within Google. It's the operational standard for TPUs in production today and serves as the blueprint for Google's eighth-generation TPUs. The framework helps define how the industry can achieve reliability in the AI era. It's a probabilistic approach over thousands of chips, rather than a deterministic one.