Preprint
Sep 2026
Co-Fabric: Breaking Host-Domain Boundaries for Unified xPU Interconnection
Large-model parameters have grown beyond the capacity of a single xPU, dispersing across multiple xPUs spanning distinct host domains, where xPU-to-xPU communication dominates overall system efficiency. Existing scale-up interconnect remains inadequate: network-based solutions built on Ethernet--such as RoCE (RDMA over...
Zhe-Zhe Peng, Jia-Ming Huang, Chao-Fan Chen et al.
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