HyperFabric Interconnect (HFI): A Unified, Scalable Communication Fabric for HPC, AI, Quantum, and Neuromorphic Workloads
Krishna Bajpai · 2025
The evolution of high-performance computing (HPC) interconnects has produced specialized fabrics such as InfiniBand [1], Intel Omni-Path, and NVIDIA NVLink [2], each optimized for distinct workloads. However, the increasing convergence of HPC, AI/ML, quantum, and neuromorphic computing requires a unified communication substrate capable of supporting diverse requirements including ultra-low latency, high bandwidth, collective operations, and adaptive routing. We present HyperFabric Interconnect (HFI), a novel design that combines the strengths of existing interconnects while addressing their scalability and workload-fragmentation limitations. Our evaluation on simulated clusters demonstrates HFI's ability to reduce job completion time (JCT) by up to 30%, improve tail latency consistency by 45%, and sustain efficient scaling across heterogeneous workloads. Beyond simulation, we provide an analytical model and deployment roadmap that highlight HFI's role as a converged interconnect for the exascale and postexascale era.