Session 13-4

SWIFT: A 2.1Tb/s 32 x 32 Self-Arbitrating Manycore Interconnect Fabric

 

Abstract

A 32 x 32 64b self-arbitrating switch fabric called SWIFT achieves a bandwidth of 2.1Tb/s with single cycle arbitration and data transfer latency in 65nm technology while operating at 1026MHz at 1.2V. SWIFT co-optimizes arbiter and crossbar logic using a unique fabric architecture that integrates conflict resolution with data routing to optimally use logic and interconnect resources. It spans 0.35mm2, achieves an efficiency of 7.39Tbps/W, and operates down to 530mV.