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Open access
Aug 2026
Dragonfly-Ultra: A Scalable, Low-Cost Network Architecture for High-Performance AI Clusters
Dragonfly-Ultra is presented, a scalable, low-cost network architecture for high-performance AI clusters that can scale to over 260k GPUs with only 82% cost and 81% power consumption of a 3-layer Clos architecture and incorporates three key mechanisms to further improve network performance and optimize collective communication.
Rui Zhuang, Hui Yuan, Junye Zhang et al.
· Proceedings of the ACM SIGCO... · 0 citations