Avoid Routing Polarization for OCS-based GPU Clusters
Published in Journal of Optical Communications and Networking, 2026
This work develops a leaf-centric logical topology design for optical circuit switch (OCS)-based GPU clusters. The design balances traffic across spine switches to mitigate routing polarization and improve machine-learning training throughput.
Authors: Xinchi Han; Weihao Jiang; Yingming Mao; Yike Liu; Zhuoran Liu; Yongxi Lv; Peirui Cao; Zhuotao Liu; Ximeng Liu; Xinbing Wang; Changbo Wu; Zihan Zhu; Dongchao Wu; Jian Yang; Zhanbang Zhang; Yuansen Chen; Shizhen Zhao.