Preprint
Sep 2026
Flux: Optimal Scheduling of Optical Circuit Switches for LLM Training
Flux is presented, a scheduler that optimally schedules optical circuit switches based on the structure of the entire workload and reduces training iteration time and peak NIC buffer requirements by more than three orders of magnitude compared to traditional periodic schedulers.
Arno Troch, Seyyidahmed Lahmer, A. Nada et al.
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