Bridge reduces All-to-All completion time by typically 3x to 10x and improves AllReduce by up to 6.6x over Ring by reusing optical subrings across multiple steps in reconfigurable networks.
Mars: Near-optimal throughput with shallow buffers in reconfigurable datacenter networks.Proc
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Demand-aware topologies achieve at least 5/8 asymptotic throughput in the worst case, separating from the demand-oblivious bound of n/(2n-1) ≈ 1/2; computing optimal weak throughput is NP-hard while direct throughput is polynomial-time solvable.
A greedy max-weight decomposition strategy for MoE all-to-all communication on photonic fabrics improves overlap efficiency and reduces compute overheads compared to BvN by bounding the number of matchings.
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A Separation Between Optimal Demand-Oblivious and Demand-Aware Network Throughput
Demand-aware topologies achieve at least 5/8 asymptotic throughput in the worst case, separating from the demand-oblivious bound of n/(2n-1) ≈ 1/2; computing optimal weak throughput is NP-hard while direct throughput is polynomial-time solvable.