Packet-level simulator (ns-3 + RoCEv2/DCQCN/PFC/ECN) comparing fat-tree vs rail-optimized topologies for AI training fabrics. Validated against NCCL on real GPUs.
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Updated
Jul 31, 2026 - Python
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dcqcn
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RoCEv2 control plane simulator — DCQCN congestion control on fat-tree GPU clusters with NCCL Ring AllReduce workloads
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Updated
May 1, 2026 - Python
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