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cs.NI2026
NVIDIA Spectrum-X: Hardware-Accelerated Multiplane Networking for Large-Scale AI Training
Sajy Khashab, Albert Gran Alcoz, Alon Gal +11
As distributed model training scales to span hundreds of thousands of GPUs, scale-out networks face unprecedented performance and efficiency demands. NVIDIA Spectrum-X Ethernet has…
cs.NI2026
Avoiding Cross-Datacenter Collective Congestion via Disaggregated Buffering
Mariano Scazzariello, Noga H. Rotman, Dima Gavrilenko +6
LLM training at the scale of tens of thousands of GPUs now spans multiple datacenters (DC), making cross-DC collectives over long-haul links unavoidable. A critical and overlooked…