in-domain all-reduce busbw on GB200 NVL72 (~saturates the 900 GB/s/GPU NVLink5 unidirectional rate; NVLS lets ring-convention busbw read slightly above it); scale-out gate derived independently from NICs, rails, topology, protocol efficiency, message size, and collective model

Name: in-domain all-reduce busbw on GB200 NVL72 (~saturates the 900 GB/s/GPU NVLink5 unidirectional rate; NVLS lets ring-convention busbw read slightly above it); scale-out gate derived independently from…
License: https://aidatacenterguide.com/terms#intellectual-property

870-928 GB/sobserved

Value kind	observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
As of	2025
Source	Crusoe Cloud performance-validation guide
Review	checking…review by 2026-08-27 · fast cadence
Recorded changes	last 2026-08-24 · 2 revisions tracked
Claim id	in-domain-all-reduce-busbw-on-gb200-nvl72

Where the guide uses it

13.9 Cluster-Scale Benchmarking, Reference Training & Storage/Scheduler Validation

← Full numbers register — every date-stamped figure in the guide, with revision history.