protocols · nvidia

NCCL

NVIDIA Collective Communications Library. All-reduce / all-gather primitives that underpin multi-GPU training.

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What this registry has checked

Quarantine. We hold the publisher’s own published hash for these weights and have recorded it against this entry. We have not downloaded and hashed the weights ourselves, so the hash is the publisher’s claim, not our measurement.

Weight file SHA-256	04ef1bbafc04c40283d4fe3598ae4b0de460d6b979b6fabf12817d55d6d97739

Re-check this yourself → Source → Full record →

What is recorded

Publisher	nvidia
Origin	United States
Licence	BSD-3
Pulls recorded here	196,003

Elsewhere in the registry

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Registry record as of 2026-06-06. Identity, licence and parameter count are properties of a release and do not move; tier can, and the verify link above re-checks it against the live registry rather than this page.