The Definitive Guide toAI Data Centers
Ask the GuideAboutAccount
Guide › Numbers register › Claim

Meta Llama 3 405B pre-training: six interruptions attributed to silent data corruption in the reported 54-day campaign

6 SDC interruptions / 54-day campaignobserved

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
ScopeNamed campaign and recorded interruption category. Not a complete count of silent errors, a per-device defect probability or a portable recurrence interval; the fault/device statement in Meta’s July 2025 discussion has a separate measurement boundary.
As of2024-07
SourceMeta, The Llama 3 Herd of Models, July 2024 report, §3.3.4 and Table 5 (read in arXiv v3, 23 November 2024). · Table 5: Silent Data Corruption, GPU, 6 interruptions; 54-day Llama 3 405B pre-training period on 16,384 H100 GPUs.
Reviewchecking…review by 2027-03-08 · standard cadence
Recorded changesnone recorded
Claim idllama-3-405b-sdc-interruptions-54-day-campaign

Where the guide uses it

Not quoted in a chapter yet; it is kept in the curated register.

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