Meta observed failure-rate change for jobs using at least 512 GPUs following its lemon-node mitigation
14% → 4%observed
| 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. |
|---|---|
| Scope | Named RSC deployment and event definition; a useful external comparison, not a required calibration target for other fleets. |
| Caveat | Observed on Meta's RSC clusters; compare only with matching event and exposure definitions. |
| As of | 2024-10 |
| Source | Meta paper. · Section IV-A, Identifying and Repairing Lemon Nodes (arXiv v1 2024-10-29 and v2 2025-02-06; text identical) |
| Review | checking…review by 2027-10-16 · fast cadence |
| Recorded changes | last 2026-10-16 · 3 revisions tracked |
| Claim id | 512-gpu-job-failure-rate-after-lemon-node |
Where the guide uses it
- 12.5 Quantitative Reliability & Availability Modeling (RBD / FTA / Monte-Carlo)
- 14.4 Reliability Engineering for Training (Operational)
← Full numbers register — every date-stamped figure in the guide, with revision history.