NCCL
NCCL ↔ Optical Correlation
Correlate low-bandwidth NCCL events with optical telemetry anomalies on the GPU-node's upstream port. For each low-bw event, fetches ±30s optical samples and flags whether rx_power/temperature/FEC were anomalous. Produces the 'NCCL drop ↔ optical root cause' evidence that closes the loop between GPU performance and the physical layer — Hikari's flagship IR story.
get/api/nccl/correlation
Request
- Base URL: https://api.fiber.ac (the document declares no server; this is the origin it was published from)
- URL: https://api.fiber.ac/api/nccl/correlation
- Auth: none declared
Query parameters
minutesinteger
low_bw_thresholdnumber
GB/s threshold below which event is considered slow (static mode)
modestring
static = fixed 50/5 GB/s; dynamic = per-(node,event_type) EMA - 2σ (Spectrum-X NetInspector style, W13)
Response
Correlations with per-event optical window and hit rate
unknown required
Changes
No recorded changes to this operation across all 1 revision of this API.