Categories
- W01xx — Environment. Something about the runtime is unexpected but the run can proceed.
- W02xx — Data. Dataset behaviour worth flagging (streaming, ordering).
- W03xx — Hooks. Probes did something with side effects.
- W04xx — Compilation. JIT / compile caches invalidated mid-run.
- W05xx — Performance. Slow paths that will not fail a run but are worth investigating.
- W06xx — Comparison. Numerical deltas that need interpretation.
Warning reference
| Code | Title | Emitted when |
|---|---|---|
| W0101 | Environment mismatch | You loaded an artifact recorded on a different framework version. |
| W0203 | Streaming dataset | The dataset in use is streaming; fingerprint identifies the generator, not the rows. |
| W0311 | Writable hook installed | A probe registered a writable hook; the run mutates the forward pass. |
| W0405 | Compile cache miss | torch.compile recompiled during recording; the environment fingerprint changed mid-run. |
| W0512 | Slow chunk | A single chunk took longer than 10× the median; likely a data-loader stall. |
| W0621, small delta | Small numeric delta | A comparison found deltas below 1e-5; may be BLAS non-determinism, may be real drift. |