Checks / pattern
ConvTranspose checkerboard risk
Check R28. Runs in the editor as you build, in CI through the
GitHub Action, and over the wire at
POST /api/v1/check. Milliseconds, before any GPU is billed.
info
pattern
R28
| Trigger | A ConvTranspose2d has kernelSize not divisible by stride (with stride > 1). |
|---|---|
| Why | Uneven kernel overlap during upsampling deposits more weight on some output pixels than others, producing checkerboard artifacts. Make kernelSize a multiple of stride, or upsample with Upsample + Conv (resize-convolution). |
| Source | Odena et al. 2016, Deconvolution and Checkerboard Artifacts. |
Why it is not a lint you can ignore
A structural mistake does not fail at review time and it does not fail at import
time. It fails when the module is constructed on the training node, after the job was queued and
the dataset was downloaded. That is why this runs before the spend and not after it.
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Every check
41 structural checks: 6 guardrail gates and 35 architecture advisor rules. See the full catalogue.
← R27 Flatten before attention ยท R29 GroupNorm channels not divisible by numGroups →