Some layers have no gradient when backward.

ucbdrive / hd3

Code for Hierarchical Discrete Distribution Decomposition for Match Density Estimation (CVPR 2019)

BSD 3-Clause "New" or "Revised" License

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Some layers have no gradient when backward. #29

Open chenglong0313 opened 4 years ago

chenglong0313 commented 4 years ago

when I use DLA34, it seems that some layers have no gradient when backward.

Specifically， they are ： module.encoder.base.level3.project.0.weight module.encoder.base.level3.project.1.weight module.encoder.base.level3.project.1.bias module.encoder.base.level4.project.0.weight module.encoder.base.level4.project.1.weight module.encoder.base.level4.project.1.bias

i don't why, though maybe it doesn't affect training.