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UserWarning: Detected call of `lr_scheduler.step()` before `optimizer.step()`. #96

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ZJU-lishuang opened this issue Dec 28, 2020 · 0 comments

ZJU-lishuang commented Dec 28, 2020 •

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UserWarning: Detected call of `lr_scheduler.step()` before `optimizer.step()`. 
In PyTorch 1.1.0 and later, 
you should call them in the opposite order: `optimizer.step()` before `lr_scheduler.step()`. 
Failure to do this will result in PyTorch skipping the first value of the learning rate schedule. 
See more details at https://pytorch.org/docs/stable/optim.html#how-to-adjust-learning-rate

Is this warning OK?

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