How to validate the Controlnet?

[jiajiao272727]

Hi, I'm a code beginner. I've learned how to train a model, and I'd like to learn how to validate it and get a dynamic validation loss.

I tried adding check_val_every_n_epoch=1 inside trainer = pl.Trainer() in tutorial_train_sd21.py, but the output is still only the training loss.

Do I need to modify the file that creates the loss function to distinguish between the train_step and validation_step fields? How can I do this? Thank you very much!