Early Stopping on val metrics bugs
Hi
I can't use early stopping on monitor='val_loss' or 'val_acc' with gpu_template.py and lightning_module_template.py example code.
I got
Early stopping conditioned on metric val_loss which is not available. Available metrics are: loss <class 'RuntimeWarning'>
I've try to add val_loss in the ouput of validation_end but it doesn't change anythings.
i look at the code and i  print self.callback_metrics i only have {'loss': 2.8375635147094727}
In trainer.py i see that the early stopping callback is call  in the training loop and not in the validation loop
So if  i got the val_loss key after validation_end in  self.callback_metrics but it's erased when the training loop restart...
Thanks for your work