ModelCheckpointCallback.on_validation_end does not listen to val_check_interval?

[sshleifer]

Evidence: I have a unit test where I train for 2 epochs with val_check_interval=0.5 and I only get two model checkpoints. Set breakpoints and indeed it is only hit twice. Would expect 4 times.

[HansBambel]

In the ModelCheckpoint class is a parameter period that tells the callback after how many epochs a model is saved. Since this value is supposed to be an int I think it is only possible to save the model after whole epochs.

[sshleifer]

Is there any plan to change that or a way to make a checkpointing callback to run on_validation_end?

[williamFalcon]

yes, checkpoint and that API is being reworked atm #1989. Much simpler and much more expressive. that should be rolled out by saturday

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it hasn't had any recent activity. This issue will be closed in 7 days if no further activity occurs. Thank you for your contributions, Pytorch Lightning Team!