Training/Validation split in minimal example
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I think it's unclear how the training data is split into a training and validation split in the minimal example.
(https://williamfalcon.github.io/pytorch-lightning/LightningModule/RequiredTrainerInterface/#minimal-example)
Does this example use all training data for both training and validation? As far as I'm aware, this is bad practice.
Is there some magic background process which compares the training and validation data loaders and does splitting? I skimmed through the code and couldn't find anything.