Allow load_best_model_at_end to be configured for early stopping on custom evaluation datasets #1291
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Description
This change adds an additional clause when configuring the trainer to allow load_best_model_at_end to be set when using custom evaluation datasets (i.e. test_datasets is populated and val_set_size is to zero).
Motivation and Context
When using a custom test dataset for evaluation was unable to set early_stopping_patience as load_best_model_at_end was never set on the training configuration. This change allows the early stopping callback to be configured in the trainer successful.
How has this been tested?
I have been using this successfully for various training runs for models.