* Add an additional attribute to ModelCheckpoint to keep track of the best model's path
Currently, only the best metric value is directly tracked. This new attribute will help in uses cases where the trained model needs to be used or tracked right after training.
* Add small description and usage example to docs
* Fix PEP8 issues
* Fix doctest example
* Fix expected output in doctest
* Apply suggestions from code review
* Show example as code block instead of doctest
* Apply suggestions from code review
* Update CHANGELOG.md
* Rename `ModelCheckpoint.best` to `ModelCheckpoint.best_model_score`
Also rename `ModelCheckpoint.best_model` (added in this PR) to `ModelCheckpoint.best_model_path`, for consistency, and `kth_best_model` to `kth_best_model_path`.
* Update pytorch_lightning/trainer/training_io.py
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
* Apply suggestions from code review
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
* Add warning when loading checkpoint from an old version
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
* Add flag to `dump_checkpoint` for only including weights
`ModelCheckpoint` then passes `self.save_weights_only` to the save function.
* Fix tests and add changelog entry
* Add check and descriptive message when training state is restored from a weights only checkpoint
Also add a test for making sure `ModelCheckpoint.save_weights_only` works as expected.
* Fix weights-only test to properly match expected exception
* Apply suggestions from code review
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
* feat: save checkpoint before deleting old ones
* fix: make sure that the new model is not deleted
* changelog
Co-authored-by: J. Borovec <jirka.borovec@seznam.cz>
Co-authored-by: William Falcon <waf2107@columbia.edu>
* improved docs for callbacks
* class references
* make doctest pass
* doctests
* fix lines too long
* fix line too long
* fix permission error in doctest
* Apply suggestions from code review
Co-Authored-By: Jirka Borovec <Borda@users.noreply.github.com>
* fix doctest
* fix default
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* enabled early stopping/checkpooiunt even without val step
* name formatting
* version
* testing
* add test
* fix test
* Update model_checkpoint.py
* doctests
* pylint
* tests
* debug
* debug
* enabled early stopping/checkpooiunt even without val step
* fix MNIST download (#1044)
* fix MNIST download
* simple
* name formatting
* version
* testing
* add test
* fix test
* doctests
* tests
* debug
* debug
* rebased 1041
* rebased 1041
* tests
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
* rebased 1041
Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>
* consolidate callbacks and hooks
* ensure callbacks recieve proper arg types
* remove model from init callback events
* clean up early stopping event
* update changelog
* remove on_fit_start and on_fit_end
* fix args for on_init_start and on_init_end
* handle case where early stopping is not used
* show all callback methods
* wrap checkpoint callback logic into proper class
* fix check for main process in checkpoint callback
* move callbacks test to separate file
* refactor arg checks
* get model and call hook on same line
* define trainer_options dict in one call
* add more asserts to callback test
* Add callback system + associated test
* Add trainer and pl_module args to callback methods
* typing
* typo in docstring
* Switch to on_.*_start()
* fix on_test_start
* fix the mess after rebasing
