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* Support compilation via Torchdynamo, AOT Autograd, NVFuser

* Address comments

* Lint

* Stas comments - missing quality test

* Lintere

* Quality test

* Doc lint

* Reset CUDA peak mem

* Add CustomTrainer

* require a single gpu
Co-authored-by: Stas Bekman <stas@stason.org>

* [tests] fix copy-n-paste error

* fix

Co-authored-by: ydshieh <ydshieh@users.noreply.github.com>

* Ensure tensors are at least 1d for pad and concat

* Compatibility

* Fix

* Fix

* Add test

* Retrigger CI

* Consistency with master

* Retrigger CI

* Remove unneeded columns for IterableDataset

* Add test

* Update trainer tests

* Edit docstring

* Lint

* Apply feedback

* Apply feedback

Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

- Adds auto_batch_size finder 
- Moves training loop to an inner training loop

* Fix RNG reload in resume training from epoch checkpoint

* Fix test

* Make Trainer compatible with sharded checkpoints

* Add doc

* Add initial BNB integration

* fixup! Add initial BNB integration

* Add bnb test decorator

* Update Adamw8bit option name

* Use the full bnb package name

* Overide bnb for all embedding layers

* Fix package name

* Formatting

* Remove unnecessary import

* Update src/transformers/trainer.py
Co-authored-by: Stas Bekman <stas00@users.noreply.github.com>

* Rename AdamwBNB optimizer option

* Add training test checking that bnb memory utilization is lower

* fix merge

* fix merge; fix + extend new test

* cleanup

* expand bnb

* move all require_* candidates to testing_utils.py
Co-authored-by: Stas Bekman <stas00@users.noreply.github.com>
Co-authored-by: Stas Bekman <stas@stason.org>

* Fix issue avoid-misusing-assert-true found at https://codereview.doctor



* fix tests

* fix tf
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

* Avoid accessing .dataset of a dataloader

* style

* fix

* cleaning up, reverting some misunderstandings

* black

* add train_dataset argument to get_train_dataloader, and fix other instances of length checks

* flake8

* address comments

* fix bug

* cleanup

* add test

* Update tests/trainer/test_trainer.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* under torch

* merge

* stylistic suggestion
Co-authored-by: Sander Land <sander@chatdesk.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Split file_utils in several submodules

* Fixes

* Add back more objects

* More fixes

* Who exactly decided to import that from there?

* Second suggestion to code with code review

* Revert wront move

* Fix imports

* Adapt all imports

* Adapt all imports everywhere

* Revert this import, will fix in a separate commit

* Seed get_train_sampler's generator with arg seed to improve reproducibility

and make the world_size<=1 code path more similar to the others

* move test file into trainer test explicitly

* dumb typo

* make style lint happy

* per discussion, switch to data_seed

* Apply suggestions from code review
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* Per-folder tests reorganization
Co-authored-by: sgugger <sylvain.gugger@gmail.com>
Co-authored-by: Stas Bekman <stas@stason.org>