* [TPU] Doc, fix xla_spawn.py, only preprocess dataset once * Update examples/README.md * [xla_spawn] Add `_mp_fn` to other Trainer scripts * [TPU] Fix: eval dataloader was None
* wip * wip * a last wip * Better logging when using TPUs * Correct argument name * Tests * fix * Metrics in evaluation * Update src/transformers/training_args.py * [tpu] Use launcher script instead * [tpu] lots of tweaks * Fix formatting Co-authored-by: Julien Chaumond <chaumond@gmail.com>