transformers

df475bf8 - Trainer - add cache clearing and the option for batched eval metrics computation (#28769)

Trainer - add cache clearing and the option for batched eval metrics computation (#28769) * Added cache clearing for GPU efficiency. * Added cache clearing for GPU efficiency. * Added batch_eval_metrics capability * Ran make fixup * Fixed bug * Fixed whitespace issue * Fixed outdated condition * Updated docstrings with instructions for batch_eval_metrics. Updated end of dataloader logic * Added first version of batch_eval_metrics Trainer test * Fixed batch_eval_metrics Trainer tests for both eval and predict * Fixed batch_eval_metrics behavior for new Trainer variables * Fixed batch_eval_metrics Trainer tests * Ran fixup