pytorch

cde597ef - [docs] Warn that GradScaler can scale under 1 (#101569)

[docs] Warn that GradScaler can scale under 1 (#101569) Completes action item 1 in https://github.com/pytorch/pytorch/issues/99640 Pull Request resolved: https://github.com/pytorch/pytorch/pull/101569 Approved by: https://github.com/ngimel