GitLab

* Update usage of weightmat before saving for backward
Signed-off-by: Guyue Huang <guyueh@nvidia.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci



* Fix for layernorm mlp
Signed-off-by: Guyue Huang <guyueh@nvidia.com>

---------
Signed-off-by: Guyue Huang <guyueh@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>