GitLab

* add grad reduce api for cuda graph hook
Signed-off-by: Pingtian Li <pingtianl@nvidia.com>

* fix code consistency
Signed-off-by: Pingtian Li <pingtianl@nvidia.com>

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Signed-off-by: Pingtian Li <pingtianl@nvidia.com>
Co-authored-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>