GitLab

* fix bug if all values<0
Signed-off-by: tongliu <tongliu@nvidia.com>

* minor fix
Signed-off-by: tongliu <tongliu@nvidia.com>

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

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



---------
Signed-off-by: tongliu <tongliu@nvidia.com>
Co-authored-by: tongliu <tongliu@nvidia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Xin Yao <xiny@nvidia.com>