GitLab

* retain_graph=True for grouped gemm
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* remove an unnecessary retain_graph=True
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* make retain_graph in graph capture configurable
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

* typo fix
Signed-off-by: Xiaowei Ren <xren@nvidia.com>

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Signed-off-by: Xiaowei Ren <xren@nvidia.com>