Install cuda support on EMMC version module

There is no cuda exist after flash emmc module from official rootfs.
So, how should We install it manually?
We try to install CUDA by SDK manager. It installed indeed, But the storage remain 1.5G only.

Actually, after flash rootfs, before install cuda, the EMMC storage remain about 6G.

We want to keep some space for user, Is there a way to install CUDA necessary part only?

BTW, How can we reduce the rootfs to get more space for end user?

Thanks for your help!


For example, below comment is to install only essential part of components for the Deeptream user: