Move Open MPI installation to Ubuntu CUDA Docker images (#46569)
Summary:
Instead of installing Open MPI for build and test jobs with environment *-xenial-cuda*, install Open MPI into the relevant Docker images. This would save time and remove duplication in our scripts.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46569
Reviewed By: walterddr
Differential Revision: D24409534
Pulled By: janeyx99
fbshipit-source-id: 6152f2f5daf63744d907dd234bc12d2a5ec58f3d
