Metapackage to select the MPI variant. Use conda's pinning mechanism in your environment to control which variant you want.
copied from cf-staging / mpiconda install conda-forge::mpi
conda install conda-forge/label/broken::mpi
conda install conda-forge/label/cf201901::mpi
conda install conda-forge/label/cf202003::mpi
conda install conda-forge/label/gcc7::mpi