Metapackage to select the MPI variant. Use conda's pinning mechanism in your environment to control which variant you want.
mpi-feedstock is a metapackage that serves as a mutex to ensure only a single MPI variant is present. Available variants can be found
in ./conda-build-config.yaml. If a package needs to include an MPI variant, you can specify it in the pinnings. For example: - mpi 1.0 mpich.
