
Cray's version of MPICH uses a different versioning system than MPICH, so it has been split into its own package. It is an external-only package (always provided by the system, never installed by Spack).
Cray's version of MPICH uses a different versioning system than MPICH, so it has been split into its own package. It is an external-only package (always provided by the system, never installed by Spack).