The format of the HPE/Cray supplied module for cray-mvapich2 on HPE apollo systems is
very different from the cray-mpich module supplied on Cray EX and XE
systems.
Recent changes to the cray-mpich package -
https://github.com/spack/spack/pull/23470
broke support for cray-mvapich2 and relies now on the structure of the
cray-mpich module to work properly.
Rather than try to support two very different vendor mpich modules
using the same spack package, just add another one specialized for
the cray-mvapich2 module.
Signed-off-by: Howard Pritchard <hppritcha@gmail.com>
6d613bded0