(Attempt to) evaluate Intel MPI + coarrays on Cray Aries network

[bcfriesen]

The Cray Fortran compiler integrates coarrays with a communication library which uses the Aries interconnect (featured, e.g., on the Cray XC series systems). It would be an interesting exercise to determine if one can also compile Intel MPI and coarrays with Aries, so that we can measure performance between the two coarray implementations on the same hardware.