Because OpenCoarrays calls MPI from C, the possible Fortran ABI variation across major versions of GCC should not be an issue. Damian should be fine to apt-get install mpich and then use the resulting C library. I imagine that cafc='mpicc -cc=gfortran-6' would work, but this is just a guess. Intel recently approved Windows 10. If I can get the VM for this, I'll try to debug this. Jeff On Tue, Oct 11, 2016 at 10:57 AM, Kenneth Raffenetti <[email protected]> wrote:

mpicc and friends are wrappers around the regular gcc/g++/gfortran compilers. If you have the version you want listed first in your PATH, things will probably work as you want. You can test by running 'mpicc -show' or 'mpicc -version' and check the underlying compiler.

Ken

On 10/11/2016 12:22 PM, Rob Latham wrote:

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On 10/11/2016 10:05 AM, Kenneth Raffenetti wrote:

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On 10/11/2016 09:45 AM, Damian Rouson wrote:

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Also, if you have Ubuntu, can you simply apt-get install mpich?

On this system, apt-get installs GCC 4.8. My goal is to support users of OpenCoarrays, which requires at least GCC 5.1.0 and preferably GCC 6.1.0. Is there a Debian dpkg file that I could use to install MPICH?

Yes, try 'apt-get install mpich'.

I think he's saying "apt-get install mpich" brings in gcc-4.8 as a dependency.

Perhaps "apt-get source mpich" or maybe with the "-b" flag for bulid-dependencies, then re-building the debian package will get you what you need?

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