> On 16 Dec 2016, at 20:42, Jeff Squyres (jsquyres) <jsquy...@cisco.com> wrote:
> 
> If you don't build Open MPI and your application with the same compiler 
> flags, weird things like this are bound to happen.  Make sure Open MPI is 
> built the same way.

Yes, I just did the default install with homebrew. I also just learned about 
the -fdefault-real-8 in our project.

> 
> Also, note that the formal signature for MPI_Wtime is to return a DOUBLE 
> PRECISION.  REAL(KIND=8) is common, but it is not technically a correct 
> Fortran data type.

Yes, I know. Alas, this is how it currently is in the code I use ...

Many thanks for the help!

-- Jan
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