[mpich-discuss] error in mpiexec

[Jed Brown]

On Fri, Feb 3, 2012 at 21:27, Dave Goodell <goodell at mcs.anl.gov> wrote:

> This topic/suggestion has come up before, but it's harder to do in
> practice than you might think.
>
> The primary problem is that the "singleton init" case has no mpiexec, so
> the check can't be quite as simple as just "assert some environment
> variable contains the right magic cookie value".  At best we could try to
> detect some of the Open MPI environment variables and the OMPI guys could
> try to detect some of our environment variables.  It would never really be
> a robust solution.
>

Anything that worked for the 90+% of people that either forgot about their
path mismatch or don't understand that they have to locate the correct
mpiexec. It's really common on Macs where Open MPI is in the system path.
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