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I have seen situations where after installing Open MPI, the wrapper
compilers did not create any executables, and seemed to do nothing.
I was never able to figure out why the wrappers were broken, and
reinstalling Open MPI always seemed to make it work.
If I recall correctly, when this happened 'mpicc --showme' returned nothing.
FWIW, I only ever saw this on old versions of Open MPI, so I would
second Jeff in recommending an upgrade.
Jeff Squyres wrote:
> On Nov 14, 2007, at 10:48 PM, Sajjad wrote:
>> No i didn't find any executable after the issued the command "mpicc
>> mpitest1.c -o mpitest1"
> If you're not finding the executable at all, then something else is
> very wrong. The "mpicc" command is just a "wrapper" compiler, meaning
> that it takes your command line, adds some more flags, and then
> invokes the underlying compiler (e.g., gcc). You can use the "--
> showme" flag to see exactly what command mpicc actually invokes:
> mpicc mpitest1.c -o mpitest1 --showme
> Then try running the command that that shows manually and see what
> happens. If your compiler is not producing executables at all, then
> you have some other (non-MPI) system-level issue.
>> And sorry for dumping such an irrelevant chunk of data to the
>> mailing list.
> We actually request the output from ompi_info from users who are
> having run-time problems. See the "getting help" page on the OMPI web
> Also, I still strongly recommend upgrading to the latest stable
> version of Open MPI if possible. The version you have (v1.1) should
> not be responsible for you not being able to create executables,
> though -- you may need to fix that independently of upgrading Open MPI.