Just to be clear: are you saying that mpirun exits with that message? Or is 
your application process exiting with it?

There is no reason for mpirun to be looking for that library.

The library in question is in the <prefix>/lib/openmpi directory, and is named 
mca_ess_pmi.[la,so]


> On Nov 23, 2016, at 2:31 PM, Noam Bernstein <noam.bernst...@nrl.navy.mil> 
> wrote:
> 
> 
>> On Nov 23, 2016, at 5:26 PM, r...@open-mpi.org <mailto:r...@open-mpi.org> 
>> wrote:
>> 
>> It looks like the library may not have been fully installed on that node - 
>> can you see if the prefix location is present, and that the LD_LIBRARY_PATH 
>> on that node is correctly set? The referenced component did not exist prior 
>> to the 2.0 series, so I’m betting that your LD_LIBRARY_PATH isn’t correct on 
>> that node.
> 
> The LD_LIBRARY path is definitely correct on the node that’s running the 
> mpirun, I checked that, and the openmpi directory is supposedly NFS mounted 
> everywhere.  I suppose installation may have not fully worked and I didn’t 
> notice.  What’s the name of the library it’s looking for?
> 
>                                                                               
>                 Noam
> 
> 
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> 
> Noam Bernstein, Ph.D.
> Center for Materials Physics and Technology
> U.S. Naval Research Laboratory
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