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Subject: Re: [OMPI users] "Failed to find the followingexecutable" problemunder Torque
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-09-29 09:19:36


On Sep 28, 2009, at 12:17 PM, Blosch, Edwin L wrote:

> Command: ['mpirun', '--prefix /usr/mpi/intel/openmpi-1.2.8', '-np
> 8', '--mca btl
>

Ah, yes, this would definitely be a problem.

> whereas if I take the additional step of removing spaces from the
> arguments, it works:
>
> Command: ['mpirun', '--prefix', '/usr/mpi/intel/openmpi-1.2.8',
> '--machinefile', '/var/spool/torque/aux/7854.fwnaeglingio', '-np',
> '8', '--mca', 'btl', '^tcp', '--mca', 'mpi_leave_pinned', '1', '--
> mca', 'mpool_base_use_mem_hooks', '1', '-x', 'LD_LIBRARY_PATH', '-
> x', 'MPI_ENVIRONMENT=1', '/tmp/7854.fwnaeglingio/
> falconv4_ibm_openmpi', '-cycles', '10', '-ri', 'restart.5010', '-
> ro', '/tmp/7854.fwnaeglingio/restart.5010']
>
>
> Somehow the handling of the argv list by orterun has changed in
> 1.2.8 as compared to 1.2.2-1, as the spawned command used to execute
> just fine.
>
> I'm guessing the elements in argv used to be split on spaces first,
> before being parsed, whereas now they are not, resulting in the
> first string being reported as an unrecognized option.
>

I don't think we've changed that level of command line parsing in a
long, long time, but then again 1.2.2 is a pretty long time ago. So I
guess it's possible...? (I honestly don't remember)

-- 
Jeff Squyres
jsquyres_at_[hidden]