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Subject: Re: [OMPI users] openMPI shared with NFS, but says different version
From: Gus Correa (gus_at_[hidden])
Date: 2010-07-27 18:59:29


Hi Cristobal

Try using the --prefix option of mpiexec.
"man mpiexec" is your friend!

Alternatively, append the OpenMPI directories to your
PATH *and* LD_LIBRARY_PATH on your .bashrc/.csrhc file
See this FAQ:
http://www.open-mpi.org/faq/?category=running#adding-ompi-to-path

I hope it helps,
Gus Correa

Cristobal Navarro wrote:
> Hi,
>
> Even when executing a hello world openmpi, i get this error, which is
> then ignored.
> fcluster_at_fuego:~$ mpirun --hostfile myhostfile -np 5 testMPI/hola
> [agua:02357] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_ofud: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02354] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_ofud: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02356] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_ofud: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02358] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_ofud: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02355] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_ofud: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02358] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_openib: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02355] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_openib: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02354] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_openib: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02356] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_openib: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> [agua:02357] mca: base: component_find: unable to open
> /opt/openmpi-1.4.2/lib/openmpi/mca_btl_openib: perhaps a missing symbol,
> or compiled for a different version of Open MPI? (ignored)
> Process 3 on agua out of 5
> Process 4 on agua out of 5
> Process 1 on agua out of 5
> Process 2 on agua out of 5
> Process 0 on agua out of 5
>
>
> /opt/openmpi-1.4.2/ is shared through NFS.
>
> master node did had an older openmpi version before installing 1.4.2,
> but i removed them all with
> sudo apt-get --purge remove libopenmpi1 libopenmpi-dev openmpi-bin
> openmpi-dev openmpi-common
> i checked for /usr/lib64/openmpi and for /usr/lib/openmpi and
> deleted them.
>
> however, when compiling again i keep getting this error,
> something must be remaining from the older version of openmpi, but i
> really dont know where that remaining could be.
> any help, welcome
>
>
>
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