Did the version you are running get installed in /usr? Sounds like you are 
picking up a different version when running a command - i.e., that your PATH is 
finding a different installation than the one in /usr.


On Oct 26, 2011, at 3:11 AM, Patrick Begou wrote:

> I need to change system wide how OpenMPI launch the jobs on the nodes of my 
> cluster.
> 
> Setting:
> export OMPI_MCA_plm_rsh_agent=oarsh
> 
> works fine but I would like this config to be the default with OpenMPI. I've 
> read several threads (discussions, FAQ) about this but none of the provided 
> solutions seams to work.
> 
> I have two files:
> /usr/lib/openmpi/1.4-gcc/etc/openmpi-mca-params.conf
> /usr/lib64/openmpi/1.4-gcc/etc/openmpi-mca-params.conf
> 
> In these files I've set various flavor of the syntax (only one at a time, and 
> the same in each file of course!):
> test 1) plm_rsh_agent = oarsh
> test 2) pls_rsh_agent = oarsh
> test 3) orte_rsh_agent = oarsh
> 
> But each time when I run "ompi_info --param plm rsh" I get:
> MCA plm: parameter "plm_rsh_agent" (current value: "ssh : rsh", data source: 
> default value, synonyms:
>                  pls_rsh_agent)
>                  The command used to launch executables on remote nodes 
> (typically either "ssh" or "rsh")
> 
> With the exported variable it works fine.
> Any suggestion ?
> 
> The rpm package of my linux Rocks Cluster provides:
>   Package: Open MPI root@build-x86-64 Distribution
>   Open MPI: 1.4.3
>   Open MPI SVN revision: r23834
>   Open MPI release date: Oct 05, 2010
> 
> Thanks
> 
> Patrick
> 
> 
> 
> --
> ===============================================================
> |  Equipe M.O.S.T.         | http://most.hmg.inpg.fr          |
> |  Patrick BEGOU           |       ------------               |
> |  LEGI                    | mailto:patrick.be...@hmg.inpg.fr |
> |  BP 53 X                 | Tel 04 76 82 51 35               |
> |  38041 GRENOBLE CEDEX    | Fax 04 76 82 52 71               |
> ===============================================================
> 
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