I would really suggest doing a little reading in the FAQ.  It talks about setting up ssh keys, etc.

   http://www.open-mpi.org/faq/?category=rsh

On Apr 25, 2012, at 12:03 PM, seshendra seshu wrote:

> Hi,
> Thanks its has worked but when i tried to run for a 2 nodes , i have got the following error
>
> [master@ip-10-80-106-70 ~]$ mpirun -n 2 --hostfile hostfile out
> Permission denied (publickey,gssapi-with-mic).
> --------------------------------------------------------------------------
> A daemon (pid 9923) died unexpectedly with status 255 while attempting
> to launch so we are aborting.
>
> There may be more information reported by the environment (see above).
>
> This may be because the daemon was unable to find all the needed shared
> libraries on the remote node. You may set your LD_LIBRARY_PATH to have the
> location of the shared libraries on the remote nodes and this will
> automatically be forwarded to the remote nodes.
> --------------------------------------------------------------------------
> --------------------------------------------------------------------------
> mpirun noticed that the job aborted, but has no info as to the process
> that caused that situation.
> --------------------------------------------------------------------------
> mpirun: clean termination accomplished
>
> [master@ip-10-80-106-70 ~]$
>
>
> so please help me in solving this.
>
> Thanking you.
>
>
> On Wed, Apr 25, 2012 at 5:48 PM, tyler.balson@huskers.unl.edu <tyler.balson@huskers.unl.edu> wrote:
> export LD_LIBRARY_PATH= [location of library] leave out the :$LD_LIBRARY_PATH

> From: users-bounces@open-mpi.org [users-bounces@open-mpi.org] on behalf of seshendra seshu [seshu199@gmail.com]
> Sent: Wednesday, April 25, 2012 10:43 AM
> To: Open MPI Users
> Subject: Re: [OMPI users] regarding the problem occurred while running anmpi programs
>
> Hi
> I have exported the library files as below
>
> [master@ip-10-80-106-70 ~]$ export LD_LIBRARY_PATH=/usr/local/openmpi-1.4.5/lib:$LD_LIBRARY_PATH
> [master@ip-10-80-106-70 ~]$ mpirun --prefix /usr/local/openmpi-1.4.5 -n 1 --hostfile hostfile out
> out: error while loading shared libraries: libmpi_cxx.so.0: cannot open shared object file: No such file or directory
> [master@ip-10-80-106-70 ~]$ mpirun --prefix /usr/local/lib/ -n 1 --hostfile hostfile out
> out: error while loading shared libraries: libmpi_cxx.so.0: cannot open shared object file: No such file or directory
>
> But still iam getting the same error.
>
>
>
>
>
> On Wed, Apr 25, 2012 at 5:36 PM, Jeff Squyres (jsquyres) <jsquyres@cisco.com> wrote:
> See the FAQ item I cited.
>
> Sent from my phone. No type good.
>
> On Apr 25, 2012, at 11:24 AM, "seshendra seshu" <seshu199@gmail.com> wrote:
>
>> Hi
>> now i have created an used and tried to run the program but i got the following error
>>
>> [master@ip-10-80-106-70 ~]$ mpirun -n 1 --hostfile hostfile out
>> out: error while loading shared libraries: libmpi_cxx.so.0: cannot open shared object file: No such file or directory
>>
>>
>> thanking you
>>
>>
>>
>> On Wed, Apr 25, 2012 at 5:12 PM, Jeff Squyres <jsquyres@cisco.com> wrote:
>> On Apr 25, 2012, at 11:06 AM, seshendra seshu wrote:
>>
>> > so should i need to create an user and run the mpi program. or how can i run in cluster
>>
>> It is a "best practice" to not run real applications as root (e.g., MPI applications).  Create a non-privlidged user to run your applications.
>>
>> Then be sure to set your LD_LIBRARY_PATH if you installed Open MPI into a non-system-default location.  See this FAQ item:
>>
>>    http://www.open-mpi.org/faq/?category=running#adding-ompi-to-path
>>
>> --
>> Jeff Squyres
>> jsquyres@cisco.com
>> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
>>
>>
>> _______________________________________________
>> users mailing list
>> users@open-mpi.org
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>>
>>
>> --
>>  WITH REGARDS
>> M.L.N.Seshendra
>> _______________________________________________
>> users mailing list
>> users@open-mpi.org
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
> _______________________________________________
> users mailing list
> users@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
>
> --
>  WITH REGARDS
> M.L.N.Seshendra
>
> _______________________________________________
> users mailing list
> users@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
>
> --
>  WITH REGARDS
> M.L.N.Seshendra
> _______________________________________________
> users mailing list
> users@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users


--
Jeff Squyres
jsquyres@cisco.com
For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/


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