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Subject: Re: [OMPI users] regarding the problem occurred while running anmpi programs
From: Prentice Bisbal (prentice_at_[hidden])
Date: 2012-04-26 08:45:07


Actually, he should leave the ":$LD_LIBRARY_PATH" on the end. That way
if LD_LIBRARY_PATH is already defined, the Open MPI directory is just
prepended to LD_LIBRARY_PATH. Omitting ":$LD_LIBRARY_PATH" from his
command could cause other needed elements of LD_LIBRARY_PATH to be lost,
causing other runtime errors.

--
Prentice
 
On 04/25/2012 11:48 AM, tyler.balson_at_[hidden] wrote:
> export LD_LIBRARY_PATH= [location of library] leave out
> the :$LD_LIBRARY_PATH 
> ------------------------------------------------------------------------
> *From:* users-bounces_at_[hidden] [users-bounces_at_[hidden]] on
> behalf of seshendra seshu [seshu199_at_[hidden]]
> *Sent:* Wednesday, April 25, 2012 10:43 AM
> *To:* Open MPI Users
> *Subject:* Re: [OMPI users] regarding the problem occurred while
> running anmpi programs
>
> Hi
> I have exported the library files as below
>
> [master_at_ip-10-80-106-70 ~]$ export
> LD_LIBRARY_PATH=/usr/local/openmpi-1.4.5/lib:$LD_LIBRARY_PATH                                                                       
> [master_at_ip-10-80-106-70 ~]$ 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_at_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_at_[hidden] <mailto:jsquyres_at_[hidden]>> 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_at_[hidden] <mailto:seshu199_at_[hidden]>> wrote:
>
>>     Hi
>>     now i have created an used and tried to run the program but i got
>>     the following error
>>
>>     [master_at_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_at_[hidden]
>>     <mailto:jsquyres_at_[hidden]>> 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_at_[hidden] <mailto:jsquyres_at_[hidden]>
>>         For corporate legal information go to:
>>         http://www.cisco.com/web/about/doing_business/legal/cri/
>>
>>
>>         _______________________________________________
>>         users mailing list
>>         users_at_[hidden] <mailto:users_at_[hidden]>
>>         http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>>
>>
>>
>>     -- 
>>      WITH REGARDS
>>     M.L.N.Seshendra
>>     _______________________________________________
>>     users mailing list
>>     users_at_[hidden] <mailto:users_at_[hidden]>
>>     http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>     _______________________________________________
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>
>
>
>
> -- 
>  WITH REGARDS
> M.L.N.Seshendra
>
>
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