Yes, I am trying to run the program using multiple hosts. 

The program executes fine but does not use any slaves when I run

  mpirun -np 8 hello --hostfile slaves

The program throws error saying shared libraries not found when I run

  mpirun --hostfile slaves -np 8
  

On Mon, Apr 2, 2012 at 2:52 PM, Rayson Ho <raysonlogin@gmail.com> wrote:
On Sun, Apr 1, 2012 at 11:27 PM, Rohan Deshpande <rohand87@gmail.com> wrote:
>   error while loading shared libraries: libmpi.so.0: cannot open shared
> object file no such object file: No such file or directory.

Were you trying to run the MPI program on a remote machine?? If you
are, then make sure that each machine has the libraries installed (or
you can install Open MPI on an NFS directory).

Rayson

=================================
Open Grid Scheduler / Grid Engine
http://gridscheduler.sourceforge.net/

Scalable Grid Engine Support Program
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>
> When I run using - mpirun -np 1 ldd hello the following libraries are not
> found
>   1. libmpi.so.0
>   2. libopen-rte.so.0
>   3. libopen.pal.so.0
>
> I am using openmpi version 1.4.5. Also PATH and LD_LIBRARY_PATH variables
> are correctly set and 'which mpicc' returns correct path
>
> Any help would be highly appreciated.
>
> Thanks
>
>
>
>
>
>
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--

Best Regards,

ROHAN DESHPANDE