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From: Gleb Natapov (glebn_at_[hidden])
Date: 2007-08-29 03:09:45

On Wed, Aug 29, 2007 at 12:26:54PM +0530, Amit Kumar Saha wrote:
> Hello all,
> I have installed Open MPI 1.2.3 from source on Debian 4.0. I did the
> "make all install" using root privileges.
> Now when I try to execute a simple program , I get the following:
> debian-desktop-1:/home/amit/junk/mpi-codes# mpirun --np 1 --hostfile
> hostfile ./a.out
> ./a.out: error while loading shared libraries: cannot
> open shared object file: No such file or directory
> I get the error whether I do it as "normal user" or "root user"
> Please suggest.
Where have you installed it? If in /usr/local/ then try to run
mpirun --prefix /usr/local/ --np 1 --hostfile hostfile ./a.out

If this helps then you may want to re-run configure script with flag
--enable-orterun-prefix-by-default and recompile.