by default, the openMPI installer installs the libraries in /usr/local/lib, which is a standard location for the C compiler to look for libraries. So *why* do I need to explicitly specify this with LD_LIBRARY_PATH? For example, when I am compiling with pthread calls and pass -lpthread to gcc, I need not specify the location of libpthread.so with LD_LIBRARY_PATH. I had the same problem as Calin so I am curious. This is assuming he has not redirected the installation path to some non-standard location.

On 10/19/06, George Bosilca <bosilca@cs.utk.edu> wrote:

Calin,

Look like you're missing a proper value for the LD_LIBRARY_PATH.
Please read the Open MPI FAW at http://www.open-mpi.org/faq/?
category=running.

  Thanks,
    george.

On Oct 19, 2006, at 6:41 AM, calin pal wrote:

>
>   hi,
>              i m calin from india....i m working on openmpi....i
> have installed openmpi 1.1.1-tar.gz in four machines in our college
> lab....in one system the openmpi is properly working.i have written
> "hello world" program in all machines .but in one machine its
> working properly.in other machine gives
> ((
> (hello:error while loading shared libraries:libmpi.so..o;cannot
> open shared object file:no such file or directory.)))))
>
>
> what is the problem plz tel me......and how to solve it..please
> tell me
>
> calin pal
> india
> fergusson college
> msc.tech(maths and computer sc.)
>
> _______________________________________________
> users mailing list
> users@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users

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