On a FAQ page ( http://www.open-mpi.org/faq/?category=running#adding-ompi-to-path),
(under 1. What pre-requisites are necessary for running an Open MPI job?), I see an example
of LD_LIBRARY_PATH environment variable:
When I compiled the source, a directory /usr/local/lib/openmpi was generated (with many
files in it). Given that, do I set D_LIBRARY_PATH to /usr/local/lib or do I set
it to /usr/local/lib/openmpi?