[OMPI users] Application porting guide or hints?

[Steven A. DuChene]

Is there any available documentation or write-ups of hints or general 
information on
the task of porting an existing MPI application from a different MPI 
implementation to
OpenMPI? We have an app using mpich1 and it needs some updating or porting to
run on a new platform so I figured it would be a good time to convert it over 
to a
better MPI implementation.
--
Steve