[OMPI users] OpenMP & Open MPI

[Matthew Larkin]

Hello,
My understanding is Open MPI can utilize shared and/or distributed memory 
architecture (parallel programming model). OpenMP is soley for shared memory 
systems. 
I believe Open MPI incorporates OpenMP from some of the other archives I 
glanced at. 
Is this a true statement? If so, is there any need to create a hybrid model 
that uses both OpenMP and Open MPI?
Thanks!