/*D
   MPI_Group_from_session_pset - Get group from a session processes set

Synopsis:
.vb
int MPI_Group_from_session_pset(MPI_Session session, const char *pset_name,
                                MPI_Group *newgroup)
.ve

Input Parameters:
+ session - session (handle)
- pset_name - name of process set to use to create the new group (string)

Output Parameters:
. newgroup - new group derived from supplied session and process set (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_SESSION
.N MPI_ERR_OTHER

D*/

