/*D
   MPI_Session_get_nth_pset - Get the nth processes set

Synopsis:
.vb
int MPI_Session_get_nth_pset(MPI_Session session, MPI_Info info, int n,
                             int *pset_len, char *pset_name)
.ve

Input Parameters:
+ session - session (handle)
. info - info object (handle)
- n - index of the desired process set name (integer)

Input/Output Parameters:
. pset_len - length of the pset\_name argument (integer)

Output Parameters:
. pset_name - name of the nth process set (string)

.N ThreadSafe

.N Fortran

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

D*/

