mpi_comm_null_delete_fn 109 ompi/mpi/fortran/base/attr_fn_f.c mpi_comm_null_delete_fn, mpi_comm_null_delete_fn 464 ompi/mpi/fortran/mpif-h/prototypes_mpi.h PN2(void, MPI_Comm_null_delete_fn, mpi_comm_null_delete_fn, MPI_COMM_NULL_DELETE_FN, (MPI_Fint* comm, MPI_Fint* comm_keyval, MPI_Aint* attribute_val_out, MPI_Aint* extra_state, MPI_Fint* ierr));