-attrend2 1
-attrend2 5
-#needs MPI_Errhandler_set, MPI_Comm_create_keyval, MPI_Comm_free_keyval, MPI_Comm_set_attr, MPI_Comm_delete_attr
-#attrerrcomm 1
-#needs MPI_Errhandler_set, MPI_Type_create_keyval, MPI_Type_dup, MPI_Type_set_attr, MPI_Type_delete_attr
-#attrerrtype 1
-#needs MPI_Type_create_keyval, MPI_Type_dup, MPI_Type_set_attr
-#attr2type 1