-int nary_tree_bcast(void *buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm,int arity);
-int nary_tree_barrier( MPI_Comm comm, int arity );
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */