We describe dense edge-disjoint embeddings of the complete binary tree with
n leaves in the following n-node communication networks: the hypercube, th
e de Bruijn and shuffle-exchange networks and the two-dimensional mesh. For
the mesh and the shuffle-exchange graphs each edge is regarded as two para
llel (or anti-parallel) edges. The embeddings have the following properties
: paths of the tree are mapped onto edge-disjoint paths of the host graph a
nd at most two tree nodes (just one of which is a leaf) are mapped onto eac
h host node. We prove that the maximum distance from a leaf to the root of
the tree is asymptotically as short as possible in all host graphs except i
n the case of the shuffle-exchange, in which case we conjecture that it is
as short as possible. The embeddings facilitate efficient implementation of
many P-RAM algorithms on these networks. (C) 2000 Elsevier Science B.V. Al
l rights reserved.