Topology and routing algorithm are among the most important factors that gr
eatly influence network performance. This paper assesses the interaction of
these factors on two related but distinct types of multicomputer networks,
the hypercube and hypermesh. This study shows that the routing algorithm c
an have a great influence on deciding the outcome of any comparison between
competing network topologies. The results reveal that deterministic routin
g favours the hypermesh due to its smaller diameter which reduces considera
bly message blocking compared to the hypercube. However, adaptive routing f
avours the hypercube as it can benefit from its multiple paths to overcome
the degrading effects of its high diameter. (C) 2000 Elsevier Science B.V.
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