Optimal Parallel Routing in Star Networks
IEEE Transactions on Computers
Nearly Optimal One-to-Many Parallel Routing in Star Networks
IEEE Transactions on Parallel and Distributed Systems
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Let ${\cal S} = {C1, C2, . . . , Ck}$ be a collection of pairwise disjoint subsets of U = { 1, 2, . . . , n} such that $\bigcup_{i = 1}^k Ci = U. A partition matching of $\cal S$ consists of two subsets {a1, . . . , am} and {b1, . . ., bm} of U together with a sequence of distinct partitions of $\cal S$: $({\cal A}_1, {\cal B}_1), \ldots, ({\cal A}_m, {\cal B}_m)$ such that ai is contained in a subset in the collection ${\cal A}_i$ and bi is contained in a subset in the collection ${\cal B}_i$ for all i = 1, . . . , m. An efficient algorithm is developed that constructs a maximum partition matching for a given collection $\cal S$. The algorithm can be used to construct optimal parallel routing between two nodes in interconnection networks.