Title

Non-Blocking Networks

Document Type

Article

Department

Mathematics (HMC)

Publication Date

1986

Abstract

Two variants of the concept "non-blocking" have been defined in the literature: "strictly" non-blocking and "wide-sense" non-blocking. Hitherto, only toy examples were known of connectors that are wide-sense non-blocking but not strictly non-blocking, and these examples are more expensive than comparable strictly non-blocking connectors. In this paper we show for the first time how wide-sense non-blocking connectors can be less expensive than comparable strictly non- blocking connectors. In the simplest case we show that strictly non-blocking n-connectors with depth 2 must have ~2(n 2) edges, but wide-sense non-blocking n-connectors with depth 2 can have O(n 3/2 (log n) I/2) edges.

Rights Information

© 1986 Association for Computing Machinery

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