Copyright © 2001 Elsevier Science B.V. All rights reserved.
A time-optimal distributed sorting algorithm on a line network
Received 28 February 2001;
revised 11 October 2001.
Communicated by K. Iwama
Available online 31 October 2001.
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Abstract
We have achieved a strict lower time bound of n−1 for distributed sorting on a line network, where n is the number of processes. The lower time bound has traditionally been considered to be n because it is proved based on the number of disjoint comparison-exchange operations in parallel sorting on a linear array. Our result has overthrown the traditional common belief.
Author Keywords: Distributed sorting; Algorithms; Computational complexity; Distributed computing; Line network







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