Optimal sorting in linear arrays with minimum global control:

Abstract: "We investigate linear sorting arrays with a single global control wire. We show that the lower bound on the necessary time to sort n numbers in such an array is 2n, in contrast to 3n in arrays without global control. We present a two-phase sorting algorithm for arrays with a global c...

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Bibliographic Details
Main Authors: Abolhassan, Ferri (Author), Keller, Jörg (Author), Scheerer, Dieter (Author)
Format: Book
Language:English
Published: Amsterdam 1992
Series:Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS 92,44
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Summary:Abstract: "We investigate linear sorting arrays with a single global control wire. We show that the lower bound on the necessary time to sort n numbers in such an array is 2n, in contrast to 3n in arrays without global control. We present a two-phase sorting algorithm for arrays with a global control wire that matches the time bound of 2n. As 2n is a lower bound for sorting arrays with sequential input and output, this implies that further global control cannot lead to any improvements as long as sequential I/O is assumed. The algorithm needs an array of minimum length [n/2]. The scheme can be easily extended to eliminate duplicate numbers. One possible application of the algorithm is in packet routing for algorithms that need presorted inputs."
Physical Description:6 S.

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