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MIMD–SIMD hybrid system––towards a new low cost parallel system

✍ Scribed by Leo Chin Sim; Heiko Schroder; Graham Leedham


Book ID
104304187
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
246 KB
Volume
29
Category
Article
ISSN
0167-8191

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✦ Synopsis


This paper describes a new parallel architectural system which we have called an MIMD-SIMD hybrid system. As the name implies, MIMD-SIMD hybrid system (also denoted as hybrid system in this paper) is a combination of both SIMD and MIMD systems working concurrently to produce an optimal architecture. This new parallel architecture has the capability of achieving speedup rates more than its corresponding MIMD architecture can achieve alone. We introduce our new SIMD concept and also show the contribution of the SIMD on this hybrid system. We have also developed a general formula for determining the speedup of the hybrid system so that accurate predictions can be made on the performance of the hybrid system. A MIMD-SIMD hybrid system was constructed and was used to implement on a visualization algorithm.


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Within the context of recursive least-squares, the implementation of a Householder algorithm for block updating the QR decomposition, on massively parallel SIMD systems, is considered. Initially, two implementations based on dierent mapping strategies for distributing the data matrices over the proc