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A COMPARISON OF THE QR AND QZ MATRIX FACTORISATION METHODS ON PARALLEL COMPUTERS

 

作者: D. J. EVANS,   R. ABDULLAH,  

 

期刊: Parallel Algorithms and Applications  （Taylor Available online 1995）
卷期: Volume 7, issue 1-2  

页码: 43-52

 

ISSN:1063-7192

 

年代: 1995

 

DOI:10.1080/10637199508915521

 

出版商: Taylor & Francis Group

 

关键词: QRandQZorthogonal decomposition;linear systems;shared memory parallel computer

 

数据来源: Taylor

 

摘要:

The well knownQRfactorisation methods for solving linear systems is compared with theQZorthogonal decomposition method [2]. Timings on a shared memory parallel computer confirm the superiority of the latter method by up to 14% for large linear systems for both sequential and parallel implementations.

 

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