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Paper Abstract and Keywords
Presentation 2012-10-31 16:45
A Novel Computation Model for GPU
Atsushi Koike, Kunihiko Sadakane (NII) COMP2012-42
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a novel computation model for GPU. Known parallel computation models such as the PRAM model are not appropriate for evaluating GPU algorithms. Our model, called AGPU, abstracts the essence of current GPU architectures such as global and shared memory, memory coalescing and bank conflicts. We can therefore evaluate asymptotic behavior of GPU algorithms more accurately than known models and we can develop algorithms which are efficient on many real architectures. As an example of algorithm analyses using our model, we analyze complexities of reduction algorithms. There exist two main algorithms for reduction: tree-based algorithm and cascading algorithm. The latter is faster than the former in practice, and we can give an evidence; the latter has lower time complexity in the AGPU model than the former. We also give a novel and efficient algorithm for reduction for the case the reduction operator is non-commutative.
Keyword (in Japanese) (See Japanese page) 
(in English) GPGPU / parallel computation model / reduction algorithms / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 272, COMP2012-42, pp. 53-60, Oct. 2012.
Paper # COMP2012-42 
Date of Issue 2012-10-24 (COMP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF COMP2012-42

Conference Information
Committee COMP  
Conference Date 2012-10-31 - 2012-10-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2012-10-COMP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Novel Computation Model for GPU 
Sub Title (in English)  
Keyword(1) GPGPU  
Keyword(2) parallel computation model  
Keyword(3) reduction algorithms  
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1st Author's Name Atsushi Koike  
1st Author's Affiliation National Institute of Informatics (NII)
2nd Author's Name Kunihiko Sadakane  
2nd Author's Affiliation National Institute of Informatics (NII)
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Speaker Author-1 
Date Time 2012-10-31 16:45:00 
Presentation Time 35 minutes 
Registration for COMP 
Paper # COMP2012-42 
Volume (vol) vol.112 
Number (no) no.272 
Page pp.53-60 
#Pages 8 
Date of Issue 2012-10-24 (COMP) 

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