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Paper Abstract and Keywords
Presentation 2012-05-29 11:25
Optimization of PE Array Interconnection on CMA to Reduce Configuration Data
Rie Uno (keio Univ.), Nobuaki Ozaki, Hideharu Amano (Keio Univ.) RECONF2012-6
Abstract (in Japanese) (See Japanese page) 
(in English) Cool Mega Array or CMA is a low power reconfigurable processor array for
battery driven mobile devices.We developed a prototype chip CMA-1. It is consisting of 8 × 8 PE array and μ-controller for controlling data alignment.We just borrowed the network of a dynamically reconfigurable processor for CMA-1, and sufficient examination about it has not been carried out so far.Also, the overhead of the configuration data transfer time to CMA-1 appeared to bottleneck the system performance.It means that the amount of configuration data for PE array should be as small as possible .In this paper, we evaluated three types of PE array network for CMA, which can archive better energy efficiency with a small amount of configuration data.As a result, in CMA-const which has island style networks and dedicated links for sending constants, we could reduce the number of steps for transferring configuration data by 44.4％ on average, 53.8％ at most without a negative influence on performance and power of CMA.
Keyword (in Japanese) (See Japanese page) 
(in English) Reconfigurable System / Interconnection network / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 70, RECONF2012-6, pp. 31-36, May 2012.
Paper # RECONF2012-6 
Date of Issue 2012-05-22 (RECONF) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF RECONF2012-6

Conference Information
Committee RECONF  
Conference Date 2012-05-29 - 2012-05-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Tiruru (Naha Okinawa, Japan) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Reconfigurable Systems, etc. 
Paper Information
Registration To RECONF 
Conference Code 2012-05-RECONF 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Optimization of PE Array Interconnection on CMA to Reduce Configuration Data 
Sub Title (in English)  
Keyword(1) Reconfigurable System  
Keyword(2) Interconnection network  
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1st Author's Name Rie Uno  
1st Author's Affiliation keio University (keio Univ.)
2nd Author's Name Nobuaki Ozaki  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Hideharu Amano  
3rd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2012-05-29 11:25:00 
Presentation Time 25 minutes 
Registration for RECONF 
Paper # RECONF2012-6 
Volume (vol) vol.112 
Number (no) no.70 
Page pp.31-36 
#Pages 6 
Date of Issue 2012-05-22 (RECONF) 

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