Paper Abstract and Keywords |
Presentation |
2015-03-04 13:50
Implementation and evaluation of architecture using lookup table for approximate computing Shoichiro Sugiyama, tanvir ahmed, Yuko Hara-Azumi (Titech) VLD2014-183 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Various techniques have been proposed for improving the computation performance so far, where correct computations have been always expected. Recently, however, we observe that some errors would be acceptable depending on the applications, e.g., image and audio processing whose output is perceived by human’s five sense. In this paper, exploiting such features of acceptable errors or approximate computing, we propose an architecture which reduces the instructions to be executed. Focusing on the fact that many applications for which approximate computing can be applied contain loop structures, we explore the chance of reusing results computed in the previous iteration if the input data to the loop is close enough between the previous and current iterations. The structure is realized by using a small memory called Lookup Table. In our evaluation, our technique was applied to a single-core MIPS processor on Xilinx FPGA Zynq XC7Z045-2, which demonstrated good speedup with small area overhead (i.e., an increase in registers by 1.0% and LUTs by 2.9%). |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Approximate computing / Data reuse / Lookup table / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 476, VLD2014-183, pp. 171-176, March 2015. |
Paper # |
VLD2014-183 |
Date of Issue |
2015-02-23 (VLD) |
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) |
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VLD2014-183 |
Conference Information |
Committee |
VLD |
Conference Date |
2015-03-02 - 2015-03-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okinawa Seinen Kaikan |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
VLD |
Conference Code |
2015-03-VLD |
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Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Implementation and evaluation of architecture using lookup table for approximate computing |
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Approximate computing |
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Data reuse |
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Lookup table |
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1st Author's Name |
Shoichiro Sugiyama |
1st Author's Affiliation |
Tokyo Institute of Technology (Titech) |
2nd Author's Name |
tanvir ahmed |
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Tokyo Institute of Technology (Titech) |
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Yuko Hara-Azumi |
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Tokyo Institute of Technology (Titech) |
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Speaker |
Author-1 |
Date Time |
2015-03-04 13:50:00 |
Presentation Time |
25 minutes |
Registration for |
VLD |
Paper # |
VLD2014-183 |
Volume (vol) |
vol.114 |
Number (no) |
no.476 |
Page |
pp.171-176 |
#Pages |
6 |
Date of Issue |
2015-02-23 (VLD) |
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