Paper Abstract and Keywords |
Presentation |
2010-09-16 15:00
Hardware Lossless-Compressors of Floating-Point Data Streams to Enhance Memory Bandwidth Kentaro Sano, Kazuya Katahira, Satoru Yamamoto (Tohoku Univ.) RECONF2010-24 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper presents an FPGA-based lossless compressor that directly compresses floating-point data streams to enhance the effective memory bandwidth of a lattice Boltzmann method (LBM) accelerator. We show that the compression algorithms based on the 1D polynomial prediction are suitable for high-throughput hardware design. Moreover we show that integer operations provide comparable prediction performance to a floating-point predictor, while an integer predictor is expected to have smaller circuits than a floating-point one. We evaluate the compression ratio, the operating frequency and the resource consumption of the compressors with integer-based predictors through their prototype implementation using ALTERA Stratix III FPGA. We demonstrate that the implemented compressors dominate only 0.15 to 0.23 % of the entire logic resources and operate at 95 to 174 MHz to provide the compression ratio of up to 3.5, which means that we can enhance the memory bandwidth by a factor of 3.5 on average. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Lossless data compression / Floating-Point Data / Memory Bandwidth / Stream Computation / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 204, RECONF2010-24, pp. 37-42, Sept. 2010. |
Paper # |
RECONF2010-24 |
Date of Issue |
2010-09-09 (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) |
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RECONF2010-24 |
Conference Information |
Committee |
RECONF |
Conference Date |
2010-09-16 - 2010-09-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Shizuoka University (Faculty of Eng., Hall 2) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Reconfigurable Systems, etc. |
Paper Information |
Registration To |
RECONF |
Conference Code |
2010-09-RECONF |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Hardware Lossless-Compressors of Floating-Point Data Streams to Enhance Memory Bandwidth |
Sub Title (in English) |
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Keyword(1) |
Lossless data compression |
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Floating-Point Data |
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Memory Bandwidth |
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Stream Computation |
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1st Author's Name |
Kentaro Sano |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Kazuya Katahira |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Satoru Yamamoto |
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Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2010-09-16 15:00:00 |
Presentation Time |
25 minutes |
Registration for |
RECONF |
Paper # |
RECONF2010-24 |
Volume (vol) |
vol.110 |
Number (no) |
no.204 |
Page |
pp.37-42 |
#Pages |
6 |
Date of Issue |
2010-09-09 (RECONF) |
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