Paper Abstract and Keywords |
Presentation |
2008-10-16 16:10
Improvement of iterative methods on GPU by partially using pseudo double precision calculation Fumiaki Fujiki, Hidetoshi Ando, Koji Toriyama (Univ. of Yamanashi) SS2008-32 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Many iterative methods are implemented on the GPU for high performance computation, but are limited to single precision floating point accuracy. The popular conjugate gradient method is influenced by the rounding error, and the necessary iteration to convergence is increased under the single precision accuracy. In this paper, we improve convergence of conjugate gradient method, and MGCG method on GPU by partially using pseudo double precision calculation. As a result of improvement, the necessary iteration to convergence is decreased, and converges faster than single precision calculation. On the other hand, the improvement of MGCG was only achieved by bias correction. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
GPU / pseudo double precision / iteration method / conjugate gradient method / MGCG method / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 242, SS2008-32, pp. 31-36, Oct. 2008. |
Paper # |
SS2008-32 |
Date of Issue |
2008-10-09 (SS) |
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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SS2008-32 |
Conference Information |
Committee |
SS |
Conference Date |
2008-10-16 - 2008-10-17 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
University of Yamanashi, Kofu Campus |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
general |
Paper Information |
Registration To |
SS |
Conference Code |
2008-10-SS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Improvement of iterative methods on GPU by partially using pseudo double precision calculation |
Sub Title (in English) |
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Keyword(1) |
GPU |
Keyword(2) |
pseudo double precision |
Keyword(3) |
iteration method |
Keyword(4) |
conjugate gradient method |
Keyword(5) |
MGCG method |
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1st Author's Name |
Fumiaki Fujiki |
1st Author's Affiliation |
Graduate School of University of Yamanashi (Univ. of Yamanashi) |
2nd Author's Name |
Hidetoshi Ando |
2nd Author's Affiliation |
Graduate School of University of Yamanashi (Univ. of Yamanashi) |
3rd Author's Name |
Koji Toriyama |
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Graduate School of University of Yamanashi (Univ. of Yamanashi) |
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Speaker |
Author-1 |
Date Time |
2008-10-16 16:10:00 |
Presentation Time |
30 minutes |
Registration for |
SS |
Paper # |
SS2008-32 |
Volume (vol) |
vol.108 |
Number (no) |
no.242 |
Page |
pp.31-36 |
#Pages |
6 |
Date of Issue |
2008-10-09 (SS) |
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