Paper Abstract and Keywords |
Presentation |
2007-11-29 13:50
Optimal Scheduling of Soft Real-time Computing Systems Using Language Measure Yuri Murata, Toshimitsu Ushio (Osaka Univ.) CAS2007-69 CST2007-20 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In soft real-time systems, if a task completes after its deadline, its utility degrades gradually as its completion is delayed.
So it is necessary to schedule tasks in consideration of the degradation.
In this paper, we model preemptive execution of each task by a timed discrete event system (DES).
To model the degradation of utilities of tasks, we apply a signed language measure so that performance of the completed tasks can be evaluated quantitatively.
Moreover, global constraints such as resource limitations are also described by the language measure of the composite model.
We modify the language measure to model a state where a fatal damage occurs in the system.
Then, we apply language measure based optimal supervisory control of DESs to the design of an optimal scheduler in the sense that it maximizes the language measure of the generated language of the controlled DES. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
real-time system / scheduling / language measure / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, Nov. 2007. |
Paper # |
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Date of Issue |
2007-11-22 (CAS, CST) |
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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CAS2007-69 CST2007-20 |
Conference Information |
Committee |
MSS CAS |
Conference Date |
2007-11-29 - 2007-11-30 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Niigata University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Graphs, Petri nets, Neural Networks |
Paper Information |
Registration To |
MSS |
Conference Code |
2007-11-CST-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Optimal Scheduling of Soft Real-time Computing Systems Using Language Measure |
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real-time system |
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scheduling |
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language measure |
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1st Author's Name |
Yuri Murata |
1st Author's Affiliation |
Osaka University (Osaka Univ.) |
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Toshimitsu Ushio |
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Osaka University (Osaka Univ.) |
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Speaker |
Author-1 |
Date Time |
2007-11-29 13:50:00 |
Presentation Time |
25 minutes |
Registration for |
MSS |
Paper # |
CAS2007-69, CST2007-20 |
Volume (vol) |
vol.107 |
Number (no) |
no.361(CAS), no.363(CST) |
Page |
pp.11-16 |
#Pages |
6 |
Date of Issue |
2007-11-22 (CAS, CST) |
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