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| Presentation | 2008-09-11 16:10 An analysis of a generalized multi-organization scheduling on unrelated parallel machines Fukuhito Ooshita (Osaka Univ.), Tomoko Izumi, Taisuke Izumi (Nagoya Inst. of Tech.)  COMP2008-32 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We consider the grid where each organization provides a machine and several jobs to be executed. While cooperation of organizations is required to minimize the global makespan, each organization also expects the faster completion of its own jobs primarily and thus it is not necessarily cooperative. To handle the above situations, we newly introduce the $\alpha$-cooperative multi-organization scheduling problem ($\alpha$-MOSP), where $\alpha\ge 1$ is a parameter representing the degree of cooperation. The $\alpha$-MOSP minimizes the makespan under the cooperation constraint that each organization does not allow the completion time of its own jobs to be delayed $\alpha$ times of that in the case where those jobs are executed by itself. In this paper, we first investigate the relation between $\alpha$ and the quality of the global makespan. For $\alpha=1$ (i.e., the completely uncooperative case), we show an instance where the cooperation constraint degrades the optimal makespan by $m$ times, where $m$ is the number of organizations. In contrast, for $\alpha>1$, we can construct an algorithm transforming any unconstrained schedule to one satisfying the cooperation constraint. This algorithm bounds the degradation ratio by $\alpha / (\alpha - 1)$, which implies that weak cooperation improves the makespan dramatically. Second, we give some complexity results of $\alpha$-MOSP. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | grid computing / heterogeneous parallel computing environment / scheduling algorithm / approximation algorithm / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 206, COMP2008-32, pp. 63-70, Sept. 2008. | |
| Paper # | COMP2008-32 | |
| Date of Issue | 2008-09-04 (COMP) | |
| 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) | |
| Download PDF | COMP2008-32 |
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| Conference Information | |
| Committee | COMP |
| Conference Date | 2008-09-11 - 2008-09-11 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Inst. of Tech. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | COMP |
| Conference Code | 2008-09-COMP |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An analysis of a generalized multi-organization scheduling on unrelated parallel machines |
| Sub Title (in English) | |
| Keyword(1) | grid computing |
| Keyword(2) | heterogeneous parallel computing environment |
| Keyword(3) | scheduling algorithm |
| Keyword(4) | approximation algorithm |
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| 1st Author's Name | Fukuhito Ooshita |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Tomoko Izumi |
| 2nd Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
| 3rd Author's Name | Taisuke Izumi |
| 3rd Author's Affiliation | Nagoya Institute of Technology (Nagoya Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2008-09-11 16:10:00 |
| Presentation Time | 30 minutes |
| Registration for | COMP |
| Paper # | COMP2008-32 |
| Volume (vol) | vol.108 |
| Number (no) | no.206 |
| Page | pp.63-70 |
| #Pages | 8 |
| Date of Issue | 2008-09-04 (COMP) |
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