Presentation 2009-01-29
On Upper and Lower Bounds of Optimal Execution Time of Task Graph by Considering Communication Delays
Takashi OTSUKA, Masato NAKAHARA, Qi-Wei GE, Mitsuru NAKATA, Yuu MORIYAMA, Hirotoshi TONOU,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper deals with upper and lower bounds of optimal execution time of task graphs that are supposed to be executed in a model of multiprocessor system, in which communication times are taken into account. We firstly define a path-dependent minimum subnet whose execution time is the shortest when executed by a single processor. Based on this definition, we then define a critical subnet of task graphs, which is the minimum subnet with the maximum execution time. Analyzing the properties of the minimum subnet and the critical subnet, we finally give the upper and lower bounds of optimal execution time of task graphs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) multiprocessor scheduling / communication time / minimum subnet / critical subnet / upper bound / lower bound
Paper # CST2008-41
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Committee CST
Conference Date 2009/1/22(1days)
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Paper Information
Registration To Concurrent System Technology (CST)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On Upper and Lower Bounds of Optimal Execution Time of Task Graph by Considering Communication Delays
Sub Title (in English)
Keyword(1) multiprocessor scheduling
Keyword(2) communication time
Keyword(3) minimum subnet
Keyword(4) critical subnet
Keyword(5) upper bound
Keyword(6) lower bound
1st Author's Name Takashi OTSUKA
1st Author's Affiliation Yamaguchi University()
2nd Author's Name Masato NAKAHARA
2nd Author's Affiliation Yamaguchi University
3rd Author's Name Qi-Wei GE
3rd Author's Affiliation Yamaguchi University
4th Author's Name Mitsuru NAKATA
4th Author's Affiliation Yamaguchi University
5th Author's Name Yuu MORIYAMA
5th Author's Affiliation Fujitsu TEN Limited
6th Author's Name Hirotoshi TONOU
6th Author's Affiliation Fujitsu TEN Limited
Date 2009-01-29
Paper # CST2008-41
Volume (vol) vol.108
Number (no) 415
Page pp.pp.-
#Pages 4
Date of Issue