Presentation 2000/4/26
Scheduling Algorithms for Gather Operations in Distributed Heterogeneous Systems
Jun-ichi HATTA, Susumu SHIBUSAWA,
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Abstract(in English) Recently, systems such as PCs/Workstations clusters comprise of different kinds of nodes and connected over different kinds of networks. Efficient collective communication operations are necessary and have been studied in these systems. In this paper, we propose heuristic scheduling algorithms for efficient gather operations in these systems. We also evaluate them by simulation. The results of simulation show that gather operations scheduled by proposed algorithms are more efficient than sequential gather operations in distributed heterogeneous systems. The results also show that the efficiency of gather operations scheduled by them depend on the ratio of the cost that depends on the message size to the cost that does not depend on the message size in point-to-point communication.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Gather operation / distributed heterogeneous system / gather tree / scheduling algorithm / sequential gather operation / parallel gather operation
Paper # COMP2000-5
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Committee COMP
Conference Date 2000/4/26(1days)
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Registration To Theoretical Foundations of Computing (COMP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Scheduling Algorithms for Gather Operations in Distributed Heterogeneous Systems
Sub Title (in English)
Keyword(1) Gather operation
Keyword(2) distributed heterogeneous system
Keyword(3) gather tree
Keyword(4) scheduling algorithm
Keyword(5) sequential gather operation
Keyword(6) parallel gather operation
1st Author's Name Jun-ichi HATTA
1st Author's Affiliation Department of Computer and Information Sciences Faculty of Engineering, Ibaraki University()
2nd Author's Name Susumu SHIBUSAWA
2nd Author's Affiliation Department of Computer and Information Sciences Faculty of Engineering, Ibaraki University /
Date 2000/4/26
Paper # COMP2000-5
Volume (vol) vol.100
Number (no) 25
Page pp.pp.-
#Pages 8
Date of Issue