NDLI: On resource pooling in SITA-like parallel server systems

Content Provider	IEEE Xplore Digital Library
Author	Yinghui Wang Down, D.
Copyright Year	2014
Description	Author affiliation: Dept. of Comput. & Software, McMaster Univ., Hamilton, ON, Canada (Yinghui Wang; Down, D.)
Abstract	The routing policy Size Interval Task Assignment (SITA) isolates small arrivals from large arrivals, while choosing intervals to balance the workload of each server. It works well for highly variable arrivals, but the isolation can cause server idle-ness. To improve this, we suggest a scheme to add pooling to these SITA-like systems, which can result in better performance. We propose a routing policy, SITA-JSQ, which chooses a proportion of the dedicated arrivals, originally allocated by the SITA policy with equal loads, as flexible arrivals allocated by a JSQ policy between adjacent servers. Under heavy traffic and Complete Resource Pooling conditions, the asymptotic Brownian Motion limit for the unfinished processing times processes is obtained. Using these limits, we show that SITA-JSQ gives asymptotically better performance with respect to unfinished processing times than SITA. Through simulation, we also demonstrate significant reductions in mean waiting times. Finally, we compare our approach to cycle stealing from idle servers.
Starting Page	1
Ending Page	9
File Size	637612
Page Count	9
File Format	PDF
ISBN	9780988304505
DOI	10.1109/ITC.2014.6932947
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-09
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	International Teletraffic Congress
Subject Keyword	Limiting Simulation Routing Density functional theory Servers Mathematical model Equations
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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