Bandwidth optimization in asynchronous NoCs by customizing link wire length

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Stevens, Kenneth
Other Author You, Junbok; Gebhardt, Daniel
Title Bandwidth optimization in asynchronous NoCs by customizing link wire length
Date 2010
Description The bandwidth requirement for each link on a network-on-chip (NoC) may differ based on topology and traffic properties of the IP cores. Available bandwidth on an asynchronous NoC link will also vary depending on the wire length between sender and receiver. We explore the benefit to NoC performance when this property is used to increase bandwidth on specific links that carry the most traffic of an SoC design. Two methods are used to accomplish this: specifying router locations on the floorplan, and adding pipeline latches on long links. Energy and latency characteristics of an asynchronous NoC are compared to a similarly-designed synchronous NoC. The results indicate that the asynchronous network has lower energy, and link-specific bandwidth optimization has improved the average packet latency. Adding pipeline latches to congested links yields the most improvement. This link-specific optimization is applicable not only to the router and network we present here, but any asynchronous NoC used in a eterogeneous SoC.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
First Page 455
Last Page 461
Language eng
Bibliographic Citation You, J., Gebhardt, D., & Stevens, K. (2010). Bandwidth optimization in asynchronous NoCs by customizing link wire length. International Conference on Computer Design, 455-61. October.
Rights Management (c)2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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Format Extent 884,946 bytes
Identifier ir-main,15263
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Date Created 2012-06-13
Date Modified 2021-05-06
ID 705564
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