NDLI: Floodgate: application-driven flow control in network-on-chip for many-core architectures

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Floodgate: application-driven flow control in network-on-chip for many-core architectures

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Floodgate: application-driven flow control in network-on-chip for many-core architectures

Content Provider	ACM Digital Library
Author	Huang, Yoshi Shih-Chieh Chang, Yuan-Ying Liu, Huan-Yu King, Chung-Ta Tseng, Shau-Yin
Abstract	With the prevalence of multi- and many-core architecture, network-on-chip (NoC) is becoming the main paradigm for on-chip interconnection. However, the performance of NoCs can be degraded significantly if the network flow is not controlled properly. Most previous solutions have tried to detect network congestion by monitoring the hardware status of the network switches or links. Unfortunately, such strategies rely on the backpressure of the traffic flows for congestion detection and may be too slow to respond. This paper proposes a proactive strategy which predicts the global, end-to-end traffic patterns of the running application and takes preventive flow control actions to avoid congestions. The proposed system entails an application-level prediction table for accurate traffic prediction and a packet injection scheduler for congestion avoidance. The proposed scheme is evaluated by a trace-driven simulator with synthetic traffic traces as well as a real application trace of an instance in the SPLASH-2 benchmark. The results show the superior performance of the proposed scheme with negligible execution overhead.
Starting Page	5
Ending Page	10
Page Count	6
File Format	PDF
ISBN	9781450309479
DOI	10.1145/2076501.2076503
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-12-04
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Network-on-chip Flow control Congestion control End-to-end traffic prediction
Content Type	Text
Resource Type	Article

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