Profile-driven energy reduction in network-on-chips

Feihui Li, Guangyu Chen, Mahmut Kandemir, Ibrahim Kolcu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Reducing energy consumption of a Network-on-Chip (NoC) is a critical design goal, especially for power-constrained embedded systems.In response, prior research has proposed several circuit/architectural level mechanisms to reduce NoC power consumption. This paper considers the problem from a different perspective and demonstrates that compiler analysis can be very helpful for enhancing the effectiveness of a hardware-based link power management mechanism by increasing the duration of communication links' idle periods. The proposed profile-based approach achieves its goal by maximizing the communication link reuse through compiler-directed, static message re-routing. That is, it clusters the required data communications into a small set of communication links at any given time, which increases the idle periods for the remaining communication links in the network. This helps hardware shut down more communication links and their corresponding buffers to reduce leakage power. The current experimental evaluation, with twelve data-intensive embedded applications, shows that the proposed profile-driven compiler approach reduces leakage energy by more than 35% (on average) as compared to a pure hardware-based link power management scheme.

Original languageEnglish (US)
Title of host publicationPLDI'07
Subtitle of host publicationProceedings of the 2007 ACM SIGPLAN Conference on Programming Language Design and Implementation
Pages394-404
Number of pages11
DOIs
StatePublished - Oct 30 2007
EventPLDI'07: 2007 ACM SIGPLAN Conference on Programming Language Design and Implementation - San Diego, CA, United States
Duration: Jun 10 2007Jun 13 2007

Publication series

NameProceedings of the ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI)

Other

OtherPLDI'07: 2007 ACM SIGPLAN Conference on Programming Language Design and Implementation
CountryUnited States
CitySan Diego, CA
Period6/10/076/13/07

All Science Journal Classification (ASJC) codes

  • Software

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    Li, F., Chen, G., Kandemir, M., & Kolcu, I. (2007). Profile-driven energy reduction in network-on-chips. In PLDI'07: Proceedings of the 2007 ACM SIGPLAN Conference on Programming Language Design and Implementation (pp. 394-404). (Proceedings of the ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI)). https://doi.org/10.1145/1250734.1250779