Temperature regulation in multicore processors using adjustable-gain integral controllers

K. Rao; W. Song; S. Yalamanchili; Y. Wardi

doi:10.1109/CCA.2015.7320717

Temperature regulation in multicore processors using adjustable-gain integral controllers

K. Rao, W. Song, S. Yalamanchili, Y. Wardi

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

This paper considers the problem of temperature regulation in multicore processors by dynamic voltage-frequency scaling. We propose a feedback law that is based on an integral controller with adjustable gain, designed for fast tracking convergence in the face of model uncertainties, time-varying plants, and tight computing-timing constraints. Moreover, unlike prior works we consider a nonlinear, time-varying plant model that trades off precision for simple and efficient on-line computations. Cycle-level, full system simulator implementation and evaluation illustrates fast and accurate tracking of given temperature reference values, and compares favorably with fixed-gain controllers.

Original language	English
Title of host publication	2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	810-815
Number of pages	6
ISBN (Electronic)	9781479977871
DOIs	https://doi.org/10.1109/CCA.2015.7320717
Publication status	Published - 2015 Nov 4
Event	IEEE Conference on Control and Applications, CCA 2015 - Sydney, Australia Duration: 2015 Sept 21 → 2015 Sept 23

Publication series

Name	2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings

Other

Other	IEEE Conference on Control and Applications, CCA 2015
Country/Territory	Australia
City	Sydney
Period	15/9/21 → 15/9/23

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

All Science Journal Classification (ASJC) codes

Control and Systems Engineering

Access to Document

10.1109/CCA.2015.7320717

Cite this

Rao, K., Song, W., Yalamanchili, S., & Wardi, Y. (2015). Temperature regulation in multicore processors using adjustable-gain integral controllers. In 2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings (pp. 810-815). Article 7320717 (2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CCA.2015.7320717

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abstract = "This paper considers the problem of temperature regulation in multicore processors by dynamic voltage-frequency scaling. We propose a feedback law that is based on an integral controller with adjustable gain, designed for fast tracking convergence in the face of model uncertainties, time-varying plants, and tight computing-timing constraints. Moreover, unlike prior works we consider a nonlinear, time-varying plant model that trades off precision for simple and efficient on-line computations. Cycle-level, full system simulator implementation and evaluation illustrates fast and accurate tracking of given temperature reference values, and compares favorably with fixed-gain controllers.",

author = "K. Rao and W. Song and S. Yalamanchili and Y. Wardi",

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Rao, K, Song, W, Yalamanchili, S & Wardi, Y 2015, Temperature regulation in multicore processors using adjustable-gain integral controllers. in 2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings., 7320717, 2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 810-815, IEEE Conference on Control and Applications, CCA 2015, Sydney, Australia, 15/9/21. https://doi.org/10.1109/CCA.2015.7320717

Temperature regulation in multicore processors using adjustable-gain integral controllers. / Rao, K.; Song, W.; Yalamanchili, S. et al.
2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. p. 810-815 7320717 (2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - This paper considers the problem of temperature regulation in multicore processors by dynamic voltage-frequency scaling. We propose a feedback law that is based on an integral controller with adjustable gain, designed for fast tracking convergence in the face of model uncertainties, time-varying plants, and tight computing-timing constraints. Moreover, unlike prior works we consider a nonlinear, time-varying plant model that trades off precision for simple and efficient on-line computations. Cycle-level, full system simulator implementation and evaluation illustrates fast and accurate tracking of given temperature reference values, and compares favorably with fixed-gain controllers.

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Rao K, Song W, Yalamanchili S, Wardi Y. Temperature regulation in multicore processors using adjustable-gain integral controllers. In 2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. p. 810-815. 7320717. (2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings). doi: 10.1109/CCA.2015.7320717

Temperature regulation in multicore processors using adjustable-gain integral controllers

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