Predictive dynamic thermal and power management for heterogeneous mobile platforms

Gaurav Singla, Gurinderjit Kaur, Ali K. Unver, Umit Ogras

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

64 Scopus citations

Abstract

Heterogeneous multiprocessor systems-on-chip (MPSoCs) powering mobile platforms integrate multiple asymmetric CPU cores, a GPU, and many specialized processors. When the MPSoC operates close to its peak performance, power dissipation easily increases the temperature, hence adversely impacts reliability. Since using a fan is not a viable solution for hand-held devices, there is a strong need for dynamic thermal and power management (DTPM) algorithms that can regulate temperature with minimal performance impact. This paper presents a DTPM algorithm based on a practical temperature prediction methodology using system identification. The DTPM algorithm dynamically computes a power budget using the predicted temperature, and controls the types and number of active processors as well as their frequencies. Experiments on an octa-core big. LITTLE processor and common Android apps demonstrate that the proposed technique predicts temperature within 3% accuracy, while the DTPM algorithm provides around 6× reduction in temperature variance, and as large as 16% reduction in total platform power compared to using a fan.

Original languageEnglish (US)
Title of host publicationProceedings -Design, Automation and Test in Europe, DATE
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages960-965
Number of pages6
Volume2015-April
ISBN (Print)9783981537048
StatePublished - Apr 22 2015
Event2015 Design, Automation and Test in Europe Conference and Exhibition, DATE 2015 - Grenoble, France
Duration: Mar 9 2015Mar 13 2015

Other

Other2015 Design, Automation and Test in Europe Conference and Exhibition, DATE 2015
CountryFrance
CityGrenoble
Period3/9/153/13/15

ASJC Scopus subject areas

  • Engineering(all)

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    Singla, G., Kaur, G., Unver, A. K., & Ogras, U. (2015). Predictive dynamic thermal and power management for heterogeneous mobile platforms. In Proceedings -Design, Automation and Test in Europe, DATE (Vol. 2015-April, pp. 960-965). [7092527] Institute of Electrical and Electronics Engineers Inc..