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Dynamic Power Management for Many-Core Platforms in the Dark Silicon Era: A Multi-Objective Control Approach
KTH, School of Information and Communication Technology (ICT), Industrial and Medical Electronics. University of Turku, Finland.ORCID iD: 0000-0001-8750-8242
University of Turku, Finland.
University of Turku, Finland.
KTH, School of Information and Communication Technology (ICT), Industrial and Medical Electronics.
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2015 (English)In: Low Power Electronics and Design (ISLPED), 2015 IEEE/ACM International Symposium on, IEEE conference proceedings, 2015, 219-224 p.Conference paper (Refereed)
Abstract [en]

Power management of NoC-based many-core systems with runtime application mapping becomes more challenging in the dark silicon era. It necessitates a multi-objective control approach to consider an upper limit on total power consumption, dynamic behaviour of workloads, processing elements utilization, per-core power consumption, and load on network-on-chip. In this paper, we propose a multi-objective dynamic power management method that simultaneously considers all of these parameters. Fine-grained voltage and frequency scaling, including near-threshold operation, and per-core power gating are utilized to optimize the performance. In addition, a disturbance rejecter is designed that proactively scales down activity in running applications when a new application commences execution, to prevent sharp power budget violations. Simulations of dynamic workloads and mixed time-critical application profiles show that our method is effective in honoring the power budget while considerably boosting the system throughput and reducing power budget violation, compared to the state-of-the-art power management policies.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2015. 219-224 p.
National Category
Embedded Systems Control Engineering Computer Systems
URN: urn:nbn:se:kth:diva-168992DOI: 10.1109/ISLPED.2015.7273517ISI: 000380442300037ScopusID: 2-s2.0-84958547396ISBN: 978-1-4673-8008-9OAI: diva2:819123
IEEE/ACM International Symposium on Low Power Electronics and Design (ISLPED’15),22-24 July 2015 Rome, Italy

QC 20151218

Available from: 2015-06-10 Created: 2015-06-10 Last updated: 2016-09-05Bibliographically approved

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Rahmani, Amir-MohammadYemane Weldezion, AwetTenhunen, Hannu
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