Dynamic Voltage and Frequency Scaling for real-time scheduling on a prioritized SMT processor

Kei Fujii, Hiroyuki Chishiro, Hiroki Matsutani, Nobuyuki Yamasaki

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

5 Citations (Scopus)

Abstract

Cyber Physical Systems are composed of many embedded systems which monitor and control the physical processes for tight integrations of computation and physical processes. Such embedded systems require not only real-time capabilities but also high throughput and low power consumption. High throughput is mainly achieved by parallel architectures such as Simultaneous Multithreading (SMT) and Chip Multiprocessor (CMP), and low power consumption is mainly achieved by Real-Time Dynamic Voltage and Frequency Scaling (RT-DVFS) under the real-time constraint. In this paper, we present a RT-DVFS algorithm called Hetero Efficiency to Logical Processor (HeLP) which can reduce power consumption easily and effectively in prioritized SMT processors. We also present Hetero Efficiency to Logical Processor with Temporal Migration (HeLP-TM) which applies the temporal migration technique to HeLP. Simulation results show that HeLP can reduce power consumption effectively and HeLPTM is more effective than HeLP.

Original languageEnglish
Title of host publicationProceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011
Pages9-15
Number of pages7
DOIs
Publication statusPublished - 2011 Dec 1
Event1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Co-located with the 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011 - Toyama, Japan
Duration: 2011 Aug 282011 Aug 31

Publication series

NameProceedings - 1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Workshop Held During RTCSA 2011
Volume2

Other

Other1st International Workshop on Cyber-Physical Systems, Networks, and Applications, CPSNA 2011, Co-located with the 17th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2011
CountryJapan
CityToyama
Period11/8/2811/8/31

Keywords

  • Embedded and real-time systems
  • Prioritized SMT processor
  • RMT processor
  • Real-time Dynamic Voltage and Frequency Scaling

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications

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