A real-time, energy-efficient system software suite for heterogeneous multicore platforms

Shih Hao Hung, Chi Sheng Shin, Tei Wei Kuo, Chia Heng Tu, Che Wei Chang

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

5 Citations (Scopus)

Abstract

Heterogeneous multicore systems have become the trend for the embedded market due to its advantage of power/performance over traditional designs. However, monitoring the workload, scheduling the tasks, and managing the energy consumption to enable energy-efficient, real-time applications are increasingly challenging on such systems as both the applications and systems become complex. In this paper, we introduce a comprehensive approach to address the key problems and accelerate the design of a heterogeneous multicore embedded system by providing a suite of energy-aware system software with tightly coupled real-time support and performance/power modeling facilities. We start with a rapid full system modeling/simulation framework to characterize the application workload, design energy-saving algorithms, and verify if performance requirements are met by hardware specifications during the early design stage. With special considerations on today's multicore embedded systems, we developed several key components and integrated them as a system software suite: a portable, efficient library to support inter-core communications and multicore programming, a lightweight kernel for dynamically monitoring and sharing the workload among the processor cores, and a dynamic voltage and frequency scaling scheme to adjust the setting of the processors to save energy. The system software has been implemented on the PAC Duo system as a case study, with experimental results to demonstrate the effectiveness of the proposed approach. This paper discusses the novel techniques included in this system software and shares the lessons that we have learned from this work.

Original languageEnglish
Title of host publicationCODES+ISSS'12 - Proceedings of the 10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, Co-located with ESWEEK
Pages23-32
Number of pages10
DOIs
Publication statusPublished - 2012 Nov 19
Event10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, CODES+ISSS 2012, Co-located with 8th Embedded Systems Week, ESWEEK 2012 - Tampere, Finland
Duration: 2012 Oct 72012 Oct 12

Publication series

NameCODES+ISSS'12 - Proceedings of the 10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, Co-located with ESWEEK

Other

Other10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, CODES+ISSS 2012, Co-located with 8th Embedded Systems Week, ESWEEK 2012
CountryFinland
CityTampere
Period12-10-0712-10-12

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Software

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    Hung, S. H., Shin, C. S., Kuo, T. W., Tu, C. H., & Chang, C. W. (2012). A real-time, energy-efficient system software suite for heterogeneous multicore platforms. In CODES+ISSS'12 - Proceedings of the 10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, Co-located with ESWEEK (pp. 23-32). (CODES+ISSS'12 - Proceedings of the 10th ACM International Conference on Hardware/Software-Codesign and System Synthesis, Co-located with ESWEEK). https://doi.org/10.1145/2380445.2380456