Technology-driven limits on DVFS controllability of multiple voltage-frequency island designs: A system-level perspective

Siddharth Garg, Diana Marculescu, Radu Marculescu, Umit Ogras

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

29 Scopus citations

Abstract

In this paper, we consider the case of network-on-chip (NoC) based multiple-processor systems-on-chip (MPSoCs) implemented using multiple voltage and frequency islands (VFIs) that rely on fine-grained dynamic voltage and frequency scaling (DVFS) for run-time control of the system power dissipation. Specifically, we present a framework to compute theoretical bounds on the performance of DVFS controllers for such systems under the impact of three important technology driven constraints: (i) reliability and temperature driven upper limits on the maximum supply voltage; (ii) inductive noise driven constraints on the maximum rate of change of voltage/frequency; and (iii) increasing manufacturing process variations. Our experimental results show that, for the benchmarks considered, any DVFS control algorithm will lose up to 87% performance, measured in terms of the number of steps required to reach a reference steady state, in the presence of maximum frequency and maximum frequency increment constraints. In addition, increasing process variations can lead to up to 60% of fabricated chips being unable to meet the specified DVFS control specifications, irrespective of the DVFS algorithm used.

Original languageEnglish (US)
Title of host publication2009 46th ACM/IEEE Design Automation Conference, DAC 2009
Pages818-821
Number of pages4
StatePublished - Nov 10 2009
Externally publishedYes
Event2009 46th ACM/IEEE Design Automation Conference, DAC 2009 - San Francisco, CA, United States
Duration: Jul 26 2009Jul 31 2009

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X

Other

Other2009 46th ACM/IEEE Design Automation Conference, DAC 2009
CountryUnited States
CitySan Francisco, CA
Period7/26/097/31/09

Keywords

  • Networks-on-chip
  • Performance bounds
  • Power management

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Modeling and Simulation

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    Garg, S., Marculescu, D., Marculescu, R., & Ogras, U. (2009). Technology-driven limits on DVFS controllability of multiple voltage-frequency island designs: A system-level perspective. In 2009 46th ACM/IEEE Design Automation Conference, DAC 2009 (pp. 818-821). [5227050] (Proceedings - Design Automation Conference).