Voltage scheduling problem for dynamically variable voltage processors

  • Authors:
  • Tohru Ishihara;Hiroto Yasuura

  • Affiliations:
  • Department of Computer Science and Communication Engineering Graduate School of Information Science and Electrical Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga-shi, Fukuoka, 816-8580 Ja ...;Department of Computer Science and Communication Engineering Graduate School of Information Science and Electrical Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga-shi, Fukuoka, 816-8580 Ja ...

  • Venue:
  • ISLPED '98 Proceedings of the 1998 international symposium on Low power electronics and design
  • Year:
  • 1998

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Abstract

This paper presents a model of dynamically variable voltage processor and basic theorems for power-delay optimization. A static voltage scheduling problem is also proposed and formulated as an integer linear programming (ILP) problem. In the problem, we assume that a core processor can vary its supply voltage dynamically, but can use only a single voltage level at a time. For a given application program and a dynamically variable voltage processor, a voltage scheduling which minimizes energy consumption under an execution time constraint can be found.