Multiple Voltage and Frequency Scheduling for Power Minimization

Document Type

Article

Publication Date

6-2005

Publication Title

Journal of Systems Architecture

Volume

51

Issue

6-7

First page number:

382

Last page number:

394

Abstract

The design description for an integrated circuit may be described in terms of three domains, namely: (1) behavioral domain, (2) structural domain and (3) physical domain. These domains may be hierarchically divided into several levels of abstraction. Classically, these level of abstraction are (1) Architectural or Functional level, (2) Register-transfer level, (3) Logic level and (4) Circuit level. Some of the design problems associated with VLSI circuit design are area, speed, reliability and power consumption. With the development of portable devices, power consumption has become a dominant design consideration in the modern VLSI design area. In each of these domains there are a number of design challenges to reduce power. For instance, at the behavioral level, the freedom to choose multiple voltages and frequencies to minimize power to meet the given hard time constraints is considered as an active field of research to minimize power. Various past researches have showed that higher the level of abstraction, better the ability to address the problems associated with the design. Therefore this work proposes an algorithm that allocates both voltage and frequency simultaneously to the operations of the directed flow graph to optimize power given the time constraints. The resources required for multiple voltage-frequency scheduling is derived using the classical force directed scheduling algorithm. This algorithm has been implemented and tested on High-Level synthesis benchmarks for both non-pipelined and pipeline instances.

Keywords

Computer algorithms; Computer scheduling; Computers--Power supply; Energy consumption

Disciplines

Computer Engineering | Digital Circuits | Electrical and Electronics | Power and Energy | Signal Processing | Systems and Communications | VLSI and Circuits, Embedded and Hardware Systems

Language

English

Permissions

Use Find in Your Library, contact the author, or use interlibrary loan to garner a copy of the article. Publisher copyright policy allows author to archive post-print (author’s final manuscript). When post-print is available or publisher policy changes, the article will be deposited

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