Cart (Loading....) | Create Account
Close category search window
 

Static and dynamic variable voltage scheduling algorithms for real-time heterogeneous distributed embedded systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Jiong Luo ; Dept. of Electr. Eng., Princeton Univ., NJ, USA ; Jha, N.

This paper addresses the problem of static and dynamic variable voltage scheduling of multi-rate periodic task graphs (i.e., tasks with precedence relationships) and aperiodic tasks in heterogeneous distributed real-time embedded systems. Such an embedded system may contain general-purpose processors, field-programmable gate arrays (FPGAs) and application-specific integrated circuits (ASICs). Variable voltage scheduling is performed only on general-purpose processors. The static scheduling algorithm constructs a variable voltage schedule via heuristics based on critical path analysis and task execution order refinement. The algorithm redistributes the slack in the initial schedule and refines task execution order in an efficient manner. The variable voltage schedule guarantees all the hard deadlines and precedence relationships of periodic tasks. The dynamic scheduling algorithm is also based on an initially valid static schedule. The objective of the on-line scheduling algorithm is to provide best-effort service to soft aperiodic tasks, as well as to reduce the system power consumption by determining clock frequencies (and correspondingly supply voltages) for different tasks at run-time, while still guaranteeing the deadlines and precedence relationships of hard real-time periodic tasks

Published in:

Design Automation Conference, 2002. Proceedings of ASP-DAC 2002. 7th Asia and South Pacific and the 15th International Conference on VLSI Design. Proceedings.

Date of Conference:

2002

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.