By Topic

Investigating the effect of voltage-switching on low-energy task scheduling in hard real-time 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)
Swaminathan, V. ; Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA ; Chakrabarty, K.

We investigate the effect of voltage-switching on task execution times and energy consumption for dual-speed hard real-time systems, and present a new approach for scheduling workloads containing periodic tasks. Our method minimizes the total energy consumed by the task set and guarantees that the deadline for every task is met. We present a mixed-integer linear programming model for the NP-complete scheduling problem and solve it for moderate-sized problem instances using a public-domain solver. For larger task sets, we present a novel extended-low-energy earliest-deadline-first (E-LEDF) scheduling algorithm and apply it to two real-life task sets. Our results show that energy can be conserved in embedded real-time systems using energy-aware task scheduling. We also show that switching times have a significant effect on the energy consumed in hard real-time systems

Published in:

Design Automation Conference, 2001. Proceedings of the ASP-DAC 2001. Asia and South Pacific

Date of Conference: