By Topic

Energy efficient asymmetrically ported register files

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
$33 $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)
Aneesh Aggarwal ; ECE Dept., Maryland Univ., College Park, MD, USA ; M. Franklin

Power consumption in the register file (RF) forms a considerable fraction of the total power consumption in a chip. With increasing instruction window sizes and issue widths, RF power consumption will suffer a significantly large growth. Using the fact that many of the register values are small and require only a small number of bits for representation, we propose a novel asymmetrically ported RF (to reduce RF power consumption), in which some of the ports can only read/write small-sized values. We experiment with both monolithic and partitioned versions of asymmetrically ported RFs. The power savings in the RF with partitioned asymmetrically ported RF reach as high as 60%. These reductions in RF power consumption come with about 40% improvement in RF access-time and a negligible impact on IPC (instructions per cycle).

Published in:

Computer Design, 2003. Proceedings. 21st International Conference on

Date of Conference:

13-15 Oct. 2003