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

Probabilistic predicate-aware modulo scheduling

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

3 Author(s)
Smelyanskiy, M. ; Adv. Comput. Archit. Lab., Michigan Univ., Ann Arbor, MI, USA ; Mahlke, S. ; Davidson, E.S.

Predicated execution enables the removal of branches by converting segments of branching code into sequences of conditional operations. An important side effect of this transformation is that the compiler must unconditionally assign resources to predicated operations. However, a resource is only put to productive use when the predicate associated with an operation evaluates to True. To reduce this superfluous commitment of resources, we propose probabilistic predicate-aware scheduling to assign multiple operations to the same resource at the same time, thereby over-subscribing its use. Assignment is performed in a probabilistic manner using a combination of predicate profile information and predicate analysis aimed at maximizing the benefits of over-subscription in view of the expected degree of conflict. Conflicts occur when two or more operations assigned to the same resource have their predicates evaluate to True. A predicate-aware VLIW processor pipeline detects such conflicts, recovers, and correctly executes the conflicting operations. By increasing the effective throughput of a fixed set of resources, probabilistic predicate-aware scheduling provided an average of 20% performance gain in our evaluations on a 4-issue processor, and 8% gain on a 6-issue processor.

Published in:

Code Generation and Optimization, 2004. CGO 2004. International Symposium on

Date of Conference:

20-24 March 2004

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.