David I. August
Professor in the Department of Computer Science, Princeton University
Affiliated with the Department of Electrical Engineering, Princeton University
Ph.D. May 2000, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign

Office: Computer Science Building Room 221
Email: august@princeton.edu
Phone: (609) 258-2085
Fax: (609) 964-1699
Administrative Assistant: Pamela DelOrefice, (609) 258-5551

Front Page Publication List (with stats) Curriculum Vitae (PDF) The Liberty Research Group


The Liberty Simulation Environment: A Deliberate Approach to High-Level System Modeling [abstract] (ACM DL, PDF)
Manish Vachharajani, Neil Vachharajani, David A. Penry, Jason A. Blome, Sharad Malik, and David I. August
ACM Transactions on Computer Systems (TOCS), Volume 24, Number 3, August 2006.
Accept Rate: 16%

In digital hardware system design, the quality of the product is directly related to the number of meaningful design alternatives properly considered. Unfortunately, existing modeling methodologies and tools have properties which make them less than ideal for rapid and accurate design-space exploration. This article identifies and evaluates the shortcomings of existing methods to motivate the Liberty Simulation Environment (LSE). LSE is a high-level modeling tool engineered to address these limitations, allowing for the rapid construction of accurate high-level simulation models. LSE simplifies model specification with low-overhead component-based reuse techniques and an abstraction for timing control. As part of a detailed description of LSE, this article presents these features, their impact on model specification effort, their implementation, and optimizations created to mitigate their otherwise deleterious impact on simulator execution performance.