By Topic

Improving the efficiency of circuit-to-BDD conversion by gate and input ordering

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)
Aloul, F.A. ; Dept. of Electr. & Comput. Eng., Michigan Univ., Dearborn, MI, USA ; Markov, I.L. ; Sakallah, K.A.

Boolean functions are fundamental to synthesis and verification of digital logic, and compact representations of Boolean functions have great practical significance. Popular representations, such as CNF, DNF, circuits and ROBDDs [4], offer different advantages and are preferred for different tasks. Conversion between those representations is common, especially when one is used to represent the input and another speeds up relevant algorithms. Our work addresses the construction of ROBDDs that represent outputs of a given Boolean circuit. It is used in synthesis and verification. Earlier works (Fujita, Fujisawa, and Kawato, 1988. Malik et al., 1988.) proposed ordering circuit inputs and gates by graph traversals. We contribute orderings based on circuit partitioning and placement, leveraging the progress in recursive bisection and multi-level min-cut partitioning achieved in late 1990s. Our empirical results show that the proposed orderings based on circuit partitioning and placement are more successful than straightforward DFS and BFS, as well as related heuristics.

Published in:

Computer Design: VLSI in Computers and Processors, 2002. Proceedings. 2002 IEEE International Conference on

Date of Conference: