Title
A rigorous framework for convergent net weighting schemes in timing-driven placement
Abstract
We present a rigorous framework that defines a class of net weighting schemes in which unconstrained minimization is successively performed on a weighted objective. We show that, provided certain goals are met in the unconstrained minimization, these net weighting schemes are guaranteed to converge to the optimal solution of the original timing-constrained placement problem. These are the first results that provide conditions under which a net weighting scheme will converge to a timing optimal placement. We then identify several weighting schemes that satisfy the given convergence properties and implement them, with promising results: a modification of the weighting scheme given in [11]results in consistently improved delay over the original, 4% on average, without increase in computation time.
Year
DOI
Venue
2009
10.1145/1687399.1687454
ICCAD
Keywords
Field
DocType
convergence property,certain goal,unconstrained minimization,original timing-constrained placement problem,optimal solution,computation time,timing-driven placement,rigorous framework,weighting scheme,promising result,improved delay,timing optimal placement,design automation,data mining,convergence,benchmark testing,satisfiability,integrated circuit design,np complete
Convergence (routing),NP-complete,Mathematical optimization,Weighting,Computer science,Electronic design automation,Minification,Integrated circuit design,Benchmark (computing),Computation
Conference
Citations 
PageRank 
References 
2
0.37
9
Authors
3
Name
Order
Citations
PageRank
Tony F. Chan18733659.77
Jason Cong27069515.06
Eric Radke320.37