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A fast algorithm for minimizing the Elmore delay to identified critical sinks

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3 Author(s)
Borah, Manjit ; Cadence Design Syst. Inc., San Jose, CA, USA ; Owens, R.M. ; Irwin, M.J.

A routing algorithm that generates a Steiner route for a set of sinks with near optimal Elmore delay to the critical sink is presented. The algorithm outperforms the best existing alternative for Elmore-delay-based critical sink routing. With no critical sinks present, the algorithm produces routes comparable to the best previously existing Steiner router. Since performance-oriented layout generators employ iterative techniques that require a large number of calls to the routing algorithm for layout evaluation, a fast algorithm for routing is desirable. The algorithm presented here has a fast (O(n2), where n is the number of points) and practical implementation using simple data structures and techniques

Published in:

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:16 ,  Issue: 7 )

Date of Publication:

Jul 1997

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