NDLI: Transformational placement and synthesis

Content Provider	IEEE Xplore Digital Library
Author	Donath, W. Kudva, P. Stok, L. Villarrubia, P. Reddy, L. Sullivan, A.
Copyright Year	2000
Description	Author affiliation: IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA (Donath, W.)
Abstract	Novel methodology and algorithms to seamlessly integrate logic synthesis and physical placement through a transformational approach are presented. Contrary to most placement algorithms that minimize a global cost function based on an abstract representation of the design, we decomposed the placement function into a set of transforms and coupled them directly with incremental timing, noise, and/or power analyzers. This coupling results in a direct and more accurate feedback on optimizations for placement actions. These placement transforms are then integrated with traditional logic synthesis transforms leading to a converging set of optimizations based on the concurrent manipulation of boolean, electrical, as well as physical data. Experimental results indicate that the proposed approach creates an efficient converging design flow that eliminates placement and synthesis iteration. It results in timing improvements, and maintains other global placement measures such as wire congestion and wire length. The flexibility of the transformational approach allows us to easily add, extend and support more sophisticated algorithms that involve critical as well as non-critical regions and target a variety of metrics including noise, yield and manufacturability:.
Starting Page	194
Ending Page	201
File Size	70873
Page Count	8
File Format	PDF
ISBN	0769505376
DOI	10.1109/DATE.2000.840038
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-03-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Timing Feedback Logic Wire Algorithm design and analysis Cost function Boolean functions Length measurement Power measurement Noise measurement
Content Type	Text
Resource Type	Article

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