NDLI: A tale of two nets: studies of wirelength progression in physical design

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A tale of two nets: studies of wirelength progression in physical design

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Constant impedance scaling paradigm for interconnect synthesis

A tale of two nets: studies of wirelength progression in physical design

Content Provider	ACM Digital Library
Author	Reda, Sherief Kahng, Andrew B.
Abstract	At every stage in physical design, engineers are faced with many different objectives and tools to develop, optimize, and evaluate their design. Each choice of a tool or an objective to optimize can potentially lead to a completely different final physically designed circuit. Furthermore, some of the objectives optimized by the tools are not necessarily the best or right objectives, but rather compromised objectives; for example, placers optimize the half-perimeter wirelength rather than the routed wirelength. The contributions of this paper are twofold. First, we define and use a metric to measure the consistency of optimizing wirelength during the different stages of physical design. Our main technique is based on tracing the relative lengths of two nets - or more accurately pairs of nets - as they progress through the physical design flow. Second, we propose a simple method to quantify the similarity between the results of different tools. Our empirical results point out to the physical design stages where vulnerability can occur from optimizing compromised objectives.
Starting Page	17
Ending Page	24
Page Count	8
File Format	PDF
ISBN	1595932550
DOI	10.1145/1117278.1117282
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2006-03-04
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Similarity Consistency Benchmarking Wirelength Placer suboptimality
Content Type	Text
Resource Type	Article

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