NDLI: ECO-system: Embracing the Change in Placement

Content Provider	IEEE Xplore Digital Library
Author	Roy, J.A. Markov, I.L.
Copyright Year	2007
Description	Author affiliation: Dept. of EECS, Michigan Univ., Ann Arbor, MI (Roy, J.A.; Markov, I.L.)
Abstract	In a realistic design flow, circuit and system optimizations must interact with physical aspects of the design. For example, improvements in timing and power may require replacing large modules with variants that have different power/delay trade-off, shape and connectivity. New logic may be added late in the design flow, subject to interconnect optimization, To support such flexibility in design flows we develop a robust system for performing engineering change orders (ECOs). In contrast with existing stand-alone tools that offer poor interfaces to the design flow and cannot handle a full range of modern VLSI layouts, our ECO-system reliably handles fixed objects and movable macros in instances with widely varying amounts of whitespace. It detects geometric regions and sections of the netlist that require modification and applies an adequate amount of change in each case. Given a reasonable initial placement, it applies minimal changes, but is capable of re-placing large regions to handle pathological cases. ECO-system can be used in the range from high-level synthesis, to physical synthesis and detail placement.
Starting Page	147
Ending Page	152
File Size	1046129
Page Count	6
File Format	PDF
ISBN	1424406293
DOI	10.1109/ASPDAC.2007.357977
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-23
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Design optimization Circuits and systems Timing Delay Shape Logic design Integrated circuit interconnections Power system interconnection Robustness Reliability engineering
Content Type	Text
Resource Type	Article

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