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Speed-limiting paths are critical paths that limit the performance of one or more silicon chips. This paper present a data mining methodology for analyzing speed-limiting paths extracted from AC delay test measurements. Based on data collected on 15 packaged silicon units of a four-core microprocessor design, we show that the proposed methodology can efficiently discovered actionable, design-related...
In optimizing high-performance designs, speed limiting paths (speedpaths) impact the performance and power trade-off. Timing tools attempt to model and capture all such paths on a chip. Due to the high performance nature of these designs, critical paths predicted by the timing tools often do not match the actual speedpaths found on silicon chips. Early silicon data therefore is used to identify the...
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