{"title":"改进性能驱动路由的表查找方法","authors":"J. Lillis, Premal Buch","doi":"10.1145/277044.277146","DOIUrl":null,"url":null,"abstract":"The inaccuracy of Elmore delay for interconnect delay estimation is well-documented. However it remains a popular delay measure to drive performance optimization procedures such as wire-sizing and topology construction. This paper studies the merits of incorporating \"better-than-Elmore\" delay measures into the optimization process. The proposed delay metrics use a table-lookup method to incorporate better load modeling and approximate the effect of signal slew. We demonstrate that the proposed metrics exhibit a much narrower error distribution than Elmore delay, eliminating Elmore's frequent gross delay over-estimation. Finally we show the improvement in solution quality which can be had by incorporating the new metrics into a timing driven topology construction algorithm.","PeriodicalId":221221,"journal":{"name":"Proceedings 1998 Design and Automation Conference. 35th DAC. (Cat. No.98CH36175)","volume":"45 4","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1998-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"17","resultStr":"{\"title\":\"Table-lookup methods for improved performance-driven routing\",\"authors\":\"J. Lillis, Premal Buch\",\"doi\":\"10.1145/277044.277146\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The inaccuracy of Elmore delay for interconnect delay estimation is well-documented. However it remains a popular delay measure to drive performance optimization procedures such as wire-sizing and topology construction. This paper studies the merits of incorporating \\\"better-than-Elmore\\\" delay measures into the optimization process. The proposed delay metrics use a table-lookup method to incorporate better load modeling and approximate the effect of signal slew. We demonstrate that the proposed metrics exhibit a much narrower error distribution than Elmore delay, eliminating Elmore's frequent gross delay over-estimation. Finally we show the improvement in solution quality which can be had by incorporating the new metrics into a timing driven topology construction algorithm.\",\"PeriodicalId\":221221,\"journal\":{\"name\":\"Proceedings 1998 Design and Automation Conference. 35th DAC. (Cat. No.98CH36175)\",\"volume\":\"45 4\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"17\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings 1998 Design and Automation Conference. 35th DAC. (Cat. No.98CH36175)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/277044.277146\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings 1998 Design and Automation Conference. 35th DAC. (Cat. No.98CH36175)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/277044.277146","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Table-lookup methods for improved performance-driven routing
The inaccuracy of Elmore delay for interconnect delay estimation is well-documented. However it remains a popular delay measure to drive performance optimization procedures such as wire-sizing and topology construction. This paper studies the merits of incorporating "better-than-Elmore" delay measures into the optimization process. The proposed delay metrics use a table-lookup method to incorporate better load modeling and approximate the effect of signal slew. We demonstrate that the proposed metrics exhibit a much narrower error distribution than Elmore delay, eliminating Elmore's frequent gross delay over-estimation. Finally we show the improvement in solution quality which can be had by incorporating the new metrics into a timing driven topology construction algorithm.