Optimization of overdrive signoff

T. Chan, A. Kahng, Jiajia Li, S. Nath
{"title":"Optimization of overdrive signoff","authors":"T. Chan, A. Kahng, Jiajia Li, S. Nath","doi":"10.1109/ASPDAC.2013.6509619","DOIUrl":null,"url":null,"abstract":"In modern SOC implementations, multi-mode design is commonly used to achieve better circuit performance and power across voltage-scaling, “turbo” and other operating modes. Although there are many tools for multi-mode circuit implementation, to our knowledge there is no available systematic analysis or methodology for the selection of associated signoff modes. We observe that the selection of signoff modes has significant impact on circuit area, power and performance. For example, incorrect choice of signoff voltages for required overdrive frequencies can result in a netlist with 15% suboptimality in power or 21% in area. In this paper, we propose a concept of mode dominance which can be used as a guideline for signoff mode selection. Further, we also propose efficient circuit implementation flows to optimize the selection of signoff modes within several distinct use cases. Our results show that our proposed methodology provides 5-7% improvement in performance compared to the traditional “signoff and scale” method. The signoff modes determined by our methods result in only 0.6% overhead in performance and 8% overhead in power after implementation, compared to the optimal signoff modes.","PeriodicalId":297528,"journal":{"name":"2013 18th Asia and South Pacific Design Automation Conference (ASP-DAC)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 18th Asia and South Pacific Design Automation Conference (ASP-DAC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASPDAC.2013.6509619","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6

Abstract

In modern SOC implementations, multi-mode design is commonly used to achieve better circuit performance and power across voltage-scaling, “turbo” and other operating modes. Although there are many tools for multi-mode circuit implementation, to our knowledge there is no available systematic analysis or methodology for the selection of associated signoff modes. We observe that the selection of signoff modes has significant impact on circuit area, power and performance. For example, incorrect choice of signoff voltages for required overdrive frequencies can result in a netlist with 15% suboptimality in power or 21% in area. In this paper, we propose a concept of mode dominance which can be used as a guideline for signoff mode selection. Further, we also propose efficient circuit implementation flows to optimize the selection of signoff modes within several distinct use cases. Our results show that our proposed methodology provides 5-7% improvement in performance compared to the traditional “signoff and scale” method. The signoff modes determined by our methods result in only 0.6% overhead in performance and 8% overhead in power after implementation, compared to the optimal signoff modes.
超速信号优化
在现代SOC实现中,多模式设计通常用于实现更好的电路性能和跨电压缩放,“涡轮”和其他工作模式的功率。虽然有许多工具用于多模电路的实现,但据我们所知,没有可用的系统分析或方法来选择相关的信号模式。我们观察到,信号模式的选择对电路面积、功率和性能有重要影响。例如,为所需的超速频率选择不正确的信号电压可能导致网络列表在功率上有15%的次优性或在面积上有21%的次优性。在本文中,我们提出了一个模式优势的概念,它可以作为签名模式选择的指导方针。此外,我们还提出了有效的电路实现流程,以在几个不同的用例中优化签名模式的选择。我们的结果表明,与传统的“签名和规模”方法相比,我们提出的方法提供了5-7%的性能改进。与最佳的签名模式相比,由我们的方法确定的签名模式在实现后只会导致0.6%的性能开销和8%的功耗开销。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信