CPA-DA: Design Techniques and Tools to Enable and Enhance Coarse-Grain Power Gating in ASIC Designs

CPA-DA：在 ASIC 设计中启用和增强粗粒度功率门控的设计技术和工具

• 批准号: 0811876
• 负责人: Massoud Pedram
• 金额: --
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0811876&HistoricalAwards=false
• 关键词: CPA; DA; Design; Techniques; Tools

PI: Pedram, MassoudProposal No: 0811876Title: CPA-DA: Design Techniques and Tools to Enable and Enhance Coarse-Grain Power Gating in ASIC DesignsInstitution: University of Southern CaliforniaThis project focuses on coarse-grain power gating in ASIC designs, which switches entire blocks/rows of standard cells. This choice is due to lower cost and greater leakage savings of coarse-grain power gating compared to its fine-grain counterpart, which inserts the header or footer in each standard cell in the ASIC design library. The project results are expected to include the following: (i) Distributed sleep transistor placement and sizing; (ii) Sleep signal scheduling to minimize the peak current demand on wakeup; (iii) Mode transition energy minimization to enable more frequent mode transitions; (iv) Local sleep signal generation for autonomous power gating; and (v) Power gating to enable multiple power modes. This proposal aims to address each of these tasks by developing algorithmic or mathematical programming solutions to solving each step and by developing a design flow and prototype software tools that enable widespread adoption of this very interesting and important technology in the ASIC design. The semiconductor industry?s $261 B in 2006 revenue does not accurately reflect its crucial role in enabling a $47 T ($61 T on a PPP basis) world economy to thrive and grow. This industry underpins the systems and technologies on which the people and governments of the world rely on for future prosperity. This industry is currently facing some extraordinary challenges, including variability of nano devices as well as excessive power dissipation in circuits and systems. In order for the industry to continue to expand and prosper, it is critical to address these challenges heads on. The proposed research takes on one of these two fundamental challenges, i.e., the ?power crisis?. The decisive impact of the proposed research will be the enablement of the CMOS scaling to continue unabated for the next 10-15 years. Moreover, the project will actively engage students both at graduate and undergraduate levels. For graduate students, active participation in the research work will enhance their creative and multidisciplinary thinking and prepare them for future independent work. The PI?s commitment of involving undergraduate students in carefully designed projects will help foster their long lasting enthusiasm in scientific research activities. Integration of research into curriculum development and classroom teaching will provide a powerful venue for the dissemination of research results that greatly compliments the traditional venues of conferences and archival journals.

PI：Pedram，Massoud 提案编号：0811876 标题：CPA-DA：在 ASIC 设计中实现和增强粗粒度功率门控的设计技术和工具机构：南加州大学该项目重点关注 ASIC 设计中的粗粒度功率门控，它会切换整个块/标准单元行。这种选择是因为与细粒度功率门控相比，粗粒度功率门控的成本更低，漏电节省更多，细粒度功率门控将页眉或页脚插入 ASIC 设计库中的每个标准单元中。项目结果预计包括以下内容： (i) 分布式睡眠晶体管的布局和尺寸； (ii) 睡眠信号调度，以最小化唤醒时的峰值电流需求； (iii) 模式转换能量最小化，以实现更频繁的模式转换； (iv) 用于自主功率门控的本地睡眠信号生成； (v) 电源门控以启用多种电源模式。该提案旨在通过开发算法或数学编程解决方案来解决每个步骤，并开发设计流程和原型软件工具，使这种非常有趣且重要的技术能够在 ASIC 设计中得到广泛采用，从而解决上述每一项任务。 2006 年半导体行业的收入为 261 B 美元，但并不能准确反映其在推动 47 T 美元（按 PPP 计算为 61 T 美元）的世界经济蓬勃发展和增长方面的关键作用。 该行业支撑着世界人民和政府未来繁荣所依赖的系统和技术。该行业目前面临着一些非凡的挑战，包括纳米器件的可变性以及电路和系统的功耗过高。为了使该行业继续扩大和繁荣，应对这些挑战至关重要。拟议的研究面临这两个基本挑战之一，即“电力危机”。拟议研究的决定性影响将是使 CMOS 微缩在未来 10-15 年内持续不减。此外，该项目将积极吸引研究生和本科生。对于研究生来说，积极参与研究工作将增强他们的创造性和多学科思维，并为他们将来的独立工作做好准备。 PI承诺让本科生参与精心设计的项目，这将有助于培养他们对科学研究活动的持久热情。将研究融入课程开发和课堂教学将为传播研究成果提供强大的场所，这极大地补充了传统的会议和档案期刊场所。