Collaborative Research: CSR-AES: REEact: A Robust Execution Environment for Fragile Multicore Systems

合作研究：CSR-AES：REEact：适用于脆弱多核系统的稳健执行环境

• 批准号: 0720789
• 负责人: Mary Lou Soffa
• 金额: $ 11万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0720789&HistoricalAwards=false
• 关键词: Collaborative; Research; CSR; AES; REEact

This research focuses on the design, implementation, and evaluation of an advanced execution system, called REEact (Robust Execution Environment), which dynamically adapts an application's execution to the runtime resources landscape originating from the sources of heterogeneity in a next generation multi-core (CMP) chip.The sources of heterogeneity of interest are those that arise from process variation that impacts the maximum performance of individual cores and memory blocks, from power optimizations such as DFVS that result in varying core performance over time and core shut down due to thermal emergencies, and from reliability effects resulting in cores that must be disabled due to permanent faults that occur in the field. REEact is a type of virtual execution environment (VEE) that mediates, controls, and adapts the application's execution. It employs a combination of techniques to adapt both the hardware resources and the application's software code to accommodate the heterogeneous nature of the CMP to provide the best performance and power solution where not all of the CMP cores and/or memory blocks are available. This research impacts CMP technology by enabling the use of these architectures for high performance computing. With effective strategies for managing heterogeneity, scientists, consumers and business people will more effectively use high-performance applications, leading to greater advances in areas such as pharmaceutical development, financial market forecasting, and environmental science model¬ing. This research impacts both undergraduate and graduate students through their involvement in the research projects and through courses and course modules on CMPs.

这项研究的重点是对高级执行系统的设计，实施和评估，称为REEACT（可靠的执行环境），该系统动态地适应了应用程序的执行到源自下一代多核（CMP）芯片的异质性的运行时资源景观。诸如DFV之类的优化会导致随着时间的推移而导致核心性能变化，并且由于热的紧急情况而关闭了核心，以及由于田间发生永久性故障而导致核心的可靠性效应。 REEACCT是一种虚拟执行环境（VEE），可介导，控制和调整应用程序的执行。它采用了技术的组合来调整硬件资源和应用程序的软件代码，以适应CMP的异质性质，以提供最佳的性能和功率解决方案，而不是所有CMP内核和/或内存块都可以使用。这项研究通过促进这些架构进行高性能计算来影响CMP技术。借助管理异质性的有效策略，科学家，消费者和商人将更有效地使用高性能应用，从而在药品开发，金融市场预测和环境科学模型等领域取得更大的进步。这项研究通过参与研究项目以及CMP的课程和课程模块来影响本科和研究生。