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: 0720483
• 负责人: Bruce Childers
• 金额: $ 4万
• 依托单位: University of Pittsburgh
• 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=0720483&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.

这项研究的重点是设计、实现和评估称为 REEact（鲁棒执行环境）的高级执行系统，该系统动态地使应用程序的执行适应源自下一代多核中异构源的运行时资源环境（ CMP）芯片。令人感兴趣的异质性来源是那些影响各个核心和内存块最大性能的工艺变化、DFVS 等功率优化（导致核心性能随时间和核心关闭而变化）由于热紧急情况以及由于现场发生的永久性故障而必须禁用内核的可靠性影响，REEact 是一种协调、控制和调整应用程序执行的虚拟执行环境 (VEE)。这项研究结合了调整硬件资源和应用程序软件代码的技术，以适应 CMP 的异构性质，从而在并非所有 CMP 内核和/或内存块都可用的情况下提供最佳性能和功耗解决方案。通过使用这些架构进行高性能计算，科学家、消费者和商业人士将更有效地管理高性能应用程序的使用，从而在药物开发、金融市场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 的课程和课程模块对本科生和研究生产生影响。