CSR: Small: Managing Multicore Energy for Emerging Applications and Devices

CSR：小型：管理新兴应用和设备的多核能源

• 批准号: 1319353
• 负责人: Sandhya Dwarkadas
• 金额: $ 43.37万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2018-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1319353&HistoricalAwards=false
• 关键词: CSR; Small; Managing; Multicore; Energy

Multicore systems-on-a-chip have permeated every segment of thedigital market, from servers and supercomputers, to desktops and smartphone/mobile devices. Innovative applications continue to emerge thatintegrate user interactivity via mobile devices with the power ofhigh-end computation and large-scale storage. These applications tendto demonstrate dynamic and diverse execution behaviors, requiringclose tracking in order to manage resource consumption. Inherentapplication behavior variations and resource requirements, coupledwith complex interactions due to contention for shared resources,present new challenges for efficient, dependable, and sustainableadvances in computing and information technologies.This project will develop foundational system mechanisms to manageindividual cores, memory, and power/energy consumption onmulticore-based systems, and explore resource allocation policies thatuse these mechanisms. A new online multicore power model will allowpower and energy tracking at a fine-grain level, combining availablehardware-based power measurements with event-based modeling andattribution of power for shared resources. Accuracy will be improvedvia coarse-grain measurement-triggered online model recalibration. Anew operating system mechanism, power containers, will be developed toallow application-defined boundaries for resource tracking, breakingfrom the traditional thread and process boundary resource tracking instate-of-the-art operating systems. Further optimizations will beexplored to lower the overhead of resource tracking, allowing onlinepower accounting to scale to large core and resource counts. Finally,new techniques will be developed to enable use of the power containersto control and isolate power usage in an application-defined manner.This project will enhance the power protection, energy efficiency, anddependability of multicore-based computer systems. The techniquesdeveloped can be broadly applied to emerging dynamic applications indata centers, desktops, and mobile devices. In particular, powercontainers will identify and mitigate (either malicious orunintentional) power anomalies (execution that results in unusuallyhigh power consumption), in both high-end servers and multi-core andmulti-accelerator smart phones. The success of this project willcontribute to the long-term sustainability of the world's fastevolving digital economy and society.

从服务器和超级计算机到台式机和智能手机/移动的设备，多核系统芯片已经渗透到数字市场的各个领域。 创新的应用程序不断涌现，将用户通过移动的设备的交互性与高端计算和大规模存储的能力相结合。 这些应用程序往往表现出动态和多样化的执行行为，需要密切跟踪，以管理资源消耗。 固有的应用程序行为变化和资源需求，加上由于共享资源的竞争而产生的复杂交互，为计算和信息技术的高效、可靠和可持续发展提出了新的挑战。本项目将开发基础系统机制，以管理基于多核系统的单个核、内存和功率/能源消耗，并探索使用这些机制的资源分配策略。 新的在线多核功率模型将允许细粒度级别的功率和能量跟踪，将基于硬件的可用功率测量与基于事件的建模和共享资源的功率数据相结合。精度将通过粗粒度测量触发的在线模型重新校准来提高。 将开发一种新的操作系统机制，即Power容器，以允许应用程序定义的资源跟踪边界，打破传统的线程和进程边界资源跟踪在最先进的操作系统。 进一步的优化将被探索，以降低资源跟踪的开销，允许onlinepower会计扩展到大的核心和资源计数。 最后，将开发新技术，使电源容器能够以应用程序定义的方式控制和隔离电源使用。该项目将增强基于多核计算机系统的电源保护、能源效率和可靠性。 所开发的技术可广泛应用于数据中心、桌面和移动的设备中新兴的动态应用。 特别是，powercontainers将识别和缓解（恶意或无意的）电源异常（导致异常高功耗的执行），在高端服务器和多核和多加速器智能手机中。 该项目的成功将有助于世界上快速发展的数字经济和社会的长期可持续性。

项目成果

MAPPER: Managing Application Performance via Parallel Efficiency Regulation

• DOI: 10.1145/3501767
• 发表时间: 2022-06-01
• 期刊: ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION
• 影响因子: 1.6
• 作者: Srikanthan，Sharanyan;Chakraborti，Sayak;Das，Sandhya Dwarka
• 通讯作者: Das，Sandhya Dwarka