Towards power-elastic systems through concurrency management
Towards power-elastic systems through concurrency management
复制标题
通过并发管理实现电力弹性系统
DOI：
10.1049/iet-cdt.2010.0091
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Yakovlev
中科院分区：
文献类型：
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作者：
Fei Xia;A. Mokhov;Yu Zhou;Yifan Chen;I. Mitrani;D. Shang;D. Sokolov;A. Yakovlev
这项研究描述了功率弹性系统，这是一种设计操作受到适用功率的系统的方法。偏离了传统的低功率设计方法，该方法可最大程度地减少给定数量的计算吞吐量的功耗，功率弹性设计着重于最大程度地使用适用的功率。电力弹性系统以运行时反馈控制体系结构为中心，根据适用的功率约束来管理其计算负载，有效地将数量的功率视为要在计算单位之间分配的资源。并发管理被证明是通过理论和数值研究实施此类运行时控制的有效手段。研究了几种并发管理技术，并证明了仲裁对动态并发管理的有效性，并证明了最少的先验系统知识。开发和证明了一种新型的仲裁，称为软仲裁，特别适合于管理灵活资源（例如权力）的访问。
This study describes power-elastic systems, a method for designing systems whose operations are limited by applicable power. Departing from the traditional low-power design approach which minimises the power consumption for given amounts of computation throughput, power-elastic design focuses on the maximally effective use of applicable power. Centred on a run-time feedback control architecture, power-elastic systems manage their computation loads according to applicable power constraints, effectively viewing quantities of power as resources to be distributed among units of computation. Concurrency management is demonstrated as an effective means of implementing such run-time control, through both theoretical and numerical investigations. Several concurrency management techniques are studied and the effectiveness of arbitration for dynamic concurrency management with minimal prior system knowledge is demonstrated. A new type of arbitration, called soft arbitration, particularly suitable for managing the access of flexible resources such as power, is developed and proved.