面向低能耗的非精确异构多核上的运行时技术

发布时间：2018-05-26 21:42

  本文选题：非精确计算 + 异构多核　； 参考：《高技术通讯》2014年08期

【摘要】：为降低异构多核处理器芯片的能耗,为非精确异构多核平台提出了一种基于分层调节器的硬件抽象和搜索方法。该方法首先将异构多核硬件及其非精确参数抽象为树状结构,其次使用能效分数标定调节器树,最后在线搜索其路径,为程序的每个算法获得最佳的硬件及其参数配置。实验表明,该方法能够在满足用户精确度需求的前提下,相比于精确CPU核,平均降低40%的能耗,且能够很好地适应精确度需求的变化。
[Abstract]:In order to reduce the energy consumption of heterogeneous multicore processor, a hardware abstraction and searching method based on hierarchical regulator is proposed for inexact heterogeneous multi-core platform. The method firstly abstracts heterogeneous multi-core hardware and its inexact parameters into a tree structure, then uses energy efficiency scores to calibrate the regulator tree, and finally searches its path online to obtain the best hardware and parameter configuration for each algorithm of the program. The experimental results show that the proposed method can reduce the energy consumption by 40% compared with the accurate CPU kernel on the premise of satisfying the user's accuracy requirements, and it can adapt to the change of the accuracy requirement.
【作者单位】： 中国科学院计算机体系结构国家重点实验室;中国科学院计算技术研究所;中国科学院大学;
【基金】：核高基重大专项(2009ZX01028-002-003,2009ZX01029-001-003,2010ZX01036-001-002) 863计划(2012AA012202,2012AA010901) 国家自然科学基金(61003064,61100163,61133004,61222204,61221062,61303158) 中科院先导专项(XDA06010403)资助项目
【分类号】：TP332
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本文编号：1938998