访存与用户行为敏感的MPSoC应用映射

发布时间：2018-01-03 07:05

本文关键词：访存与用户行为敏感的MPSoC应用映射　出处：《电子学报》2015年04期 　论文类型：期刊论文

【摘要】：应用映射是MPSo C设计中的关键问题,针对多应用负载的MPSo C,提出一种访存与用户行为敏感的动态映射策略,该策略根据应用的数据访问特征区分热点与非热点应用,并对用户行为进行建模,根据用户行为模型,进一步在运行时区分关键与非关键应用.对每个进入系统的应用,按照应用的热点及关键性分类动态选择在线映射算法,让热点应用围绕存储器布局,非热点应用尽量避免占用存储器附近的资源;对关键应用,最小化应用内通信开销和链路竞争,对非关键应用,最小化应用间通信开销和链路竞争.实验表明,与单纯考虑访存或用户行为的映射策略相比,本文策略能够降低系统整体的通信能耗.
[Abstract]:Application mapping is a key problem in MPSo C design. For multi-application load MPSo C, a dynamic mapping strategy of memory access and user behavior sensitivity is proposed. The strategy distinguishes hot and non-hot applications according to the application's data access features, and models user behavior according to user behavior model. The key and non-critical applications are further distinguished at runtime. For each application entering the system, the online mapping algorithm is dynamically selected according to the application hot spots and critical classification, so that the hot spot applications around the memory layout. Non-hotspot applications try to avoid taking up the resources near the memory; For key applications, communication overhead and link competition are minimized, while for non-critical applications, inter-application communication overhead and link competition are minimized. The strategy of this paper can reduce the overall communication energy consumption of the system.
【作者单位】：北京理工大学计算机学院;北京市计算中心;
【基金】：国家自然科学基金(No.61300011,No.61300010)
【分类号】：TP332
【正文快照】： 1引言多处理器片上系统(MPSo C)已成为嵌入式系统设计的主流,随着MPSo C集成的处理单元(Processing Ele-ment,PE)个数越来越多,其处理能力变得越来越强,促使了多应用负载MPSo C的广泛应用,如智能手机、复杂箭载、星载系统等.任务映射和调度在多应用负载的MPSo C系统设计中起十

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