基于ARM11 MPCore的多核间通信机制研究  

ON INTER-PROCESSOR COMMUNICATION MECHANISM BASED ON ARM11 MPCORE

作　　者：邢向磊[1] 周余[1] 都思丹[1] 

机构地区：[1]南京大学电子科学与工程系,江苏南京210093

出　　处：《计算机应用与软件》2009年第5期9-10,110,共3页Computer Applications and Software

基　　金：国家自然科学基金项目(60472026)

摘　　要：嵌入式应用中采用SMP(对称多处理)系统所面临的主要难题是多处理器内核之间的通信。对ARM11 MPCore处理器的多核间通信机制进行研究,并结合Linux-2.6.19对这一通信机制的具体实现作深入分析,并在RealView Emulation Baseboard上面进行相应的验证。实验结果表明,多核间通信机制可以使多线程之间的交互时间减小为原来的16.7%,从而提升并行计算系统的性能。Inter-processor communication is a main problem in embedded applications adopting SMP （Symmetrical multi-processing） system. Based on the study of the inter-processor communication mechanism of ARM11 MPCore processor, in this article it analyzes the implementation of this mechanism in depth with linux-2. 6.19. The corresponding validation has been done on the RealView Emulation Baseboard. The result of the experiment indicates that the inter-processor communication mechanism can reduce the interactive time of muhithreading down to 16.7% of the original, sequentially this raises the performance of the parallel computation system.

关 键 词：ARM11 MPCORE 多核间通信 LINUX 处理器间中断 

分 类 号：TP332[自动化与计算机技术—计算机系统结构] TP393[自动化与计算机技术—计算机科学与技术]