多核并行计算中Cache伪共享的研究

摘要

随着多核计算的快速发展,多核并行计算是多核高性能优势的主要利用之一,而高速缓存在提高计算机性能上有着十分重要的作用.本文首先介绍Cache的基本结构,接着分析在数值型的并行计算中遇到的Cache伪共享问题,最后针对问题给出相应的解决方案,并以具体的实例验证了解决方案的可行性.%With the rapid development of multi-core computing, multi-core parallel computing is one of the main use of multi-core high-performance advantages, and high speed cache is a very important role to improve computer performance. This paper describes the basic structure of the cache at first. Then analyses the problem of cache false sharing in numerical parallel computation. Finally, a corresponding solution is given for the problem. And the feasibility of the solution is verified by the specific instance.