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amask:A Tool for Evaluating Affinity Masks in Many-Core Processors

机译:amask:用于评估多核处理器中的亲和力掩码的工具

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摘要

Today's multi- and many-core systems have NUMA nodes, sockets, tiles, cores, and Symmetric Multi-Threading (SMT) which may require complicated affinity settings to optimally map processes to processors. In many-core systems with hundreds of processors, evaluating the affinity of a single process by surveying a list of processor numbers is time consuming and error prone. Comparing two or more process affinities is even more troublesome. The amask tool displays all process affinities as an easy-to-read matrix of processor-ids versus ranks and/or thread-ids, allowing researchers to quickly confirm default settings and the effect of manipulating affinity, either before or during a parallel execution (through a stand-alone executable or API, respectively).
机译:当今的多核和多核系统具有NUMA节点,套接字,磁贴,内核和对称多线程(SMT),这可能需要复杂的相似性设置才能将进程最佳地映射到处理器。在具有数百个处理器的多核系统中,通过调查处理器编号列表来评估单个进程的亲和力既费时又容易出错。比较两个或多个过程亲和力甚至更加麻烦。 amask工具将所有过程亲和性显示为易于理解的处理器ID与等级和/或线程ID的矩阵,使研究人员可以在并行执行之前或期间快速确认默认设置和操纵亲和力的效果(分别通过独立的可执行文件或API)。

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