7519

Automatic NUMA Characterization using Cbench

Ryan Braithwaite, Wu-chun Feng, Patrick McCormick
Los Alamos National Laboratory, Los Alamos, NM, USA
3rd ACM/SPEC International Conference on Performance Engineering (ICPE), 2012

@article{braithwaite2012automatic,

   title={Automatic NUMA Characterization using Cbench},

   author={Braithwaite, R. and Feng, W. and McCormick, P.},

   year={2012}

}

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Clusters of seemingly homogeneous compute nodes are increasingly heterogeneous within each node due to replication and distribution of node-level subsystems. This intra-node heterogeneity can adversely affect program execution performance by inflicting additional data-access costs when accessing non-local data. In this work-in-progress paper, we present extensions to the Cbench Scalable Testing Framework for analyzing main memory and PCIe data-access performance in modern NUMA architectures. The information provided by this tool will be of use for task scheduling, performance modeling, and evaluation of NUMA systems.
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