Multi-Core Processor Memory Contention Benchmark Analysis Case Study

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Citation of Original Publication

Simon, Tyler, and James McGalliard. “Multi-Core Processor Memory Contention Benchmark Analysis Case Study.” Presented at 35th International Computer Measurement Group Conference, Dallas, TX, December 6-11, 2009. https://ntrs.nasa.gov/citations/20090038666.

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This is a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

Multi-core processors dominate current mainframe, server, and high performance computing (HPC) systems. This paper provides synthetic kernel and natural benchmark results from an HPC system at the NASA Goddard Space Flight Center that illustrate the performance impacts of multi-core (dual- and quad-core) vs. single core processor systems. Analysis of processor design, application source code, and synthetic and natural test results all indicate that multi-core processors can suffer from significant memory subsystem contention compared to similar single-core processors.