A Shared Memory Benchmark in OpenMP

  • Authors:
  • Matthias S. Müller

  • Affiliations:
  • -

  • Venue:
  • ISHPC '02 Proceedings of the 4th International Symposium on High Performance Computing
  • Year:
  • 2002

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Abstract

The efficient use of the memory system is a key issue for the performance of many applications. A benchmark written with OpenMP is presented that measures several aspects of a shared memory system like bandwidth, memory latency and inter-thread latency. Special focus is on revealing and identifying bottlenecks and possible hierarchies in the main memory system.