Message-passing performance of parallel computers

  • Vladimir Getov
  • Emilio Hernández
  • Tony Hey
Workshop 16: Performance Evaluation and Prediction

DOI: 10.1007/BFb0002845

Part of the Lecture Notes in Computer Science book series (LNCS, volume 1300)
Cite this paper as:
Getov V., Hernández E., Hey T. (1997) Message-passing performance of parallel computers. In: Lengauer C., Griebl M., Gorlatch S. (eds) Euro-Par'97 Parallel Processing. Euro-Par 1997. Lecture Notes in Computer Science, vol 1300. Springer, Berlin, Heidelberg

Abstract

In this paper we investigate some of the important factors which affect the message-passing performance on parallel computers. Variations of low-level communication benchmarks that approximate realistic cases are tested and compared with the available Parkbench codes and benchmarking techniques. The results demonstrate a substantial divergence between message-passing performance measured by low-level benchmarks and message-passing performance achieved by real programs. In particular, the influence of different data types, the memory access patterns, and the communication structures of the NAS Parallel Benchmarks are analysed in detail, using performance measurements on the Cray-T3D in Edinburgh and the IBM-SP2 in Southampton.

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Copyright information

© Springer-Verlag 1997

Authors and Affiliations

  • Vladimir Getov
    • 1
    • 2
  • Emilio Hernández
    • 3
  • Tony Hey
    • 2
  1. 1.School of Computer ScienceUniversity of WestminsterLondonUK
  2. 2.Department of Electronics and Computer ScienceUniversity of SouthamptonSouthamptonUK
  3. 3.Departamento de ComputacionUniversidad Simon BolivarCaracasVenezuela

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