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Implementation and Evaluation of OpenMP for Hitachi SR8000

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High Performance Computing (ISHPC 2000)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1940))

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Abstract

This paper describes the implementation and evaluation of the OpenMP compiler designed for the Hitachi SR8000 Super Technical Server. The compiler performs parallelization for the shared memory multiprocessors within a node of SR8000 using the synchronization mechanism of the hardware to perform high-speed parallel execution. To create an optimized code, the compiler can perform optimizations across inside and outside of a PARALLEL region or can produce a code optimized for a fixed number of processors according to the compile option. For user’s convenience, it supports combination of OpenMP and automatic parallelization or Hitachi proprietary directive and also supports reporting diagnostic messages which help user’s parallelization. We evaluate our compiler by parallelizing NPB2.3-serial benchmark with OpenMP. The result shows 5.3 to 8.0 times speedup on 8 processors.

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References

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Author information

Authors and Affiliations

  1. Software Development Division, Hitachi, Ltd., 244-0801, Yokohama, Kanagawa, Japan

    Yasunori Nishitani, Kiyoshi Negishi & Eiji Nunohiro

  2. Systems Development Laboratry, Hitachi, Ltd., 215-0013, Kawasaki, Kanagawa, Japan

    Hiroshi Ohta

Authors
  1. Yasunori Nishitani
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  2. Kiyoshi Negishi
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  3. Hiroshi Ohta
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  4. Eiji Nunohiro
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Editor information

Editors and Affiliations

  1. Departamento de Arquitectura de Computadores, Universidad Politecnica de Catalunya, Spain

    Mateo Valero

  2. Department of Information and Computer Sciences, Nara Women’s University, Japan

    Kazuki Joe

  3. Institute of Industrial Science Center for Conceptual Information Processing Research, University of Tokyo, Japan

    Masaru Kitsuregawa

  4. Graduate School of Engineering Electrical Engineering Department, University of Tokyo, Japan

    Hidehiko Tanaka

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© 2000 Springer-Verlag Berlin Heidelberg

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Nishitani, Y., Negishi, K., Ohta, H., Nunohiro, E. (2000). Implementation and Evaluation of OpenMP for Hitachi SR8000. In: Valero, M., Joe, K., Kitsuregawa, M., Tanaka, H. (eds) High Performance Computing. ISHPC 2000. Lecture Notes in Computer Science, vol 1940. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-39999-2_38

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  • DOI: https://doi.org/10.1007/3-540-39999-2_38

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-41128-4

  • Online ISBN: 978-3-540-39999-5

  • eBook Packages: Springer Book Archive

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