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International Conference on High-Performance Computing and Networking

HPCN-Europe 2000: High Performance Computing and Networking pp 564–567Cite as

Implementation of Nested Grid Scheme for Global Magnetohydrodynamic Simulations of Astrophysical Rotating Plasmas

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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1823))

Abstract

We have developed an astrophysical rotating plasma simulator by which we can simulate global dynamics of magnetized rotating plasmas in 2 and 3 dimensions. One of the major applications of this simulator is a differentially rotating disk around a black hole (accretion disk) which is believed to be the central ‘engine’ of active galactic nuclei(AGN) such as quasars. We incorporated nested-grid scheme in order to simulate spacial scale ranging from the observed 100 pc (∼ 1018 m) torus of AGN to the central region of the accretion disk (∼ 1013 m ). By the calculation of 3 CPU vector-parallelized code we get total CPU time of calculation about 1/2 that of non-parallelized code.

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References

  1. Tomisaka, K.: Collapse and fragmentation of cylindrical magnetized clouds: simulation with nested grid scheme. Publ. Astron. Soc. Japan 48 (1996) 701–717

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  2. Norman, M. L., Bryan, G. L.: Cosmological adaptive mesh refinement. numa.conf (1999) 19–28

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Author information

Authors and Affiliations

  1. Graduate School of Science and Technology, Chiba University, Inage-Ku, Chiba, 263-8522, Japan

    Takuhito Kuwabara & Sigeki Miyaji

  2. Faculty of Science, Chiba University, Inage-Ku, Chiba, 263-8522, Japan

    Ryoji Matsumoto

  3. Japan Science and Technology Corporation, kawaguchi, 332-0012, Japan

    Kenji Nakamura

Authors
  1. Takuhito Kuwabara
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  2. Ryoji Matsumoto
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  3. Sigeki Miyaji
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  4. Kenji Nakamura
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Editor information

Editors and Affiliations

  1. Institute of Computer Science and Academic Computer Center CYFRONET, University of Mining and Metallurgy (AGH), al. Mickiewicza 30, 30-059, Cracow, Poland

    Marian Bubak

  2. Faculteit der Natuurwetenschappen, Wiskunde en Informatica, Universiteit van Amsterdam, 1098 SJ, Amsterdam, The Netherlands

    Hamideh Afsarmanesh  & Bob Hertzberger  & 

  3. California Institute of Technology, Caltech 158-79, Pasadena, CA, 91125, USA

    Roy Williams

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© 2000 Springer-Verlag Berlin Heidelberg

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Cite this paper

Kuwabara, T., Matsumoto, R., Miyaji, S., Nakamura, K. (2000). Implementation of Nested Grid Scheme for Global Magnetohydrodynamic Simulations of Astrophysical Rotating Plasmas. In: Bubak, M., Afsarmanesh, H., Hertzberger, B., Williams, R. (eds) High Performance Computing and Networking. HPCN-Europe 2000. Lecture Notes in Computer Science, vol 1823. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45492-6_63

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  • DOI: https://doi.org/10.1007/3-540-45492-6_63

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-67553-2

  • Online ISBN: 978-3-540-45492-2

  • eBook Packages: Springer Book Archive

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