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Performance of Vector/Parallel Orientated Hydrodynamic Code

  • Shigeki Miyaji
  • Ayato Noro
  • Tomoya Ogawa
  • Mitue Den
  • Kazuyuki Yamashita
  • Hiroyoshi Amo
  • Kazushi Furuta
Conference paper
Part of the Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 41)

Summary

We have developed a hydrodynamic 3 dimensional AMR code which is suitable for vectorization and parallelization based on Fully Threaded Tree method. For the case of 3D FTT-AMR simulation, the number of higher resolution cells is eight times of that of mother low resolution cells. Therefore if the region where the highest resolution is required has certain volume, it is better to use single time step for every levels of resolution because we can avoid artificial flow at the surface of resolution interface. This level-independent time step also makes possible to simplify the evaluation of refinement indicator. As a result, we can overcome the demerit of consuming CPU time by computing at level-independent time step less than CFL limit, by boosting vector acceleration ratio.

Keywords

Resolution Mesh Single Time Step Astrophysical Phenomenon Communication Research Laboratory Short Vector Length 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Shigeki Miyaji
    • 1
    • 2
    • 3
    • 4
  • Ayato Noro
    • 1
    • 2
    • 3
    • 4
  • Tomoya Ogawa
    • 1
    • 2
    • 3
    • 4
  • Mitue Den
    • 1
    • 2
    • 3
    • 4
  • Kazuyuki Yamashita
    • 1
    • 2
    • 3
    • 4
  • Hiroyoshi Amo
    • 1
    • 2
    • 3
    • 4
  • Kazushi Furuta
    • 1
    • 2
    • 3
    • 4
  1. 1.Graduate School of Science and TechnologyChiba UniversityJapan
  2. 2.Simulator Group, Communications Research LaboratoryJapan
  3. 3.The Center for Educational ResearchUniversity of YamanashiJapan
  4. 4.NECJapan

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