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N-body Code with Adaptive Mesh Refinement

Published online by Cambridge University Press:  26 May 2016

Hideki Yahagi  and
Yuzuru Yoshii
Hideki Yahagi
Affiliation:
Institute of Astronomy, University of Tokyo, 2-21-1 Osawa Mitaka Tokyo 181-0015
Yuzuru Yoshii
Affiliation:
Institute of Astronomy, University of Tokyo, 2-21-1 Osawa Mitaka Tokyo 181-0015

Abstract

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We have developed a simulation code with the techniques which enhance both spatial and time resolution of the PM method for which the spatial resolution is restricted by the spacing of the structured mesh. The adaptive mesh refinement (AMR) technique subdivides the cells which satisfy the refinement criterion recursively. On the other hand, the technique of hierarchical time steps (HTS) changes the time step, from particle to particle, depending on the size of the cell in which particles reside. Our N-body code with these AMR and HTS is fully vectorized including the operations of the mass assignment.

Type
Posters
Information
Symposium - International Astronomical Union , Volume 208: Astrophysical Supercomputing using Particle Simulations , 2003 , pp. 465 - 466
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Hernquist, L. 1990, J. Comp. Phys., 87, 137 Google Scholar
Yahagi, H. & Yoshii, Y. 2001, ApJ, 558, 463 Google Scholar