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Simulation of disc-bulge-halo galaxies using parallel GPU based codes

  • O. Veles (a1) (a2), P. Berczik (a1) (a3) (a2) and A. Just (a2)

Abstract

We compare the performance of the very popular Tree-GPU code BONSAI with the older Particle-(Multi)Mesh code SUPERBOX. Both code we run on a same hardware using the GPU acceleration for the force calculation. SUPERBOX is a particle-mesh code with high resolution sub-grid and a higher order NGP (nearest grid point) force-calculation scheme. In our research, we are aiming to demonstrate that the new parallel version of SUPERBOX is capable to do the high resolution simulations of the interaction of the system of disc-bulge-halo composed galaxy. We describe the improvement of performance and scalability of SUPERBOX particularly for the Kepler cluster (NVIDIA K20 GPU). A comparison was made with the very popular and publicly available Tree-GPU code BONSAI.

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References

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Berczik, P., Nitadori, K., Zhong, S., et al. 2011, in International conference on High Performance Computing Kyiv Ukraine, October 8-10, 2011., p. 8–18, 8–18
Berczik, P., Spurzem, R., Wang, L., Zhong, S., & Huang, S. 2013, in Third International Conference “High Performance Computing”, HPC-UA 2013, p. 52–59, 52–59
Bédorf, J., Gaburov, E., & Portegies Zwart, S.. Bonsai: A GPU Tree-Code. In Capuzzo-Dolcetta, R., Limongi, M., and Tornambè, A., editors, Advances in Computational Astrophysics: Methods, Tools, and Outcome, volume 453 of Astronomical Society of the Pacific Conference Series, page 325, July 2012.
Bien, R., Just, A., Berczik, P., & Berentzen, I.. High resolution in z-direction: The simulation of disc-bulge-halo galaxies using the particle-mesh code SUPERBOX. Astronomische Nachrichten, 329:1029, December 2008.
Fellhauer, M., Kroupa, P., Baumgardt, H., Bien, R., Boily, C. M., Spurzem, R., & Wassmer, N.. SUPERBOX - an efficient code for collisionless galactic dynamics. New A, 5:305326, September 2000.
Fellhauer, M., 2006, Superbox manual,
Harfst, S., Gualandris, A., Merritt, D., et al. 2007, New. Astr., 12, 357
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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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