To use the massively parallel scalar type supercomputer for the large scale numerical magnetospheric simulation, we made performance evaluation of a three-dimensional Magnetohydrodynamic (MHD) simulation code for space plasma simulations of planetary magnetosphere on the K computer with 262,144 cores at RIKEN. For parallelization of the MHD code, we use four different methods, i.e., regular one-dimensional, two-dimensional, three-dimensional domain decomposition methods and a cache-hit type of three-dimensional domain decomposition method. We found that the onedimensional decomposition and cache-hit type of three-dimensional decomposition achieves the best performance and our MHD code can scale over 200,000 processes on the K computer. © Springer-Verlag Berlin Heidelberg 2013.
CITATION STYLE
Fukazawa, K., Nanri, T., & Umeda, T. (2013). Performance evaluation of magnetohydrodynamics simulation for magnetosphere on K computer. In Communications in Computer and Information Science (Vol. 402, pp. 570–576). Springer Verlag. https://doi.org/10.1007/978-3-642-45037-2_61
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