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: http://num-meth.srcc.msu.ru/english/zhurnal/tom_2014/v15r114.html
Дата изменения: Thu May 15 18:17:22 2014 Дата индексирования: Sun Apr 10 03:02:37 2016 Кодировка: IBM-866 |
"Modeling of magnetorotational instability evolution using a parallel
RKDG algorithm for the magnetohydrodynamic system of equations" Galanin M.P., Lukin V.V., and Shapovalov K.L. |
A parallel algorithm of the RKDG (Runge-Kutta Discontinuous Galerkin) method for axisymmetric 2D ideal MHD equations on unstructured triangular grids is developed. An algorithm of divergence-free magnetic field reconstruction in the cylindrical coordinate system is proposed to obtain physically adequate numerical results with a high degree of accuracy. A high level of the developed parallel code scalability is shown for multiprocessor systems. The parallelization efficiency is analyzed using the K-100 cluster installed at the Keldysh Institute of Applied Mathematics. The results of modeling the magnetorotational instability in a accreting protostar shell are discussed. Keywords: magnetorotational instability, magnetohydrodynamics, RKDG method, parallel programming, MPI.
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