Structure and Algorithms of SL-AV Atmosphere Model Parallel Program Complex
Mikhail A. Tolstykh, Gordey S. Goyman, Rostislav Yu. Fadeev, Vladimir V. Shashkin · Lobachevskii Journal of Mathematics · 2018
We present recent modifications of the SL-AV global atmosphere model parallel structure and algorithms. The modification of the hybridMPI+OpenMP parallelization structure as well as new parallel I/O system is described. The new multigrid algorithm for solving the linear algebraic equations systems arising from discretization at the reduced latitude-longitude grid is introduced and the convergence results for this method are presented.