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Structure and Algorithms of SL-AV Atmosphere Model Parallel Program Complex


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Abstract

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.

About the authors

M. Tolstykh

Institute of Numerical Mathematics; Hydrometcentre of Russia; Moscow Institute of Physics and Technology

Author for correspondence.
Email: mtolstykh@mail.ru
Russian Federation, ul. Gubkina 8, Moscow, 119991; Predtecenskii per. 11B, Moscow, 123242; Institutskii per. 9, Dolgorpudnyi, Moscow oblast, 141701

G. Goyman

Institute of Numerical Mathematics; Hydrometcentre of Russia

Email: mtolstykh@mail.ru
Russian Federation, ul. Gubkina 8, Moscow, 119991; Predtecenskii per. 11B, Moscow, 123242

R. Fadeev

Institute of Numerical Mathematics; Moscow Institute of Physics and Technology

Email: mtolstykh@mail.ru
Russian Federation, ul. Gubkina 8, Moscow, 119991; Institutskii per. 9, Dolgorpudnyi, Moscow oblast, 141701

V. Shashkin

Institute of Numerical Mathematics; Hydrometcentre of Russia; Moscow Institute of Physics and Technology

Email: mtolstykh@mail.ru
Russian Federation, ul. Gubkina 8, Moscow, 119991; Predtecenskii per. 11B, Moscow, 123242; Institutskii per. 9, Dolgorpudnyi, Moscow oblast, 141701

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