Parallel implementation of a numerical method for solving transport equations for the mesoscale meteorological model TSUNM3

Parallel implementation of a numerical method for solving transport equations for the mesoscale meteorological model TSUNM3

A parallel algorithm for numerical solution of a generalized unsteady 3-dimensional advection-diffusion equation for a mesoscale meteorological model TSUNM3 is considered. Efficiency of parallel implementation of the solver with Message Passing Interface (MPI), Open Multi-Processing (OpenMP), Open A...

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Veröffentlicht in:Journal of physics. Conference series 2021-01, Vol.1715 (1), p.12073
Hauptverfasser: Starchenko, A V, Danilkin, E A, Prohanov, S A, Leshchinskiy, D V
Format: Artikel
Sprache:eng
Schlagworte:
Advection-diffusion equation
Algorithms
Computer architecture
Domain decomposition methods
Mathematical models
Mesoscale phenomena
Message passing
Numerical methods
Physics
Transport equations
Two dimensional models
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Zusammenfassung:A parallel algorithm for numerical solution of a generalized unsteady 3-dimensional advection-diffusion equation for a mesoscale meteorological model TSUNM3 is considered. Efficiency of parallel implementation of the solver with Message Passing Interface (MPI), Open Multi-Processing (OpenMP), Open Accelerators (OpenACC), and NVidia Compute Unified Device Architecture (CUDA) technologies was compared. The efficiency of the MPI-parallelized code of TSUNM3 model with a two-dimensional domain decomposition strategy applied is not less than 75% on 256-512 processes on Cyberia supercomputer of Tomsk State University.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1715/1/012073