Investigation of the influence of numerical scheme stencil size on productivity of parallel hydrodynamic code
Keywords:
Numerical scheme; numerical scheme stencil; approximation order; ghost cells; cell padding; numerical simulation; parallel computing; distributed memory; MPI; hydrodynamic code; productivity; efficiency; data rate; atomic power engineering; multiphase flow.Abstract
In this paper we investigate the influence of numerical scheme stencil size on productivity of parallel hydrodynamic code. The code is developed in the Institute for Physics and Power Engineering (IPPE) and aimed on modelling multi?phase flows in nuclear power engineering. The model of distributed memory and ghost cells method are used in numerical code. MPI is used for exchange data. Thus numerical scheme stencil size affect essentially on exchange data rate between parallel processes and code performance. Analysis of numerical experiments results for different number of mesh cells that are accounted for one process and for different numerical scheme stencil sizes are adduced in this paper in terms of one particular nuclear power engineering problem.Downloads
Published
2018-25-07
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Section
INFORMATICS, COMPUTER ENGINEERING AND MANAGEMENT