Open AccessParallel calculation of the stationary diffusion equation
Author(s) -
E O Soldatov,
Yu. N. Volkov,
M. N. Zizin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1689/1/012074
Subject(s) - speedup , acceleration , code (set theory) , computer science , diffusion , parallel computing , mathematics , scheme (mathematics) , process (computing) , statistical physics , algorithm , physics , mathematical analysis , classical mechanics , set (abstract data type) , thermodynamics , programming language , operating system
Considering the complex neutron-physical systems with the number of calculation points than 1 million, the calculation time can be an hour or more, and in case of non-stationary process with the small step of time, the waiting can be a month. The aim of the study is to develop effective techniques for the stationary computational modeling using parallelization technology to imply in non-stationary calculations. The parallelization scheme with height decomposition for stationary model was developed. The calculated speedup on the parallel part of the code are in good agreement with the linear dependence. The theoretical possible acceleration was derived using Amdal’s law. Comparing the obtained and theoretical curves demonstrates that the developed parallelization scheme has less acceleration due to losses. The losses and their relative contribution were identified.