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Implementation of a parallel algorithm based on CUDA technology for the numerical study of subsonic chemically active media
| Title | Implementation of a parallel algorithm based on CUDA technology for the numerical study of subsonic chemically active media |
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| Authors | A. V. Sidorova1, A. A. Shishlonov1 1National Research Mordovia State University |
| Annotation | The paper is devoted to the development of a parallel computational algorithm based on CUDA technology for the numerical study of three-dimensional subsonic flows of a multicomponent viscous heat-conducting gas mixture in a cylindrical channel, taking into account multicomponent diffusion. The mathematical model and the sequential numerical algorithm previously developed for the study of such flows are taken as a basis. A description of the implementation of the key stages of the algorithm using CUDA is presented: memory organization, computational kernels, parallel computation of fluxes, and parallel reduction. A comparison of the computation time of the sequential, MPI-based, and CUDA-based implementations on grids of various sizes is performed, showing a speedup of the CUDA version of up to 46 times relative to the sequential program. |
| Keywords | mathematical modeling, subsonic flows, multicomponent medium, Navier–Stokes equations, CUDA technology, parallel computing. |
| Citation | Sidorova A. V., Shishlonov A. A. ''Implementation of a parallel algorithm based on CUDA technology for the numerical study of subsonic chemically active media'' [Electronic resource]. Mathematical modeling, numerical methods, and software systems: Collection of materials from the 12th All‑Russian Scientific Youth School‑Seminar named after E. V. Voskresensky (Saransk, July 21–24, 2026). - pp. 208-211. Available at: https://conf.svmo.ru/files/2026/papers/paper107.pdf. - Date of access: 25.09.2026. |
© SVMO, National Research Mordovia State University, 2026
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