PARALLEL 2D GASDYNAMIC COMPUTATIONS WITH “D” CODES ON THE DISTRIBUTED MEMORY MP3 MULTIPROCESSOR
R.Z. Samigulina VANT. Ser.: Mat. Mod. Fiz. Proc 1997. Вып.1. С. 6162.
The evolution of multiprocessors allowed to develop new methods for the calculation of scientific applications; and to adapt the existing codes to parallel computations. The report presented a parallelization algorithm for 2D Lagrangian method (on a regular grid) within “D” complex [1,2] in a singledomain geometry on the 8processor distributedmemory MP3 system [3]. The gas dynamic code of “D” complex combined with RND code represents a relatively complicated product whose significant modification may require much labor and time. Therefore we use the parallelization algorithm allowing to port these codes to a parallel computer with minor modifications or, without any modification. The test computations were run to evaluate the algorithm efficiency. The report presented the computational results illustrating the speedup and efficiency of the parallel algorithm. The work results indicate that the parallel computations allow to reduce considerably the computational time for gasdynamics with the increase in computational cells. The approach used can be also applied to the multidomain case. 1. Dmitriev N.A., Dmiirieva L.V., Malinovskaya E.V., Sofronov I.D. The method for the calculation of 2D nonstationary gasdynamic problems in Lagrangian variables // Theoretical Fundamentals and Construction of Numerical Algorithms in Computational Physics / Ed. by Babenko K.I., M.: Nauka, 1979. P. 175200. 2. Artemiev A.Yv., Bashurova M.S., Delov V.I., Dmiirieva L.V., Samigulina R.Z., Senihva O.V., Chernyshev Fu.Z. Applications package “D” for the calculation gasdynamic problems in Lagrangian variables and deforming solid problems on regular grids // Zababakhin Scientific Conference (report summary). 1992. P. 41 42. 3. Voronin B.L., Skrypnik S.I., Kozub A.G. et al. RAMZES package for the calculation of gasdynamic heat conduction problems // Computer Simulation Technology / Ed. by V.P. Il’in Novosibirsk: Computing Center of Siberian Division of the Soviet Academy of Sciences, 1989.
