Вестник Нижегородского университета им. Н.И. Лобачевского. Серия: Социальные науки

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Title of Article

SOLUTION OF ILL-CONDITIONED SYMMETRIC SLAE FOR STRUCTURAL MECHANICS PROBLEMS BY PARALLEL ITERATIVE METHODS

Issue	4
Date	2012

Article type	scientific article	UDC	519.612
Pages	238-246	Keywords	structural mechanics problems, system of linear algebraic equations, iterative methods, incomplete triangular factorization, parallel computing, message passing interface (MPI), multithreading, the Lomonosov supercomputer

Authors

Yakushev Vladimir LavrentevichInstitut avtomatizatsii proektirovaniya RAN, Moskva
Simbirkin Valeriy NikolaevichOOO «Evrosoft», Moskva
Filimonov Anton ValerevichInstitut avtomatizatsii proektirovaniya RAN, Moskva, OOO «Evrosoft», Moskva
Novikov Pavel AleksandrovichInstitut avtomatizatsii proektirovaniya RAN, Moskva
Konshin Igor NikolaevichVychislitelnyy tsentr im. A.A. Dorodnitsyna RAN, Moskva, OOO «TESIS», Moskva
Sushko Gennadiy BorisovichOOO «TESIS», Moskva
Kharchenko Sergey AleksandrovichVychislitelnyy tsentr im. A.A. Dorodnitsyna RAN, Moskva, OOO «TESIS», Moskva

Abstract

The results of numerical experiments using the iterative methods are presented for the solution of ill-conditioned symmetric SLAE for a number of structural mechanics problems. The second order incomplete triangular factorization has been used to construct preconditionings. MPI and TBB technologies have been exploited to parallelize computations. Numerical experiments in different parallel regimes have been performed on the Lomonosov supercomputer.

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