000022710 001__ 22710
000022710 005__ 20220110134522.0
000022710 04107 $$aeng
000022710 046__ $$k2018-05-14
000022710 100__ $$aBošanský, M.
000022710 24500 $$aEvaluation of linear system equations solvers on multicore architectures

000022710 24630 $$n24.$$pEngineering Mechanics 2018
000022710 260__ $$bInstitute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague
000022710 506__ $$arestricted
000022710 520__ $$2eng$$aThe aim of this paper is the evaluation of an existing parallel, linear equation solver to solve largescale, sparse, non-symmetric systems of linear equations as a part of the finite element software. Traditional finite element solvers run in a serial mode and are limited by available resources. The parallel approach allows to take an advantage of the distributed memory to forming large system matrices and multiple processing units to achieve significant speedups. In this paper, we study differences between the sequential and parallel solutions. Parallel approach contributing shared and distributed memory is represented by SuperLU DIST solver. SuperLU DIST is primary based on distributed memory model with using Message Passing Interface. SuperLU DIST can be also used as the hybrid parallel model combining shared memory model or with graphical computing units. The performance of parallel solvers is tested on problems from solid mechanics. The two type of benchmark problems discuss in this paper and computations of this problems are based on OOFEM which is a free finite element code with object oriented architecture for solving mechanical, transport and fluid mechanics problems that operates on various platform. The efficiency of hybrid SuperLU solver is com pared to the efficiency of pure shared memory SuperLU solver and to distributed memory solver in PETSc.

000022710 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022710 653__ $$alinear equation solver, parallelization, memory, communication, threads

000022710 7112_ $$aEngineering Mechanics 2018$$cSvratka, CZ$$d2018-05-14 / 2018-05-17$$gEM2018
000022710 720__ $$aBošanský, M.$$iPatzák, B.
000022710 8560_ $$ffischerc@itam.cas.cz
000022710 8564_ $$s260062$$uhttps://invenio.itam.cas.cz/record/22710/files/109.pdf$$yOriginal version of the author's contribution in proceedings, page , section SOL.
000022710 962__ $$r21225
000022710 980__ $$aPAPER