EVALUATION OF LINEAR SYSTEM EQUATIONS SOLVERS ON MULTICORE ARCHITECTURES

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

EVALUATION OF LINEAR SYSTEM EQUATIONS SOLVERS ON MULTICORE ARCHITECTURES

Popis výsledku v původním jazyce

The 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. Su- perLU 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 objectoriented architecture for solving mechanical, transport and fluid mechanics problems that operates on various platform. The efficiency of hybrid SuperLU solver is compared to the efficiency of pure shared memory SuperLU solver and to distributed memory solver in PETSc.

Název v anglickém jazyce

EVALUATION OF LINEAR SYSTEM EQUATIONS SOLVERS ON MULTICORE ARCHITECTURES

Popis výsledku anglicky

The 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. Su- perLU 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 objectoriented architecture for solving mechanical, transport and fluid mechanics problems that operates on various platform. The efficiency of hybrid SuperLU solver is compared to the efficiency of pure shared memory SuperLU solver and to distributed memory solver in PETSc.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Engineering Mechanics 2018: Book of Full Texts

ISBN

978-80-86246-88-8

ISSN

1805-8248

e-ISSN

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Počet stran výsledku

4

Strana od-do

78-81

Název nakladatele

Ústav teoretické a aplikované mechaniky AV ČR, v. v. i.

Místo vydání

Praha

Místo konání akce

Svratka

Datum konání akce

14. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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