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Research Papers

Parallelized Simulation of a Finite Element Method in Many Integrated Core Architecture

[+] Author and Article Information
Moonho Tak

Computational Solid and Structural
Mechanics Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro, Seongdong-gu,
Seoul 04763, South Korea
e-mail: pivotman@hanyang.ac.kr

Taehyo Park

Professor
Computational Solid and Structural
Mechanics Laboratory,
Department of Civil and Environmental
Engineering,
Hanyang University,
222 Wangsimni-ro, Seongdong-gu,
Seoul 04763, South Korea
e-mail: cepark@hanyang.ac.kr

1Corresponding author.

Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received June 1, 2016; final manuscript received October 25, 2016; published online February 7, 2017. Assoc. Editor: Xi Chen.

J. Eng. Mater. Technol 139(2), 021009 (Feb 07, 2017) (6 pages) Paper No: MATS-16-1162; doi: 10.1115/1.4035326 History: Received June 01, 2016; Revised October 25, 2016

We investigate a domain decomposition method (DDM) of finite element method (FEM) using Intel's many integrated core (MIC) architecture in order to determine the most effective MIC usage. For this, recently introduced high-scalable parallel method of DDM is first introduced with a detailed procedure. Then, the Intel's Xeon Phi MIC architecture is presented to understand how to apply the parallel algorithm into a multicore architecture. The parallel simulation using the Xeon Phi MIC has an advantage that traditional parallel libraries such as the message passing interface (MPI) and the open multiprocessing (OpenMP) can be used without any additional libraries. We demonstrate the DDM using popular libraries for solving linear algebra such as the linear algebra package (LAPACK) or the basic linear algebra subprograms (BLAS). Moreover, both MPI and OpenMP are used for parallel resolutions of the DDM. Finally, numerical parallel efficiencies are validated by a two-dimensional numerical example.

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Figures

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Fig. 1

Flowchart for the direct DDM

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Fig. 2

Half-circle ring model

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Fig. 3

Elapsed time for the DDM on two MICs and one thread usages

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Fig. 4

Time difference between steps on one threads usage

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Fig. 5

Time difference between steps on N = 16

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Fig. 6

Elapsed time for the DDM on N = 1 for one MIC and N = 16 for four MICs

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