Hybrid MPI/OpenMP Parallelization in FETI-DP Methods

Article in Edited Volumes


Publication Details

Author(s): Klawonn A, Lanser M, Rheinbach O, Stengel H, Wellein G
Title edited volumes: Recent Trends in Computational Engineering - CE2014
Publisher: Springer Link
Publishing place: -
Publication year: 2015
Title of series: Lecture Notes in Computational Science and Engineering
Volume: 105
Pages range: 67-84
ISBN: 978-3-319-22997-3
ISSN: 1439-7358


Abstract


We present an approach to hybrid MPI/OpenMP parallelization in FETIDP methods using OpenMP with PETScCMPI in the finite element assembly and using the shared memory parallel direct solver Pardiso in the FETI-DP solution phase. Our approach thus uses OpenMP parallelization on subdomains and MPI in between subdomains. We investigate the efficiency of this approach for a benchmark problem from two dimensional nonlinear hyperelasticity. We observe good scalability for up to four threads for each MPI rank on a state-of-the-art Ivy Bridge architecture and incremental improvements for up to ten OpenMP threads for each MPI rank.



FAU Authors / FAU Editors

Stengel, Holger
Hauptbibliothek
Wellein, Gerhard Prof. Dr.
Professur für Höchstleistungsrechnen


External institutions with authors

Technische Universität Bergakademie Freiberg
Universität Köln


Research Fields

Modellierung/Simulation/Optimierung
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Klawonn, A., Lanser, M., Rheinbach, O., Stengel, H., & Wellein, G. (2015). Hybrid MPI/OpenMP Parallelization in FETI-DP Methods. In Recent Trends in Computational Engineering - CE2014. (pp. 67-84). -: Springer Link.

MLA:
Klawonn, Axel, et al. "Hybrid MPI/OpenMP Parallelization in FETI-DP Methods." Recent Trends in Computational Engineering - CE2014. -: Springer Link, 2015. 67-84.

BibTeX: 

Last updated on 2019-23-07 at 07:46