Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP

Shahab U. Ansari; Masroor Hussain; Ahmar Rashid; Suleman Mazhar; S. M. Ahmad

doi:10.1109/NSEC.2015.7396337

Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP

Shahab U. Ansari, Masroor Hussain, Ahmar Rashid, Suleman Mazhar, S. M. Ahmad

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Scopus citations

Abstract

This paper presents a parallel stabilized mixed Galerkin method for three-dimensional steady-state Darcy flow using OpenMP for shared memory architecture. In finite element problems, the computational complexity increases with increasing number of elements needed for large and complex geometry. Shared memory architecture offers a platform for solving such large and complex problems for practical applications. In parallel solvers, the mesh reordering has proved to be an important preprocessing operation to enhance performance. The objective of this study is to compare the performance of octree-based mesh reordering with multilevel-based reordering in the parallel solution. The reported results include execution time, speedup and efficiency of the solution using hexahedral and tetrahedral meshes of various sizes. The numerical results suggest that the octree-based mesh reordering outperforms multilevel-based method with tetrahedral meshes.

Original language	English
Title of host publication	2015 National Software Engineering Conference, NSEC 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	8-13
Number of pages	6
ISBN (Electronic)	9781467381635
DOIs	https://doi.org/10.1109/NSEC.2015.7396337
State	Published - 1 Feb 2016
Externally published	Yes
Event	National Software Engineering Conference, NSEC 2015 - Rawalpindi, Pakistan Duration: 17 Dec 2015 → …

Publication series

Name	2015 National Software Engineering Conference, NSEC 2015

Conference

Conference	National Software Engineering Conference, NSEC 2015
Country/Territory	Pakistan
City	Rawalpindi
Period	17/12/15 → …

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

Darcy flow
Galerkin method
OpenMP
Shared Memory Architecture
Stabilized mixed method

ASJC Scopus subject areas

Computer Networks and Communications
Software

Access to Document

10.1109/NSEC.2015.7396337

Cite this

Ansari, S. U., Hussain, M., Rashid, A., Mazhar, S., & Ahmad, S. M. (2016). Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP. In 2015 National Software Engineering Conference, NSEC 2015 (pp. 8-13). Article 7396337 (2015 National Software Engineering Conference, NSEC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSEC.2015.7396337

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abstract = "This paper presents a parallel stabilized mixed Galerkin method for three-dimensional steady-state Darcy flow using OpenMP for shared memory architecture. In finite element problems, the computational complexity increases with increasing number of elements needed for large and complex geometry. Shared memory architecture offers a platform for solving such large and complex problems for practical applications. In parallel solvers, the mesh reordering has proved to be an important preprocessing operation to enhance performance. The objective of this study is to compare the performance of octree-based mesh reordering with multilevel-based reordering in the parallel solution. The reported results include execution time, speedup and efficiency of the solution using hexahedral and tetrahedral meshes of various sizes. The numerical results suggest that the octree-based mesh reordering outperforms multilevel-based method with tetrahedral meshes.",

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Ansari, SU, Hussain, M, Rashid, A, Mazhar, S & Ahmad, SM 2016, Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP. in 2015 National Software Engineering Conference, NSEC 2015., 7396337, 2015 National Software Engineering Conference, NSEC 2015, Institute of Electrical and Electronics Engineers Inc., pp. 8-13, National Software Engineering Conference, NSEC 2015, Rawalpindi, Pakistan, 17/12/15. https://doi.org/10.1109/NSEC.2015.7396337

Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP. / Ansari, Shahab U.; Hussain, Masroor; Rashid, Ahmar et al.
2015 National Software Engineering Conference, NSEC 2015. Institute of Electrical and Electronics Engineers Inc., 2016. p. 8-13 7396337 (2015 National Software Engineering Conference, NSEC 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Ansari SU, Hussain M, Rashid A, Mazhar S, Ahmad SM. Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP. In 2015 National Software Engineering Conference, NSEC 2015. Institute of Electrical and Electronics Engineers Inc. 2016. p. 8-13. 7396337. (2015 National Software Engineering Conference, NSEC 2015). doi: 10.1109/NSEC.2015.7396337

Parallel stabilized mixed Galerkin method for three-dimensional Darcy flow using OpenMP

Abstract

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Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

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