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 proceedingConference contributionpeer-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 languageEnglish
Title of host publication2015 National Software Engineering Conference, NSEC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages8-13
Number of pages6
ISBN (Electronic)9781467381635
DOIs
StatePublished - 1 Feb 2016
Externally publishedYes
EventNational Software Engineering Conference, NSEC 2015 - Rawalpindi, Pakistan
Duration: 17 Dec 2015 → …

Publication series

Name2015 National Software Engineering Conference, NSEC 2015

Conference

ConferenceNational Software Engineering Conference, NSEC 2015
Country/TerritoryPakistan
CityRawalpindi
Period17/12/15 → …

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

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