Data structures for the distributed iterative solution of non-conventional finite element models

Ildi Cismaşiu, J. P. Moitinho de Almeida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A class of specialised data structures designed for the distributed solution of non-conventional finite element formulations, which are equally effective when used in conjunction with conventional formulations, is presented. We begin by briefly discussing how the non-conventional finite element formulations being developed within the structural analysis group at IST [Freitas JAT, Almeida JPM, Pereira EMBR. Non-conventional formulations for the finite element method. Comput Mech 1999;23(5-6):488-501] lead to systems of equations that appear to be naturally suited for parallel processing, but we also recognise that to take full advantage of the characteristics of these systems - large dimension, non-overlapping block structure and sparsity - it is necessary to use appropriate data structures. The approach presented, which references the logical subdivisions of the system matrices, was designed to fulfil these objectives. Examples of parallel performance and efficiency on an homogeneous distributed platform are presented.

Original languageEnglish
Pages (from-to)750-762
Number of pages13
JournalAdvances In Engineering Software
Volume38
Issue number11-12
DOIs
Publication statusPublished - 1 Jan 2007
Event7th International Conference on Computational Structures Technology/4th International Conference on Engineering Computational - Lisbon, Portugal
Duration: 7 Sep 20049 Sep 2004

Keywords

  • Domain decomposition
  • Hybrid finite elements
  • Matrix handling data structures
  • Parallel processing

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