Parallel/vector improvements of the frontal method | Zendy

Lesoinne M. | Zendy; Farhat C. | Zendy; Geradin M. | Zendy

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Parallel/vector improvements of the frontal method

Author(s) -

Lesoinne M.,

Farhat C.,

Geradin M.

Publication year - 1991

Publication title -

international journal for numerical methods in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.421

H-Index - 168

eISSN - 1097-0207

pISSN - 0029-5981

DOI - 10.1002/nme.1620320607

Subject(s) - solver , parallel computing , finite element method , computer science , computational science , algorithm , ibm , code (set theory) , vector processor , engineering , structural engineering , set (abstract data type) , materials science , programming language , nanotechnology

We present, discuss, and report on the performance of two combined parallel/vector frontal algorithms which have been incorporated in a production finite element code. Two parallelization strategies are described. The first approach is algebra driven and is recommended for the solution of problems with a large bandwidth on a coarse grain configuration. The second strategy is targeted for finer grain systems; it blends the first one with a substructuring technique that is based on a careful partitioning of the finite element mesh into a series of subdomains. Using only 4 IBM 3090/VF processors, the proposed algorithms are shown to deliver speed‐ups as high as 17 with respect to a serial non‐vectorized frontal solver.

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