Coupled Thermo-Hydro-Mechanical Modelling: A New Parallel Approach

Vardon, Philip James, Banicescu, I., Cleall, Peter John ORCID: https://orcid.org/0000-0002-4005-5319, Thomas, Hywel Rhys ORCID: https://orcid.org/0000-0002-3951-0409 and Philp, Roger ORCID: https://orcid.org/0000-0003-3001-0341 2009. Coupled Thermo-Hydro-Mechanical Modelling: A New Parallel Approach. Presented at: IPDPS 2009 - IEEE International Symposium on Parallel & Distributed Processing 2009, Rome, Italy, 23-29 May 2009. Published in: Mei, A. ed. Proceedings: IPDPS 2009 - 23rd IEEE International Parallel & Distributed Processing Symposium 2009. Los Alamitos, CA: IEEE, pp. 2534-2542. 10.1109/IPDPS.2009.5161160

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Abstract

A hybrid MPI/OpenMP method of parallelising a bi-conjugate gradient iterative solver for coupled thermo-hydro-mechanical finite-element simulations in unsaturated soil is implemented and found to be efficient on modern parallel computers. In particular, a new method of parallelisation using a hybrid multi-threaded and message-passing approach depending on calculation size was implemented yielding better performance over more processing units. This was tested on both an Opteron 2218 2.6GHz Dual-Core processor based system with a Gigabit Ethernet interconnect and an Intel Xeon (Harpertown / Seaburg) 3.0GHz Quad-Core processor based system with an InfiniBand Connect-X interconnect. The impact of the experimental results reflect on the scalability of field-scale simulations with a higher resolution both spatially and temporally.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Computer Science & Informatics
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Publisher:	IEEE
ISBN:	9781424437511
Last Modified:	08 Dec 2022 09:53
URI:	https://orca.cardiff.ac.uk/id/eprint/34264

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