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2011 | OriginalPaper | Chapter
Evaluation of Message Passing Communication Patterns in Finite Element Solution of Coupled Problems
Authors : Renato N. Elias, Jose J. Camata, Albino Aveleda, Alvaro L. G. A. Coutinho
Published in: High Performance Computing for Computational Science – VECPAR 2010
Publisher: Springer Berlin Heidelberg
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This work presents a performance evaluation of single node and subdomain communication schemes available in EdgeCFD, an implicit edge-based coupled fluid flow and transport code for solving large scale problems in modern clusters. A natural convection flow problem is considered to assess performance metrics. Tests, focused in single node multi-core performance, show that past Intel Xeon processors dramatically suffer when large workloads are imposed to a single node. However, the problem seems to be mitigated in the newest Intel Xeon processor. We also observe that MPI non-blocking point-to-point interface sub-domain communications, although more difficult to implement, are more effective than collective interface sub-domain communications.