An object oriented parallel finite element scheme for computations of PDEs: Design and implementation

Ganesan, Sashikumaar and John, Volker and Matthies, Gunar and Meesala, Raviteja and Shamim, Abdus and Wilbrandt, Ulrich (2016) An object oriented parallel finite element scheme for computations of PDEs: Design and implementation. In: 23rd Annual IEEE International Conference on High Performance Computing, Data, and Analytics (HiPCW), DEC 19-22, 2016, Intel, Hyderabad, INDIA, pp. 106-115.

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Abstract

Parallel finite element algorithms based on objectoriented concepts are presented. Moreover, the design and implementation of a data structure proposed are utilized in realizing a parallel geometric multigrid method. The ParFEMapper and the ParFECommunicator are the key components of the data structure in the proposed parallel scheme. These classes are constructed based on the type of finite elements (continuous or nonconforming or discontinuous) used. The proposed solver is compared with the open source direct solvers, MUMPS and PasTiX. Further, the performance of the parallel multigrid solver is analyzed up to 1080 processors. The solver shows a very good speedup up to 960 processors and the problem size has to be increased in order to maintain the good speedup when the number of processors are increased further. As a result, the parallel solver is able to handle large scale problems on massively parallel supercomputers. The proposed parallel finite element algorithms and multigrid solver are implemented in our in-house package ParMooN.

Item Type:	Conference Proceedings
Publisher:	IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Additional Information:	Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Others
Date Deposited:	20 May 2017 05:44
Last Modified:	20 May 2017 05:44
URI:	http://eprints.iisc.ac.in/id/eprint/56917

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