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Scientific Programming
Volume 2015, Article ID 797325, 22 pages
http://dx.doi.org/10.1155/2015/797325
Research Article

Finite Element Assembly Using an Embedded Domain Specific Language

1Department of Mechanics, Royal Military Academy, Avenue de Renaissance 30, 1000 Brussels, Belgium
2von Karman Institute for Fluid Dynamics, Chaussée de Waterloo 72, 1640 Rhode-Saint-Genèse, Belgium
3LaSIE, La Rochelle University, Avenue Michel Crépeau, 17042 La Rochelle Cedex 1, France

Received 18 November 2013; Revised 22 October 2014; Accepted 19 January 2015

Academic Editor: Bormin Huang

Copyright © 2015 Bart Janssens et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In finite element methods, numerical simulation of the problem requires the generation of a linear system based on an integral form of a problem. Using C++ meta-programming techniques, a method is developed that allows writing code that stays close to the mathematical formulation. We explain the specifics of our method, which relies on the Boost.Proto framework to simplify the evaluation of our language. Some practical examples are elaborated, together with an analysis of the performance. The abstraction overhead is quantified using benchmarks.