We develop a fully scalable parallel implementation of an iterative solver for the time-harmonic Maxwell equations with vanishing wave numbers. We use a mixed finite element discretization on tetrahedral meshes, based on the lowest order Nédélec finite element pair of the first kind. We apply the block diagonal preconditioning approach of Greif and Schötzau (Numer. Linear Algebra Appl. 2007; 14...

We have developed a visualization module, MeshView, for viewing large-scale 3D un-structured tetrahedral nite element meshes. The module includes two diierent approaches for visualization and analysis, plus the capability to edit meshes after the researcher has analyzed the mesh and located problem areas. The rst approach ooers various real-time interactive manipulation options for visualizing ...

We provide a comprehensive study of arbitrarily high-order finite elements defined on pyramids. We propose a new family of high-order nodal pyramidal finite element which can be used in hybrid meshes which include hexahedra, tetrahedra, wedges and pyramids. Finite elements matrices can be evaluated through approximate integration, and we show that the order of convergence of the method is conse...

This technical report documents the features of amatos and ideas behind those features. amatos is a mesh generation library that is designed for atmospheric and oceanic applications. It features adaptively refined triangular or tetrahedral meshes with polygonal or bitmapped boundary definitions. It supports finite element based methods for solving partial differential equations, has been used e...

This paper presents an automatic approach to generate unstructured tetrahedral meshes in the context of composite or heterogeneous geometry. Using B-Rep concepts and specific adaptations of advancing front mesh generation algorithms, this approach guarantees, in a simple and natural way, mesh continuity and conformity across the interior boundaries of a composite domain. This method presents a ...

We present G23FM, a mesh generation tool for discretizing twoand three-dimensional complex fractured geological media. G23FM includes different techniques to generate finite element grids that maintain the geometric integrity of input surfaces, and geologic data and produce optimal triangular/tetrahedral grids for flow and transport simulations. G23FM generates grid for two-dimensional cross-se...

This paper presents the implementation of a parallel solver for the Poisson, hole and electron continuity equations applied to a three-dimensional simulation of gradual HBT's in a memory distributed multiprocessor. These equations were discretised using a finite element method (FEM) on an unstructured tetrahedral mesh. Domain decomposition methods were used to solve the linear systems. We have ...