April 26th, 2010· We are pleased to announce the release of Version 2.0 of the "Distributed and Unified Numerics Environment" (DUNE).
· DUNE is a software framework for the numerical solution of partial differential equations with grid-based methods. Using generic programming techniques it strives for both: high flexibility (efficiency of the programmer) and high performance (efficiency of the program). DUNE provides, among other things, a large variety of local mesh refinement techniques, a scalable parallel programming model, an ample collection of finite element methods and efficient linear solvers.
The release includes the three core module dune-common, dune-grid, and dune-istl; and the howtos dune-grid-howto and dune-grid-dev-howto. Together with these five packages we released the new package dune-localfunctions, which brings a new interface for finite element shape functions to Dune. This package will also become a core module. Among many smaller changes, the most notable changes are:
· The dune-grid module now features reference Elements for arbitrary dimensions. This required a new numbering of sub-entities. elements. This change may affect your code in subtle ways if you depend on a particular numbering!
· A new grid implementation, the GeometryGrid, has been added. It wraps any other DUNE grid and replaces the geometry by a generic one. It can, for example, be used to transform a 2d Cartesian grid into a helix.
· The GridFactory interface has been extended. It now allows file readers to pass data associated with a given entity to the user.
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