The DUNE Framework: Basic Concepts and Recent Developments

Abstract

This paper presents the basic concepts and the module structure of the Distributed and Unified Numerics Environment and reflects on recent developments and general changes that happened since the release of the first Dune version in 2007 and the main papers describing that state [1,2]. This discussion is accompanied with a description of various advanced features, such as coupling of domains and cut cells, grid modifications such as adaptation and moving domains, high order discretizations and node level performance, non-smooth multigrid methods, and multiscale methods. A brief discussion on current and future development directions of the framework concludes the paper.

Strategies for the vectorized Block Conjugate Gradients method

“…The aim of these abstraction is the possibility to use the data types as a replacement for the numeric data type, like double or float, to create data parallel methods. For a more detailed review see Bastian et al [2]. Usually these SIMD data types are provided by external libraries like Vc [9] or vectorclass [4], which usually provide data types with the length of the hardware SIMD (e.g.…”