The DUNE-ALUGrid Module.
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Archive of Numerical Software 4 (1): 1--28 (2016)

In this paper we present the new DUNE-ALUGrid module. This modulecontains a major overhaul of the sources from the ALUGrid library and thebinding to the DUNE software framework. The main improvements concern theparallel feature set of the library. The main changes include user-defined loadbalancing, parallel grid construction, and an redesign of the 2d grid which can nowalso be used for parallel computations. In addition many improvementshave been introduced into the code to increase the parallel efficiency andto decrease the memory footprint. The original ALUGrid library is widely used within the DUNE community due to its good parallel performance for problems requiring local adaptivity and dynamic load balancing. Therefore, this new model will benefit a number of DUNE users. In addition we haveadded features to increase the range of problems for which the grid manager canbe used, for example, introducing a 3d tetrahedral grid using a parallel newest vertex bisection algorithm for conforming grid refinement. In this paper we will discuss the new features, extensions to the DUNE interface, and explain for various examples how the code is used in parallel environments.
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