FETI-DP preconditioners for the Virtual Element Method on general 2D meshes

26 Apr 2018 Prada Daniele Bertoluzza Silvia Pennacchio Micol Livesu Marco

We analyze the performance of a state-of-the-art domain decomposition approach, the Finite Element Tearing and Interconnecting Dual Primal (FETI-DP) method, for the efficient solution of very large linear systems arising from elliptic problems discretized by the Virtual Element Method. We provide numerical experiments on a model linear elliptic problem with highly heterogeneous diffusion coefficients on arbitrary Voronoi meshes, which we modify by adding nodes and edges deriving from the intersection with an unrelated coarse decomposition... (read more)

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