FROSch (Fast and Robust Overlapping Schwarz)

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FROSch (Fast and Robust Overlapping Schwarz) is a framework for parallel overlapping Schwarz preconditioners in Trilinos. It is designed to be used as an algebraic solver for discrete problems arising from continuum mechanical problems. The framework is part of the Trilinos package ShyLU and it offers a range of functions for the construction and combination of various Schwarz preconditioners.

The FROSch code is availble on GitHub as part of Trilinos. For more information, see About and the ShyLU user guide.

To cite FROSch, please refer to:

FROSch: A Fast And Robust Overlapping Schwarz Domain Decomposition Preconditioner Based on Xpetra in Trilinos. Alexander Heinlein, Axel Klawonn, Sivasankaran Rajamanickam, and Oliver Rheinbach, pages 176--184. Springer International Publishing, 2020. Preprint [ bib | DOI ]
A parallel implementation of a two-level overlapping Schwarz method with energy-minimizing coarse space based on Trilinos. Alexander Heinlein, Axel Klawonn, and Oliver Rheinbach. SIAM J. Sci. Comput., 38(6):C713--C747, 2016. Preprint [ bib | DOI ]

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