Heinlein, Alexander, Klawonn, Axel 
ORCID: 0000-0003-4765-7387, Rajamanickam, Sivasankaran and Rheinbach, Oliver
(2018).
FROSch: A Fast And Robust Overlapping Schwarz Domain Decomposition Preconditioner Based on Xpetra in Trilinos.
Technical Report.
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Abstract
A parallel two-level overlapping Schwarz domain decomposition preconditioner has been integrated into the Trilinos ShyLU-package. The preconditioner uses an energy-minimizing coarse space and can be constructed from an assembled sparse matrix. The software implements variants of the two-level overlapping Schwarz method from [Dohrmann, Klawonn, Widlund, SINUM 2008], where it was denoted Generalized Dryja, Smith, Widlund (GDSW). The implementation is based on [Heinlein, Klawonn, Rheinbach, SISC 2016] but has been improved significantly with respect to efficiency, generality, e.g., for the use of Tpetra instead of Epetra matrices, and its interface.
| Item Type: | Preprints, Working Papers or Reports (Technical Report) | ||||||||||||||||||||
| Creators: |
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| URN: | urn:nbn:de:hbz:38-90188 | ||||||||||||||||||||
| Series Name at the University of Cologne: | Technical report series. Center for Data and Simulation Science | ||||||||||||||||||||
| Volume: | 2018,9 | ||||||||||||||||||||
| Date: | 16 November 2018 | ||||||||||||||||||||
| Language: | English | ||||||||||||||||||||
| Faculty: | Central Institutions / Interdisciplinary Research Centers | ||||||||||||||||||||
| Divisions: | Weitere Institute, Arbeits- und Forschungsgruppen > Center for Data and Simulation Science (CDS) | ||||||||||||||||||||
| Subjects: | Mathematics Technology (Applied sciences) |
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| URI: | http://kups.ub.uni-koeln.de/id/eprint/9018 |
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