A PETSc Parallel Implementation of Substructured One- and Two-level Schwarz Methods

Keywords

Advanced Numerical Methods for Scientific Computing
Code:
82/2022
Title:
A PETSc Parallel Implementation of Substructured One- and Two-level Schwarz Methods
Date:
Monday 28th November 2022
Author(s):
Ciaramella, G.; Gander, M.; Van Criekingen, S.; Vanzan, T.
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Abstract:
Substructured Schwarz methods are interpretations of volume Schwarz methods as algorithms on interface variables. In this work, we consider the substructured version of the Parallel Schwarz Method (PSM) and a recent extention to a two-level (i.e. coarse-corrected) framework. In particular, we present an implementation of the substructured PSM based on the PETSc (Portable, Extensible Toolkit for Scientific Computation) linear algebra package of one- and two-level methods.
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Domain Decomposition Proceedings