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Synchronous and asynchronous optimized Schwarz methods for one-way subdivision of bounded domains

Journal Article · · Numerical Linear Algebra with Applications
DOI:https://doi.org/10.1002/nla.2279· OSTI ID:1832749
 [1];  [2];  [3];  [4]
  1. Temple Univ., Philadelphia, PA (United States); St. Joseph University, Beirut (Lebanon); Temple University
  2. Temple Univ., Philadelphia, PA (United States); Louisiana State Univ., Baton Rouge, LA (United States)
  3. CentraleSupélec, Châtenay‐Malabry (France)
  4. Temple Univ., Philadelphia, PA (United States)
Convergence of both synchronous and asynchronous optimized Schwarz algorithms for the shifted Laplacian operator on a bounded rectangular domain, in a one-way subdivision of the computational domain, with overlap, is shown. Convergence results are obtained under very mild conditions on the size of the subdomains and on the amount of overlap. A couple of results are also given, relating the convergence rate of the asynchronous method to changes in the size of the domain. Numerical experiments illustrate the theoretical results.
Research Organization:
Temple Univ., Philadelphia, PA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0016578
OSTI ID:
1832749
Alternate ID(s):
OSTI ID: 1580158
Journal Information:
Numerical Linear Algebra with Applications, Journal Name: Numerical Linear Algebra with Applications Journal Issue: 2 Vol. 27; ISSN 1070-5325
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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Chaotic relaxation journal April 1969
On asynchronous iterations journal November 2000
Asynchronous domain decomposition methods for continuous casting problem journal May 2003
Asynchronous Schwarz methods applied to constrained mechanical structures in grid environment journal August 2014
Non-overlapping Schwarz methods with optimized transmission conditions for the Helmholtz equation journal November 2004
Algebraic approximation of Dirichlet-to-Neumann maps for the equations of linear elasticity journal June 2006
Distributed Convergence Detection Based on Global Residual Error Under Asynchronous Iterations journal April 2018
Optimized Schwarz Methods journal January 2006
Alinea: An Advanced Linear Algebra Library for Massively Parallel Computations on Graphics Processing Units journal March 2015
The influence of domain truncation on the performance of optimized Schwarz methods journal January 2018
Using MPI-2 book January 1999

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