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Multilevel balancing domain decomposition at extreme scales

Author
Badia, S.; Martín, A. F.; Principe, J.
Type of activity
Journal article
Journal
SIAM journal on scientific computing
Date of publication
2016-01-26
Volume
38
Number
1
First page
C22
Last page
C52
DOI
https://doi.org/10.1137/15M1013511 Open in new window
Repository
http://hdl.handle.net/2117/86557 Open in new window
URL
http://epubs.siam.org/doi/abs/10.1137/15M1013511 Open in new window
Abstract
© 2016 Society for Industrial and Applied Mathematics. In this paper we present a fully distributed, communicator-aware, recursive, and interlevel-overlapped message-passing implementation of the multilevel balancing domain decomposition by constraints (MLBDDC) preconditioner. The implementation highly relies on subcommunicators in order to achieve the desired effect of coarse-grain overlapping of computation and communication, and communication and communication among levels in the hierarchy (...
Citation
Badia, S., Martín, A. F., Principe, J. Multilevel balancing domain decomposition at extreme scales. "SIAM journal on scientific computing", 01 Gener 2016, vol. 38, núm. 1, p. C22-C52.
Keywords
Domain decomposition, Finite elements, High-performance computing, Parallel computing, Perdominant preconditioning, Scientific software
Group of research
(MC)2 - UPC Computational continuum mechanics
ANiComp - Numerical analysis and scientific computation

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