Implementation of hybrid total FETI (HTFETI) solver for multi-core architectures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F15%3A86096105" target="_blank" >RIV/61989100:27240/15:86096105 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27740/15:86096105 RIV/61989100:27230/15:86096105
Result on the web
<a href="http://dx.doi.org/10.1063/1.4913028" target="_blank" >http://dx.doi.org/10.1063/1.4913028</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4913028" target="_blank" >10.1063/1.4913028</a>
Alternative languages
Result language
angličtina
Original language name
Implementation of hybrid total FETI (HTFETI) solver for multi-core architectures
Original language description
We describe the implementation and the performance and scalability results of a hybrid FETI (Finite Element Tearing and Interconnecting) solver based on our variant of the FETI type domain decomposition method called Total FETI. In our approach a small number of neighboring subdomains is aggregated into clusters, which results into a smaller coarse problem. To solve the original problem Total FETI method is applied twice: to the clusters and then to the subdomains in each cluster. Current implementationof the solver is focused on the performance optimization of the main CG iteration loop, including: implementation of communication hiding and avoiding techniques for global communications; optimization of the nearest neighbor communication - multiplication with global gluing matrix; and optimization of the parallel CG algorithm to iterate over local Lagrange multipliers only. The performance is demonstrated on a linear elasticity synthetic 3D cube and real world benchmarks.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BA - General mathematics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
AIP Conference Proceedings. Volume 1648
ISBN
978-0-7354-1287-3
ISSN
0094-243X
e-ISSN
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Number of pages
4
Pages from-to
"nestrankovano"
Publisher name
American Institute of Physics
Place of publication
New York
Event location
Rhodos
Event date
Sep 22, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000355339705025