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  • This paper deals with an analysis of various parallelization strategies for the TFETI algorithm. The data distributions and the most relevant actions are discussed, especially those concerning coarse problem. Being a part of the coarse space projector, it couples all the subdomains computations and accelerates convergence. Its direct solution is more robust but complicates the massively parallel implementation. Presented numerical results confirm high parallel scalability of the coarse problem solution if the dual constraint matrix is distributed and then orthonormalized in parallel. Benchmarks were implemented using PETSc parallelization library and run on HECToR service at EPCC in Edinburgh.
  • This paper deals with an analysis of various parallelization strategies for the TFETI algorithm. The data distributions and the most relevant actions are discussed, especially those concerning coarse problem. Being a part of the coarse space projector, it couples all the subdomains computations and accelerates convergence. Its direct solution is more robust but complicates the massively parallel implementation. Presented numerical results confirm high parallel scalability of the coarse problem solution if the dual constraint matrix is distributed and then orthonormalized in parallel. Benchmarks were implemented using PETSc parallelization library and run on HECToR service at EPCC in Edinburgh. (en)
Title
  • TFETI Coarse Space Projectors Parallelization Strategies
  • TFETI Coarse Space Projectors Parallelization Strategies (en)
skos:prefLabel
  • TFETI Coarse Space Projectors Parallelization Strategies
  • TFETI Coarse Space Projectors Parallelization Strategies (en)
skos:notation
  • RIV/61989100:27740/12:86084421!RIV13-MSM-27740___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(ED1.1.00/02.0070), S
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 174169
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27740/12:86084421
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • coarse problem; natural coarse space; PETSc; TFETI; Total FETI; FETI; domain decomposition (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [45B98BD3E68D]
http://linked.open...v/mistoKonaniAkce
  • Torun
http://linked.open...i/riv/mistoVydani
  • Berlin
http://linked.open...i/riv/nazevZdroje
  • Lecture Notes in Computer Science. Volume 7203
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Horák, David
  • Hapla, Václav
http://linked.open...vavai/riv/typAkce
http://linked.open...ain/vavai/riv/wos
  • 000313192800016
http://linked.open.../riv/zahajeniAkce
issn
  • 0302-9743
number of pages
http://bibframe.org/vocab/doi
  • 10.1007/978-3-642-31464-3_16
http://purl.org/ne...btex#hasPublisher
  • Springer-Verlag
https://schema.org/isbn
  • 978-3-642-31463-6
http://localhost/t...ganizacniJednotka
  • 27740
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