Special solution strategies inside a spectral element ocean model

Craig C. Douglas, Gundolf Haase, Mohamed Iskandarani, Stefan Reitzinger

Research output: Contribution to journalArticlepeer-review


We present three ideas to accelerate the filtering process used in the multilayered Spectral Element Ocean Model (SEOM). We define and analyze a Schur complement preconditioner, a lumping of small entries and an algebraic multigrid (AMG) algorithm, and a algebraic multigrid with patch smoothing algorithm. Finally, we analyze the impact of variations of the Schur complement and AMG methods on memory and computer time.

Original languageEnglish (US)
Pages (from-to)309-322
Number of pages14
JournalMathematical Models and Methods in Applied Sciences
Issue number3
StatePublished - Mar 2003


  • Algebraic multigrid
  • Domain decomposition
  • Krylov space methods
  • Preconditioning
  • Schur complement
  • h-p finite elements

ASJC Scopus subject areas

  • Modeling and Simulation
  • Applied Mathematics


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