Research objectives: Spacetime discontinuous Galerkin methods nest local finite element solutions within an advancing-front mesh generation algorithm. Thus, our problem reduces to research on efficient patch-wise parallel mesh generation algorithms. - PowerPoint PPT Presentation

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Research objectives: Spacetime discontinuous Galerkin methods nest local finite element solutions within an advancing-front mesh generation algorithm. Thus, our problem reduces to research on efficient patch-wise parallel mesh generation algorithms.

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Title: Research objectives: Spacetime discontinuous Galerkin methods nest local finite element solutions within an advancing-front mesh generation algorithm. Thus, our problem reduces to research on efficient patch-wise parallel mesh generation algorithms.


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  • Research objectives Spacetime discontinuous
    Galerkin methods nest local finite element
    solutions within an advancing-front mesh
    generation algorithm. Thus, our problem reduces
    to research on efficient patch-wise parallel mesh
    generation algorithms.
  • Approach Spacetime methods are set up in such a
    way that they are easy to parallelize.
  • The solution on each patch depends only on
    inflow element data.
  •  The amount of data per patch is small, making
    it inexpensive to send patch data to another
    processor.
  • A Fem framework is used to handle the parallel
    details at runtime and to partition the space
    mesh.
  • Significant results We have demonstrated
    scalable parallel performance for problems
    without adaptive mesh refinement on clusters of
    up to 64 processors with efficiencies as high as
    97. A load-balancing implementation for adaptive
    models is under development.
  • Broader impact Adaptive mesh generation for
    time-dependent problems is an important step in
    many scientific applications. An efficient
    parallel algorithm that addresses adaptive mesh
    generation with an integrated solution procedure
    has the potential to benefit an extensive set of
    applications.
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