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    Grammar based multi-frontal solver for isogeometric analysis in 1D

    Access Status
    Open access via publisher
    Authors
    Kuznik, K.
    Paszynski, M.
    Calo, Victor
    Date
    2013
    Collection
    • Curtin Research Publications
    Type
    Conference Paper
    Metadata
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    Abstract

    In this paper, we present a multi-frontal direct solver for one-dimensional iso-geometric finite element method. The solver implementation is based on the graph grammar (GG) model. The GG model allows us to express the entire solver algorithm, including generation of frontal matrices, merging, and eliminations as a set of basic undividable tasks called graph grammar productions. Having the solver algorithm expressed as GG productions, we can find the partial order of execution and create a dependency graph, allowing for scheduling of tasks into shared memory parallel machine. We focus on the implementation of the solver with NVIDIA CUDA on the graphic processing unit (GPU). The solver has been tested for linear, quadratic, cubic, and higher-order B-splines, resulting in logarithmic scalability.

    Citation
    Kuznik, K. and Paszynski, M. and Calo, V. 2013. Grammar based multi-frontal solver for isogeometric analysis in 1D, International Conference on Computational Science, ICCS 2013, pp. 589-613.
    Source Title
    Computer Science
    URI
    http://hdl.handle.net/20.500.11937/58596
    DOI
    10.1016/j.procs.2013.05.325
    Department
    Department of Applied Geology

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