On the parallel solution of tridiagonal systems by wrap-around partitioning and incomplete LU factorization (Q1179035)

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scientific article; zbMATH DE number 23781
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On the parallel solution of tridiagonal systems by wrap-around partitioning and incomplete LU factorization
scientific article; zbMATH DE number 23781

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    On the parallel solution of tridiagonal systems by wrap-around partitioning and incomplete LU factorization (English)
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    26 June 1992
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    Two methods are presented to solve tridiagonal systems on parallel and vector computers. The first algorithm for diagonally dominant systems uses incomplete Gaussian elimination without pivoting. The other one applies Gaussian elimination with partial pivoting for more general systems. Both methods are based on wrap-around partitioning. The author carefully studies the speedup and provides an example on a CRAY X-MP.
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    parallel computer
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    tridiagonal systems
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    vector computers
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    algorithm
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    diagonally dominant systems
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    incomplete Gaussian elimination without pivoting
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    partial pivoting
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    wrap-around partitioning
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    CRAY X-MP
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