Matrix: Kim/kim2

Description: 2D 676-by-676 complex mesh. Wonsik Kim, Korea.

Kim/kim2 graph Kim/kim2 graph
(bipartite graph drawing) (graph drawing of A+A')

Kim/kim2

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  • Matrix group: Kim
  • Click here for a description of the Kim group.
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  • download as a MATLAB mat-file, file size: 11 MB. Use UFget(863) or UFget('Kim/kim2') in MATLAB.
  • download in Matrix Market format, file size: 38 MB.
  • download in Rutherford/Boeing format, file size: 15 MB.

    Matrix properties
    number of rows456,976
    number of columns456,976
    nonzeros11,330,020
    structural full rank?yes
    structural rank456,976
    # of blocks from dmperm1
    # strongly connected comp.1
    explicit zero entries0
    nonzero pattern symmetry 100%
    numeric value symmetry 0%
    typecomplex
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorW. Kim
    editorT. Davis
    date2002
    kind2D/3D problem
    2D/3D problem?yes

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD90,651,946
    Cholesky flop count7.9e+10
    nnz(L+U), no partial pivoting, with AMD180,846,916
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD161,940,014
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD311,798,326

    For a description of the statistics displayed above, click here.

    Maintained by Tim Davis, last updated 12-Mar-2014.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.