Matrix: Hollinger/mark3jac140sc

Description: Jacobian from MULTIMOD Mark3, oldstack 140 (scaled)

Hollinger/mark3jac140sc graph Hollinger/mark3jac140sc graph
(bipartite graph drawing) (graph drawing of A+A')

Hollinger/mark3jac140sc dmperm of Hollinger/mark3jac140sc
scc of Hollinger/mark3jac140sc

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  • Matrix group: Hollinger
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  • download as a MATLAB mat-file, file size: 3 MB. Use UFget(593) or UFget('Hollinger/mark3jac140sc') in MATLAB.
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    Matrix properties
    number of rows64,089
    number of columns64,089
    structural full rank?yes
    structural rank64,089
    # of blocks from dmperm2,241
    # strongly connected comp.2,241
    explicit zero entries23,340
    nonzero pattern symmetry 7%
    numeric value symmetry 1%
    Cholesky candidate?no
    positive definite?no

    authorP. Hollinger
    editorT. Davis
    kindeconomic problem
    2D/3D problem?no

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD17,311,934
    Cholesky flop count2.2e+10
    nnz(L+U), no partial pivoting, with AMD34,559,779
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD30,434,268
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD53,721,469

    Note that all matrix statistics (except nonzero pattern symmetry) exclude the 23340 explicit zero entries.

    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.