Matrix: Hollinger/jan99jac120

Description: Jacobian from Bank of Canada 'jan99' model, oldstack 120

Hollinger/jan99jac120 graph Hollinger/jan99jac120 graph
(bipartite graph drawing) (graph drawing of A+A')

Hollinger/jan99jac120 dmperm of Hollinger/jan99jac120
scc of Hollinger/jan99jac120

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  • Matrix group: Hollinger
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  • download as a MATLAB mat-file, file size: 2 MB. Use UFget(578) or UFget('Hollinger/jan99jac120') in MATLAB.
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    Matrix properties
    number of rows41,374
    number of columns41,374
    nonzeros229,385
    structural full rank?yes
    structural rank41,374
    # of blocks from dmperm5,292
    # strongly connected comp.5,272
    explicit zero entries30,817
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    typereal
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorP. Hollinger
    editorT. Davis
    date2001
    kindeconomic problem
    2D/3D problem?no

    Additional fieldssize and type
    bfull 41374-by-1
    xfull 41374-by-1

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD2,348,115
    Cholesky flop count9.5e+08
    nnz(L+U), no partial pivoting, with AMD4,654,856
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD2,539,425
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD7,025,008

    Note that all matrix statistics (except nonzero pattern symmetry) exclude the 30817 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.