Matrix: Meszaros/karted

Description: linear programming problem, C. Meszaros test set

Meszaros/karted graph
(bipartite graph drawing)

Meszaros/karted dmperm of Meszaros/karted

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  • download as a MATLAB mat-file, file size: 5 MB. Use UFget(1813) or UFget('Meszaros/karted') in MATLAB.
  • download in Matrix Market format, file size: 7 MB.
  • download in Rutherford/Boeing format, file size: 5 MB.

    Matrix properties
    number of rows46,502
    number of columns133,115
    nonzeros1,770,349
    structural full rank?yes
    structural rank46,502
    # of blocks from dmperm2
    # strongly connected comp.1
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    typereal
    structurerectangular
    Cholesky candidate?no
    positive definite?no

    author
    editorC. Meszaros
    date2006
    kindlinear programming problem
    2D/3D problem?no

    Additional fieldssize and type
    bfull 46502-by-1
    cfull 133115-by-1
    lofull 133115-by-1
    hifull 133115-by-1
    z0full 1-by-1

    Notes:

    http://www.sztaki.hu/~meszaros/public_ftp/lptestset      
Converted to standard form via Resende and Veiga's mpsrd:
minimize c'*x, subject to A*x=b and lo <= x <= hi

    Ordering statistics:result
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD599,223,601
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD39,293,005

    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.