Matrix: Meszaros/stormg2-8

Description: Deterministic equiv. of stochastic linear programming problem

Meszaros/stormg2-8 graph
(bipartite graph drawing)

Meszaros/stormg2-8 dmperm of Meszaros/stormg2-8
scc of Meszaros/stormg2-8

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  • download as a MATLAB mat-file, file size: 64 KB. Use UFget(1811) or UFget('Meszaros/stormg2-8') in MATLAB.
  • download in Matrix Market format, file size: 97 KB.
  • download in Rutherford/Boeing format, file size: 78 KB.

    Matrix properties
    number of rows4,409
    number of columns11,322
    structural full rank?no
    structural rank4,393
    # of blocks from dmperm26
    # strongly connected comp.41
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    Cholesky candidate?no
    positive definite?no

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

    Additional fieldssize and type
    bfull 4409-by-1
    cfull 11322-by-1
    lofull 11322-by-1
    hifull 11322-by-1
    z0full 1-by-1

    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 COLAMD2,263,891
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD124,656

    SVD-based statistics:
    null space dimension16
    full numerical rank?no
    singular value gapInf

    singular values (MAT file):click here
    SVD method used:s = piro_band_svd (A)

    Meszaros/stormg2-8 svd

    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.