Matrix: Mittelmann/stormG2_1000

Description: Linear programming problem (H. Mittelmann test set)

Mittelmann/stormG2_1000 graph
(bipartite graph drawing)

Mittelmann/stormG2_1000 dmperm of Mittelmann/stormG2_1000
scc of Mittelmann/stormG2_1000

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  • Matrix group: Mittelmann
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  • download as a MATLAB mat-file, file size: 7 MB. Use UFget(1660) or UFget('Mittelmann/stormG2_1000') in MATLAB.
  • download in Matrix Market format, file size: 11 MB.
  • download in Rutherford/Boeing format, file size: 9 MB.

    Matrix properties
    number of rows528,185
    number of columns1,377,306
    structural full rank?no
    structural rank526,185
    # of blocks from dmperm3,002
    # strongly connected comp.5,001
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    Cholesky candidate?no
    positive definite?no

    editorH. Mittelmann
    kindlinear programming problem
    2D/3D problem?no

    Additional fieldssize and type
    bfull 528185-by-1
    cfull 1377306-by-1
    lofull 1377306-by-1
    hifull 1377306-by-1
    z0full 1-by-1


    Hans Mittelmann test set,
    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 COLAMD35,643,604,663
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD1,319,000,879

    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.