Matrix: Mittelmann/pds-30

Description: Patient distribution (evacuation) system

Mittelmann/pds-30 graph
(bipartite graph drawing)


Mittelmann/pds-30 dmperm of Mittelmann/pds-30
scc of Mittelmann/pds-30

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  • download as a MATLAB mat-file, file size: 802 KB. Use UFget(1646) or UFget('Mittelmann/pds-30') in MATLAB.
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    Matrix properties
    number of rows49,944
    number of columns158,489
    nonzeros340,635
    structural full rank?no
    structural rank49,788
    # of blocks from dmperm967
    # strongly connected comp.157
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    typeinteger
    structurerectangular
    Cholesky candidate?no
    positive definite?no

    authorW. Carolan, J. Hill, J. Kennington, S. Niemi, S. Wichmann
    editorH. Mittelmann
    date1990
    kindlinear programming problem
    2D/3D problem?no

    Additional fieldssize and type
    bfull 49944-by-1
    cfull 158489-by-1
    lofull 158489-by-1
    hifull 158489-by-1
    z0full 1-by-1

    Notes:

    Hans Mittelmann test set, http://plato.asu.edu/ftp/lptestset       
    minimize c'*x, subject to A*x=b and lo <= x <= hi                  
                                                                       
    PDS:  Patient distribution (evacuation) system. see                
    W. Carolan, J. Hill, J. Kennington, S. Niemi, and S. Wichmann, "An 
    Empirical Evaluation of the KORBX Algorithms for Military Airlift,"
    Applications, Operations Research, 38, (1990), 240-248.            
    

    Ordering statistics:result
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD432,302,882
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD14,114,830

    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.