Matrix: Sandia/ASIC_100ks

Description: Sandia, Xyce circuit simulation matrix (base)

Sandia/ASIC_100ks graph
(undirected graph drawing)

Sandia/ASIC_100ks dmperm of Sandia/ASIC_100ks

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  • Matrix group: Sandia
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  • download as a MATLAB mat-file, file size: 2 MB. Use UFget(1416) or UFget('Sandia/ASIC_100ks') in MATLAB.
  • download in Matrix Market format, file size: 3 MB.
  • download in Rutherford/Boeing format, file size: 2 MB.

    Matrix properties
    number of rows99,190
    number of columns99,190
    nonzeros578,890
    structural full rank?yes
    structural rank99,190
    # of blocks from dmperm249
    # strongly connected comp.249
    explicit zero entries0
    nonzero pattern symmetrysymmetric
    numeric value symmetry 0%
    typereal
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorR. Hoekstra
    editorT. Davis
    date2006
    kindcircuit simulation problem
    2D/3D problem?no

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD1,868,974
    Cholesky flop count7.0e+08
    nnz(L+U), no partial pivoting, with AMD3,638,758
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD55,829,898
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD108,300,215

    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.