Matrix: Rajat/rajat02

Description: Rajat/rajat02 circuit simulation matrix

Rajat/rajat02 graph
(undirected graph drawing)

Rajat/rajat02 dmperm of Rajat/rajat02
scc of Rajat/rajat02

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  • Matrix group: Rajat
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  • download as a MATLAB mat-file, file size: 17 KB. Use UFget(1186) or UFget('Rajat/rajat02') in MATLAB.
  • download in Matrix Market format, file size: 16 KB.
  • download in Rutherford/Boeing format, file size: 15 KB.

    Matrix properties
    number of rows1,960
    number of columns1,960
    structural full rank?yes
    structural rank1,960
    # of blocks from dmperm58
    # strongly connected comp.10
    explicit zero entries0
    nonzero pattern symmetrysymmetric
    numeric value symmetrysymmetric
    Cholesky candidate?no
    positive definite?no

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

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD8,074
    Cholesky flop count3.6e+04
    nnz(L+U), no partial pivoting, with AMD14,188
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD204,210
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD520,502

    SVD-based statistics:
    null space dimension452
    full numerical rank?no
    singular value gap1.26826e+12

    singular values (MAT file):click here
    SVD method used:s = svd (full (A)) ;

    Rajat/rajat02 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.