Matrix: Bova/rma10

Description: 3D CFD model, Charleston harbor. Steve Bova, US Army Eng., WES

Bova/rma10 graph
(undirected graph drawing)

Bova/rma10 dmperm of Bova/rma10
scc of Bova/rma10

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  • Matrix group: Bova
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  • download as a MATLAB mat-file, file size: 13 MB. Use UFget(374) or UFget('Bova/rma10') in MATLAB.
  • download in Matrix Market format, file size: 19 MB.
  • download in Rutherford/Boeing format, file size: 15 MB.

    Matrix properties
    number of rows46,835
    number of columns46,835
    structural full rank?yes
    structural rank46,835
    # of blocks from dmperm8
    # strongly connected comp.8
    explicit zero entries44,909
    nonzero pattern symmetrysymmetric
    numeric value symmetry 24%
    Cholesky candidate?no
    positive definite?no

    authorS. Bova
    editorT. Davis
    kindcomputational fluid dynamics problem
    2D/3D problem?yes

    Additional fieldssize and type
    bfull 46835-by-1

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD4,393,513
    Cholesky flop count7.1e+08
    nnz(L+U), no partial pivoting, with AMD8,740,191
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD7,229,037
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD16,980,075

    Note that all matrix statistics (except nonzero pattern symmetry) exclude the 44909 explicit zero entries.

    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.