• UF Sparse Matrix Collection
  • Matrix group: Brethour
  • Click here for a description of the Brethour group.
  • Click here for a list of all matrices
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  • Matrix: Brethour/coater2
  • Description: Tail end of a converging slot coater. J. Brethour, CEMS, U. Minn
  • download as a MATLAB mat-file, file size: 2 MB. Use UFget(376) or UFget('Brethour/coater2') in MATLAB.
  • download in Matrix Market format
  • download in Rutherford/Boeing format

    Brethour/coater2

    dmperm of Brethour/coater2

    scc of Brethour/coater2

    Brethour/coater2 graph

    Matrix properties
    number of rows9,540
    number of columns9,540
    nonzeros207,308
    structural full rank?no
    structural rank9,434
    # of blocks from dmperm207
    # strongly connected comp.382
    explicit zero entries0
    nonzero pattern symmetry 59%
    numeric value symmetry 13%
    typereal
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorJ. Brethour
    editorT. Davis
    date1997
    kindcomputational fluid dynamics problem
    2D/3D problem?yes

    Ordering statistics:AMD METIS
    nnz(chol(P*(A+A'+s*I)*P'))689,125 711,016
    Cholesky flop count8.2e+07 8.4e+07
    nnz(L+U), no partial pivoting1,368,710 1,412,492
    nnz(V) for QR, upper bound nnz(L) for LU1,286,324 1,272,971
    nnz(R) for QR, upper bound nnz(U) for LU3,780,057 3,846,990

    Maintained by Tim Davis, last updated 04-May-2008.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.