Matrix BCSSTK30

BCSSTK30: BCS Structural Engineering Matrices (large eigenvalue problems)
Statics module of an off-shore generator platform

from set BCSSTRUC5, from the Harwell-Boeing Collection

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Stiffness matrix

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Compressed MatrixMarket format file: bcsstk30.mtx.gz (2342646 bytes)

Compressed Harwell-Boeing format file: bcsstk30.psa.gz (583192 bytes)

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Visualizations

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Structure Plot

Matrix Statistics

 
    * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
    *                           Matrix Statistics                             *
    *              Generated by Yousef Saad's SPARSKIT Library                *
    * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
    * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
    * TIFFNESS MATRIX FOR OFF-SHORE GENERATOR PLATFORM (MSC NASTRAN) - PATTER *
    *                    Key = BCSSTK30 , Type = PSA                          *
    * No values provided - Information on pattern only                        *
    * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        *  Dimension N                                      =      28924  *
        *  Number of nonzero elements                       =    1036208  *
        *  Average number of nonzero elements/Column        =    35.8252  *
        *  Standard deviation for above average             =    15.2693  *
        *  Nonzero elements in strict lower part            =    1007284  *
        *  Nonzero elements in strict upper part            =    1007284  *
        *  Nonzero elements in main diagonal                =      28924  *
        *  Weight of longest column                         =        218  *
        *  Weight of shortest column                        =          3  *
        *  Matching elements in symmetry                    =          0  *
        *  Relative Symmetry Match (symmetry=1)             = NaN         *
        *  Average distance of a(i,j)  from diag.           =  0.454E+03  *
        *  Standard deviation for above average             =  0.126E+04  *
        *-----------------------------------------------------------------*
        *  Lower bandwidth  (max: i-j, a(i,j) .ne. 0)       =          0  *
        *  Upper bandwidth  (max: j-i, a(i,j) .ne. 0)       =      16947  *
        *  Maximum Bandwidth                                =      16948  *
        *  Average Bandwidth                                =  0.887E+03  *
        *  Number of nonzeros in skyline storage            =   15715892  *
        *  90% of matrix is in the band of width            =       1429  *
        *  80% of matrix is in the band of width            =        803  *
        *  The total number of nonvoid diagonals is         =       6619  *
        *  The 10 most important diagonals are (offsets)    :             *
        *     0     1     2     3     4     5     6     7     8     9     *
        *  The accumulated percentages they represent are   :             *
        *   2.8   5.3   7.6   9.9  12.1  14.3  16.3  18.2  19.9  21.5     *
        *-----------------------------------------------------------------*
        *  The matrix does not have a block structure                     *
        *-----------------------------------------------------------------*

Set Information

Set BCSSTRUC5
Source:	Boeing Computer Services
Discipline:	Structural engineering
Accession:	Spring 1986

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