Group TKK

Group Description
Matrices from Reijo Kouhia, Structural Mechanics, Helsinki Univ. of Technology
(Teknillinen Korkeakoulo)

http://users.tkk.fi/~kouhia/sparse.html

Sparse matrix test problems
These matrices are stored either in the compressed column format (Harwell-Boeing format, see I. Duff et al.: Sparse Matrix Test Problems, ACM Transactions on Mathematical Software, Vol. 15 No. 1, March 1989, 1-14) or in the MatrixMarket coordinate format (R.F. Boisvert et al.: The Matrix Market Exchange Formats: Initial Design, NISTIR 5935, 1996). Description of both formats can be found from MatrixMarket.

    * Cylindrical shell problems: Short description (html), and slightly more
      informative documentation (gzipped postcript-file cylshell.ps.gz, size
      205 k).

  The following matrices can be found from the MatrixMarket in the set CYLSHELL

      o Cyl shell, R/t = 10, unif 30 x 30 quadrilateral mesh, N = 5489,
         NZ = 143300, triangular mesh NZ = 112505,
      o Cyl shell, R/t = 100, unif 30 x 30 quadrilateral mesh, N = 5489,
         NZ = 143300, triangular mesh NZ = 112505,
      o Cyl shell, R/t = 1000, unif 30 x 30 quadrilateral mesh, N = 5489,
         NZ = 143300, triangular mesh NZ = 112505
      o Cyl shell, R/t = 1000, unif 100 x 150 quadrilateral mesh, N = 90449,
         NZ = 2455670, triangular mesh NZ = 1921955
      o Cyl shell graded mesh with 1666 triangles R/t = 1000, N = 5357,
         NZ = 106526,

Matrices in this group:

    Kouhia/s4dkt3m2
    Kouhia/g3rmt3m3
    Kouhia/t520
    Kouhia/smt
    Kouhia/engine
    Kouhia/plbuckle
    Kouhia/cbuckle
    Kouhia/cyl6
    Kouhia/tube1
    Kouhia/tube2
    Kouhia/t2d_q4
    Kouhia/t2d_q9

Matrices from Reijo Kouhia in other matrix groups:

    Cylshell/s1rmq4m1
    Cylshell/s2rmq4m1
    Cylshell/s3rmq4m1
    Cylshell/s1rmt3m1
    Cylshell/s2rmt3m1
    Cylshell/s3rmt3m1
    Cylshell/s3rmt3m3
    GHS_psdef/s3dkq4m2
    GHS_psdef/s3dkt3m2


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s4dkt3m2
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  Some additional cases not in MatrixMarket:
      o Cyl shell R/t = 10000, unif 100 x 150 triangular mesh,
             s4dkt3m2.dat.gz , N = 90449, NZ = 1921955

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g3rmt3m3
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      o g3rmt3m3.dat.gz 

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t520.hb.gz, t520.load.gz
--------------------------------------------------------------------------------

    * T-beam: t520.hb.gz , load vector, t520.load.gz ,

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smt.hb.gz, smt.mtx.gz
--------------------------------------------------------------------------------

    * 3-D solid model from a thermal stress analysis of a surface mounted
      transistor, N = 25710, NZ = 1889447,
      1704 triquadratic Serendipity 20 node brick elements, four different
      materials.  HB-format file smt.hb.gz, MM-format file smt.mtx.gz,
      figure of the FE-model: smt.ps.gz

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engine.hb.gz, engine.rhs.gz
--------------------------------------------------------------------------------

    * 3-D solid model from a thermal stress analysis of an engine head: matrix
      in HB-format: engine.hb.gz, rhs-vector: engine.rhs.gz

--------------------------------------------------------------------------------
eigen/plb_k, eigen/plb_g -> renamed plbuckle
--------------------------------------------------------------------------------

    * Double eigenvalue plate buckling problem: stiffness matrix and initial
    stress matrix .  Symmetric matrices, upper triangle is stored in coordinate
    format.

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ck.dat, cg.dat -> renamed cbuckle
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    * Compressed cylindrical shell -- buckling problem: stiffness matrix and
      initial stress matrix .  Symmetric matrices, lower triangle is stored in
       coordinate format N = 13681.

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cyl6, v_6_[0,1,2]
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    * Cylindrical shell, from non-linear analysis, indefinite: HB-format file
         cyl6.dat.gz Symmetric matrix N = 13681, NZ = 363961.
          Some rhs vectors at step 6 v_6_0.rhs, v_6_1.rhs, v_6_2.rhs

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tube*
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    * Tube, SPD matrix: HB-format file tube1.dat.gz Symmetric matrix N = 21498,
         NZ = 459277.  HB-format file tube1-2.dat.gz Symmetric matrix N = 21498,
         NZ = 459277, load vector tube1-2.load.gz

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t2d_q4
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    * Non-linear diffusion problem, sequence of matrices and rhs-vectors. These
      matrices are in the compressed sparse row format (CSR). 100x100 bilinear
      mesh (41 MB)

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t2d_q9
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    * Non-linear diffusion problem, sequence of matrices and rhs-vectors. These
      matrices are in the compressed sparse row format (CSR)
      50x50 biquadratic mesh (87 MB). Temperature field. 


The following data was not imported into the UF Sparse Matrix Collection:

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mesh2
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  Node-unknown data for mesh 2 (100 x 150 element mesh)
Displaying all 12 collection matrices
Id Name Group Rows Cols Nonzeros Kind Date Download File
1915 tube2 TKK 21,498 21,498 897,056 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1914 tube1 TKK 21,498 21,498 897,056 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1912 cbuckle TKK 13,681 13,681 676,515 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1913 cyl6 TKK 13,681 13,681 714,241 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1910 engine TKK 143,571 143,571 4,706,073 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1907 g3rmt3m3 TKK 5,357 5,357 207,695 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1911 plbuckle TKK 1,282 1,282 30,644 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1906 s4dkt3m2 TKK 90,449 90,449 3,753,461 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1909 smt TKK 25,710 25,710 3,749,582 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1908 t520 TKK 5,563 5,563 286,341 Structural Problem 2008 MATLAB Rutherford Boeing Matrix Market
1917 t2d_q9 TKK 9,801 9,801 87,025 Structural Problem Sequence 2008 MATLAB Rutherford Boeing Matrix Market
1916 t2d_q4 TKK 9,801 9,801 87,025 Structural Problem Sequence 2008 MATLAB Rutherford Boeing Matrix Market