Sparse matrix generator for test cases for sparse-SOR to solve Ax=b

mlmcelligott · 22-10-2010 09:54PM #1

Hi

I have to find several different types of sparse matrix to use as a test for a sparse - SOR algorithm to solve Ax=b my project team are testing.

Is there any online matrix generator where i can specify the size of the matrix and choose whether it is row or column diagonally dominant or have zeros on the diagonal or not.

bnt · 23-10-2010 12:13AM

Have you seen the U.Florida collection, here? They have a Java tool for selecting according to certain criteria, including size and symmetry. Alternatively, you could use the sparse matrix functions in MATLAB or Octave.

dheagney · 20-10-2012 10:20AM

mlmcelligott wrote: »

Hi

I have to find several different types of sparse matrix to use as a test for a sparse - SOR algorithm to solve Ax=b my project team are testing.

Is there any online matrix generator where i can specify the size of the matrix and choose whether it is row or column diagonally dominant or have zeros on the diagonal or not.

Hi there - any chance you might be willing to share your code? Have you done this in JAVA?

Here's a good site which produces matrices you can test your program with http://math.nist.gov/MatrixMarket/

Sparse matrix generator for test cases for sparse-SOR to solve Ax=b

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