Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

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

  • 22-10-2010 8:54pm
    #1
    mlmcelligott
    Registered Users, Registered Users 2 Posts: 249 ✭✭


    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.
    Tagged:


Comments

  • #2
    bnt
    Registered Users, Registered Users 2 Posts: 13,077 ✭✭✭✭bnt


    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.

    You are the type of what the age is searching for, and what it is afraid it has found. I am so glad that you have never done anything, never carved a statue, or painted a picture, or produced anything outside of yourself! Life has been your art. You have set yourself to music. Your days are your sonnets.

    ―Oscar Wilde predicting Social Media, in The Picture of Dorian Gray



  • #3
    dheagney
    Registered Users, Registered Users 2 Posts: 5 ✭dheagney


    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/


Advertisement