[petsc-users] Access to factored matrix.

[De Groof, Vincent Frans Maria]

Hi,


I'm looking for a way to access the factor of a matrix to be able to change it. I'm using CHOLMOD for the factorization which uses the cholmod_factor object. The data contained in this object is basically what I want to get access to. Ideally, I'll be able to use the petsc-functions as is. Make some changes to the factored matrix and afterwards continue usingthe petsc-functions.


Do you have any suggestions how this could be done? I had a look at PCFactorGetMatrix, but the matrix does not seem to contain numerical data of the factor.



thanks,
Vincent
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