Dear all,
I have a question about preconditioned solvers. So, I have a
Sparsematrix, say A, and now for some reason I would like to add some
rank-one term u v^T to that matrix.
As far as I know about Petsc, I can define the action of this matrix
with MatShell. But is it possible to adapt the preconditioner (like a
AMG) of my KSP to handle that kind of MatShell?
Kind Regards
Elias
--
Dr Elias Karabelas
Medical University of Graz
Institute of Biophysics
Harrachgasse 21/IV
8010 Graz, Austria
Phone: +43 316 380 7759
Email: [email protected]
Web : http://forschung.medunigraz.at/fodok/staff?name=EliasKarabelas
