El 07/11/2014, a las 15:45, Denis Davydov escribió: > >> What do you mean by 'breaks convergence'? Are you sure your matrices are >> symmetric? >> Jose > > I shall clarify that the calculated by EPSComputeResidualNorm residual norm > is bigger than the required tolerance, set by EPSSetTolerances. > > In light of your latest answer about B-norms, > supposedly this is a wrong approach. > > Sorry for being un-precise initially. > > Regards, > Denis.
Yes, EPSComputeResidualNorm uses the 2-norm. Maybe it would be better if the stopping criterion in symmetric problems would be more similar to the non-symmetric case. I will think about it. It would be good if you could send me sample matrices (to my personal email). Jose
