On Monday, April 30, 2018 at 7:13:26 AM UTC+2, Denis Davydov wrote: > > > > > On 30 Apr 2018, at 04:54, Wolfgang Bangerth <[email protected] > <javascript:>> wrote: > > > > On 04/28/2018 10:36 PM, Denis Davydov wrote: > >> As far as as recall there just a few things left related to complex > numbers. > >> The biggest one is complex-valued Dirichlet constraints in > ConstraintMatrix object > >> https://github.com/dealii/dealii/issues/1760 > >> That's not possible yet. Otherwise all the solvers and linear algebra > is ready. So you can certainly assemble system and solve it. > > > > Denis -- out of curiosity, what solver are you using for complex-valued > linear systems? I don't think the deal.II SolverGMRES class works, and > obviously the other iterative solvers don't either. Nor does UMFPACK. > > I would not be so sure about it, but I have not tried either. > I am quite certain complex-valued PETSc will work. > > ps. I don’t use any of them, some time ago I invested a lot of efforts to > push forward > complex-valued algebra in deal.II (which was also followed by others), but > strangely enough I never used it. > > > I will write the first version of the code with real/imag separation and UMFPACK. This works well with PML matrices.
Then I will modify the code and use complex-valued algebra with PETSc. This is an extra-step, but it will allow to compare the results. Best, Daniel -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
