On 1/20/25 09:00, Lucas P wrote:
Thanks Wolfgang for your answer. But I'm surprised to see that some work
should be done regarding the iterative solvers. I would expect that deal.ii
relies on PETSc to use iterative solvers. And since PETSc can handle complex
numbers, I would not have expected this to be a problem.
Oh, sure, if you want to use the PETSc solvers I, too, would expect those to
work. The issue is more that if you want to use the PETSc solvers, you can't
use block solvers, you have to recompile PETSc to support complex numbers,
etc. It's a hassle. But if you know that all you want to do is solve a
non-block-matrix, PETSc may very well be your simplest choice. Everything
else, I believe, should be in place or should be easily fixable.
If you do go down that route, please do report back whether you made it work
and what it took. That might make for a nice point of experience for others
wondering about the same issue.
Best
W.
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