[petsc-users] preconditioner for contact / mesh tying problem

[Hoang Giang Bui]

Hi Jed
That's a great idea. Do you have any ex* to start with? Or suggesting me a
starting point.

Thanks
Giang

On Tue, Oct 18, 2016 at 3:49 AM, Jed Brown <jed at jedbrown.org> wrote:

> Hoang Giang Bui <hgbk2008 at gmail.com> writes:
>
> > Dear PETSc folks,
> >
> > While searching literature on the preconditioner for contact/mesh tying
> > problem, I saw the paper by Dr. Adams "Algebraic multigrid methods for
> > constrained linear systems with applications to contact problems in solid
> > mechanics, NLAA, 2004". Given the promising aspects the paper has shown
> for
> > constrained linear system, I wonder if some code's also available in
> PETSc
> > for testing/further extension?
>
> This particular algorithm is not available within the PETSc library.
> Mark might have some code around, but I doubt it's maintained or easy to
> tinker with.  You should be able to implement the algorithm fairly
> quickly using PETSc.  It would make a great example if you're willing to
> contribute.  And we can advise if you decide to write such an example.
>
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