[petsc-users] PETSc / AMRex

Mark Adams mfadams at lbl.gov
Tue Jun 21 11:00:42 CDT 2022

Hi Bernigaud,

To be clear, you have SNES working with DMDA in AMRex, but without adapting
dynamically and you want to know what to do next.

Is that right?


On Tue, Jun 21, 2022 at 11:46 AM Bernigaud Pierre <pierre.bernigaud at onera.fr>

> Greetings,
> I hope you are doing great.
> We are currently working on parallel solver employing PETSc for the main
> numerical methods (GMRES, Newton-Krylov method). We would be interested
> in combining the PETSc solvers with the AMR framework provided by the
> library AMReX (https://amrex-codes.github.io/amrex/). I know that within
> the AMReX framework the KSP solvers provided by PETSc can be used, but
> what about the SNES solvers? More specifically, we are using a DMDA to
> manage parallel communications during the SNES calculations, and I am
> wondering how it would behave in a context where the data layout between
> processors is modified by the AMR code when refining the grid.
> Would you have any experience on this matter ? Is there any
> collaboration going on between PETsc and AMReX, or would you know of a
> code using both of them?
> Respectfully,
> Pierre Bernigaud
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