[petsc-users] Differential operators in PETSc

[Dominik Szczerba]

A side question: would that mean that the said set of operators is
there already for regular structured (topologically Cartesian) grids?

On Tue, Jan 3, 2012 at 1:47 PM, Tim Gallagher <tim.gallagher at gatech.edu> wrote:
> I would also be interested in discussing staggered grids, both how to do
> them correctly and best ways to do them with what we've got in PETSc
> currently.
>
> Tim
>
> ________________________________
> From: "Jed Brown" <jedbrown at mcs.anl.gov>
> To: "PETSc users list" <petsc-users at mcs.anl.gov>
> Sent: Tuesday, January 3, 2012 7:28:35 AM
> Subject: Re: [petsc-users] Differential operators in PETSc
>
>
> On Tue, Jan 3, 2012 at 03:22, Alexander Grayver <agrayver at gfz-potsdam.de>
> wrote:
>>
>> I want to implement general procedures to generate discretized
>> differential operators (like grad,div,curl,laplacian) using PETSc and
>> staggered structured grids.
>> Before I start, I am wondering if there is something similar in PETSc
>> already?
>
>
> PETSc does not have specific support for staggered grids at this time. There
> are a few ways to do it, but none are ideal and we have a proposal pending
> in which one item is to improve staggered grid support (but we won't hear
> back for several months). If you want to do this, it would be useful to
> discuss how to manage staggered grids. The petsc-dev list would be the best
> place for those discussions.
>