[petsc-dev] Jed will not be happy

[David Ketcheson]

For plotting purposes, linear interpolation is fine.  There are other things
we could do with higher order interpolation, but they're not critical yet.

-David

On Sun, Aug 14, 2011 at 9:45 AM, Aron Ahmadia <aron.ahmadia at kaust.edu.sa>wrote:

> I'm pretty sure our needs are simple for image coarsening, but I'm going to
> cc Manuel and David because I seem to recall that the levels of linear
> interpolation available on PETSc grids are only suitable for image
> rendering, not, for example, obtaining an accurate low-resolution coarsening
> of a solution that you could do numerical analysis on, and I don't remember
> if they had grander ambitions for DA interpolation before they discovered
> petsc-3.1's current limitations.
>
> A
>
> On Sun, Aug 14, 2011 at 9:29 AM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
>
>> On Sun, Aug 14, 2011 at 01:21, Aron Ahmadia <aron.ahmadia at kaust.edu.sa>wrote:
>>
>>> For what it's worth, one of the PetClaw features (grid coarsening for 2D
>>> image rendering), relies on interpolation working for 1 and 2-dimensional
>>> uniform and periodic grids, so having this code ready would be useful to us
>>> as well.
>>
>>
>> Cool, we all agree that the simple periodic case has to work for the
>> release.
>>
>> Is this application using a linear interpolation procedure or is it based
>> on some nonlinear reconstruction?
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20110814/7d48a620/attachment.html>