[petsc-dev] About the refine/coarsen in DM

[Ravindra Chopade]

Hi Changqing,

this Metric Based Adaptation
<https://urldefense.us/v3/__https://petsc.org/release/manual/dmplex/*metric-based-mesh-adaptation__;Iw!!G_uCfscf7eWS!eB6Mm6bN2Re49sXqbWzUKjZYrgjZPTW4yai322b1f2lqFxA0sTnZ79gC9LA-eJaZQzkLNUMW0r8O9R7Ng0lsobmGo-80$ > might
be helpful for you

Thanks
Ravindra


On Wed, Jan 15, 2025 at 10:21 PM Ye Changqing <Ye_Changqing at outlook.com>
wrote:

> Dear PETSc developers,
>
> I am curious about the mystery behind ``refine'' and ``coarsen'' routines
> of DM.
>
> - As mentioned on the webpage, these routines appear to neglect the
> coordinate information associated with the current DM. I suspect that some
> graph-based algebraic operations might be involved. Could you kindly share
> the underlying design principles or implementation strategies behind these
> routines?
>
> Best,
> Changqing
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