[petsc-users] Example for unstructured grid, metis, petsc

[Mohammad Mirzadeh]

Matt,


> Yes. It is working on SNES ex12, ex62, and TS ex11. We have some more work
> to do testing adaptivity, but simple
> gradient indicators are working right I think.
>
>   Thanks,
>
>      Matt
>

Is there a document/todo-list sort of thing that outlines the roadmap with
p4est integration? What things are done/remains to do sort of draft?

Best,
Mohammad


>
>
>> Giang
>>
>> On Mon, Aug 22, 2016 at 12:45 PM, Matthew Knepley <knepley at gmail.com>
>> wrote:
>>
>>> On Mon, Aug 22, 2016 at 4:05 AM, Praveen C <cpraveen at gmail.com> wrote:
>>>
>>>> Dear all
>>>>
>>>> We are developing a 3d unstructured grid finite volume code for
>>>> compressible turbulent flows.
>>>>
>>>> Our approach is to use metis/parmetis to partition the mesh.
>>>> Then read these partitioned mesh files in the MPI-based cfd code for
>>>> computation.
>>>>
>>>> Are there any examples available in PETSc which are similar to this.
>>>>
>>>
>>> That is a pretty difficult problem. The closest example we have is
>>> probably TS ex11, which can solve
>>> things like the shallow water equation and Euler. Currently it reads in
>>> a mesh, partitions in memory,
>>> and distributes the mesh using MPI. After that it can regularly refine.
>>> In the next release, we will
>>> introduce the ability to
>>>
>>>   - read a mesh in parallel
>>>
>>>   - adaptively refine in parallel using the Pragmatic package
>>>
>>>   - load balance after adaptive refinement
>>>
>>>   - use adaptive quadtree meshes from p4est
>>>
>>>   Thanks,
>>>
>>>      Matt
>>>
>>>
>>>> Thanks
>>>> praveen
>>>>
>>> --
>>> What most experimenters take for granted before they begin their
>>> experiments is infinitely more interesting than any results to which their
>>> experiments lead.
>>> -- Norbert Wiener
>>>
>>
>>
>
>
> --
> What most experimenters take for granted before they begin their
> experiments is infinitely more interesting than any results to which their
> experiments lead.
> -- Norbert Wiener
>
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