[petsc-users] interchange between two different DMDAs

[Matthew Knepley]

On Wed, Feb 13, 2019 at 7:25 AM Kun Jiao via petsc-users <
petsc-users at mcs.anl.gov> wrote:

> Hi,
>
>
>
> I have a problem that need to interchange between two different DMDAs.
> They have the exactly same size, however they are distributed/partitioned
> differently across multiple processes. For instance, one DMDA is created
> with DMDACreated1d, the other is created with DMDACreated3d. How can I
> interchange between different DMDAs with VecScatter, or something else?
>

Yes, you would need to use VecScatter. Getting this right sounds
nontrivial. What are you using it for?

  Thanks,

     Matt


>
>
> Regards,
>
> Kun
>
> Schlumberger-Private
>


-- 
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

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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