Okay, that makes sense.

The PETSc error I am getting is the sum of the local lengths (10200) is 
larger than the global length (1020) so I think I need to just read the 
documentation more because it looks like I am just not using the API 
appropriately.

Thank you,
Zachary

On Monday, December 21, 2020 at 11:27:18 AM UTC-6 Wolfgang Bangerth wrote:

> On 12/21/20 10:16 AM, Zachary Streeter wrote:
> > Sorry, I should say the relevant elements are the same as the locally 
> owned. 
>
> That's true for cells but not for degrees of freedom. There may be DoFs 
> that 
> are located on the faces between locally owned and ghost cells. These may 
> be 
> owned by the neighboring ghost cell and so they are "locally relevant" 
> (relevant to the locally owned cells) but not locally owned.
>
> You may want to take a look at the corresponding entries in the glossary.
>
> Best
> W.
>
> -- 
> ------------------------------------------------------------------------
> Wolfgang Bangerth email: [email protected]
> www: http://www.math.colostate.edu/~bangerth/
>
>

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