[petsc-users] dmda and structures

[Jed Brown]

Gideon Simpson <gideon.simpson at icloud.com> writes:

> I believe I've gotten things to work in both cases, but I wanted to
> clarify what the substantial difference between DMDAVecGetArray and
> DMDAVecGetArrayDOF.  Is it just that it allows me to do indexing of
> the form realization_array[i][j] instead of realization_array[i *
> num_dof +j], 

That's all.  It does that by using an extra set of pointers.

> in terms of how things are distributed?

No difference in distribution.
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