On Fri, Feb 10, 2017 at 9:11 AM, Rossi, Simone <[email protected]> wrote:

> Dear Roy,
> thanks for your reply.
> I was worried about the ordering because the exported solution did not
> make sense. It seemed to apply the boundary conditions to the wrong
> elements.
> I learned that the global ordering is general different for different
> fefamilies, but everything is consistent.
> I just was not expecting a different ordering, as I always used the
> continuous elements in libmesh.
>
> In my simple test I had a mesh like this. Using both monomials and
> l2_lagrange ,I was getting 6 dof for each component of the system (2 in 2D,
> so the 12 entries).
>
> X ————X
> |              /  |
> |           /     |
> |        /        |
> |     /           |
> |  /              |
> X———— X
>
>
> Eventually I found out that the way I’m using the exodus exporter with
> discontinuous data is not correct.
> So if I do
> exo_exporter->write_discontinuous_exodusII( … )
> exo_exporter->append(true)
> and then
> exo_exporter->write_timestep( … )
> the exported file is messed up. Is there any other way to do that with
> exodus?
> I ended up using GMV, but I loose the time information.
>

It's possible that write_discontinuous_exodusII() has regressed, we test
that it "works" in miscellaneous_ex5 and systems_of_equations_ex6, but
don't do any gold file comparisons...  If it's possible for you to share a
very simple (2 element) example like this which demonstrates the problem,
we can take a closer look...

-- 
John
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