fenics team mailing list archive

[Andy Ray Terrel <aterrel@xxxxxxxxxxxx>]

Anders Logg wrote:
> On Wed, Mar 26, 2008 at 08:08:10AM -0500, Andy Ray Terrel wrote:
>   
> > Hello Evan,
> >
> > I would look at start at the demos (dolfin/src/demo/pde). The 
> > mixedpoisson and stokes demos have vector elements, unfortunately in my 
> > quick test it looks like Nedelec hasn't been fully integrated in dolfin 
> > just yet. The convectiondiffusion demo gives some time stepping routines 
> > that might be helpful.
> >
> > -- Andy
> >     
>
> What's the problem with Nedelec? I thought it worked.
>
>   

First time I tried using it I got:

terminate called after throwing an instance of 'std::runtime_error'
 what():  evaluate_dof not implemented for this type of element
Abort trap

Which comments in ffc claim that nedelec is not supported for the 
evaluate_basis functions.

If I just stick to the mixed poisson demo it works fine, but it is 
producing a different picture than the BDM element.  Of course this 
could just be that the plotting is not really doing the right thing.

I guess it really depends on what you mean by working, although the 
issues I bring up could not be important for a specific user.

-- Andy

====================
Andy Terrel
Computer Science Dept
University of Chicago
aterrel@xxxxxxxxxxxx
---------------------

Failure has a thousand explanations,
Success doesn't need one.
                  -Sir Alec Guiness