Re: [Libmesh-devel] FE::inverse_map() not converging...

[Derek G. <fri...@gm...>]

Wow... now I know better than to volunteer my time out loud ;-)

After thinking more about this while laying in bed last night.... I
think just returning a point that is obviously outside of the
reference element will be fine for now.  I looked at some of the
inverse_map calls that converged and they usually do it very
quickly... and really it's not that many ops (surely not enough to
pull me off my other tasks).  So for now I think this will do.
Also... I think it would actually be kinda difficult to manually code
up contains_point() for some of the elements...

BTW... do we _not_ have this inverse map coded somewhere?  I
understand that inverse_map is used in other circumstances as well...
but for contains_point() don't we have a jacobian sitting around
somewhere that we could use to compute where the point is in the
reference domain?  Or maybe I'm not understanding things
completely....

Roy... moving the build process to Automake would be a great project
for me... and I would love to do it.  Let me get a little more off my
plate and I'll start looking into it.  One of the reasons I would love
to see this happen is so that IDE's (such as Kdevelop) would work a
lot better with libmesh.  Currently they are just glorified
editors....

Thanks to everyone who helped me with debugging this!  I really appreciate it!

Derek

On 6/23/06, Roy Stogner <roy...@ic...> wrote:
> On Fri, 23 Jun 2006, Roy Stogner wrote:
>
> > Hey!  If we've got a volunteer on our hands, I want to see the FE
> > shape function initialization better optimized and the build process
> > moved to automake.
>
> You know, as long as I'm writing my wishlist:
>
> For quite a while now (ever since I wrote that "subactive elements"
> hack), we've had the capability to get multigrid linear systems out of
> any System class with a side effect free assembly() function.  We've
> also got most of the code necessary to write transfer matrices in
> System::project_vector().  If anyone's looking for a thankless coding
> task, it would be nice to figure out how to hook all this stuff into
> PETSc and LASPACK.
> ---
> Roy
>
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