dolfin team mailing list archive

[Nuno David Lopes <ndl@xxxxxxxxxxxxxx>]

I'm not able to see problems for instance in the convection-diffusion demo, 
after 38 steps.
So i'll guess that reducing it to a small problem to find the bug will not be 
easy.

I will try to clean and comment a little more my code, and if i find that i'm 
not doing something really stupid, and if the bug persists i'll send my code.
It's a   3D stokes  problem with taylor-hood  elements solved by an uzawa 
algorithm.


On Thursday 04 September 2008, Garth N. Wells wrote:
> Can you send an example that reproduces the problem? Say for a 2x2 matrix?
>
> Garth
>
> Nuno David Lopes wrote:
> > I guess there is a bug on
> > factorize, factorized_solve....factorizedSolve or in some related
> > function.
> >
> > Some of my results with factorize and factorized_solve, before
> > UmfpackLUSolver and uBlas->uBLAS changes, are completely different from
> > the new ones.
> >
> > I've tested with PETSc, and with uBLAS without factorization and I've
> > recovered the good solutions.



-- 
Nuno David Lopes

e-mail:ndl@xxxxxxxxxxxxxx        (FCUL/CMAF)
           nlopes@xxxxxxxxxxxxxxx    (ISEL)
http://ptmat.ptmat.fc.ul.pt/%7Endl/ 

Fri Sep  5 10:23:31 WEST 2008