[petsc-users] 2D ploar domain

[Matthew Knepley]

On Wed, May 9, 2018 at 2:34 PM, Amir <mhbaghaei at mail.sjtu.edu.cn> wrote:

> Hello
> I have a 2D polar computational domain, which equation specified on a
> tensor-product mesh.As I increase the number of nodes at the near center, I
> encounter that the LineSearch which I use generallly as bt, does not go
> well. In fact, I would not be able to converge. Do you have any idea on
> this?
>

The convergence of nonlinear iterations depends strongly on the equation
being solved. Its hard for us to say anything.
Maybe with more specifics, but there is not a lot that can be said.

  Thanks,

    Matt


> Thanks
> Amir
>
> [image: Open Tracking]




-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.caam.rice.edu/~mk51/>
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