[petsc-users] Divergence when using Line Search

[behzad baghapour]

OK. Thank you very much.

On Thu, Jan 5, 2012 at 5:15 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> On Thu, Jan 5, 2012 at 07:31, behzad baghapour <behzad.baghapour at gmail.com
> > wrote:
>
>> I used SNES with LS cubic and basic. In some cases the cubic model can
>> stabilised the global convergence BUT in some case it fails while the basic
>> model has given better convergence !!!
>>
>
> Yes, this happens sometimes. Which is better depends on the local shape of
> the nonlinearity. Just try both and use whichever performs better for your
> problem.
>
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