[petsc-users] odd SNES behavior

[Barry Smith]

  Sorry should be UseAmat


On Mar 11, 2013, at 8:21 AM, "Mark F. Adams" <mark.adams at columbia.edu> wrote:

> Humm, I'm not seeing PCSetUserAmat:
> 
> 09:14  ~/Codes/petsc-dev$ hg grep PCSetUserAmat
> src/docs/website/documentation/changes/dev.html:26440:        <li>Merged PCBJacobiSetUseTrueLocal(), -pc_bjacobi_true_local, PCKSPSetUseTrue(), -pc_ksp_true, PCCompositeSetUseTrue() -pc_composite_true to PCSetUserAmat(), -pc_use_amat. 
> 
> 
> 
> On Mar 8, 2013, at 10:27 AM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> 
>> 
>> On Mar 8, 2013, at 9:23 AM, "Mark F. Adams" <mark.adams at columbia.edu> wrote:
>> 
>>>> 
>>>> I have merged PCBJacobiSetUseTrueLocal(), -pc_bjacobi_true_local, PCKSPSetUseTrue(), -pc_ksp_true, PCCompositeSetUseTrue() -pc_composite_true to PCSetUserAmat(), -pc_use_amat  in petsc-dev.
>>>> 
>>>> Note that other preconditioners, PCMG,  PCFieldSplit, PCASM, PCGASM should adopt the same flag but I will leave that to Mark and Jed.
>>> 
>>> GAMG's problem comes from PCMG, do I need to do anything?
>> 
>>  Yes, modify the PCMG :-). 
>>> 
>>> other than make '-pc_use_amat false' because I would like to match hypre semantics by default.
>> 
>>  It will be false by default.
>> 
>>  Barry
>> 
>> 
>> 
>