Re: PCFactorSetLevels does not work?!

[Zhifeng Sheng <z.sheng@xxxxxxxxxxxxxx>]

Barry Smith wrote:

>   Are you calling the PCFactorSetLevels() on the prec where the
> ICC is being used. For example if your * below means 
> -sub_pc_factor_levels then you need to use
> PCBJacobiGetSubKSP() then get the PC out of that that subksp
> and call the PCFactorSetLevels() on that
>
>  Barry
>
>
> On Wed, 31 Oct 2007, Zhifeng Sheng wrote:
>
>  
>
> > Dear all
> >
> > I have a weird problem.
> >
> > In my programme, I try to use ICC(K), while I set the factor level with
> >
> > PCFactorSetLevels(prec, 4);
> >
> > However this does not work.
> >
> > Then I run the executable with the option *-pc_factor_levels 4, it works... 
> > Can someone tell me why this is happenning?
> >
> > Thank you
> >
> > Best regards
> > Zhifeng Sheng
> > *
> >
> >
> >    
>
>  
Dear all

I figured out the reason .... DO NOT use KSPSetUP() before you 
configurate you solver and preconditioners, otherwise, your 
configuration shall be ignored.

Best regards
Zhifeng