Re: [Libmesh-devel] Running PETSc-SuperLU in optimized mode

[Mathias N. <mne...@tu...>]

John Peterson wrote:
> On Thu, Jul 10, 2008 at 9:02 AM, Mathias Nenning <mne...@tu...> wrote:
>   
>> John Peterson wrote:
>>     
>>> Off the top of my head I'd have to guess it's the -mat_type argument,
>>> since that option is relatively untested as far as I know.
>>>
>>>
>>>       
>> This means I can't use SuperLU in optimized mode?
>>     
>
> Not until we figure out the bug anyway...
>
> Taking a look at petsc_matrix.C, I see that we do call
> MatSetFromOptions() after MatCreateSeqAIJ and MatCreateMPIAIJ, which
> I'm assuming is the correct syntax.  So it should be respecting your
> command line argument, but I'm not sure why it wouldn't work beyond
> there in optimized petsc but it does work in debug petsc.  Maybe a
> petsc bug? 
That's my guess, too
>  Anyway, it will be hard to diagnose without debugging
> symbols.
>
>
>   
>> Now I tried to run the programm just using
>>
>> ./programm -pc_type lu
>>
>> and it works...
>> But know I'm not shure about what kind of LU-solver is used.
>>     
>
> I believe it's a serial LU solver only.
>
>   
Thanks anyways , I'm fine with that at the moment!