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

[John P. <jwp...@gm...>]

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?  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.

-- 
John