[petsc-dev] -pc_factor_drop_tolerance

[Hong Zhang]

Petsc ILUDT requires further work - both algorithmic correctness
and performance optimization. Current status is not ready for
users yet.

Shall we take these options off until it is ready?

Hong

On Mar 22, 2010, at 2:51 PM, Jed Brown wrote:

> On Mon, 22 Mar 2010 14:36:50 -0500, Barry Smith <bsmith at mcs.anl.gov>  
> wrote:
>>
>>    You should consider that PETSc currently has no drop tolerance
>> factorizations; what is in the source code is just partial code and
>> partial place holders.
>> We could add this to the manual pages.
>
> There is a man page for PCFactorSetDropTolerance, the user's manual
> discusses it, and the option is available in -help.  I'm just pointing
> out that this is fairly confusing.  The manual also mentions
> PCFactorDTSetReuseFill which does not currently exist.
>
> There seems to be something available with -pc_type icc
> -pc_factor_mat_solver_package bas, but this is actually undocumented  
> so
> I'm not concerned about whether or not it works.
>
> Jed