bug in tfs preconditioner

[Barry Smith]

On Oct 7, 2009, at 11:37 AM, Jed Brown wrote:

> On Wed, Oct 7, 2009 at 18:33, Barry Smith <bsmith at mcs.anl.gov> wrote:
>> There is seemingly very little use of tfs.
>
> Paul said that it has evolved a bit and what they are using in Nek is
> significantly improved.  I wonder how much work it would be to update
> the implementation in PETSc.

    I don't think that it is the TFS solver itself that significantly  
improved. I think it is the new/different algorithms they use in Nek  
that are better.

    Barry

>
> Jed