[petsc-users] ml precondioner

[Jed Brown]

On Thu, Jun 14, 2012 at 2:35 PM, Nakib Haider Protik <nprot048 at uottawa.ca>wrote:

> I am running 3.0.0-p12. Upgrading to 3.3 has proven difficult for me.
>

Do it now. It should be easier, not harder. If you get stuck, send all the
log files to petsc-maint.


>
> In my version I used -mg_levels_ksp_type chebychev and the error is
> greater than both ordinary gmres with lu, and ml with gmres and lu on each
> level. Also, it takes a very long time to converge for even a 200 x 200
> grid.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120614/ca083c09/attachment.html>