[petsc-users] multigrid implementation problem

[Jed Brown]

On Sun, Jun 10, 2012 at 8:19 PM, Nakib Haider Protik <nprot048 at uottawa.ca>wrote:

> With the suggested changes, the code doesn't run.
>

You didn't state the error or show the code.


> Is there any example
> code of KSP solvers using multigrid preconditioning? All the examples of
> multigrid I have come across involve dmmg.
>

Please upgrade to petsc-3.3. DMMG is gone and most examples support
multigrid. In most cases, you can just run with -pc_type mg.
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