-pc_type mg

[Barry Smith]

   src/ksp/ksp/examples/tests/ex19.c

On Mar 14, 2009, at 5:47 PM, (Rebecca) Xuefei YUAN wrote:

> Dear all,
>
> Is there any examples that use mg as a preconditioner? How could I  
> add my own restriction/prolongation matrix?
>
> Thanks,
>
> Rebecca