[petsc-users] GAMG

[Jeremy Theler]

>         
>         If I do not call PCSetCoordinates() the error goes away but
>         convergence
>         is slow.
> Is it possible that your coordinates lie on a 2D surface? All this
> does is make the 6 basis vectors
> for translations and rotations. You can just make these yourself and
> call MatSetNearNullSpace()
> and see what you get.
> 
No, they do not lie on a 2D surface :-/

Sorry but I did not get the point about the 6 basis vectors and
MatSetNearNullSpace().

--
jeremy