[petsc-users] question about Neumann boundary condition

[Jed Brown]

There is not a PETSc function to set Dirichlet conditions. There are many
ways to do it, you should pick a way they works well for your problem.

I think you might misunderstand KSPSetNullSpace.
On Dec 5, 2011 6:59 PM, "Hailong Xiao" <xiaohl1986 at gmail.com> wrote:

> Hi
>
> I am solving an elliptic problem with Neumann boundary condition with dmda
> routines by snes solver.
> I set up the residue by DMDASetLocalFunction.
> Besides the way like fix the first value to be one by myself, is there way
> to do it by petsc routine? like the KSPSetNullSpace() rountine does?
>
> --
> Hailong
>
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