[petsc-users] Scale the diagonal entries of a Mat

[Jed Brown]

Add big values to diagonal entries and scale the right hand side
appropriately, as per the definition. It is a terrible method.
On Feb 23, 2013 6:29 AM, "Hui Zhang" <mike.hui.zhang at hotmail.com> wrote:

> I want to implement diagonal penalty method for enforcing the Dirichlet
> boundary conditions.  That is, the diagonal entries corresponding to
> Dirichlet boundary are going to be scaled by a large number.
>
> What is the easiest way to do this?  Thanks!
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