[petsc-users] KSPBuildSolution

[Jed Brown]

On Wed, Feb 16, 2011 at 15:17, Juha Jäykkä <juhaj at iki.fi> wrote:

> even
> though the eventual solution returned by SNESSolve() is correct.
>

SNESSolve uses a Newton method so the linear system is being solving for a
defect. If the initial guess is zero, then it would normally pick up your
Dirichlet boundary conditions on the first iteration and all subsequent
solves would have zero in those locations.
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