[petsc-dev] SNES with linear operator

[Matthew Knepley]

On Sun, Sep 1, 2013 at 5:54 PM, Mark F. Adams <mfadams at lbl.gov> wrote:

> I have a SNES solver that runs with a linear operator at times.  I use
> -ksp_ksponly.  The KSPSetOperator seems to get called every solve because
> the PC setup code gets called every solve.  Should this be happening?


Is there a problem with it getting called? I think that is the right way to
do it.

Separately, I think we should have options in the manual and on the FAQ for
reducing SNES to just a linear solve with nothing else.

   Matt


>
> Mark




-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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