[petsc-users] Recomputing ksp
mrosso at uci.edu
Thu Jul 9 14:45:50 CDT 2015
On Thu, 2015-07-09 at 11:58 -0600, Jed Brown wrote:
> Michele Rosso <mrosso at uci.edu> writes:
> > Hi,
> > I need to recompute the preconditioner every once in a while.
> KSPSetOperators will update the preconditioner unless KSPSetReusePreconditioner has been set.
> > So far I do this "manually", i.e. I destroy ksp and re-create and
> > reset it whenever needed. I am wondering if there is a cleaner way of
> > doing this via a PETSc function. I found KSPreset but there are no
> > examples about it so I am not sure it is what I am looking for. Could
> > you help please?
> > Thanks,
> > Michele
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