These are libMesh options, so PETSc doesn't recognize them and reports them
as unused.
Additionally, to activate the VI solver you have to use -snes_type virs --
a PETSc option that
sets SNES to be of "reduced space" type. Otherwise the default snes type
ls ("linesearch")
is used, which doesn't use the bounds callback. You can also try -snes_type
viss ("semi-smooth"),
but I haven't tested with that, and it is generally a much more
experimental and much less tested
PETSc component (at least as of petsc-3.3).
I'll update the docs to reflect that.
Dmitry.
On Fri, Aug 10, 2012 at 12:49 AM, Subramanya Gautam Sadasiva <
[email protected]> wrote:
> I get this message..
> Option left: name:--use-petsc-dm no value
> Option left: name:-vi no value
>
> When I run my own code- the bounds object does not seem to be used at all.
>
>
> Thanks,
> Subramanya
>
>
>
> ----- Original Message -----
> From: "Dmitry Karpeev" <[email protected]>
> To: "Subramanya Gautam Sadasiva" <[email protected]>
> Cc: [email protected]
> Sent: Thursday, August 9, 2012 10:38:18 PM
> Subject: Libmesh-users] How do I get use petsc dm?
>
> petsc-3.3 should do. What are the symptoms of your problem?
> Dmitry.
>
> On Friday, August 10, 2012, Subramanya Gautam Sadasiva <
> [email protected] > wrote:
> > Hi,
> > I am trying to use the interface to the petsc snes vi solvers but I am
> unable to use the --use-petsc-dm command line option. What version of Petsc
> do I need for this? I currently have version 3.3p2
> > Thanks,
> > Subramanya
> >
> >
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