I think you need to write your own tester, possibly by taking code from the
previous release of PETSc where we supported -snes_type test.
Barry
Note that the new code does a much more comprehensive testing of the Jacobian.
> On Jun 29, 2018, at 5:06 PM, Alexander Lindsay <[email protected]>
> wrote:
>
> Is there a way to mimic the behavior of `-snes_type test` with new PETSc?
> E.g. don't attempt to perform any solves? They're stupid but we have a bunch
> of tests in MOOSE that are set-up only to test the Jacobian, and any attempts
> to actually solve the system are disastrous. I can hack around this by doing
> things like setting the convergence reason to `SNES_CONVERGED_ITS` and
> similarly for ksp, making sure I use `-pc_type gamg` since there are missing
> Jacobian diagonal entries, etc. but this doesn't seem ideal.
>
> Alex
>
> On Mon, Jun 4, 2018 at 4:26 PM, Kong, Fande <[email protected]> wrote:
> Thanks, Hong,
>
> I see. It is better if "-snes_type test" did not exist at the first place.
>
>
> Fande,
>
> On Mon, Jun 4, 2018 at 4:01 PM, Zhang, Hong <[email protected]> wrote:
>
>
> > On Jun 4, 2018, at 4:59 PM, Zhang, Hong <[email protected]> wrote:
> >
> > -snes_type has been removed. We can just use -snes_test_jacobian instead.
> > Note that the test is done every time the Jacobian is computed.
>
> It was meant to be "-snes_type test".
>
> > Hong (Mr.)
> >
> >> On Jun 4, 2018, at 3:27 PM, Kong, Fande <[email protected]> wrote:
> >>
> >> Hi PETSc Team,
> >>
> >> I was wondering if "snes_type test" has been gone? Quite a few MOOSE users
> >> use this option to test their Jacobian matrices.
> >>
> >> If it is gone, any reason?
> >>
> >> Fande,
> >
>
>
>
