[petsc-users] "snes_type test" is gone?

[Alexander Lindsay]

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 <fande.kong at inl.gov> 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 <hongzhang at anl.gov> wrote:
>
>>
>>
>> > On Jun 4, 2018, at 4:59 PM, Zhang, Hong <hongzhang at anl.gov> 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 <fande.kong at inl.gov> 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,
>> >
>>
>>
>
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