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

[Lisandro Dalcin]

./example.exe -snes_test_jacobian -snes_type ksponly -ksp_type preonly
-pc_type none -snes_convergence_test skip
On Sat, 30 Jun 2018 at 01:06, Alexander Lindsay
<alexlindsay239 at gmail.com> 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 <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,
>>> >
>>>
>>
>


-- 
Lisandro Dalcin
============
Research Scientist
Computer, Electrical and Mathematical Sciences & Engineering (CEMSE)
Extreme Computing Research Center (ECRC)
King Abdullah University of Science and Technology (KAUST)
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