[petsc-users] Test Jacobian

[Xiangdong]

I echo the error message Que reported:

[0]PETSC ERROR: --------------------- Error Message
------------------------------------
[0]PETSC ERROR: Object is in wrong state!
[0]PETSC ERROR: SNESTest aborts after Jacobian test!
 [0]PETSC ERROR:
------------------------------------------------------------------------

The snes_fd, snes_fd_color and my own Jacobian work fine separately, but
-snes_type test complains the same error message Que mentioned before.

Thanks.

Xiangdong


On Tue, Apr 15, 2014 at 12:31 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>
> On Apr 15, 2014, at 11:09 AM, Peter Brune <prbrune at gmail.com> wrote:
>
> > Perhaps there might be a clue somewhere else in the message:
> >
> > [0]PETSC ERROR: SNESTest aborts after Jacobian test!
> >
> > All SNESTest does is compute the difference between the
> finite-difference Jacobian and the user Jacobian (congratulations! yours
> isn't very different!) and then aborts with the error that you have
> experienced here.
> >
> > It may finally be time to excise SNESTest entirely as we have way better
> alternatives now.  Anyone mind if I do that?  I'll make sure to update the
> docs appropriately.
>
>    Peter,
>
>    This has not been done because there are two sets of alternatives and
> both have problems. We need to merge/fix up the other testing
> infrastructures before removing the -snes_type test
>
>    Barry
>
> >
> > - Peter
> >
> >
> > On Tue, Apr 15, 2014 at 11:01 AM, Que Cat <quecat001 at gmail.com> wrote:
> > Hello Petsc-users,
> >
> > I tested the hand-coded Jacobian, and received the follow error:
> >
> > Testing hand-coded Jacobian, if the ratio is
> > O(1.e-8), the hand-coded Jacobian is probably correct.
> > Run with -snes_test_display to show difference
> > of hand-coded and finite difference Jacobian.
> > Norm of matrix ratio 7.23832e-10 difference 1.39168e-07 (user-defined
> state)
> > Norm of matrix ratio 1.15746e-08 difference 2.2254e-06 (constant state
> -1.0)
> > Norm of matrix ratio 7.23832e-10 difference 1.39168e-07 (constant state
> 1.0)
> > [0]PETSC ERROR: --------------------- Error Message
> ------------------------------------
> > [0]PETSC ERROR: Object is in wrong state!
> > [0]PETSC ERROR: SNESTest aborts after Jacobian test!
> > [0]PETSC ERROR:
> ------------------------------------------------------------------------
> > [0]PETSC ERROR: Petsc Release Version 3.4.3, Oct, 15, 2013
> > [0]PETSC ERROR: See docs/changes/index.html for recent updates.
> > [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting.
> > [0]PETSC ERROR: See docs/index.html for manual pages.
> >
> > What does "Object is in wrong state!" mean? What are the possible
> sources of this error? Thank you for your time.
> >
> > Que
> >
>
>
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