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This is puzzling since I think the usage in your code is pretty much the same as the usage in ex1f. F90. Are you sure you are compiling and linking your code against your latest PETSc build in this branch? In particular, remove any generated
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<meta charset="utf-8"></head><body><pre style="font-family: sans-serif; font-size: 100%; white-space: pre-wrap; word-wrap: break-word">
This is puzzling since I think the usage in your code is pretty much the same as the usage in ex1f.F90. Are you sure you are compiling and linking your code against your latest PETSc build in this branch? In particular, remove any generated module files, .o files, and your executable before building your application, and double-check PETSC_DIR and PETSC_ARCH.
If there is still a problem then there is some subtle difference in the two codes that we don't see. You can try replacing SNESSetJacobian() in your code with SNESSetJacobianNoInterface() and see what happens.
Barry
> On Jun 21, 2024, at 12:56 AM, Adrian Croucher <a.croucher@auckland.ac.nz> wrote:
>
> hi Barry,
>
> On 21/06/24 10:54 am, Barry Smith wrote:
>>
>> Can you get (again) the latest of the branch and try src/snes/tests/ex1f.F90 with the option -snes_fd_coloring and see if it works?
>>
>> Its funny my change broke your code since ex1f.F90 works for me.
>
> OK, I deleted the branch again, checked it out, did make clean, make allfortranstubs, make all. Then tried building src/snes/tests/ex1f, which failed with an error about "ex1f.F90:431: undefined reference to `petsclogflops_'".
>
> I wondered if something had got messed up somewhere and not cleaned up by make clean etc, so I tried building your whole branch again from scratch in a new build dir. Then I could build and run snes/tests/ex1f and run it with -snes_fd_coloring ok.
>
> However when I rebuilt my code in a new build dir against your PETSc branch, it built ok but I still got the runtime error "Wrong type of object: Parameter # 5" in SNESComputeJacobianDefaultColor().
>
> - Adrian
>
> --
> Dr Adrian Croucher
> Senior Research Fellow
> Department of Engineering Science
> Waipapa Taumata Rau / University of Auckland, New Zealand
> email: a.croucher@auckland.ac.nz
> tel: +64 (0)9 923 4611
>
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