[petsc-users] Doubt about TSMonitorSolutionVTK

[Matthew Knepley]

On Tue, Jul 2, 2024 at 3:50 PM MIGUEL MOLINOS PEREZ <mmolinos at us.es> wrote:

> Dear Matthew, thank you. That makes much more sense. Is the script you
> mention available for download?
>

$PETSC_DIR/lib/petsc/bin/petsc-_gen_xdmf.py

  Thanks,

    Matt


> Thanks,
> Miguel
>
> On Jul 1, 2024, at 5:09 AM, Matthew Knepley <knepley at gmail.com> wrote:
>
> On Mon, Jul 1, 2024 at 1:43 AM MIGUEL MOLINOS PEREZ <mmolinos at us.es>
> wrote:
>
>> Dear Matthey,
>>
>> Sorry for the late response.
>>
>> Yes, I get output when I run the example mentioned by Barry.
>>
>> The output directory should not be an issue since with the exact same
>> configuration works for hdf5 but not for vtk/vts/vtu.
>>
>> I’ve been doing some tests and now I think this issue might be related to
>> the fact that the output vector was generated using a SWARM discretization.
>> Is this possible?
>>
>
> Yes, there is no VTK viewer for Swarm. We have been moving away from VTK
> format, which is bulky and not very expressive, into our own HDF5 and CGNS.
> When we use HDF5, we have a script to generate an XDMF file, telling
> Paraview how to view it. I agree that this is annoying. Currently, we are
> moving toward PyVista, which can read our HDF5 files directly (and also
> work directly with running PETSc), although this is not done yet.
>
>   Thanks,
>
>      Matt
>
>
>> Best,
>> Miguel
>>
>> On Jun 27, 2024, at 4:59 AM, Matthew Knepley <knepley at gmail.com> wrote:
>>
>> Do you get output when you run an example with that option? Is it
>> possible that your current working directory is not what you expect? Maybe
>> try putting in an absolute path.
>>
>>   Thanks,
>>
>>     Matt
>>
>> On Wed, Jun 26, 2024 at 5:30 PM MIGUEL MOLINOS PEREZ <mmolinos at us.es>
>> wrote:
>>
>>> This Message Is From an External Sender
>>> This message came from outside your organization.
>>>
>>> Sorry, I did not put in cc petsc-users at mcs.anl.gov my replay.
>>>
>>> Miguel
>>>
>>> On Jun 24, 2024, at 6:39 PM, MIGUEL MOLINOS PEREZ <mmolinos at us.es>
>>> wrote:
>>>
>>> Thank you Barry,
>>>
>>> This is exactly how I did it the first time.
>>>
>>> Miguel
>>>
>>> On Jun 24, 2024, at 6:37 PM, Barry Smith <bsmith at petsc.dev> wrote:
>>>
>>>
>>>    See, for example, the bottom of src/ts/tutorials/ex26.c  that uses
>>> -ts_monitor_*solution_vtk* 'foo-%03d.vts'
>>>
>>>
>>> On Jun 24, 2024, at 8:47 PM, MIGUEL MOLINOS PEREZ <mmolinos at us.es>
>>> wrote:
>>>
>>> This Message Is From an External Sender
>>> This message came from outside your organization.
>>> Dear all,
>>>
>>> I want to monitor the results at each iteration of TS using vtk format.
>>> To do so, I add the following lines to my Monitor function:
>>>
>>> char vts_File_Name[MAXC];
>>> PetscCall(PetscSNPrintf(vts_File_Name, sizeof(vts_File_Name),
>>> "./xi-MgHx-hcp-cube-x5-x5-x5-TS-BE-%i.vtu", step));
>>> PetscCall(TSMonitorSolutionVTK(ts, step, time, X, (void*)vts_File_Name
>>> ));
>>>
>>> My script compiles and executes without any sort of warning/error
>>> messages. However, no output files are produced at the end of the
>>> simulation. I’ve also tried the option “-ts_monitor_solution_vtk
>>> <filename-%03D.vts>”, but I got no results as well.
>>>
>>> I can’t find any similar example on the petsc website and I don’t see
>>> what I am doing wrong. Could somebody point me to the right direction?
>>>
>>> Thanks,
>>> Miguel
>>>
>>>
>>>
>>>
>>>
>>
>> --
>> What most experimenters take for granted before they begin their
>> experiments is infinitely more interesting than any results to which their
>> experiments lead.
>> -- Norbert Wiener
>>
>> https://urldefense.us/v3/__https://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!c6MlkyvZFc8zu-D_Chh2KKned2NifwM1VkXSb9uEq_whB9rDSDhCEZNpbHt3eGv_MQCI6aR4dEHgyZlOgYlv$ 
>> <https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!c6MlkyvZFc8zu-D_Chh2KKned2NifwM1VkXSb9uEq_whB9rDSDhCEZNpbHt3eGv_MQCI6aR4dEHgyS793ANl$ >
>>
>>
>>
>
> --
> What most experimenters take for granted before they begin their
> experiments is infinitely more interesting than any results to which their
> experiments lead.
> -- Norbert Wiener
>
> https://urldefense.us/v3/__https://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!c6MlkyvZFc8zu-D_Chh2KKned2NifwM1VkXSb9uEq_whB9rDSDhCEZNpbHt3eGv_MQCI6aR4dEHgyZlOgYlv$ 
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>
>
>

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://urldefense.us/v3/__https://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!c6MlkyvZFc8zu-D_Chh2KKned2NifwM1VkXSb9uEq_whB9rDSDhCEZNpbHt3eGv_MQCI6aR4dEHgyZlOgYlv$  <https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!c6MlkyvZFc8zu-D_Chh2KKned2NifwM1VkXSb9uEq_whB9rDSDhCEZNpbHt3eGv_MQCI6aR4dEHgyS793ANl$ >
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