[petsc-users] vtkviewer with cloned dm

[Matthew Knepley]

On Thu, May 9, 2013 at 6:52 AM, Dharmendar Reddy <dharmareddy84 at gmail.com>wrote:

>
>
>
> On Thu, May 9, 2013 at 6:46 AM, Matthew Knepley <knepley at gmail.com> wrote:
>
>> On Thu, May 9, 2013 at 6:33 AM, Dharmendar Reddy <dharmareddy84 at gmail.com
>> > wrote:
>>
>>> Hello,
>>>          Looks like the call DMGetCoordinatesLocal(clonedDM,coords,ierr)
>>> is giving a null coords Vec. DMView on clonedDM is printing the expected
>>> information
>>>
>>> Mesh in 2 dimensions:
>>>   0-cells: 9
>>>   1-cells: 16
>>>   2-cells: 8
>>> Labels:
>>>   marker: 2 strata of sizes (16, 5)
>>>   depth: 3 strata of sizes (9, 16, 8)
>>>
>>> the original dm is created using DMPlexCreateBoxMesh.
>>>
>>
>> The semantics for Clone have not been nailed down. I can copy over the
>> coordinates. I am not sure it will make
>> the release, but I will put it in next.
>>
>>  That will help for now. On a related note, when the parent dm is refined
> or distributed  does cloned dm also get refined or distributed or do we
> need to call the clone after refining or distributing the parent dm ?
>

No. Here the model is clear, and I think its the right one. Distribution,
refinement, interpolation, etc. all create
a new DM, thus any clones are pointing at the old DM.

  Matt


>
>
>>    Thanks,
>>
>>      Matt
>>
>>
>>>
>>> On Wed, May 8, 2013 at 8:21 PM, Dharmendar Reddy <
>>> dharmareddy84 at gmail.com> wrote:
>>>
>>>> Hello,
>>>>          I am seeing an error when i use vtkviewer with a cloned dm. Am
>>>> i doing some thing worng  ? Please see the attached test case.
>>>>
>>>> [0]PETSC ERROR: --------------------- Error Message
>>>> ----------------------------
>>>> --------
>>>> [0]PETSC ERROR: Null argument, when expecting valid pointer!
>>>> [0]PETSC ERROR: Null Object: Parameter # 1!
>>>> [0]PETSC ERROR:
>>>> ----------------------------------------------------------------
>>>> --------
>>>> [0]PETSC ERROR: Petsc Development GIT revision:
>>>> 2ba5cda9c63f067922ac725686fc49a5
>>>> 014f5bad  GIT Date: 2013-05-05 14:03:36 -0600
>>>> [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.
>>>> [0]PETSC ERROR:
>>>> ----------------------------------------------------------------
>>>> --------
>>>> [0]PETSC ERROR: ./testDMView on a mpi_rScalar_Debug named
>>>> login3.stampede.tacc.u
>>>> texas.edu by Reddy135 Wed May  8 19:53:42 2013
>>>> [0]PETSC ERROR: Libraries linked from
>>>> /home1/00924/Reddy135/LocalApps/petsc/mpi_
>>>> rScalar_Debug/lib
>>>> [0]PETSC ERROR: Configure run at Sun May  5 23:15:58 2013
>>>> [0]PETSC ERROR: Configure options   --download-blacs=1
>>>> --download-ctetgen=1 --do
>>>> wnload-metis=1 --download-mumps=1 --download-parmetis=1
>>>> --download-scalapack=1 -
>>>> -download-superlu_dist=1 --download-triangle=1 --download-umfpack=1
>>>> --with-blas-
>>>> lapack-dir=/opt/apps/intel/13/composer_xe_2013.2.146/mkl/lib/intel64/
>>>> --with-deb
>>>> ugging=1 --with-mpi-dir=/opt/apps/intel13/mvapich2/1.9/
>>>> --with-petsc-arch=mpi_rS
>>>> calar_Debug --with-petsc-dir=/home1/00924/Reddy135/LocalApps/petsc
>>>> PETSC_ARCH=mp
>>>> i_rScalar_Debug
>>>> [0]PETSC ERROR:
>>>> ----------------------------------------------------------------
>>>> --------
>>>> [0]PETSC ERROR: VecGetArrayRead() line 1488 in
>>>> /home1/00924/Reddy135/LocalApps/p
>>>> etsc/src/vec/vec/interface/rvector.c
>>>> [0]PETSC ERROR: DMPlexVTKWriteAll_VTU() line 300 in
>>>> /home1/00924/Reddy135/LocalA
>>>> pps/petsc/src/dm/impls/plex/plexvtu.c
>>>> [0]PETSC ERROR: DMPlexVTKWriteAll() line 606 in
>>>> /home1/00924/Reddy135/LocalApps/
>>>> petsc/src/dm/impls/plex/plexvtk.c
>>>> [0]PETSC ERROR: PetscViewerFlush_VTK() line 78 in
>>>> /home1/00924/Reddy135/LocalApp
>>>> s/petsc/src/sys/classes/viewer/impls/vtk/vtkv.c
>>>> [0]PETSC ERROR: PetscViewerFlush() line 30 in
>>>> /home1/00924/Reddy135/LocalApps/pe
>>>> tsc/src/sys/classes/viewer/interface/flush.c
>>>> [0]PETSC ERROR: PetscViewerDestroy() line 100 in
>>>> /home1/00924/Reddy135/LocalApps
>>>> /petsc/src/sys/classes/viewer/interface/view.c
>>>>
>>>> --
>>>> -----------------------------------------------------
>>>> Dharmendar Reddy Palle
>>>> Graduate Student
>>>> Microelectronics Research center,
>>>> University of Texas at Austin,
>>>> 10100 Burnet Road, Bldg. 160
>>>> MER 2.608F, TX 78758-4445
>>>> e-mail: dharmareddy84 at gmail.com
>>>> Phone: +1-512-350-9082
>>>> United States of America.
>>>> Homepage: https://webspace.utexas.edu/~dpr342
>>>>
>>>
>>>
>>>
>>> --
>>> -----------------------------------------------------
>>> Dharmendar Reddy Palle
>>> Graduate Student
>>> Microelectronics Research center,
>>> University of Texas at Austin,
>>> 10100 Burnet Road, Bldg. 160
>>> MER 2.608F, TX 78758-4445
>>> e-mail: dharmareddy84 at gmail.com
>>> Phone: +1-512-350-9082
>>> United States of America.
>>> Homepage: https://webspace.utexas.edu/~dpr342
>>>
>>
>>
>>
>> --
>> 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
>>
>
>
>
> --
> -----------------------------------------------------
> Dharmendar Reddy Palle
> Graduate Student
> Microelectronics Research center,
> University of Texas at Austin,
> 10100 Burnet Road, Bldg. 160
> MER 2.608F, TX 78758-4445
> e-mail: dharmareddy84 at gmail.com
> Phone: +1-512-350-9082
> United States of America.
> Homepage: https://webspace.utexas.edu/~dpr342
>



-- 
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
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