On Tue, Dec 12, 2023 at 7:13 PM Sharan Roongta <s.roongta@mpie.de> wrote:
Thanks for the clarification.
However, would it be more consistent to differentiate between 0D (vertex sets), 1D (edge sets), 2d (faces) and 3D (cell sets)? 
If I want to now apply boundary condition on a face with tag 1, it would contain the 4 edges making up that face and an additional edge with the same physical tag? 
Basically, I can’t differentiate between the two entities

When we do this in PyLith, we only tag the things we want tagged. In this mesh, absolutely everything is tagged, and with overlapping tag ranges. That seems counterproductive.

  Thanks,

     Matt
 
Thanks,
Sharan 

Group - Theory & Simulation
Department of Microstructure Physics & Alloy Design



From: Matthew Knepley <knepley@gmail.com>
To: Sharan Roongta <s.roongta@mpie.de>
Cc: "petsc-users@mcs.anl.gov" <petsc-users@mcs.anl.gov>
Sent: 13/12/2023 12:51 AM
Subject: Re: [petsc-users] difference in Face Sets in latest petsc release

On Tue, Dec 12, 2023 at 5:50 PM Sharan Roongta <s.roongta@mpie.de> wrote:
Hello,

I see discrepancy in the size/value of the 'Face Sets' printed in the current release v3.20.2 , and v3.18.6

Attached is the .msh file

-dm_view with v3.18.6
DM Object: Generated Mesh 1 MPI process
  type: plex
Generated Mesh in 3 dimensions:
  Number of 0-cells per rank: 14
  Number of 1-cells per rank: 49
  Number of 2-cells per rank: 60
  Number of 3-cells per rank: 24
Labels:
  celltype: 4 strata with value/size (0 (14), 6 (24), 3 (60), 1 (49))
  depth: 4 strata with value/size (0 (14), 1 (49), 2 (60), 3 (24))
  Cell Sets: 1 strata with value/size (1 (24))
  Face Sets: 5 strata with value/size (1 (4), 2 (4), 3 (4), 4 (4), 5 (4))


-dm_view with the current release (commit 4b9a870af96)

DM Object: Generated Mesh 1 MPI process
  type: plex
Generated Mesh in 3 dimensions:
  Number of 0-cells per rank: 14
  Number of 1-cells per rank: 49
  Number of 2-cells per rank: 60
  Number of 3-cells per rank: 24
Labels:
  celltype: 4 strata with value/size (0 (14), 6 (24), 3 (60), 1 (49))
  depth: 4 strata with value/size (0 (14), 1 (49), 2 (60), 3 (24))
  Cell Sets: 1 strata with value/size (1 (24))
  Face Sets: 12 strata with value/size (1 (5), 2 (5), 3 (5), 4 (5), 5 (5), 6 (1), 7 (1), 8 (1), 9 (1), 10 (1), 11 (1), 12 (1))

I believe the older version printed the correct thing? Has something changed in the interpretation of Face Sets?

Yes. In the older version, I was only labeling cells, faces, and vertices. There were complaints, so I put in the edge labels. If you check, all the additional labels are on edges, and checking your .msh file, those edges clearly have those labels.

  Thanks,

     Matt
 
Thanks,
Sharan

Group - Theory & Simulation
Department of Microstructure Physics & Alloy Design


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Max-Planck-Institut für Eisenforschung GmbH
Max-Planck-Straße 1
D-40237 Düsseldorf
 
Handelsregister B 2533 
Amtsgericht Düsseldorf
 
Geschäftsführung
Prof. Dr. Gerhard Dehm
Prof. Dr. Jörg Neugebauer
Prof. Dr. Dierk Raabe
Dr. Kai de Weldige
 
Ust.-Id.-Nr.: DE 11 93 58 514 
Steuernummer: 105 5891 1000


Please consider that invitations and e-mails of our institute are 
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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