Page Comparison

Approve 2024/1/16 minutes.

Scot Breitenfeld ​

•  post the last meeting’s minutes to the CGNS webpage.

Approved

cgns.org

Scot Breitenfeld ​

I meet with Thomas Hauser who is the holder for cgns.org on GoDaddy, he is going to add Scot Breitenfeld as an alternative owner.

high-level editing tools for the documentation page

Marc Poinot Christopher Rumsey ​

Scot Breitenfeld ​

The Doxygen branch was merged to develop.

Started to explore using Breathe and Sphinx using the develop branch.

UPDATE 4/9: Still in progress.

NVidia

Scot Breitenfeld

I’ve been meeting with NVidia about their possible use of CGNS in their Universal Scene Description (OpenUSD), https://www.nvidia.com/en-us/omniverse/usd/ , for fluid modeling. They are looking for examples of unstructured time series. Contact Scot Breitenfeld if you have simulations they can use.

Converting CGNSTalk archive to Github Discussion Posts

Scot Breitenfeld

No update.

Discussion of the need to extend the standard to include identifiers and references

Scot Breitenfeld

With more widespread sharing of CGNS data, for example, ML training, it might be helpful to standardize unique identifiers (global) for the file (maybe data, local?). Some examples:

• Online Resources: creator URL, publisher URL, contributors

• UUIDs, date convention, citations

• Descriptive keywords

• Lineage: audit trail for mods to original data

Scot Breitenfeld Submitted a DOE pre-proposal to gauge interest in funding the work.

mixed element/face zones discussion

David Garlisch

https://github.com/CGNS/CGNS/discussions/720

•  David Garlisch will post to cgnstalk files that show the issue, Gregory Sjaardema will look into it.

Unrelated, the files also cause Paraview to crash.

•  Scot Breitenfeld will follow-up with Gregory Sjaardema
•  Vicky Moschou and others will draft a document to discuss hardening the specification for faces in the case of mixed meshes.

UPDATE 4/9: No updates

Status update on Accepted CPEX #0045

No Discussion

There is currently no one actively working on this. We will keep the project on the meeting agenda, but we don’t expect any updates.

Status update on Accepted CPEX #0047 Proposed Data integration Points

Mickael PHILIT

Working on the new website before creating a new development branch to prevent duplicating efforts.

Started prototyping with Python and C and will push a branch on GitHub in the upcoming weeks. (The “C” branch is a slow work in progress)

• The first draft of the API is in the branch https://github.com/CGNS/CGNS/tree/wip_cpex-0047

  • No unit test of the API yet

  • Sample test representative of applications done and will be improved to remove the “.cgns” binary file.

  • Feedback on API is appreciated

  • Target CGNS 5.0

prioritization, review and attribution of JIRA bugs/issues

Tony Garratt David Gutzwiller ​

Next release 4.5.0, Kanban: https://github.com/orgs/CGNS/projects/5, Targeting June.

Current status for Ansys:

No urgent issues.

Update: 4/9

• Scot Breitenfeld Is completing the option of using subfiling for CGNS.

  • Targeting the 4.5.0 release, currently in the subfiling branch.

  • Needs to resolve updating the Doxygen docs into the main CGNS documentation before releasing.

​

Discuss adding a level below zones to avoid slowness issues due to creating many zones.

Stephen Guzik

Stephen Guzik will develop a CPEX for further discussion

• Might post the topic on cgnstalk to reach a wider audience.

Update 4/9: no new updates.