CCM Meeting

Wednesday 5 Feb 2025, 08:00 → 09:30 US/Central

Zoom: https://cern.zoom.us/j/66569029743 (usual password)

1 News

Speakers: Alexander Tapper (Imperial College London), Pierre Lasorak (Imperial College London)

Incident at EHN1, evolving situation

Wes & Marco said that activity would maybe be able to resume mid-Feb.

2 Round table: control

Speakers: Pawel Plesniak, Pierre Lasorak (Imperial College London), Tiago Alves (Imperial College London), Wanyun Su (University of Oxford), Zbynek Kral (CTU Prague)

shifter_interface.pdf

No round table

3 Round table: config

Speakers: Alessandro Thea (STFC Rutherford Appleton Laboratory), Giovanna Lehmann (CERN), Gordon Crone (University College London), Henry Wallace (Royal Holloway, University of London), John Freeman (Fermi National Accelerator Laboratory), Marco Roda (University of Liverpool)

Marco:
 - Starting implementing the generators, as a proof of concept to see if  the system can work
 - At the moment, branch in ehn1-config containing the generators,  represented as python modules. Working on a comfortable way to call the generators from config-management. 
 - In this implementation, generators are python modules with a common "generate(path)" entrypoint. They are linked to the rest of the code via importlib. 
 - Document to be updated following the result of the R&D. The main question to be answered is related to history: can we find a way to update the operation repository to maintain the history in the branches? A normal push would cause conflicts in the same way that we found the conflicts without generator scripts. But maybe we can resolve them forcing a wipe out of the the whole branch before calling the generators. This might be complicated in case the base has files not present in the operation branch.

4 Round table: k8s etc.

Speakers: Alessandro Thea (STFC Rutherford Appleton Laboratory), Bonnie King (FNAL), Jonathan Hancock (University of Birmingham), Patrick Riehecky (Fermilab), Pierre Lasorak (Imperial College London), Tiago Alves (Imperial College London), Tiago Alves (Imperial College London)

No round table

5 Round table: monitoring

Speaker: Marco Roda (University of Liverpool)

No round table

6 Round table: others

No round table