Set collisionId in prunedGenParticles (11_2_X)

[mandrenguyen]

PR description:

Backport of #35432

11_2_X was used for the reminiAOD of 2018 PbPb data and MC.
Some of the MC datasets will have to be reminiAOD'd with this fix.

Incidentally, I did not see an 11_2_X IB available.
Presumably there is very little development in this release, but hopefully we can build a new one at some point, although it's not very urgent.

[cmsbuild]

A new Pull Request was created by @mandrenguyen (Matthew Nguyen) for CMSSW_11_2_X.

It involves the following packages:

• PhysicsTools/HepMCCandAlgos (analysis)

@cmsbuild, @santocch can you please review it and eventually sign? Thanks.
@perrotta, @dpiparo, @qliphy you are the release manager for this.

cms-bot commands are listed here

[qliphy]

11_2_X was used for the reminiAOD of 2018 PbPb data and MC. Some of the MC datasets will have to be reminiAOD'd with this fix.

@mandrenguyen We closed 11_2_X recently as we thought this is not used anymore. @cms-sw/pdmv-l2 Can you confirm that 11_2_X is still used for productions?

[mandrenguyen]

@qliphy 11_2_X is used for heavy-ion re-miniAOD. If we were starting a new re-miniAOD campaign, it would make sense to migrate to a newer release. However, in this case, we will simply need to rerun a few MC samples.

[qliphy]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6a4dce/19455/summary.html
COMMIT: 5d52968
CMSSW: CMSSW_11_2_X_2021-10-05-1100/slc7_amd64_gcc900
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/35471/19455/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 36
• DQMHistoTests: Total histograms compared: 2537235
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2537212
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 35 files compared)
• Checked 151 log files, 37 edm output root files, 36 DQM output files
• TriggerResults: no differences found

[qliphy]

+1

[qliphy]

merge

[qliphy]

@mandrenguyen CMSSW_11_2_5_patch1which includes this PR is now available: https://hypernews.cern.ch/HyperNews/CMS/get/relAnnounce/2238.html

[santocch]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_11_2_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_12_1_X is complete. This pull request will be automatically merged.