Make Pythia8 Photon Flux more configurable.

[hjbossi]

PR description:

Changes made to make the Pythia8 photon flux more configurable.

PR validation:

This PR is a backport of #44549 meant for the next release cycle.

[cmsbuild]

A new Pull Request was created by @hjbossi for CMSSW_13_0_HeavyIon_X.

It involves the following packages:

• Configuration/Generator (generators)
• GeneratorInterface/Pythia8Interface (generators)

@GurpreetSinghChahal, @SiewYan, @alberto-sanchez, @bbilin, @cmsbuild, @menglu21, @mkirsano can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @alberto-sanchez, @fabiocos, @missirol, @mkirsano this is something you requested to watch as well.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

• Backported from Make PYTHIA 8 photon flux more configurable. #44549

[cmsbuild]

cms-bot internal usage

[mandrenguyen]

please test workflow 180,181

[cmsbuild]

-1

Failed Tests: RelVals
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-37d719/40421/summary.html
COMMIT: 4dc5e75
CMSSW: CMSSW_13_0_HeavyIon_X_2024-07-14-0000/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/45468/40421/install.sh to create a dev area with all the needed externals and cmssw changes.

RelVals

ValueError: Undefined workflows: 180.0, 181.0

[mandrenguyen]

test parameters

[mandrenguyen]

please test
I forgot that 180,181 didn't exist yet in 13_0_X.
Let's see if the test parameters flag reset the extra workflows correctly.

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-37d719/40424/summary.html
COMMIT: 4dc5e75
CMSSW: CMSSW_13_0_HeavyIon_X_2024-07-14-0000/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/45468/40424/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 5 lines to the logs
• Reco comparison results: 22 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3283624
• DQMHistoTests: Total failures: 989
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3282613
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 48 files compared)
• Checked 213 log files, 164 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[hjbossi]

Can someone merge this backport as all tests were successful?

[mandrenguyen]

backport of #44549

[mandrenguyen]

@cms-sw/generators-l2 Please review this backport when you find a moment.

[bbilin]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_13_0_HeavyIon_X IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @antoniovilela, @rappoccio, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[rappoccio]

+1