Fix PU for 2026 wfs

[AdrianoDee]

PR description:

The 2026 wfs run with --pileup AVE_35_BX_25ns and of course this is wrong. This PR proposes a small fix to run with Run3_Flat55To75_PoissonOOTPU.

PR validation:

None.

If this PR is a backport please specify the original PR and why you need to backport that PR. If this PR will be backported please specify to which release cycle the backport is meant for:

Will be backported to 16_0_X.

[cmsbuild]

cms-bot internal usage

[AdrianoDee]

please test

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-49958/47734

• There are other open Pull requests which might conflict with changes you have proposed:
  • File Configuration/PyReleaseValidation/python/relval_steps.py modified in PR(s): Add NANO PbPb UPC relvals #49951

[AdrianoDee]

type bug-fix

[cmsbuild]

A new Pull Request was created by @AdrianoDee for master.

It involves the following packages:

• Configuration/PyReleaseValidation (pdmv)

@AdrianoDee, @DickyChant, @antoniovagnerini, @miquork can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @fabiocos, @makortel, @slomeo this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+1

Size: This PR adds an extra 68KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-325701/50955/summary.html
COMMIT: 3f5be7a
CMSSW: CMSSW_16_1_X_2026-01-27-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/49958/50955/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @makortel Add PresentThesholdAbortAllocMonitor #49950
• @mmusich Put back SiPixel Rechits GPU-vs-CPU validation in online DQM and GPU relvals #49937
• @bsunanda Phase2-hgx365J Add a testing code to study HGCalNeighbour for HGCal silicon cells #49952
• @cms-ngt-hlt [NGT] add reconstructable sim vertices validation for HLT full vertices #49900
• @jprendi adding HcalRespCorrsDepthsOverlay and HcalRespCorrsDistOverlay plots #49886

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-325701/50955/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-325701/50955/git-merge-result

Comparison Summary

Summary:

• You potentially added 9 lines to the logs
• ROOTFileChecks: Some differences in event products or their sizes found
• Reco comparison results: 3434 differences found in the comparisons
• DQMHistoTests: Total files compared: 52
• DQMHistoTests: Total histograms compared: 4025536
• DQMHistoTests: Total failures: 82412
• DQMHistoTests: Total nulls: 17
• DQMHistoTests: Total successes: 3943087
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 22135.402 KiB( 51 files compared)
• DQMHistoSizes: changed ( 18434.0,... ): 2794.853 KiB HLT/Vertexing
• DQMHistoSizes: changed ( 18434.0,... ): 0.004 KiB MessageLogger/Errors
• DQMHistoSizes: changed ( 18434.0,... ): 0.004 KiB MessageLogger/Warnings
• DQMHistoSizes: changed ( 18634.0 ): 12.305 KiB SiStrip/MechanicalView
• DQMHistoSizes: changed ( 34434.0,... ): 3306.669 KiB HLT/Vertexing
• Checked 222 log files, 193 edm output root files, 52 DQM output files
• TriggerResults: found differences in 7 / 50 workflows

Max Memory Comparisons exceeding threshold

@cms-sw/core-l2 , I found 2 workflow step(s) with memory usage exceeding the error threshold:

Expand to see workflows ...

• Error: Workflow 18634.0_TTbar_14TeV+2026PU step3 max memory diff 882.4 exceeds +/- 90.0 MiB
• Error: Workflow 18634.0_TTbar_14TeV+2026PU step2 max memory diff 575.1 exceeds +/- 90.0 MiB

[AdrianoDee]

I see the correct setup now

 cmsDriver.py step2  -s DIGI:pdigi_valid,L1,DIGI2RAW,HLT:@relval2026 --conditions auto:phase1_2026_realistic --datatier GEN-SIM-DIGI-RAW -n 10 --eventcontent FEVTDEBUGHLT --geometry DB:Extended --era Run3_2026 --pileup Run3_Flat55To75_PoissonOOTPU --pileup_input das:/RelValMinBias_14TeV/CMSSW_15_1_0_pre5-151X_mcRun3_2025_realistic_v4_STD_RegeneratedGS_2025_noPU-v1/GEN-SIM  --maxmem_profile --customise Validation/Performance/TimeMemoryJobReport.customiseWithTimeMemoryJobReport --maxmem_profile  --filein  file:step1.root  --fileout file:step2.root  --suffix "-j JobReport2.xml "  > step2_TTbar_14TeV+2026PU.log  2>&1

[AdrianoDee]

+pdmv

[cmsbuild]

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

[mandrenguyen]

+1