Increase threshold of max number of pixel clusters for cosmic tracking

[sroychow]

PR description:

The rate of cosmic tracks have dropped since ERA G, see latest slides. After performing several tests, Tracker DPG concluded that it was related to the cut that is imposed for number of max. pixel clusters per event in Cosmic tracking, see slides. The average number of clusters in pixel has steadily increased and reaching 300(default value till now) is roughly correlated in time with the rate drop. We are increasing the threshold to 1000 in the configs for Cosmic tracking.

If this PR is a backport please specify the original PR and why you need to backport that PR.

Not a backport. Backport will be done for 14_0_X.

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-46283/42106

[cmsbuild]

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

It involves the following packages:

• RecoTracker/SpecialSeedGenerators (reconstruction)

@cmsbuild, @jfernan2, @mandrenguyen can you please review it and eventually sign? Thanks.
@GiacomoSguazzoni, @VinInn, @VourMa, @dgulhan, @felicepantaleo, @gpetruc, @missirol, @mmusich, @mtosi, @rovere 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

[sroychow]

please test

[cmsbuild]

+1

Size: This PR adds an extra 16KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-51fde6/42013/summary.html
COMMIT: 2706393
CMSSW: CMSSW_14_2_X_2024-10-07-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/46283/42013/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 3 lines from the logs
• Reco comparison results: 28 differences found in the comparisons
• DQMHistoTests: Total files compared: 45
• DQMHistoTests: Total histograms compared: 3438002
• DQMHistoTests: Total failures: 1436
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3436546
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 44 files compared)
• Checked 197 log files, 168 edm output root files, 45 DQM output files
• TriggerResults: no differences found

[jfernan2]

+1

[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. @mandrenguyen, @antoniovilela, @rappoccio, @sextonkennedy (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1

[mmusich]

casually looking in the online DQM configuration for the strip client, I noticed:

cmssw/DQM/Integration/python/clients/sistrip_dqm_sourceclient-live_cfg.py

Lines 271 to 272 in 1e14eab

	process.simpleCosmicBONSeeds.ClusterCheckPSet.MaxNumberOfStripClusters = 450
	process.combinatorialcosmicseedfinderP5.MaxNumberOfStripClusters = 450

perhaps it should be considered in the offline reconstruction as well.