backport of LHEJetFilter

[ohindrichs]

PR description:

This is a filter acting on the LHE output. It clusters the final LHE particles using the anti-kt jet algorithm. A cut on the minimum pT > 350 GeV is selected. This filter is a loose pre-selection of the AK8-jet pT > 650 GeV filter at particle level used in the production of TT_AK8HT650* samples. The pre-filter selects at LHE level 99.8% of the events with a jet of pT > 650 GeV at particle level, while only 3% of the inclusive ttbar sample passes the filter. Therefore, the number of events that have to be showered before the filter decision is drastically reduced.

PR validation:

Tests have shown that this pre-filter reduces the run time per event from ~1.3s to ~0.2s.

Backport of #27809

[cmsbuild]

A new Pull Request was created by @ohindrichs for CMSSW_10_6_X.

It involves the following packages:

GeneratorInterface/GenFilters

@alberto-sanchez, @cmsbuild, @qliphy, @agrohsje, @efeyazgan can you please review it and eventually sign? Thanks.
@alberto-sanchez, @agrohsje, @mkirsano this is something you requested to watch as well.
@davidlange6, @slava77, @fabiocos you are the release manager for this.

cms-bot commands are listed here

• Backported from renamed TopLHEFilter -> LHEJetFilter #27809

[qliphy]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/2091/console Started: 2019/08/20 21:09

[cmsbuild]

+1
Tested at: db23136
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7e79ec/2091/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7e79ec/2091/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 2 differences found in the comparisons
• DQMHistoTests: Total files compared: 33
• DQMHistoTests: Total histograms compared: 3211049
• DQMHistoTests: Total failures: 2
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3210713
• DQMHistoTests: Total skipped: 334
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 32 files compared)
• Checked 137 log files, 14 edm output root files, 33 DQM output files

[cmsbuild]

Pull request #27812 was updated. @alberto-sanchez, @cmsbuild, @qliphy, @agrohsje, @efeyazgan can you please check and sign again.

[qliphy]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/2098/console Started: 2019/08/21 08:55

[cmsbuild]

+1
Tested at: cf2b00f
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7e79ec/2098/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-7e79ec/2098/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 33
• DQMHistoTests: Total histograms compared: 3211049
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3210714
• DQMHistoTests: Total skipped: 334
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 32 files compared)
• Checked 137 log files, 14 edm output root files, 33 DQM output files

[alberto-sanchez]

backport #27809

[alberto-sanchez]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_10_6_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_11_0_X is complete. This pull request will now be reviewed by the release team before it's merged. @davidlange6, @slava77, @smuzaffar, @fabiocos (and backports should be raised in the release meeting by the corresponding L2)

[fabiocos]

+1