Puppi tuning for80x

[hsatoshi]

Puppi is tuned for 80x release with new samples.
A work with @nhanvtran and @violatingcp.

[cmsbuild]

A new Pull Request was created by @hsatoshi for CMSSW_8_0_X.

It involves the following packages:

CommonTools/PileupAlgos

@cvuosalo, @monttj, @cmsbuild, @slava77, @vadler, @davidlange6 can you please review it and eventually sign? Thanks.
@ahinzmann, @jdolen, @rappoccio this is something you requested to watch as well.
@slava77, @Degano, @smuzaffar you are the release manager for this.

cms-bot commands are list here #13028

[slava77]

@hsatoshi please provide some details on changes in physics performance
(puppijets, isolation etc).
I suppose, this work was presented in a JME meeting.
If so, please add a link in the PR description block (edit your original "Puppi is tuned for 80x ...")

Thank you.

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/10862/console

[cmsbuild]

-1
Tested at: c680e86
When I ran the RelVals I found an error in the following worklfows:
8.0 step1

runTheMatrix-results/8.0_BeamHalo+BeamHalo+DIGICOS+RECOCOS+ALCABH+HARVESTCOS/step1_BeamHalo+BeamHalo+DIGICOS+RECOCOS+ALCABH+HARVESTCOS.log

you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-13136/10862/summary.html

[slava77]

@cmsbuild please test
(the errors seemed unrelated)

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/10866/console

[cmsbuild]

+1
Tested at: c680e86
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-13136/10866/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-13136/10866/summary.html

[hsatoshi]

(for the record ; I sent an email to Jim and Andreas for a brief explanation of the update)

[slava77]

@jdolen @ahinzmann
based on the email exchanges with plots, please clarify if the updates look good to you from the point of view of physics performance.
We can probably wait until Feb 3 meeting to get feedback before integrating this PR, but it will be pushing it against the deadline.

[ahinzmann]

@slava77 the updates look good. please go ahead with the integration!

[slava77]

+1

for #13136 c680e86

• changes in the configuration reduce thresholds on neutrals in the forward region and slightly increase it in the eta<2.5 region. The reduced thresholds in the forward reflects improved performance of the HF in 76X/80X. More details will be presented in JME working meeting on Feb 3 ( @hsatoshi please add a link to the slides in this PR after the meeting happens)
• jenkins tests pass and comparisons with baseline show differences only in puppi-related objects (jets and MET)
  • there is a clear increase in HF contribution (all plots are from SinglePh 2015D workflow 134.911)
    
    
    
    
• local test on 70 ttbar events from 25202 running PAT step only shows no significant change in CPU and event size comparison shows rather small changes in puppi-related objects

   or, B         new, B      delta, B   delta, %   deltaJ, %    branch 
-----------------------------------------------------------------
   2529.5 ->      2543.3         14      0.5   0.02     patJets_slimmedJetsPuppi__DQM.
    895.9 ->       897.6          2      0.2   0.00     patMETs_slimmedMETsPuppi__DQM.
  19207.0 ->     19240.7         34      0.2   0.05     patPackedCandidates_packedPFCandidates__DQM.
-------------------------------------------------------------
    74520 ->       74569         49             0.1     ALL BRANCHES