Making Puppi optional for PATPackedCandidate producer : 80X

[Sam-Harper]

This commit makes puppi inputs optional for PATPackedCandidateProducer. If the puppi related input tags are both empty, it disables accessing puppi. If the input tags not empty, the behaviour is identical to before, thereby protecting against simple typos.

This is helpful to remake the PFPackedCandidates without running all of miniAOD. The use case which prompts this is the new HEEP V7.0 uses PFPackedCandidates for tracker isolation and therefore needs to produce these in AOD.

81X and 90X PRs following shortly.

[cmsbuild]

A new Pull Request was created by @Sam-Harper for CMSSW_8_0_X.

It involves the following packages:

PhysicsTools/PatAlgos

@cmsbuild, @cvuosalo, @slava77, @monttj, @davidlange6 can you please review it and eventually sign? Thanks.
@TaiSakuma, @gouskos, @imarches, @ahinzmann, @acaudron, @mmarionncern, @rappoccio, @jdolen, @nhanvtran, @gpetruc, @gkasieczka, @schoef, @ferencek, @mverzett, @mariadalfonso, @pvmulder, @JyothsnaKomaragiri this is something you requested to watch as well.
@slava77, @smuzaffar you are the release manager for this.

cms-bot commands are listed here #13028

[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/16632/console

[cmsbuild]

+1
Tested at: 9880d3a
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16776/16632/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16776/16632/summary.html

[cmsbuild]

Pull request #16776 was updated. @cmsbuild, @cvuosalo, @slava77, @monttj, @davidlange6 can you please check and sign again.

[cvuosalo]

@cmsbuild please test

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16776/16818/summary.html

[cmsbuild]

Pull request #16776 was updated. @cmsbuild, @cvuosalo, @slava77, @monttj, @davidlange6 can you please check and sign again.

[cvuosalo]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/16838/console Started: 2016/12/07 17:52

[cmsbuild]

+1
Tested at: 6f80377
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16776/16838/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-16776/16838/summary.html

[cvuosalo]

+1

For #16776 6f80377

Provide the option to run the PAT PackedCandidate producer without PUPPI. Default behavior does not change. There should be no change in monitored quantities.

#16777 and #16778 are the 90X and 81X versions of this PR, and the former has been approved by Reco.

The code changes are satisfactory, and Jenkins tests against baseline CMSSW_8_0_X_2016-12-07-0000 show no significant differences, as expected.

[davidlange6]

+1