[102X] Backport script for multithreaded tarball management

[fabiocos]

102X Backport of #24653: Multi thread lhe to increase GEN efficiency.
Meant to replace #24344 which appears to be an obsolete intermediate version.

[cmsbuild]

A new Pull Request was created by @fabiocos (Fabio Cossutti) for CMSSW_10_2_X.

It involves the following packages:

GeneratorInterface/LHEInterface

@alberto-sanchez, @cmsbuild, @efeyazgan, @perrozzi, @qliphy 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

[fabiocos]

code-checks

[cmsbuild]

The code-checks are being triggered in jenkins.

[fabiocos]

@efeyazgan @qliphy @alberto-sanchez @perrozzi I would imagine that this is what you would like to have now, please confirm

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-25966/8466

• This PR adds an extra 12KB to repository

[fabiocos]

please test

not really testing this PR

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/33177/console Started: 2019/02/18 18:19

[cmsbuild]

+1
Tested at: 55a9da6
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-25966/33177/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-25966/33177/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 4 differences found in the comparisons
• DQMHistoTests: Total files compared: 31
• DQMHistoTests: Total histograms compared: 3007400
• DQMHistoTests: Total failures: 3
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3007207
• DQMHistoTests: Total skipped: 190
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 30 files compared)
• Checked 129 log files, 14 edm output root files, 31 DQM output files

[qliphy]

This added file "run_generic_tarball_cvmfs_manual_multithread.sh" is fine. But after recent chat with @perrozzi and @efeyazgan , we think it alone doesn't ensure a multithread mode for gridpack running. A local test shows it just launches separate jobs one by one and the total timing is the same. In other words, we may still need additional update from e.g. madgraph side to be able to distribute jobs with different threads.

However, the file can be merged for next step's reference. We can also use this backport from #24653 to replace #24344.

[fabiocos]

@qliphy thank you for the clarification. In any case this would bring 10_2_X in sync with master in a fully backward compatible way, while #24344 does not. Up to you decide whether you want it or not. If as I believe #24344 is obsolete, please let me know whether it may just be closed

[qliphy]

@fabiocos Yes I agree #24344 can be closed.

[qliphy]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_10_2_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_10_5_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