Define TBB_PREVIEW_TASK_GROUP_EXTENSIONS

[makortel]

In order to use tbb::task_group::defer and tbb::task_handle.

Following #7674 (comment).

[cmsbuild]

A new Pull Request was created by @makortel (Matti Kortelainen) for branch IB/CMSSW_12_5_X/master.

@cmsbuild, @smuzaffar, @aandvalenzuela, @iarspider can you please review it and eventually sign? Thanks.
@perrotta, @dpiparo, @qliphy you are the release manager for this.
cms-bot commands are listed here

[makortel]

@smuzaffar I just took a blind try based on your comment in #7674 (comment). Is this the right way to define that macro?

@Dr15Jones FYI

[Dr15Jones]

This
https://oneapi-src.github.io/oneTBB/main/reference/task_group_extensions.html

says we should set that macro to 1.

[smuzaffar]

thanks @makortel , yes this is right place to set the flag. as @Dr15Jones suggested, please set it to 1 ( just add =1)

[cmsbuild]

Pull request #7871 was updated.

[makortel]

Thanks, done.

[makortel]

@cmsbuild, please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-940f4a/24743/summary.html
COMMIT: 7c3acb3
CMSSW: CMSSW_12_5_X_2022-05-16-1100/slc7_amd64_gcc10
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/7871/24743/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

@slava77 comparisons for the following workflows were not done due to missing matrix map:

• /data/cmsbld/jenkins/workspace/compare-root-files-short-matrix/data/PR-940f4a/11634.301_TTbar_14TeV+2021_Run3FS+TTbar_14TeV_TuneCP5_GenSim+HARVESTNano

Summary:

• No significant changes to the logs found
• Reco comparison results: 6 differences found in the comparisons
• DQMHistoTests: Total files compared: 50
• DQMHistoTests: Total histograms compared: 3741432
• DQMHistoTests: Total failures: 14
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3741396
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 49 files compared)
• Checked 208 log files, 45 edm output root files, 50 DQM output files
• TriggerResults: no differences found

[smuzaffar]

+externals

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_12_5_X/master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)