Add MPI modules to different paths in the splitter

[Annnnya]

PR description:

This pr modifies edmMpiSplitConfig to add MPI modules to different paths depending on their group. It also copies MessageLogger into remote configuration.

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-50821/49151

[cmsbuild]

A new Pull Request was created by @Annnnya for master.

It involves the following packages:

• HeterogeneousCore/MPICore (heterogeneous)

@cmsbuild, @fwyzard, @makortel can you please review it and eventually sign? Thanks.
@makortel, @rovere this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-50821/49152

[cmsbuild]

Pull request #50821 was updated. @cmsbuild, @fwyzard, @makortel can you please check and sign again.

[fwyzard]

please test

[fwyzard]

+heterogeneous

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs after it passes the integration tests. This pull request will now be reviewed by the release team before it's merged. @sextonkennedy, @ftenchini, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[fwyzard]

The unit test failure

OSError: Input folder '/cvmfs/cms-ib.cern.ch/sw/x86_64/nweek-02939/el8_amd64_gcc13/cms/cmssw/CMSSW_17_0_X_2026-04-27-2300/external/el8_amd64_gcc13/data/DQM/Integration/data/run402360' does not exist in CMSSW_SEARCH_PATH

is pretty much unrelated to this PR.

[fwyzard]

ignore tests-rejected with external-failure

[cmsbuild]

-1

Failed Tests: UnitTests
Size: This PR adds an extra 24KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-eff780/52914/summary.html
COMMIT: f70b784
CMSSW: CMSSW_17_0_X_2026-04-27-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/50821/52914/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @KIT-CMS Bug Fix Tau Embedding HLT information #50764
• @jfernan2 [DQM] Remove TensorFlow dependency from BuildFile.xml #50793
• @gpetruc [L1T] Propagate CTL2 Electron ID discriminator output to GT object (Phase-2) #50602
• @sakura-ngt NGT DQM online client: add monitoring of trigger candidate 4-vectors  #50811
• @fwyzard Reimplement MPI event synchronisation with async barriers #50810

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-eff780/52914/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-eff780/52914/git-merge-result

Failed Unit Tests

I found 1 errors in the following unit tests:

---> test TestDQMOnlineClient-ngt_dqm_sourceclient had ERRORS

Comparison Summary

Summary:

• You potentially removed 2 lines from the logs
• Reco comparison results: 8 differences found in the comparisons
• DQMHistoTests: Total files compared: 53
• DQMHistoTests: Total histograms compared: 4186963
• DQMHistoTests: Total failures: 28
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 4186915
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 52 files compared)
• Checked 227 log files, 197 edm output root files, 53 DQM output files
• TriggerResults: no differences found

[ftenchini]

+1