Upgrade EvtGen to v03.00.00 by kawaho · Pull Request #10580 · cms-sw/cmsdist

kawaho · 2026-05-25T15:44:08Z

This commits upgrade EvtGen to v03.00.00, which

is now thread-safe, allowing multithreading in production
adds new final state photon radiation models in Sherpa/Photon++ and Vincia
includes new physics models and decay table implemented by Belle 2

cmsbuild · 2026-05-25T15:44:31Z

A new Pull Request was created by @kawaho for branch IB/CMSSW_17_0_X/master.

@akritkbehera, @cmsbuild, @iarspider, @raoatifshad, @smuzaffar can you please review it and eventually sign? Thanks.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.
cms-bot commands are listed here

cmsbuild · 2026-05-25T15:44:31Z

cms-bot internal usage

akritkbehera · 2026-05-25T22:01:03Z

please test with cms-sw/cmssw#51029

cmsbuild · 2026-05-25T23:31:03Z

-1

Failed Tests: UnitTests RelVals AddOn
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53469/summary.html
COMMIT: 8089a4f
CMSSW: CMSSW_17_0_X_2026-05-25-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10580/53469/install.sh to create a dev area with all the needed externals and cmssw changes.

Failed Unit Tests

I found 10 errors in the following unit tests:

---> test GeneratorInterfaceEvtGenInterfaceTest had ERRORS
---> test TestGeneratorInterfaceEvtGenInterface_bplus had ERRORS
---> test test_MC_22_crosscheck had ERRORS
and more ...

Failed RelVals

25202.0A fatal system signal has occurred: segmentation violation
25.0A fatal system signal has occurred: segmentation violation
1306.0A fatal system signal has occurred: segmentation violation

Expand to see more relval errors ...

Failed AddOn Tests

hlt_mc_Fake

A fatal system signal has occurred: segmentation violation

hlt_mc_Fake

----- Begin Fatal Exception 26-May-2026 00:52:06 CEST-----------------------
An exception of category 'FileOpenError' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing input source of type PoolSource
   [2] Calling RootInputFileSequence::initTheFile()
   Additional Info:
      [a] Attempted to open logical file file:RelVal_Raw_Fake_MC.root.
      [b] Failed to open the file with physical name file:RelVal_Raw_Fake_MC.root.
      [c] Fatal Root Error: @SUB=TStorageFactoryFile::ReadBuffer
read from Storage::xread returned 256. Asked to read n bytes: 300 from offset: 0 with file size: 256

----- End Fatal Exception -------------------------------------------------

hlt_mc_Fake

----- Begin Fatal Exception 26-May-2026 00:52:28 CEST-----------------------
An exception of category 'FileOpenError' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing input source of type PoolSource
   [2] Calling RootInputFileSequence::initTheFile()
   Additional Info:
      [a] Attempted to open logical file file:RelVal_Raw_Fake_MC.root.
      [b] Failed to open the file with physical name file:RelVal_Raw_Fake_MC.root.
      [c] Fatal Root Error: @SUB=TStorageFactoryFile::ReadBuffer
read from Storage::xread returned 256. Asked to read n bytes: 300 from offset: 0 with file size: 256

----- End Fatal Exception -------------------------------------------------

Expand to see more addon errors ...

kawaho · 2026-05-26T00:15:39Z

@akritkbehera how do I run these tests locally? They look strange because all the errors seem to be coming from GEANT4 which is not changed in this commit.

smuzaffar · 2026-05-26T07:27:52Z

please test with cms-sw/cmssw#51029 using full cmssw

lets build full cmssw

cmsbuild · 2026-05-26T11:54:10Z

-1

Failed Tests: UnitTests RelVals AddOn
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53479/summary.html
COMMIT: 8089a4f
CMSSW: CMSSW_17_0_X_2026-05-25-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10580/53479/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:

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53479/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53479/git-merge-result

Failed Unit Tests

I found 10 errors in the following unit tests:

---> test test_MC_22_crosscheck had ERRORS
---> test test_MC_23_crosscheck had ERRORS
---> test GeneratorInterfaceEvtGenInterfaceTest had ERRORS
and more ...

Failed RelVals

25202.0A fatal system signal has occurred: segmentation violation
25.0A fatal system signal has occurred: segmentation violation
1306.0A fatal system signal has occurred: segmentation violation

Expand to see more relval errors ...

Failed AddOn Tests

hlt_mc_Fake

A fatal system signal has occurred: segmentation violation

hlt_mc_Fake

----- Begin Fatal Exception 26-May-2026 13:12:11 CEST-----------------------
An exception of category 'FileOpenError' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing input source of type PoolSource
   [2] Calling RootInputFileSequence::initTheFile()
   Additional Info:
      [a] Attempted to open logical file file:RelVal_Raw_Fake_MC.root.
      [b] Failed to open the file with physical name file:RelVal_Raw_Fake_MC.root.
      [c] Fatal Root Error: @SUB=TStorageFactoryFile::ReadBuffer
read from Storage::xread returned 256. Asked to read n bytes: 300 from offset: 0 with file size: 256

----- End Fatal Exception -------------------------------------------------

hlt_mc_Fake

----- Begin Fatal Exception 26-May-2026 13:12:33 CEST-----------------------
An exception of category 'FileOpenError' occurred while
   [0] Constructing the EventProcessor
   [1] Constructing input source of type PoolSource
   [2] Calling RootInputFileSequence::initTheFile()
   Additional Info:
      [a] Attempted to open logical file file:RelVal_Raw_Fake_MC.root.
      [b] Failed to open the file with physical name file:RelVal_Raw_Fake_MC.root.
      [c] Fatal Root Error: @SUB=TStorageFactoryFile::ReadBuffer
read from Storage::xread returned 256. Asked to read n bytes: 300 from offset: 0 with file size: 256

----- End Fatal Exception -------------------------------------------------

Expand to see more addon errors ...

kawaho · 2026-05-27T16:17:30Z

The GEANT4 crush is most likely due to the dependence on SimG4Core I introduced in GeneratorInterface/ExternalDecays. This should be resolved by #51041. Let's wait for it to be merged so I can modify my commit according to the new build

kawaho · 2026-05-28T17:01:18Z

@smuzaffar

Ready to test. ThreadHandoff is moved now in the new commit.

smuzaffar · 2026-05-28T18:45:09Z

please test with cms-sw/cmssw#51029 using full cmssw

cmsbuild · 2026-06-09T17:37:05Z

Pull request #10580 was updated.

cmsbuild · 2026-06-09T19:08:04Z

Pull request #10580 was updated.

smuzaffar · 2026-06-10T08:12:15Z

please test with cms-sw/cmssw#51029

cmsbuild · 2026-06-10T08:25:45Z

-1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53816/summary.html
COMMIT: b341739
CMSSW: CMSSW_17_0_X_2026-06-09-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10580/53816/install.sh to create a dev area with all the needed externals and cmssw changes.

Failed External Build

I found compilation error when building:

|+++ a/R03-00-00/EvtGenExternal/EvtSherpaPhotons.hh.orig	2026-05-22 11:42:50.932434652 -0500 
|+++ b/R03-00-00/EvtGenExternal/EvtSherpaPhotons.hh	2026-05-22 11:42:23.583029106 -0500
--------------------------
No file to patch.  Skipping patch.
1 out of 1 hunk ignored
error: Bad exit status from /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/tmp/rpm-tmp.eXjGjf (%prep)

RPM build errors:
Bad exit status from /data/cmsbld/jenkins/workspace/ib-run-pr-tests/testBuildDir/tmp/rpm-tmp.eXjGjf (%prep)

check-external+hls4mlEmulatorExtras+1.1.4-66f94ba9a1f0ab77dcb08388a4fb59d4 done

smuzaffar · 2026-06-10T08:28:15Z

please test with cms-sw/cmssw#51029

cmsbuild · 2026-06-10T08:28:24Z

Pull request #10580 was updated.

cmsbuild · 2026-06-10T11:07:38Z

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53817/summary.html
COMMIT: 81cf1d3
CMSSW: CMSSW_17_0_X_2026-06-09-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10580/53817/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

You potentially added 18 lines to the logs
Reco comparison results: 4 differences found in the comparisons
DQMHistoTests: Total files compared: 54
DQMHistoTests: Total histograms compared: 4316359
DQMHistoTests: Total failures: 58
DQMHistoTests: Total nulls: 0
DQMHistoTests: Total successes: 4316281
DQMHistoTests: Total skipped: 20
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 53 files compared)
Checked 232 log files, 203 edm output root files, 54 DQM output files
TriggerResults: no differences found

smuzaffar · 2026-06-15T11:08:30Z

please test with cms-sw/cmssw#51029

cmsbuild · 2026-06-15T14:05:48Z

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/53947/summary.html
COMMIT: 81cf1d3
CMSSW: CMSSW_17_0_X_2026-06-15-1100/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/10580/53947/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

You potentially added 21 lines to the logs
Reco comparison results: 2 differences found in the comparisons
DQMHistoTests: Total files compared: 54
DQMHistoTests: Total histograms compared: 4337615
DQMHistoTests: Total failures: 3
DQMHistoTests: Total nulls: 0
DQMHistoTests: Total successes: 4337592
DQMHistoTests: Total skipped: 20
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 53 files compared)
Checked 232 log files, 203 edm output root files, 54 DQM output files
TriggerResults: no differences found

smuzaffar · 2026-07-01T13:33:51Z

please build with cms-sw/cmssw#51029

cmsbuild · 2026-07-01T14:03:41Z

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/54448/summary.html
COMMIT: 81cf1d3
CMSSW: CMSSW_17_0_X_2026-07-01-1100/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/10580/54448/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:

@cms-sw [17.0]Update tag for L1Trigger-L1TMuon to V01-13-00 #10694

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/54448/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-a29dd1/54448/git-merge-result

Ka Wa Ho added 4 commits May 18, 2026 13:56

update spec file for EvtGen v3

fe13f1d

patch for pythia8 with the EvtGenv3

ae4090f

bump evtgen to 3.0.0; disable sherpa mpi

d845961

add back mpi to sherpa

8089a4f

cmsbuild added tests-pending externals-pending pending-signatures orp-pending labels May 25, 2026

kawaho mentioned this pull request May 25, 2026

upgrade EvtGen interface for v03.00.00 cms-sw/cmssw#51029

Open

cmsbuild added tests-started requires-external and removed tests-pending labels May 25, 2026

cmsbuild added tests-rejected and removed tests-started labels May 25, 2026

cmsbuild added tests-started and removed tests-rejected labels May 26, 2026

cmsbuild added tests-rejected and removed tests-started labels May 26, 2026

cmsbuild added tests-started and removed tests-rejected labels May 28, 2026

cmsbuild added the tests-pending label Jun 9, 2026

move to git

b341739

cmsbuild added tests-started requires-external and removed tests-pending labels Jun 10, 2026

cmsbuild added tests-rejected and removed tests-started labels Jun 10, 2026

Change patch level from p1 to p2 in evtgen.spec

81cf1d3

cmsbuild added tests-started and removed tests-rejected labels Jun 10, 2026

cmsbuild added tests-approved and removed tests-started labels Jun 10, 2026

cmsbuild added tests-started and removed tests-approved labels Jun 15, 2026

cmsbuild added tests-approved and removed tests-started labels Jun 15, 2026

smuzaffar mentioned this pull request Jun 16, 2026

Belle2 decay table for EvtGen v3 cms-data/GeneratorInterface-EvtGenInterface#29

Open

cmsbuild added requires-external and removed requires-external labels Jul 1, 2026

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