Update alpaka to 2.0.0 "Concepts Ahead" #10103

fwyzard · 2025-10-01T15:35:11Z

This version introduces C++20 compatibility and removes the dependency on Boost.

See here for the release notes, and here for the full list of changes in the 2.0.0 release.

cmsbuild · 2025-10-01T15:35:37Z

A new Pull Request was created by @fwyzard for branch IB/CMSSW_16_0_X/master.

@akritkbehera, @cmsbuild, @iarspider, @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 · 2025-10-01T15:35:37Z

cms-bot internal usage

fwyzard · 2025-10-01T15:36:58Z

enable gpu

fwyzard · 2025-10-01T15:37:11Z

please test with cms-sw/cmssw#49042

cmsbuild · 2025-10-01T21:09:28Z

-1

Failed Tests: UnitTests RelVals-NVIDIA_T4 nvidia_t4UnitTests
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/48406/summary.html
COMMIT: 17b606b
CMSSW: CMSSW_16_0_X_2025-10-01-1100/el8_amd64_gcc13
Additional Tests: GPU,AMD_MI300X,AMD_W7900,NVIDIA_H100,NVIDIA_L40S,NVIDIA_T4
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10103/48406/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:

@leobeltra Updated SoA View accessors from raw pointers to span cmssw#48377

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/48406/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/48406/git-merge-result

Unit Tests

I found 2 errors in the following unit tests:

---> test alpakaTestOneHistoContainerSerialSync had ERRORS
---> test alpakaTestPrefixScanSerialSync had ERRORS

RelVals-NVIDIA_T4

17034.40217034.402_TTbar_14TeV+2025PU_Patatrack_PixelOnlyAlpaka/step2_TTbar_14TeV+2025PU_Patatrack_PixelOnlyAlpaka.log
17034.40317034.403_TTbar_14TeV+2025PU_Patatrack_PixelOnlyAlpaka_Validation/step2_TTbar_14TeV+2025PU_Patatrack_PixelOnlyAlpaka_Validation.log
17034.41217034.412_TTbar_14TeV+2025PU_Patatrack_ECALOnlyAlpaka/step2_TTbar_14TeV+2025PU_Patatrack_ECALOnlyAlpaka.log

Expand to see more relval errors ...

Comparison Summary

Summary:

You potentially added 12 lines to the logs
Reco comparison results: 6 differences found in the comparisons
DQMHistoTests: Total files compared: 51
DQMHistoTests: Total histograms compared: 3923676
DQMHistoTests: Total failures: 29
DQMHistoTests: Total nulls: 0
DQMHistoTests: Total successes: 3923627
DQMHistoTests: Total skipped: 20
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 50 files compared)
Checked 218 log files, 188 edm output root files, 51 DQM output files
TriggerResults: no differences found

AMD_MI300X Comparison Summary

Summary:

No significant changes to the logs found
Reco comparison results: 242 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 27588
DQMHistoTests: Total nulls: 6
DQMHistoTests: Total successes: 118690
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

AMD_W7900 Comparison Summary

Summary:

You potentially removed 1 lines from the logs
Reco comparison results: 243 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 26347
DQMHistoTests: Total nulls: 3
DQMHistoTests: Total successes: 119934
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

NVIDIA_H100 Comparison Summary

Summary:

No significant changes to the logs found
Reco comparison results: 228 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 24688
DQMHistoTests: Total nulls: 5
DQMHistoTests: Total successes: 121591
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

NVIDIA_L40S Comparison Summary

Summary:

You potentially removed 1 lines from the logs
Reco comparison results: 232 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 24690
DQMHistoTests: Total nulls: 4
DQMHistoTests: Total successes: 121590
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

fwyzard · 2025-10-01T23:04:58Z

please test with cms-sw/cmssw#49042

cmsbuild · 2025-10-03T04:25:53Z

-1

Failed Tests: UnitTests
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/48417/summary.html
COMMIT: 17b606b
CMSSW: CMSSW_16_0_X_2025-10-01-2300/el8_amd64_gcc13
Additional Tests: GPU,AMD_MI300X,AMD_W7900,NVIDIA_H100,NVIDIA_L40S,NVIDIA_T4
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10103/48417/install.sh to create a dev area with all the needed externals and cmssw changes.

Unit Tests

I found 2 errors in the following unit tests:

---> test alpakaTestOneHistoContainerSerialSync had ERRORS
---> test alpakaTestPrefixScanSerialSync had ERRORS

Comparison Summary

Summary:

You potentially added 16 lines to the logs
Reco comparison results: 0 differences found in the comparisons
DQMHistoTests: Total files compared: 51
DQMHistoTests: Total histograms compared: 3923676
DQMHistoTests: Total failures: 30
DQMHistoTests: Total nulls: 0
DQMHistoTests: Total successes: 3923626
DQMHistoTests: Total skipped: 20
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 50 files compared)
Checked 218 log files, 188 edm output root files, 51 DQM output files
TriggerResults: no differences found

AMD_MI300X Comparison Summary

Summary:

You potentially removed 1 lines from the logs
Reco comparison results: 215 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 35431
DQMHistoTests: Total nulls: 7
DQMHistoTests: Total successes: 110846
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

AMD_W7900 Comparison Summary

Summary:

You potentially removed 4 lines from the logs
Reco comparison results: 238 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 27172
DQMHistoTests: Total nulls: 6
DQMHistoTests: Total successes: 119106
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

NVIDIA_H100 Comparison Summary

Summary:

No significant changes to the logs found
Reco comparison results: 226 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 24985
DQMHistoTests: Total nulls: 4
DQMHistoTests: Total successes: 121295
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

NVIDIA_L40S Comparison Summary

Summary:

You potentially removed 2 lines from the logs
Reco comparison results: 244 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 24527
DQMHistoTests: Total nulls: 4
DQMHistoTests: Total successes: 121753
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

NVIDIA_T4 Comparison Summary

Summary:

You potentially added 4 lines to the logs
Reco comparison results: 222 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146284
DQMHistoTests: Total failures: 24855
DQMHistoTests: Total nulls: 7
DQMHistoTests: Total successes: 121422
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: no differences found

cmsbuild · 2025-10-03T13:55:46Z

Pull request #10103 was updated.

fwyzard · 2025-10-03T13:57:09Z

please test with cms-sw/cmssw#49042

smuzaffar · 2025-10-30T12:58:54Z

please test

smuzaffar · 2025-10-30T13:01:47Z

please test for el8_aarch64_gcc13

cmsbuild · 2025-10-30T17:57:07Z

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/49102/summary.html
COMMIT: 69d6a42
CMSSW: CMSSW_16_0_X_2025-10-29-2300/el8_aarch64_gcc13
Additional Tests: GPU,AMD_MI300X,AMD_W7900,NVIDIA_H100,NVIDIA_L40S,NVIDIA_T4
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10103/49102/install.sh to create a dev area with all the needed externals and cmssw changes.

cmsbuild · 2025-10-30T22:22:22Z

-1

Failed Tests: RelVals-NVIDIA_T4
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/49101/summary.html
COMMIT: 69d6a42
CMSSW: CMSSW_16_0_X_2025-10-30-1100/el8_amd64_gcc13
Additional Tests: GPU,AMD_MI300X,AMD_W7900,NVIDIA_H100,NVIDIA_L40S,NVIDIA_T4
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/10103/49101/install.sh to create a dev area with all the needed externals and cmssw changes.

RelVals-NVIDIA_T4

29834.70429834.704_TTbar_14TeV+Run4D110PU_lstOnGPUIters01TrackingOnly/step2_TTbar_14TeV+Run4D110PU_lstOnGPUIters01TrackingOnly.log

Comparison Summary

Summary:

You potentially added 16 lines to the logs
Reco comparison results: 4 differences found in the comparisons
DQMHistoTests: Total files compared: 51
DQMHistoTests: Total histograms compared: 3939953
DQMHistoTests: Total failures: 48
DQMHistoTests: Total nulls: 0
DQMHistoTests: Total successes: 3939885
DQMHistoTests: Total skipped: 20
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 50 files compared)
Checked 218 log files, 188 edm output root files, 51 DQM output files
TriggerResults: no differences found

AMD_MI300X Comparison Summary

Summary:

You potentially added 16 lines to the logs
Reco comparison results: 213 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 147869
DQMHistoTests: Total failures: 30913
DQMHistoTests: Total nulls: 13
DQMHistoTests: Total successes: 116943
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 2 / 10 workflows

AMD_W7900 Comparison Summary

Summary:

No significant changes to the logs found
Reco comparison results: 246 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 147869
DQMHistoTests: Total failures: 27724
DQMHistoTests: Total nulls: 11
DQMHistoTests: Total successes: 120134
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 1 / 10 workflows

NVIDIA_H100 Comparison Summary

Summary:

You potentially removed 8 lines from the logs
Reco comparison results: 235 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 147869
DQMHistoTests: Total failures: 25574
DQMHistoTests: Total nulls: 13
DQMHistoTests: Total successes: 122282
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 1 / 10 workflows

NVIDIA_L40S Comparison Summary

Summary:

You potentially removed 13 lines from the logs
Reco comparison results: 228 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 147869
DQMHistoTests: Total failures: 32780
DQMHistoTests: Total nulls: 11
DQMHistoTests: Total successes: 115078
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 0.0 KiB( 10 files compared)
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 1 / 10 workflows

fwyzard · 2025-10-31T07:09:18Z

The test is already failing without changes on top of the IB, see for example https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-61b8db/49103/summary.html

fwyzard · 2025-10-31T07:10:39Z

ignore tests-rejected with ib-failure

fwyzard · 2025-10-31T07:11:53Z

@mandrenguyen @smuzaffar can we merge this from 16.0.0-pre2 ?

mandrenguyen · 2025-10-31T08:31:08Z

@fwyzard If @cms-sw/externals-l2 signs then I'll merge.

iarspider · 2025-10-31T08:32:37Z

+externals

cmsbuild · 2025-10-31T08:33:03Z

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_16_0_X/master IBs (test failures were overridden). This pull request will now be reviewed by the release team before it's merged. @ftenchini, @mandrenguyen, @sextonkennedy (and backports should be raised in the release meeting by the corresponding L2)
Notice This PR was tested with additional Pull Request(s), please also merge them if necessary: cms-sw/cmssw#49042

mandrenguyen · 2025-10-31T08:49:34Z

+1

fwyzard · 2025-10-31T08:50:37Z

Thanks !

cmsbuild added tests-pending externals-pending pending-signatures orp-pending labels Oct 1, 2025

fwyzard mentioned this pull request Oct 1, 2025

Update HeterogeneousCore/AlpakaInterface for alpaka 2.0 cms-sw/cmssw#49042

Merged

cmsbuild added tests-started requires-external and removed tests-pending labels Oct 1, 2025

cmsbuild added tests-rejected and removed tests-started labels Oct 1, 2025

cmsbuild added tests-started and removed tests-rejected labels Oct 1, 2025

cmsbuild added tests-rejected and removed tests-started labels Oct 3, 2025

fwyzard force-pushed the IB/CMSSW_16_0_X/master_alpaka_2.0 branch from 17b606b to eaf0170 Compare October 3, 2025 13:55

cmsbuild added tests-pending and removed tests-rejected requires-external labels Oct 3, 2025

cmsbuild added tests-started requires-external and removed tests-pending labels Oct 3, 2025

cmsbuild added the requires-external label Oct 30, 2025

cmsbuild added tests-rejected and removed tests-started labels Oct 30, 2025

cmsbuild added tests-approved tests-ib-failure and removed tests-rejected labels Oct 31, 2025

cmsbuild added externals-approved fully-signed and removed externals-pending pending-signatures labels Oct 31, 2025

cmsbuild added orp-approved and removed orp-pending labels Oct 31, 2025

cmsbuild merged commit 0e4887c into cms-sw:IB/CMSSW_16_0_X/master Oct 31, 2025
29 of 30 checks passed

fwyzard deleted the IB/CMSSW_16_0_X/master_alpaka_2.0 branch October 31, 2025 08:50

This was referenced Oct 31, 2025

Include cmake files in HepMC3 installation #10157

Merged

Update oneTBB to v2022.3.0 #10158

Merged

Update AdePT to v0.1.8 #10160

Merged

[Geant4] Updated to version 11.3.ref10 along with few G4 datasets #10163

Merged

Update alpaka to 2.0.0 "Concepts Ahead" #10103

Update alpaka to 2.0.0 "Concepts Ahead" #10103

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Unit Tests

RelVals-NVIDIA_T4

Comparison Summary

AMD_MI300X Comparison Summary

AMD_W7900 Comparison Summary

NVIDIA_H100 Comparison Summary

NVIDIA_L40S Comparison Summary

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cmsbuild commented Oct 3, 2025

Unit Tests

Comparison Summary

AMD_MI300X Comparison Summary

AMD_W7900 Comparison Summary

NVIDIA_H100 Comparison Summary

NVIDIA_L40S Comparison Summary

NVIDIA_T4 Comparison Summary

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cmsbuild commented Oct 30, 2025

RelVals-NVIDIA_T4

Comparison Summary

AMD_MI300X Comparison Summary

AMD_W7900 Comparison Summary

NVIDIA_H100 Comparison Summary

NVIDIA_L40S Comparison Summary

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fwyzard commented Oct 1, 2025 •

edited by smuzaffar

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