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

This version introduces C++20 compatibility and removes the dependency on Boost. See https://github.com/alpaka-group/alpaka/releases/tag/2.0.0 for the release notes, and https://github.com/alpaka-group/alpaka/pulls?q=milestone%3A2.0.0 for the full list of changes in the 2.0.0 release.

cmsbuild · 2025-10-03T13:55:46Z

Pull request #10103 was updated.

fwyzard · 2025-10-03T13:57:09Z

please test with cms-sw/cmssw#49042

fwyzard · 2025-10-03T20:08:42Z

hold

The tests look good, but let's run some benchmarks before merging the changes.

cmsbuild · 2025-10-03T20:09:05Z

Pull request has been put on hold by @fwyzard
They need to issue an unhold command to remove the hold state or L1 can unhold it for all

cmsbuild · 2025-10-04T01:40:16Z

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/48444/summary.html
COMMIT: eaf0170
CMSSW: CMSSW_16_0_X_2025-10-03-1100/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/10103/48444/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-dc1302/48444/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-dc1302/48444/git-merge-result

Comparison Summary

Summary:

You potentially added 214 lines to the logs
ROOTFileChecks: Some differences in event products or their sizes found
Reco comparison results: 69279 differences found in the comparisons
DQMHistoTests: Total files compared: 51
DQMHistoTests: Total histograms compared: 3921288
DQMHistoTests: Total failures: 601506
DQMHistoTests: Total nulls: 1392
DQMHistoTests: Total successes: 3318370
DQMHistoTests: Total skipped: 20
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 20468.867 KiB( 50 files compared)
DQMHistoSizes: changed ( 29634.75,... ): 416.511 KiB HLT/JetMET
DQMHistoSizes: changed ( 10224.0,... ): 700.241 KiB JetMET/METValidation
DQMHistoSizes: changed ( 10224.0 ): 0.544 KiB SiStrip/MechanicalView
DQMHistoSizes: changed ( 13034.0 ): -0.981 KiB SiStrip/MechanicalView
DQMHistoSizes: changed ( 135.4,... ): 510.699 KiB JetMET/METValidation
DQMHistoSizes: changed ( 16834.0,... ): 425.300 KiB HLT/JetMET
DQMHistoSizes: changed ( 17034.0 ): -0.353 KiB SiStrip/MechanicalView
DQMHistoSizes: changed ( 25.0,... ): 697.903 KiB JetMET/METValidation
DQMHistoSizes: changed ( 250202.181 ): 0.127 KiB SiStrip/MechanicalView
DQMHistoSizes: changed ( 25202.0 ): -0.063 KiB SiStrip/MechanicalView
Checked 218 log files, 188 edm output root files, 51 DQM output files
TriggerResults: found differences in 14 / 49 workflows

AMD_MI300X Comparison Summary

Summary:

You potentially added 118 lines to the logs
ROOTFileChecks: Some differences in event products or their sizes found
Reco comparison results: 1021 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146252
DQMHistoTests: Total failures: 100074
DQMHistoTests: Total nulls: 45
DQMHistoTests: Total successes: 46133
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 416.511 KiB( 10 files compared)
DQMHistoSizes: changed ( 29834.751 ): 416.511 KiB HLT/JetMET
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 10 / 10 workflows

AMD_W7900 Comparison Summary

Summary:

You potentially added 118 lines to the logs
ROOTFileChecks: Some differences in event products or their sizes found
Reco comparison results: 1021 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146252
DQMHistoTests: Total failures: 100042
DQMHistoTests: Total nulls: 45
DQMHistoTests: Total successes: 46165
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 416.511 KiB( 10 files compared)
DQMHistoSizes: changed ( 29834.751 ): 416.511 KiB HLT/JetMET
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 10 / 10 workflows

NVIDIA_H100 Comparison Summary

Summary:

You potentially added 119 lines to the logs
ROOTFileChecks: Some differences in event products or their sizes found
Reco comparison results: 1021 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146252
DQMHistoTests: Total failures: 100045
DQMHistoTests: Total nulls: 45
DQMHistoTests: Total successes: 46162
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 416.511 KiB( 10 files compared)
DQMHistoSizes: changed ( 29834.751 ): 416.511 KiB HLT/JetMET
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 10 / 10 workflows

NVIDIA_L40S Comparison Summary

Summary:

You potentially added 120 lines to the logs
ROOTFileChecks: Some differences in event products or their sizes found
Reco comparison results: 1021 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146252
DQMHistoTests: Total failures: 100071
DQMHistoTests: Total nulls: 45
DQMHistoTests: Total successes: 46136
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 416.511 KiB( 10 files compared)
DQMHistoSizes: changed ( 29834.751 ): 416.511 KiB HLT/JetMET
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 10 / 10 workflows

NVIDIA_T4 Comparison Summary

Summary:

You potentially added 121 lines to the logs
ROOTFileChecks: Some differences in event products or their sizes found
Reco comparison results: 1021 differences found in the comparisons
DQMHistoTests: Total files compared: 11
DQMHistoTests: Total histograms compared: 146252
DQMHistoTests: Total failures: 100043
DQMHistoTests: Total nulls: 45
DQMHistoTests: Total successes: 46164
DQMHistoTests: Total skipped: 0
DQMHistoTests: Total Missing objects: 0
DQMHistoSizes: Histogram memory added: 416.511 KiB( 10 files compared)
DQMHistoSizes: changed ( 29834.751 ): 416.511 KiB HLT/JetMET
Checked 42 log files, 45 edm output root files, 11 DQM output files
TriggerResults: found differences in 10 / 10 workflows

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

Open

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 and removed tests-pending labels Oct 3, 2025

cmsbuild added the requires-external label Oct 3, 2025

cmsbuild added the hold label Oct 3, 2025

cmsbuild added tests-approved and removed tests-started labels Oct 4, 2025

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Update alpaka to 2.0.0 "Concepts Ahead" #10103

Update alpaka to 2.0.0 "Concepts Ahead" #10103

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 1, 2025 •

edited

Loading

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 1, 2025

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 3, 2025

Uh oh!

cmsbuild commented Oct 3, 2025

Uh oh!

fwyzard commented Oct 3, 2025

Uh oh!

fwyzard commented Oct 3, 2025

Uh oh!

cmsbuild commented Oct 3, 2025

Uh oh!

cmsbuild commented Oct 4, 2025

Uh oh!

Uh oh!

Update alpaka to 2.0.0 "Concepts Ahead" #10103

Are you sure you want to change the base?

Update alpaka to 2.0.0 "Concepts Ahead" #10103

Uh oh!

Conversation

fwyzard commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 1, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

cmsbuild commented Oct 1, 2025

Unit Tests

RelVals-NVIDIA_T4

Comparison Summary

AMD_MI300X Comparison Summary

AMD_W7900 Comparison Summary

NVIDIA_H100 Comparison Summary

NVIDIA_L40S Comparison Summary

Uh oh!

fwyzard commented Oct 1, 2025

Uh oh!

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

Uh oh!

cmsbuild commented Oct 3, 2025

Uh oh!

fwyzard commented Oct 3, 2025

Uh oh!

fwyzard commented Oct 3, 2025

Uh oh!

cmsbuild commented Oct 3, 2025

Uh oh!

cmsbuild commented Oct 4, 2025

Comparison Summary

AMD_MI300X Comparison Summary

AMD_W7900 Comparison Summary

NVIDIA_H100 Comparison Summary

NVIDIA_L40S Comparison Summary

NVIDIA_T4 Comparison Summary

Uh oh!

Uh oh!

cmsbuild commented Oct 1, 2025 •

edited

Loading