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Fix for pixel FED error imbalance in DQM plots #42872
Fix for pixel FED error imbalance in DQM plots #42872
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+code-checks Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-42872/37009
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A new Pull Request was created by @ferencek (Dinko F.) for master. It involves the following packages:
@cmsbuild, @jfernan2, @mandrenguyen can you please review it and eventually sign? Thanks. cms-bot commands are listed here |
test parameters:
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@cmsbuild, please test |
@ferencek this looks desireable also for 13.2.X (data-taking release at HLT), would you mind opening a backport? |
@mmusich, ok, no problem, I will also make a backport PR. |
type bug-fix |
+1 Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-cea758/34909/summary.html Comparison SummarySummary:
GPU Comparison SummarySummary:
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+1 |
This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @antoniovilela, @rappoccio, @sextonkennedy (and backports should be raised in the release meeting by the corresponding L2) |
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PR description:
After recent bug fixes in FED error decoding in the CPU (#42010) and GPU (#42618) code, the following imbalance was still present in the
SiPixelHeterogeneous/PixelErrorCompareGPUvsCPU/FEErrorVsFEDIdUnbalance
DQM plotThis imbalance is primarily present because the GPU-based pixel unpacker is not dropping spurious errors assigned to invalid DetIds. Specifically for the timeout error (errorType=29), which consists of two error words, the GPU code was not dropping the 2nd word as is done in the CPU code. This PR therefore additionally synchronizes the FED error handling between the GPU and the legacy CPU code. The same DQM plot with this PR included becomes empty (no imbalance present)
PR validation:
The code was tested and the above DQM plots obtained by running the following workflow
runTheMatrix.py -w gpu -l 141.008583
recently introduced in #42674.
If this PR is a backport please specify the original PR and why you need to backport that PR. If this PR will be backported please specify to which release cycle the backport is meant for:
Could be backported to 13_2_X if needed.