cms-sw
Warnings about `UnusedProductsForCanDeleteEarly` in the phase-2 HLT menu
Many phase-2 workflow execute some variant of the phase-2 HLT menu and invariably there are warnings of the type:
%MSG-w UnusedProductsForCanDeleteEarly: AfterModDestruction 11-Jun-2025 03:51:06 CEST pre-events
The following products in the 'canDeleteEarly' list are not used in this job and will be ignored.
If possible, remove the producer from the job.
IntermediateHitDoublets_hltElePixelHitDoubletsL1Seeded__HLT
IntermediateHitDoublets_hltElePixelHitDoubletsUnseeded__HLT
RegionsSeedingHitSets_hltElePixelHitDoubletsForTripletsL1Seeded__HLT
RegionsSeedingHitSets_hltElePixelHitDoubletsForTripletsUnseeded__HLT
%MSG
found in them. See e.g: here.
These seem arise from
https://github.com/cms-sw/cmssw/blob/0455dbf9d25a0d3b2acdfb4c7a085db1f41e46a9/RecoTracker/Configuration/python/customiseEarlyDeleteForSeeding.py#L12-L18
On the other hand it's not clear what's the action item, as just removing the producers will not work as the products are actually consumed, e.g.:
https://github.com/cms-sw/cmssw/blob/0455dbf9d25a0d3b2acdfb4c7a085db1f41e46a9/HLTrigger/Configuration/python/HLT_75e33/modules/hltElePixelSeedsDoubletsL1Seeded_cfi.py#L14
https://github.com/cms-sw/cmssw/blob/0455dbf9d25a0d3b2acdfb4c7a085db1f41e46a9/HLTrigger/Configuration/python/HLT_75e33/modules/hltElePixelSeedsDoubletsUnseeded_cfi.py#L14
https://github.com/cms-sw/cmssw/blob/0455dbf9d25a0d3b2acdfb4c7a085db1f41e46a9/HLTrigger/Configuration/python/HLT_75e33/modules/hltElePixelHitTripletsL1Seeded_cfi.py#L10
https://github.com/cms-sw/cmssw/blob/0455dbf9d25a0d3b2acdfb4c7a085db1f41e46a9/HLTrigger/Configuration/python/HLT_75e33/modules/hltElePixelHitTripletsUnseeded_cfi.py#L10
A new Issue was created by @mmusich.
@Dr15Jones, @antoniovilela, @makortel, @mandrenguyen, @rappoccio, @sextonkennedy, @smuzaffar can you please review it and eventually sign/assign? Thanks.
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I am not sure to whom does this issue needs to be assigned. Can someone of the managers please follow-up?
AFAICT hltElePixelHitDoubletsL1Seeded is defined in
https://github.com/cms-sw/cmssw/blob/515dff431bdfe4efa6bb6c9b46bb27041e5ab84f/HLTrigger/Configuration/python/HLT_75e33/modules/hltElePixelHitDoubletsL1Seeded_cfi.py#L3-L12
Both produceIntermediateHitDoublets and produceSeedingHitSets are set to True.
On the consumer side
https://github.com/cms-sw/cmssw/blob/0455dbf9d25a0d3b2acdfb4c7a085db1f41e46a9/HLTrigger/Configuration/python/HLT_75e33/modules/hltElePixelSeedsDoubletsL1Seeded_cfi.py#L14
corresponds to
https://github.com/cms-sw/cmssw/blob/515dff431bdfe4efa6bb6c9b46bb27041e5ab84f/RecoTracker/TkSeedGenerator/interface/SeedCreatorFromRegionHitsEDProducerT.h#L39
i.e. the consumer consumes the RegionsSeedingHitSets. The framework printout indicates that the IntermediateHitDoublets data product is not used for anything in the job.
Assuming the other 3 cases would be similar, I'd expect the printout to disappear with
process.hltElePixelHitDoubletsL1Seeded.produceIntermediateHitDoublets = False
process.hltElePixelHitDoubletsUnseeded.produceIntermediateHitDoublets = False
process.hltElePixelHitDoubletsForTripletsL1Seeded.produceSeedingHitSets = False
process.hltElePixelHitDoubletsForTripletsUnseeded.produceSeedingHitSets = False
New categories assigned: hlt,upgrade
@Martin-Grunewald,@mmusich,@Moanwar,@srimanob,@subirsarkar you have been requested to review this Pull request/Issue and eventually sign? Thanks
Assuming the other 3 cases would be similar, I'd expect the printout to disappear with
Thanks! I have followed up at https://github.com/cms-sw/cmssw/pull/48470
