Lack of relval testing for PbPb skims

[mmusich]

Recently a new release (CMSSW_14_1_4_patch4) [1] was made available to fix few issues observed during the 2024 Heavy Ion setup runs and to introduce new / modify physics skims for the PbPb run, including PbPbZMu (see PR [2]).
A Tier 0 replay [3] was started in order to test the new release before putting in production and failure was observed in one of PbPb physics skims (PbPbZMu, details at [3] and #46458 (comment)).
As discussed in the tentative fix PR (#46584 (comment)) it appears there's no appropriate set of PbPb relvals to test the Heavy Ion skims.
It would be appropriate to add them to spot issues when changes are made in release, before leading to a crash in Tier0.

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[1] Production Release CMSSW_14_1_4_patch4 Available Now
[2] #46458
[3] Replay for CMSSW_14_1_4_patch4
[4] Replay for CMSSW_14_1_4_patch4 - #3

[cmsbuild]

cms-bot internal usage

[cmsbuild]

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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[mmusich]

assign pdmv

[mmusich]

@youyingli @mandrenguyen FYI

[cmsbuild]

New categories assigned: pdmv

@AdrianoDee,@DickyChant,@miquork you have been requested to review this Pull request/Issue and eventually sign? Thanks

[youyingli]

@youyingli @mandrenguyen FYI

These new PbPb skims have new triggers from 2024. There is no RAW data for test. But for the PbPbZMu skim with the same trigger as 2023, I can quickly make a PR to build a workflow for this skim with 2023 RAW data.

[mmusich]

These new PbPb skims have new triggers from 2024. There is no RAW data for test.

what about MC? The new menu is available in release since last week (see #46508).
Also there are a couple of PbPb setup runs that can be used taken during the week (e.g. 387456, which is the run in which the Tier0 replay failed)

[youyingli]

These new PbPb skims have new triggers from 2024. There is no RAW data for test.

what about MC? The new menu is available in release since last week (see #46508). Also there are a couple of PbPb setup runs that can be used taken during the week (e.g. 387456, which is the run in which the Tier0 replay failed)

As I find out the following are DISK available, I could use these files temporarily to make a PR for the test.

/HIForward10/Tier0_HIREPLAY_2024-v1194758/RAW
/HIPhysicsRawPrime1/Tier0_HIREPLAY_2024-v1194758/RAW

[AdrianoDee]

what about MC?

I was thinking the same thing. What is preventing us from testing the SKIMs on MC?

Edit: in general, also for pp.

[mmusich]

I could use these files temporarily to make a PR for the test.

I'd rather NOT depend on the products of a Tier0 replay for relval tests

[mandrenguyen]

what about MC?

I was thinking the same thing. What is preventing us from testing the SKIMs on MC?

Edit: in general, also for pp.

We don't have the 2024 trigger menu yet in MC.

[mmusich]

We don't have the 2024 trigger menu yet in MC.

how come? can't you just generate some on the fly in relvals? As mentioned the menu is in release...