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[PWGHF] utilsEvSelHf: add nPvContributorsMax configurable - #18514

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lubynets wants to merge 1 commit into
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lubynets:hfevsel
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lubynets wants to merge 1 commit into
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lubynets:hfevsel

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@lubynets

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Some collisions in MC have abnormally large number of PV contributors, O(1000) instead of O(10) in pp collisions (for the reasons which are not clear yet). It brings to increasing of combinatorics of 3-prong triplets by 2 orders of magnitude, leading to OOM fail when processing the problematic dataframe.
This PR provides a workaround: nPvContributorsMax configurable, allowing for skipping the affected collision.
The default value of the configurable is set to $10^6$, so the observable behavior won't change unless the user intentionally changes this configurable.
Tagging @fgrosa

@github-actions github-actions Bot added the pwghf PWG-HF label Oct 29, 2026
@github-actions github-actions Bot changed the title utilsEvSelHf: add nPvContributorsMax configurable [PWGHF] utilsEvSelHf: add nPvContributorsMax configurable Oct 29, 2026
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O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 0 disabled

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Error while checking build/O2Physics/staging for 4b5e0a3 at 2026-10-29 23:50:

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