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PHS Synthetic#

Monitor if plots are not empty and timestamps are updated.

Ignore any red messages except "Number of entries has not changed in the past cycle".

If you see "Number of entries has not changed in the past cycle" but run is still ongoing inform the oncall.

[QC on EPN] Cell occupancy#

cluster_occupancy

  • The plot shows cell occupancy map in all 4 modules
  • Note that because of a very little statistics replayed in synthetic runs, PHS occupancy is rather sparse.
  • In case if plots are empty call the PHS on-call

[QC on EPN] Errors occurance#

errors_occurance

  • The plot shows decoder error occurance per event.
  • For synthetic runs no decoder errors are expected. If plot is not empty please inform the PHS on-call.
  • Please note that "Ok" message is false in case when there are enrties.

Bad example: errors present

Bad example: errors present but message is "Ok"

Minimal duration after SOR before taking any action required by these instructions: 5 min

Known issues#

  • COSMIC, TECHNICAL, PHYSICS_PP runs Cell HG occupancy, mod[1-4]: white horizontal stripes can be seen which differs from the reference plots. QC shifter can ignore these patterns, because they are caused by dynamic FEE mask which is changed by the PHOS experts without prior notice. Only completely empty plots should be reported by the QC shifter to PHOS/CPV on-call
  • COSMIC, TECHNICAL, PHYSICS_PP runs Cell HG occupancy, mod1 shows missing data in the area x=(32,47);z=(0,27) since end of March 2023. This is a known issue and is being investigated by PHS experts. No need to report it in the QC EOS reports and no calls to PHS/CPV shifters are needed.
  • COSMIC, TECHNICAL, PHYSICS_PP runs. Sometimes QC shifters report on the error message in EPN infoLogger: Trailer decoding error: Last RCU trailer word not found. These errors are persistent, they appear in all COSMIC, TECHNICAL, PHYSICS runs since the beginning of Run3, and caused by a bug in SRU firmware. All these errors should be ignored.