[PWGCF] flow task: add kIsGoodITSLayersAll event selection (#9314)

Author: Luzhiyongg

PWGCF/Flow/Tasks/flowTask.cxx

@@ -77,6 +77,7 @@ struct FlowTask {
   O2_DEFINE_CONFIGURABLE(cfgEvSelkNoSameBunchPileup, bool, true, "rejects collisions which are associated with the same found-by-T0 bunch crossing")
   O2_DEFINE_CONFIGURABLE(cfgEvSelkIsGoodZvtxFT0vsPV, bool, true, "removes collisions with large differences between z of PV by tracks and z of PV from FT0 A-C time difference, use this cut at low multiplicities with caution")
   O2_DEFINE_CONFIGURABLE(cfgEvSelkNoCollInTimeRangeStandard, bool, true, "no collisions in specified time range")
+  O2_DEFINE_CONFIGURABLE(cfgEvSelkIsGoodITSLayersAll, bool, true, "cut time intervals with dead ITS staves")
   O2_DEFINE_CONFIGURABLE(cfgEvSelMultCorrelation, bool, true, "Multiplicity correlation cut")
   O2_DEFINE_CONFIGURABLE(cfgEvSelV0AT0ACut, bool, true, "V0A T0A 5 sigma cut")
   O2_DEFINE_CONFIGURABLE(cfgGetInteractionRate, bool, false, "Get interaction rate from CCDB")
@@ -599,6 +600,11 @@ struct FlowTask {
       // no collisions in specified time range
       return 0;
     }
+    if (cfgEvSelkIsGoodITSLayersAll && !collision.selection_bit(o2::aod::evsel::kIsGoodITSLayersAll)) {
+      // from Jan 9 2025 AOT meeting
+      // cut time intervals with dead ITS staves
+      return 0;
+    }
     auto multNTracksPV = collision.multNTracksPV();
     auto occupancy = collision.trackOccupancyInTimeRange();
     if (cfgEvSelOccupancy && (occupancy < cfgCutOccupancyLow || occupancy > cfgCutOccupancyHigh))

PWGCF/GenericFramework/Core/GFWWeightsList.cxx

@@ -46,6 +46,9 @@ void GFWWeightsList::addGFWWeightsByName(const char* weightName, int nPtBins, do
   if (!list) {
     init("weightList");
   }
+  if (reinterpret_cast<GFWWeights*>(list->FindObject(weightName))) {
+    return;
+  }
   GFWWeights* weight = new GFWWeights(weightName);
   weight->SetPtBins(nPtBins, ptBins);
   weight->Init(addData, addMC);
@@ -66,6 +69,9 @@ void GFWWeightsList::addGFWWeightsByRun(int runNumber, int nPtBins, double* ptBi
   if (!list) {
     init("weightList");
   }
+  if (runNumerMap.contains(runNumber)) {
+    return;
+  }
   GFWWeights* weight = new GFWWeights(Form("weight_%d", runNumber));
   weight->SetPtBins(nPtBins, ptBins);
   weight->Init(addData, addMC);