Fix daughter labels when running parallel merger

AliceO2Group · Jan 25, 2021 · c2e368a · c2e368a
1 parent db8a940
commit c2e368a
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/DataFormats/simulation/include/SimulationDataFormat/MCTrack.h b/DataFormats/simulation/include/SimulationDataFormat/MCTrack.h
@@ -202,6 +202,8 @@ class MCTrackT
   }
   bool getInhibited() const { return ((PropEncoding)mProp).inhibited; }
 
+  bool isTransported() const { return getToBeDone() && !getInhibited(); };
+
   /// get the string representation of the production process
   const char* getProdProcessAsString() const;
 

diff --git a/run/O2HitMerger.h b/run/O2HitMerger.h
@@ -343,7 +343,10 @@ class O2HitMerger : public FairMQDevice
       originbr->GetEntry(index);
       for (Int_t i = 0; i < nprimaries[index]; i++) {
         auto& track = incomingdata->at(i);
-        track.SetFirstDaughterTrackId(-1);
+        if (track.isTransported()) { // reset daughters only if track was transported, it will be fixed below
+          track.SetFirstDaughterTrackId(-1);
+          track.SetLastDaughterTrackId(-1);
+        }
         targetdata->push_back(track);
       }
       incomingdata->clear();