message: PbPb2 addtask: add option to switch off THnSparse to save memory
diff: @@ -40,6 +40,7 @@ void AddTask_GammaConvV1_PbPb2( Int_t trainConfig = 1,
  TString periodNameV0Reader = "",
  Bool_t runLightOutput = kFALSE, // switch to run light output (only essential histograms for afterburner)
  Bool_t processAODcheckForV0s = kFALSE, // flag for AOD check if V0s contained in AliAODs.root and AliAODGammaConversion.root
  + Bool_t enableUseTHnSparse = kTRUE,
  TString additionalTrainConfig = "0" // additional counter for trainconfig, this has to be always the last parameter
  ) {
  @@ -326,6 +327,7 @@ void AddTask_GammaConvV1_PbPb2( Int_t trainConfig = 1,
  task->SetDoMesonQA(enableQAMesonTask); //Attention new switch for Pi0 QA
  task->SetDoPhotonQA(enableQAPhotonTask); //Attention new switch small for Photon QA
  task->SetDoPlotVsCentrality(kTRUE);
  + task->SetDoTHnSparse(enableUseTHnSparse);
  //connect containers
  AliAnalysisDataContainer *coutput =
  