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Forum: Analysis
Re: None Going to create slave ntuple from main problem (David Sangcheol Lee)
Date: 30 Apr, 2018
From: Ivana Hrivnacova <Ivana Hrivnacova>

Hello,

The messages "Going to create slave ntuples from main" are just information messages which are issued when you run with activated ntuple merging. However up to now we had no report about slow-down due to merging ntuples.

In your code, you call

  analysisManager->Write();
  analysisManager->CloseFile();

both in Run::EndOfRun() and RunAction::EndOfRunAction(). Could you remove this call from Run::EndOfRun() ?

Also, if this does not make any difference, could you run your application without ntuple merging to see if this causes the slow down?

And finally, could you let us know your version of Geant4 ?

Best regards,

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1 Ok: Re: Going to create slave ntuple from main problem   (David Sangcheol Lee - 30 Apr, 2018)
(_ None: Re: Going to create slave ntuple from main problem   (Ivana Hrivnacova - 02 May, 2018)
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