MadAnalysis 5

some warning messages for root files

Asked by Juhi Dutta

Hi,

I am analysing a root file with madanalysis v1.4. I have created the root file in the same desktop as I am running madanalysis on. I receive some warning messages repeatedly for other root files as well) such as:

WARNING: the input file has been produced with ROOT version 1053436 whereas the loaded ROOT libs are related to the version 53434
=> sample format: Delphes-ROOT file produced by Delphes.
        => progress: [> ]
WARNING: GenParticle corresponding to a photon is not found in the gen table

The final warning occurs repeatedly until it finishes reading the entire file. I am not sure why they occur and if they should be worried about. Your thoughts on this matter will be very helpful.

Also in the newest version, does root have to be installed to process root files? It says ROOT format is not supported. The ROOT package is required. Instead of reinstalling root, is there a way that I can link the existing root path in madanalysis ?

Thanks & Regards,

Juhi

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MadAnalysis 5 Edit question
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Benjamin Fuks
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Best Benjamin Fuks (fuks) said : 		#1

Dear Juhi,

> WARNING: GenParticle corresponding to a photon is not found in the gen table
This is fine, you can safely ignore this warning.

> The final warning occurs repeatedly until it finishes reading the entire file. I am not sure why they occur and if they should be worried about. Your thoughts on this matter will be very helpful.
The repeated broadcast of these warnings in principle slow down the analyzer by a lot. Please try with v1.5, This should be fixed in there (only the first occurences of the warnings should be printed).

> Also in the newest version, does root have to be installed to process root files? It says ROOT format is not supported. The ROOT package is required. Instead of reinstalling root, is there a way that I can link the existing root path in madanalysis ?
Normally, if your environment variables are properly setup, MA5 should be able to find it alone. The other option would be to edit the file madanalysis/input/installation_options.dat and add the path to your root installation in it.

Regards,

Benjamin

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Juhi Dutta (dutta-juhi91) said : 		#2

Thanks Benjamin Fuks, that solved my question.