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Accessing for splitted simulation file [message #8424]

Wed, 06 May 2009 10:23

donghee
Messages: 385
Registered: January 2009
Location: Germnay

first-grade participant

From: *kph.uni-mainz.de

Dear all,

I have a question for MC file accessing.
Few simulation *.root files, which is produced as a simulation file, are splitted in pandaroot, automatically, because of a large amount of data size.

After running the simulation, I have total three files.
simulation.mc.root
simulation.mc_1.root
simulation.mc_2.root

How can I aceess all three files in digitization and reconstruction stage?

Thank you!

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Re: Accessing for splitted simulation file [message #8433 is a reply to message #8424]

Wed, 06 May 2009 12:01

Ralf Kliemt
Messages: 507
Registered: May 2007
Location: GSI, Darmstadt

first-grade participant

From: *to.infn.it

Hello,

As far as I recall you should use
fRun->AddFriend(file);
with every file subsequently. I think there was a even message about that in the forums earlier, but I cannot find it.

Kind regards, Ralf.

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Re: Accessing for splitted simulation file [message #8435 is a reply to message #8424]

Wed, 06 May 2009 12:09

donghee
Messages: 385
Registered: January 2009
Location: Germnay

first-grade participant

From: *kph.uni-mainz.de

Thank you for you idea.

I think that addfriend() is slightly different concept, because it would have an extra information.

I assume that I need some kind of TChain class with the function of tchain->add();

I will try it, which you mentioned.

Thank you!

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Re: Accessing for splitted simulation file [message #8438 is a reply to message #8435]

Wed, 06 May 2009 12:20

StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino

first-grade participant

From: *to.infn.it

If I remember well it should be:

fRun->AddFile(namefile)

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