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Re: coordinates... [message #12549 is a reply to message #12495]

Mon, 22 August 2011 16:06

StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino

first-grade participant

From: *17-79-r.retail.telecomitalia.it

Dear Mohammad,
only now I have the time to check carefully your presentation.

If I have understood well, the BG events are taken in sequential order. I have not well understood what happens once you consumes all the BG events. Is the BG file rewinded, or it just stops?

I mean, let us assume we want to run 100 signals events, and an average of 20 bg events for each signal. In this case we would need 2000 bg events, but of course if one uses some TF1 time distribution the number could be also exceeded. What happens in this case? I think the answer is in your slide 14 -> the code limits the number of processed signals. I would like just to be sure.

Maybe a good way in order to have not so huge bg files would be to take bg events randomly, so that the same bg event could be used several times in different signal topologies... or maybe I have not understood well the philosophy of such mixing code Smile

Could you please help me to clarify the concept?

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[Message index]

		pandaroot meeting Tuesday 16 August, 14:00 By: Johan Messchendorp on Sat, 13 August 2011 23:55
		coordinates... By: Johan Messchendorp on Mon, 15 August 2011 22:18
		Re: coordinates... By: Mohammad Al-Turany on Tue, 16 August 2011 14:44
		Re: coordinates... By: StefanoSpataro on Mon, 22 August 2011 16:06
		Re: coordinates... By: Mohammad Al-Turany on Thu, 25 August 2011 22:44

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