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None Geant4 simulations with a very high (10^11) number of primary events 

Forum: Multithreading
Date: 13 Dec, 2017
From: Francesco Mirani <Francesco Mirani>

Hello experts,

I'm asking for help because I would like to perform simulations with a very high number of primary events (~ 10^11). In each event I generate a proton with energy extracted from a distribution.

Since the maximum number of events that I can set for each run can't be greater than ~ 10^9, my plan is to perform ~100 simulations (each one with ~ 10^9 primary events and a different seed for the random number generator). Then I will merge the results of each run. The simulations will be performed in multithreading mode on a 36 cores machine.

I would like to ask if there are some specific guidelines to perform Geant4 simulations with a very high number of events. In particular, is there a preferred Random Engine for this specific task (now I'm using "RanecuEngine") and a preferred way to seed the generators?

Any help would be greatly appreciated.

Best regards

Francesco

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