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Question How to split numerous events, to store and to accumulate their results? 

Keywords: numerous event per run split store
Forum: Run Management
Date: 26 May, 2006
From: Shahrokh <Shahrokh>

Hi,

I need to simulate 10^9 events per run but this is time consuming. 
For running, the computer needs to power on for several days. 
My computer is not so much powerful for running several days 
and I can not power on the computer for this long time. 
Thus, I think to split events to multiple steps including 10^6 events per step. 
So, to simulate 10^9 events, I need to do step by step and to store the results of each step. 
After doing one step, its results must be accumulated with the results of the previous steps.
Could you please answer me the following questions:
1) How can I store the results of each step (for example 10^6 events per step) in a file?
2) How can I accumulate the results of each step by the ones of the previous steps in a file?
3) Does this process mean "pile up" in geant4?
4) If so, which class of geant4 is used?

Please help me, 
Thanks a lot,
Shahrokh.

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