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Forum: Processes Involving Optical Photons
Re: Question Simulation Blocked (Ibrahim)
Date: 05 Nov, 2010
From: Gumplinger Peter <Gumplinger Peter>

Hi Ibrahym,

> Does anybody know why?

There isn't much you can do except find out the status of your random number generator at the beginning of the last event (or somewhere near before the last event) which is apparently hanging. It would be nice if I could point you to a document where this is explained for an event far along in a job's execution, but I can't without spending some time. Maybe somebody monitoring this Forum, can help. Or you'll have to just look for this information yourself. Some of our examples store and retrieve random generator seed information.

In any case, once you have the begin-of-event status you should relaunch just that one event by seeding the generator and add debug as needed until you find out where the program is stuck. This should work unless previous events overwrite execued memory (which they should not). If the program hangs inside the Geant4 source code, let us know.


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1 None: RE: Simulation Blocked   (Penny, Robert D. - 05 Nov, 2010)
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