|Message: Re: /random/setSeeds question||Not Logged In (login)|
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I use /random/setSavingFlag 1 and compare the output for two runs in which I am sure that I used different numbers in /random/setSeeds. The files CurrentRun.rndm and CurrentEvent.rndm are identical, as is the output of e.g. /tracking/verbose 1.
These commands I use:
/random/setSeeds 770353837 70597151 /random/setSavingFlag 1 /run/beamOn 10
/random/setSeeds 575841909 838392975 /random/setSavingFlag 1 /run/beamOn 10
I have runManager->Initialize(); in my main(), and no /run/initialize in my macro (but that should not make a difference).
In my efforts to get different output for different seeds, I also added the line
Would that also initialize the generator?
Otherwise I do not see how and where I would hardcode the seeds.
I also saw several messages on the forum reporting the same or similar problem, unfortunately without giving a solution.
On Fri, 11 Jul 2014 19:05:36 GMT, Gumplinger Peter wrote:
> Stefan, > > I can't reproduce your finding. When I change the two arguments of the > command > > /random/setSeeds > > my executable produces different events. I tested this with a program > that has: > > runManager->Initialize(); > > in the main() as well as one were this line is missing and instead the > G4RunManager is initialized with the UI command: > > /run/initialize > > I can put the /random/setSeeds command before or after /run/initialize > in the macro, the results are the same so long as the /random/setSeeds > command precedes /run/beamOn > > I suspect that you have hardcoded the initial seed in C++ somewhere in > your source. > > Peter >
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