|Message: geant4 general particle source memory usage||Not Logged In (login)|
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I am using the gps to simulate proton therapy patient irradiations with many pencil beams.
Unfortunately I need about 26000 entries of the sort:
# BeamNum 4 - PBsNum 636 - subPBsNum 25
/gps/pos/rot1 0.500 0.866 0.000
/gps/pos/rot2 0 0 1
/gps/pos/sigma_r 2.5 mm
/gps/pos/centre -82.862092 54.686014 107.340010 cm
/gps/direction 0.866 -0.500 -0.000
/gps/ene/mono 130.86 MeV
# /gps/ene/mono 132.00 MeV
/gps/ene/sigma 0.660 MeV
Running my code using 1 such entry in my macro file vs the complete list shows me memory usage of ~700 MB vs ~6GB respectively.
Besides trying to limit the number of pencil beams I am using, are there suggestions on how to limit the memory usage? Is this behavior normal?
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