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Forum: Installation and Configuration
Re: Question Geant4.9.5 memory consumption (Matthias Volnhals)
Re: Idea Re: Geant4.9.5 memory consumption (Matej Batic)
Date: 01 Feb, 2012
From: Matthias Volnhals <Matthias Volnhals>

Hello! Thanks a lot for your response. I used valgrind as you proposed, which gave me the outputs I attached to this message. I used both Geant4.9.3 and Geant4.9.5 configuration; as usual, with 9.5 the memory consuption was much higher. I must admit that from looking at the files I can't see the problem, i.e. the reason for the huge deviation between the two versions.
I also did a long-term run without valgrind, where 45 Mio. events were generated. With Geant4.9.3, this takes 75.8 MB of RAM; when I link the SAME code with 9.5 libraries, it uses 183.8 MB at the beginning of the run and after 10000 events already 317.5 MB are occupied.
Could there be an explaination for this behaviour besides a memory leak? Are there any objects stored internally, e.g. for scoring purpose etc., in Geant4 that I do not use or haven't noticed? Any things that are much larger in version 9.5 than they were in 9.3?
Greetings,

Matthias V.


   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2012/02/01/05.49-26664-valgrind-Geant4.9.3.log
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2012/02/01/05.49-55605-valgrind-Geant4.9.5.log

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1 More: Re: Geant4.9.5 memory consumption   (Gabriele Cosmo - 01 Feb, 2012)
(_ Feedback: Re: Geant4.9.5 memory consumption   (Matthias Volnhals - 08 Feb, 2012)
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