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From: Chris Gordon-Smith <use.address@my.homepage>
Newsgroups: comp.lang.c++
Subject: Factors Inhibiting Reproducability Of Simulation Results
Date: 10 Sep 2011 14:26:19 GMT
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I just managed to get my artificial chemistry simulation producing the 
same results when I run it twice with the same parameters. Perhaps some  
members of the group will be interested in the two factors that led to 
differing results:

1)   My graphics library (GTKMM2) calling rand() at random times between 
the calls made by my code
2)   My code storing pointers in an std::set, and then iterating over the 
set. The ordering is dependent on the memory locations of the dynamically 
allocated objects to which the pointers point.

Chris Gordon-Smith
www.simsoup.info