yade-dev team mailing list archive

[Václav Šmilauer <eu@xxxxxxxx>]

> After some Yade iterations (more than about 600 000) I save a xml. 
> Then when I reload this xml all is fine, but when I run the 
> simulation, Yade is not able to iterates: the ram memory used 
> increases until having the following message:
>
> Yade [3]: 117953 FATAL yade.ThreadRunner 
> /home/luc/Sim_DEM2/YADE_lbm/yade-0.50-lbm-dev_mainrepo/core/ThreadRunner.cpp:31 
> run: Exception occured:
> std::bad_alloc
>
> I use Yade 0.50, I tried to run Yade throught Valgrind and here is the 
> result below. Have you got an idea where to look for to solve this 
> problem?
Hi, the problem is in the collider (thanks for the valgrind log). I 
doubt it is an infinite loop, I would suspect incorrect initialization 
of bounds, then spurious interactions are created until RAM gets 
exhausted; but I don't have the 0.50 code at hand to check.

To be honest, I am not going to fix bugs in 0.50 (though I can help 
someone if necessary), that version was using yade::serialization which 
was much inferior to boost::serialization (in terms of both speed and 
robustness) used now.

If someone can reproduce that with more recent versions, then it will 
need to be fixed.

Cheers, Vaclav