Question #215877 on Yade changed: https://answers.launchpad.net/yade/+question/215877
Status: Open => Answered Jan Stránský proposed the following answer: Hello Giulia. could you please provide us with the script you use? I personally did some simulations with memory leaks for no obvious reason.. Thanks Jan Dne 3.12.2012 17:56 "Giulia Macaro" <question215...@answers.launchpad.net> napsal(a): > New question #215877 on Yade: > https://answers.launchpad.net/yade/+question/215877 > > Hello, > > I am running a very long simulation, in which a big sphere is loaded on a > packing of 50,000 smaller spheres settled under gravity force. > After 4 days of running, the simulation ends without any particular > reason. In the terminal it is only written "killed". > I have rerun the same test in the debug mode, compiling Yade with debug=1, > and then > > $ gdb /usr/bin/python > > GNU gdb (GDB) 7.1-ubuntu > Copyright (C) 2010 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later < > http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-linux-gnu". > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>... > Reading symbols from /usr/bin/python...(no debugging symbols found)...done. > > (gdb) run > /home/giulia/YetAnotherDynamicEngine/12.07.09_yade/YADE/bin/yade-bzr3040 > -j4 --debug 2012.11.28_1_realSph.py > > Starting program: /usr/bin/python > /home/giulia/YetAnotherDynamicEngine/12.07.09_yade/YADE/bin/yade-bzr3040 > -j4 --debug 2012.11.28_1_realSph.py > [Thread debugging using libthread_db enabled] > Welcome to Yade bzr3040 (debug build) > TCP python prompt on localhost:9000, auth cookie `cesaud' > [New Thread 0x7fffd6f2c700 (LWP 7675)] > [New Thread 0x7fffd672b700 (LWP 7676)] > > I did not get any information apart from [New Thread ... (LWP ... )] and > [Thread ... (LWP ...) exited] > and then at the end I got > > Program terminated with signal SIGKILL, Killed. > The program no longer exists. > > I also tried > (gdb) thread apply bt full > But I did not get anything. > > And then > (gdb) bt full > which gave me > No stack. > > I was recording the CPU and memory usage during the simulation. The > machine has 8 cores and 12GB of memory. The CPU was constant around 40% > (using 4 over 8 cores) but the total memory went from 31% to 99% in 24 > hours, then constant to 99% for the following 3 days, and then the test > ended. > I am not erasing any body. I am creating the spheres, apply gravity, wait > that the deposition ends, create the big sphere, and push the big sphere in > the packing very slowly. > I was expecting to use a lot of memory since I have a lot of particles, > but not that much... is that possible? I am wondering if the ending of the > simulation is related to the memory. > > > At this point I am also rerunning some periodic triaxial tests, with only > 5,000 particles. The memory usage has increased from 22 to 32% in 3 hours > of simulation, and it is still increasing... Has anybody encountered the > same increasing of memory? Is it expected in Yade? > > Thank you > Giulia > > -- > You received this question notification because you are a member of > yade-users, which is an answer contact for Yade. > > _______________________________________________ > Mailing list: https://launchpad.net/~yade-users > Post to : yade-users@lists.launchpad.net > Unsubscribe : https://launchpad.net/~yade-users > More help : https://help.launchpad.net/ListHelp > -- You received this question notification because you are a member of yade-users, which is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp