Hi Bruno, there is a comparison of new and old collider. A newer one is slower, but it can be because of tons of warnings like this:
931937 ERROR yade.InteractionContainer /home/gladk/dem/yade/cleanCompBruno/yade/core/InteractionContainer.cpp:55 erase: InteractionContainer::erase: attempt to delete non-existent interaction ##14889+15066 It can be related to the bug 813925 [1] The script, what I used, creates and removes bodies very actively. Speed, iter/sec -j Old collider New_Collider: 1 7.94 6.12 2 13.85 11.4 3 14.83 14.2 [1] https://bugs.launchpad.net/yade/+bug/813925 Anton -- You received this bug notification because you are a member of Yade developers, which is the registrant for Yade. https://bugs.launchpad.net/bugs/729079 Title: Performance optimization of InsertionSortCollider Status in Yet Another Dynamic Engine: New Bug description: Sergei Dorofeenko (https://launchpad.net/~sergei.dorofeenko) found, that InsertionSortCollider is probably is a "bottle neck" in simulations with >10^5 number of particles even in many-threads mode. http://www.mail-archive.com/[email protected]/msg06573.html Сitation: "...I did a perfomance test for parallel mode and results in no good. Performance boost only about 40% from 1 thread to 4 thread for 200k particles... Cause is a non-parallelised InsertionSortCollider, who need about 80% time with 4 threads. Results attached." To manage notifications about this bug go to: https://bugs.launchpad.net/yade/+bug/729079/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
