> I did some performance tests of Yade and they are very good. But I am > confused about OpenMP because the results with the 1 and 2 threads are > almost identical. Maybe I have something wrong doing? I attach the used > scripts and results.
Hi, I put together a simpler benchmark based on examples/cyl.py. I put it to bzr branch at https://code.launchpad.net/~yade-dev/yade/cyl-bench. For the one that you sent: 1. if you don't use InteractionDispatchers, therefore the parallel performance will be MUCH worse (3 loops instead of 1) 2. SQLiteRecorder is just leftover, I assume. 3. First step should not be measured, since the collider is being initialized (not proportional to N) 4. Use InsertionSortCOllider::velocityBins, it eliminates lots of time spend otherwise in the collider. I will send the same for a 6-way Opteron machine. I think it is really RAM speed (and architecture) that makes the most difference. Cheers, Vaclav _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
