Hi Bruno, thanks for having a look at my scripts!
I know that the clump is disappearing sometimes on the display but the simulation itself seems to be ok so I never had a closer look at it. But it was good you did ;-) I just had a look at rev 3010 and now I got some speed up too which is great. I will get rid of the GravityEngine and just use NewtonIntegrator::gravity. Thanks again, Klaus On Tue, 31 Jan 2012 08:02:30 AM Bruno Chareyre wrote: > >> (Don't use Newton::gravity though, it breaks something in your > >> > >> script and I'm still investigating). > > > > It is not related to the new Newton::gravity, it only revealed another > > bug in eigen's quaternions. > > In your script, Klaus, the clump sometimes disappear, did you notice? It > > is because the axisAngle conversion of clump members orientation is nan > > from time to time > > Actually, no... The nan quaternions break the display but they seem to > be harmless. The problem was https://bugs.launchpad.net/yade/+bug/923929 > It is fixed in bzr3009. Below is what I get with your 02_net-wall_par.py > script Klaus (-j2, default collider setting, for 3009 this is without > gravity engine). > The speedup is only 25%. As said before, it can't be much better since > the collider takes only 14% of total time initially. > Still, all engines are a bit faster. :) > > Bruno > > > bzr2999 > Name > Count Time Rel. time > --------------------------------------------------------------------------- > ---------------------------- ForceResetter > 20050 > 7068191us 3.38% > InsertionSortCollider 1855 > 29429129us 14.06% > InteractionLoop 20050 > 92135400us 44.03% > "gravity" 20050 > 23556447us 11.26% > "newton" 20050 > 57063846us 27.27% > TOTAL > 209253016us 100.00% > > bzr3009 > Name > Count Time Rel. time > --------------------------------------------------------------------------- > ---------------------------- ForceResetter > 20050 > 7087997us 4.68% > InsertionSortCollider 634 > 11046290us 7.29% > InteractionLoop 20050 > 80287582us 52.98% > "newton" 20050 > 53130390us 35.06% > TOTAL > 151552261us 100.00% _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : yade-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
