Good to hear! Thank you for reporting, it made me spot the problem with clump.
Bruno On 31/01/12 00:59, Klaus Thoeni wrote: > 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 : [email protected] > Unsubscribe : https://launchpad.net/~yade-dev > More help : https://help.launchpad.net/ListHelp > -- _______________ Bruno Chareyre Associate Professor ENSE³ - Grenoble INP 11, rue des Mathématiques BP 46 38402 St Martin d'Hères, France Tél : +33 4 56 52 86 21 Fax : +33 4 76 82 70 43 ________________ _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp
