Yes, this is expected: the new is better with more threads and also with more bodies. How many bodies in your simulation? The fact that you find worst speed for j=1 is annoying though... Until now I only found new speed at least equal to old, but you found some cases where new < old. It makes the choice of moving to the new algorithm difficult, or it suggests to have two colliding logics but it is uneasy since it also affects Newton, aabb dispatching, interaction container...
We need however to consider the tuning of parameters. Maybe the default values I defined are not good in your case and another optimum can be found. If you could send me a simplified script I could test. Or for a simple test, you could just decrease verletDist. The default is 0.9, you could try the same as in the old algorithm: 0.05, and see what happens. Bruno On 18/10/11 18:23, Anton Gladky wrote: > Ok, seems, warnings are gone. > > Speed, iter/sec > -j Old collider New_Collider: > 1 7.94 6.7 > 2 13.85 12.89 > 3 14.83 16.11 > > The new collider works better with threads more than 2. > > Anton > > > > > On Mon, Oct 17, 2011 at 3:57 PM, Bruno Chareyre > <[email protected]> wrote: >> Hi Anton, >> >> I commited fixes for the collider (branch collide2, r2925) and for cgal >> feature. I don't find any problem when removing bodies now, but let you >> try with your scripts. >> Now, all interactions should be removed correctly after deleting bodies. >> >> Bruno >> > _______________________________________________ > 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
