Does it break compilation without cgal? Oh dear... Then it's another bug sorry (ZECollider is the problem I guess?), cgal is not mandatory. I'll document the new algorithm to explain parameters, so you can tune the collider for different problems. How much speedup do you have in your simulations?
B On 28/09/11 08:17, Klaus Thoeni wrote: > Hi guys, > > don't forget to enable feature cgal before compiling ;-) > > I checked my test with the implementation in branch lp:~bruno- > chareyre/yade/collide2. Computational speed improves compared to trunk > version. Very good! And clumps are working as well. > > Good job Bruno! > > Cheers > Klaus > > On Tue, 27 Sep 2011 10:43:28 pm Bruno Chareyre wrote: >> There was indeed a bug with clumps (fixed), but the thing I don't >> understand is the branch did not contain the changes. Bazaar branches >> are not quite user-friendly for commits/updates... >> Klaus, you probably didn't try the good code (but then how did you spot >> the bug? I'm lost...). >> Could you send me a copy of the core/bound.hpp you downloaded, just to >> be sure? >> >> Bruno >> >> On 26/09/11 10:37, Bruno Chareyre wrote: >>> (moving to yade-dev) >>> >>> No guess yet. Thanks for notifying. Which scripts gives the segfault? >>> >>> B >>> >>> On 26/09/11 07:43, Klaus Thoeni wrote: >>>> Hi Bruno, >>>> >>>> I tested your implementation with my examples (dynamic problem with >>>> about 10000 particles) and the computational time in >>>> InsertionSortCollider slightly improved as expected. >>>> >>>> However, when running your branch with examples with clumps gives a >>>> Segmentation Fault. Any guess? >>>> >>>> Klaus >>>> >>>> On Tue, 20 Sep 2011 07:29:02 AM Bruno Chareyre wrote: >>>>> Hi all, >>>>> >>>>> I worked on some optimizations of contact detection recently and I >>>>> would like to get feedback from you to detect possible bugs and >>>>> confirm the speedup for different applications. If everything is ok, >>>>> the changes can be part of the next release after some code cleanup >>>>> and documentation. >>>>> >>>>> If you have a chance, could you please download and compile the branch >>>>> lp:~bruno-chareyre/yade/collide2 (bzr checkout >>>>> lp:~bruno-chareyre/yade/collide, cd yade, scons, as usual) and try this >>>>> with your own problems? >>>>> I would be gratefull if you could report differences in terms of >>>>> computation speed. >>>>> I don't expect big improvements for small quasistatic problems. The >>>>> speedup is more likely to happen on large and/or dynamic problems, >>>>> where it should range between x2 and x3, or even more in multithread. >>>>> Some results are reported here: >>>>> https://yade-dem.org/wiki/Colliders_performace#Improved_InsertionSort >>>>> >>>>> Thanks. >>>>> >>>>> Bruno -- _______________ 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
