- > Yes, clumps have been implemented in Yade to simulate agregates of > spheres. With a few caveats, though: they are nut supported by NewtonsDampedLaw and they are not wrapped from python. I can do the latter if it is needed, it is quite simple. The former would however require a consent on the order of clump/clumped bodies in BodyContainer > >> - and my last question: is it available to conduct a parallel >> processing on a network to decrease the computation time? > We are working on it, but I don't think it is fully functional yet. Hmm, by accident I was just composing a call for developers on that few days ago. Let me post it here, then:
Yade is not able to run parallel computation, even though all papers mention that DEM, as an explicit method, parallelizes very well. While processors have more cores, but the speed doesn't increase much, supporting computation on multiple cores is becoming critical. We have quad-cores now, there will be 6/8 cores in a year or so, Intel is working on 96-core Larrabee platform, there is new standard (finally) OpenCL for running computations on graphics cards that have easily over 500 stream processors, there are Cell processors with 6 (32 in the future) vector computation units. Yade is going to lose the game if this trend is not caught up with. A decent implementation of parallelism in Yade is an effort adequate for a PhD. Up to now, there has only been isolated efforts (lock-free containers, ParallelEngine), but only as as part-time jobs to scratch an itch; someone devoted to this for a few years is needed. I think it is maybe 30% physics, the rest being quite low-level (and interesting) software engineering effort. If you (anyone) are in position to take PhD students, please consider this as something of big importance for Yade future. I believe I am speaking for other developers here. Vaclav _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp _______________________________________________ yade-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/yade-users
