On Fri, 22 Oct 2010, Tim Kroeger wrote: > On Thu, 21 Oct 2010, Roy Stogner wrote: > >> Would it make sense to loop over all active elements, not just local >> ones? > > That would certainly solve the problem, but it wouldn't scale well, would it? > (At least as long as ParallelMesh is not stable.)
At the moment it won't scale much worse than looping over active local elements. The predicate iterators were implemented (by John, I believe?) as nothing more complicated than iterator+predicate; they don't do any data structure tricks and so they don't get you out of an O(N_global) cost for iterating over every local element. We've never found much time being spent iterating over non-local elements when profiling so we've never had a reason to try to optimize it. --- Roy ------------------------------------------------------------------------------ Nokia and AT&T present the 2010 Calling All Innovators-North America contest Create new apps & games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
