On Thu, 15 Jan 2009, Roy Stogner wrote: >> (A local-to-global mapping seems to be provided by PETSc.) > > Interesting - like a sparsity pattern for vectors. Is it shared > between multiple vectors?
I think yes, but I'm not sure. >> My idea would be that PetscVector creates the global-to-local mapping (for >> the ghost cells only) itself (and stores it, e.g. as a std::map<unsigned >> int, unsigned int>). This should still save a lot of memory compared with >> the serial vector version. > > Sounds like the best we can do. Maybe typedef the container to make > it easier for us to play with map vs. hash_map performance for it. Okay. (I've not done much yet, though.) Best Regards, Tim -- Dr. Tim Kroeger [email protected] Phone +49-421-218-7710 [email protected] Fax +49-421-218-4236 Fraunhofer MEVIS, Institute for Medical Image Computing Universitaetsallee 29, 28359 Bremen, Germany ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
