Thank you, Wolfgang, problem solved. But in a much simpler way. My basis object is not easily serializable so I have to recreate it and destroy the old one anyway (for now) once cells are moved to other nodes. So I do not send send them but rather create them and work with them on each node (if the corresponding cell is locally owned) and just collect some serializable information on a master process with mpi_gather.
I have a little technical question though: Can I attach the mpi_communicators that you use in the deal.ii tutorials also somehow to a boost::mpi::communicator? https://www.boost.org/doc/libs/1_48_0/doc/html/boost/mpi/communicator.html Never tried it but according to the documentation it seems possible. Best, Konrad On Friday, August 23, 2019 at 6:35:18 PM UTC+2, Wolfgang Bangerth wrote: > > On 8/23/19 7:33 AM, Konrad wrote: > > > > Thanks, I see this class makes it possible to identify cells globally in > a > > distributed triangulation. I don't see though how the objects in the > std::map > > are distributed among cluster nodes as the cells are. Am I missing > something here? > > Yes, the data transfer is difficult because you need to figure out who > owns a > cell for which you have an entry in your local map after > refinement/rebalancing. Then you need to pack the data, send it to the new > owner, and possibly receive information about other cells you now own > after > refinement/rebalancing. > > You might want to look at how other classes do this that store non-trivial > data on each cell. An example is ContinuousQuadratureDataTransfer. > > Best > W. > > -- > ------------------------------------------------------------------------ > Wolfgang Bangerth email: bang...@colostate.edu > <javascript:> > www: http://www.math.colostate.edu/~bangerth/ > > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/3daf347a-3661-4eb9-ae05-6a8134141247%40googlegroups.com.
