Expanded agenda: 1. (Jim) Discussion of endpoints query function. We decided not to pursue this at this time for two reasons: (1) it's hard to define (is it relative to another communicator?) and (2) because knowing the number of endpoints is not helpful, you need the handles and a routine that returns the handles breaks MPI convention. 2. (Dan) Discussion of communicator comparison routines in the presence of endpoints. 3. (Pavan) Move toward resolution of MPI_Comm_free. Currently, the leading option is to leave MPI_Comm_free as a conventional collective (MPI_THREAD_MULTIPLE mode is required to free an endpoints communicator). We could pursue a lesser-collective MPI_Comm_endpoints_free (i.e. for lesser threading models) in a future proposal. ~Jim. On Sun, May 4, 2014 at 7:12 PM, Balaji, Pavan <[email protected]> wrote:

Agenda: Continue Endpoints discussion.

https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/MPI3Hybrid

— Pavan

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