Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: [OMPI users] MPI_Comm_split
From: Hicham Mouline (hicham_at_[hidden])
Date: 2010-11-23 12:03:52


Hello

If I have a 256 mpi processes in 1 communicator, am I able to split that communicator, then again split the resulting 2 subgroups, then again the resulting 4 subgroups and so on, until potentially having 256 subgroups?
Is this insane in terms of performance?

regards,