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Subject: [OMPI devel] barrier before calling del_procs
From: Yossi Etigin (yosefe_at_[hidden])
Date: 2014-07-21 11:21:29


We get occasional hangs with MTL/MXM during finalize, because a global synchronization is needed before calling del_procs.
e.g rank A may call del_procs() and disconnect from rank B, while rank B is still working.
What do you think about adding an MPI barrier on COMM_WORLD before calling del_procs()?