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Subject: [OMPI devel] sm BTL "extra procs"
From: Eugene Loh (Eugene.Loh_at_[hidden])
Date: 2008-12-22 11:47:16

Why does the sm BTL allocate "extra procs"?


In particular:

*) sm_max_procs is -1 (so there is no max)
*) sm_sm_extra_procs (sic, this is the ompi_info name) is 2

So, if there are n procs on the node, it allocates FIFOs for n*(n+2)
connections. Why?