Merge pull request #5762 from amaslenn/platform-mellanox-conf-v4

platform/mellanox: update default configuration — v4.0.x

contrib/platform/mellanox/optimized.conf

@@ -56,12 +56,10 @@
 
 # See "ompi_info --param all all" for a full listing of Open MPI MCA
 # parameters available and their default values.
-coll_fca_enable = 0
-scoll_fca_enable = 0
 #rmaps_base_mapping_policy = dist:auto
 coll = ^ml
 hwloc_base_binding_policy = core
-btl = vader,openib,self
+btl = self
 # Basic behavior to smooth startup
 mca_base_component_show_load_errors = 0
 orte_abort_timeout = 10
@@ -77,3 +75,6 @@ oob_tcp_sndbuf = 32768
 oob_tcp_rcvbuf = 32768
 
 opal_event_include=epoll
+
+bml_r2_show_unreach_errors = 0
+