Signed-off-by: Yevgeny Kliteynik <[EMAIL PROTECTED]> --- opensm/man/opensm.8.in | 14 +++++++++++++- 1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/opensm/man/opensm.8.in b/opensm/man/opensm.8.in index c1ea584..efadf8e 100644 --- a/opensm/man/opensm.8.in +++ b/opensm/man/opensm.8.in @@ -10,7 +10,7 @@ opensm \- InfiniBand subnet manager and administration (SM/SA) [\-g(uid) <GUID in hex>] [\-l(mc) <LMC>] [\-p(riority) <PRIORITY>] [\-smkey <SM_Key>] [\-r(eassign_lids)] [\-R <engine name(s)> | \-\-routing_engine <engine name(s)>] -[\-z | \-\-connect_roots] +[\-A | \-\-ucast_cache] [\-z | \-\-connect_roots] [\-M <file name> | \-\-lid_matrix_file <file name>] [\-U <file name> | \-\-lfts_file <file name>] [\-S | \-\-sadb_file <file name>] [\-a | \-\-root_guid_file <path to file>] @@ -122,6 +122,18 @@ separated by commas so that specific ordering of routing algorithms will be tried if earlier routing engines fail. Supported engines: minhop, updn, file, ftree, lash, dor .TP +\fB\-A\fR, \fB\-\-ucast_cache\fR +This option enables unicast routing cache and prevents routing +recalculation (which is a heavy task in a large cluster) when +there was no topology change detected during the heavy sweep, or +when the topology change does not require new routing calculation, +e.g. when one or more CAs/RTRs/leaf switches going down, or one or +more of these nodes coming back after being down. +A very common case that is handled by the unicast routing cache +is host reboot, which otherwise would cause two full routing +recalculations: one when the host goes down, and the other when +the host comes back online. +.TP \fB\-z\fR, \fB\-\-connect_roots\fR This option enforces a routing engine (currently up/down only) to make connectivity between root switches and in -- 1.5.1.4 _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
