[ofa-general] Re: rate assignment for path queries
sashak at voltaire.com
Sun Nov 16 06:42:24 PST 2008
On 16:35 Fri 14 Nov , Hal Rosenstock wrote:
> On Thu, Nov 13, 2008 at 8:17 AM, Sasha Khapyorsky <sashak at voltaire.com> wrote:
> > Hi Or,
> > On 09:20 Thu 13 Nov , Or Gerlitz wrote:
> >> If opensm doesn't have a match on any qos-assignment rule (eg when there's
> >> no qos-config file), when coming to serve sa path query, my understanding
> >> is that the "qos related fields" of the partition would be used.
> >> For example, I have set the following partition config file which assigns
> >> <sl=1,rate=2> to the 0x8001 partition, and run without any qos file.
> >> Default=0x7fff,ipoib : ALL=full;
> >> RED=0x8001, ipoib, sl=1, rate=2, defmember=full : ALL=full;
> >> RED=0x8002, ipoib, sl=2, rate=3, defmember=full : ALL=full;
> >> When a path query is issued, Indeed sl=1 is returned but I see that a
> >> rate=6 (20Gbs) is returned where I configured rate=2 (2.5 Gbs).
> > For my best knowledge rate=2 in partition config file will be related to
> > corresponded IPoIB multicast group for this partition, and not to
> > PathRecord.
> There is a form of PR query that supports returning information on
> MGIDs when used as a DGID.
> > In PathRecord you get maximum available rate on the
> > requested path.
> Here you are talking about current OpenSM implementation.
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