[ofa-general] Re: OpenSM and fat tree

[Chris Worley]

On Thu, May 15, 2008 at 10:10 AM, Hal Rosenstock <hrosenstock at xsigo.com> wrote:
> Chris,
>
> On Thu, 2008-05-15 at 09:52 -0600, Chris Worley wrote:
>> Is there any command line utility to tell nodes that don't see the
>> route change to "go ask the SM again for your routes"... or "clear the
>> route table"?
>
> I'm not sure what you're asking. There is no route table at end nodes;
> only switch nodes and the SM maintains these. The end node only has path
> records which it has retrieved and perhaps cached. Path records should
> be refreshed when SM or local LID changes which are local events to the
> end node.

After an sm change (i.e. using the "-r" switch), nodes can't ping each
other over IPoIB (other protocols also can't communicate).

Restarting the OFED stack works, but modules won't unload if there was
something active (i.e. Lustre), so the only recource to getting the
OFED stack working again is a hard reboot.

That's what I'd like to avoid if possible.

Chris
>
> -- Hal
>
>> On Thu, May 15, 2008 at 5:19 AM, Sasha Khapyorsky <sashak at voltaire.com> wrote:
>> > Hi Hal,
>> >
>> > On 04:19 Mon 12 May     , Hal Rosenstock wrote:
>> >>
>> >> I filed this as bug 1031:
>> >> https://bugs.openfabrics.org/show_bug.cgi?id=1031
>> >>
>> >> > It would be nice if I could reproduce it in simulation.
>> >>
>> >> Yes, that would be nice; but I don't have a sim case.
>> >
>> > Do you have ibnetdiscover file for this case? If not from where report
>> > is coming?
>> >
>> > Sasha
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>> >
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>
>