[ofa-general] Re: OpenSM and fat tree

[Sasha Khapyorsky]

On 11:37 Thu 15 May     , Chris Worley wrote:
> On Thu, May 15, 2008 at 11:14 AM, Ira Weiny <weiny2 at llnl.gov> wrote:
> > On Thu, 15 May 2008 10:26:37 -0600
> > "Chris Worley" <worleys at gmail.com> wrote:
> <snip>
> >> After an sm change (i.e. using the "-r" switch), nodes can't ping each
> >> other over IPoIB (other protocols also can't communicate).
> >
> > Is it absolutely necessary to run with the "-r" switch?  Here we have not
> > problems letting the SM attempt to use the same LID's for nodes.
> 
> yes, especially when chaging routing algorithms between the default
> and fat-tree.

As Yevgeny said it looks like an error (or at least unexpected behavior)
in fat-tree code. Could you send ibnetdiscover output and "old" guid2lid
file for us?

Sasha