[ofa-general] Couple of questions about OpenSM

[Nicolas Morey-Chaisemartin]

Nicolas Morey-Chaisemartin a écrit :
> Sasha Khapyorsky a écrit :
>> On 17:03 Fri 20 Mar     , Nicolas Morey-Chaisemartin wrote:
>>> Good. There should be one table for each switch and each of them as one entry per (port/lid) couple no?
>> One minhops table per switch which consists hops per port arrays for
>> *only* switches' lids (CA and router lids entries are never used).
>>
> 
> It seems to me that all the entries (wether it is CA, Switch, Router, etc..) are used in the Ftree algorithm.
> The only tests done is wether this is a reald LID or not.
> 
> If I'm right, first test would be not to set hops if target lid is not a a switch which would already gain a some time (and memory).
> 
> Nicolas

Wait, what I'm saying is stupid. Fat-Tree needs the hops table to be set even for CA lics to detect if we are coming from a shorter path or not...
What we don't need however is to have it set for each port the remote portgroup, but just a global switch value.

Nicolas