Fw: [ofa-general] Re: [query] Multi path discovery in openSM

[Keshetti Mahesh]

> OpenSM will always use min-hop paths (no matter what routing algorithm
> except maybe for LASH).
> If you use the default algorithms OpenSM will tend to spread traffic
> such that if you have used LMC=1 (2 LIDs per port)
> The two paths going to LID0 and LID1 will go through different systems
> or if not possible through different nodes.
>

Using the same example you have mentioned, what happens if LMC=1and
there are 2 paths (say P1, P2  and P2 is costlier than P1) between two
nodes (say N1, N2).
Will the openSM still configure two different paths for LID0 and LID1?

-Mahesh

> EZ