Sorry Jeff... I am playing middle man with another engineer here for this
information...
The query does not have to be per QP, but it does need to be per IB HCA port to
IB HCA port communication path.
For example, if a node has 64 CPUs, it could do the query once per each other
node on behalf
When using routing algorithms such as lash, the SL used per end to end
connection will vary based on the route. lash uses multiple VLs to avoid
credit loops. As such the SL reported will vary based on fabric topology and
which pair of end nodes the path is being requested on behalf of.
Hmm. Perhaps I'm not grokking your answer -- did you answer my
question? I'm indirectly asking about scalability of the SM to have
hundreds/thousands of MPI processes simultaneously querying the SM.
On Jan 5, 2009, at 11:47 AM, John Russo wrote:
When using routing algorithms such as
Would all MPI processes need to query the SM for each path that they
want to use in a QP?
On Jan 5, 2009, at 11:31 AM, John Russo wrote:
Another suggestion for 1.5
Implementation of SA queries for Path Records (using IBTA 1.2.1
ServiceId field) in all OFED ULPs, especially for MPI
