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From: Chevchenkovic Chevchenkovic (chevchenkovic_at_[hidden])
Date: 2006-12-03 14:32:48


Is it possible to control the LID where the send and recvs are
posted.. on either ends?

On 12/3/06, Gleb Natapov <glebn_at_[hidden]> wrote:
> On Sun, Dec 03, 2006 at 07:03:33PM +0530, Chevchenkovic Chevchenkovic wrote:
> > Hi,
> > I had this query. I hope some expert replies to it.
> > I have 2 nodes connected point-to-point using infiniband cable. There
> > are multiple LIDs for each of the end node ports.
> > When I give an MPI_Send, Are the sends are posted on different LIDs
> > on each of the end nodes OR they are they posted on the same LID?
> > Awaiting your reply,
> It depend what version of Open MPI your are using. If you are using
> trunk or v1.2 beta then all available LIDs are used in RR fashion. The early
> versions don't support LMC.
>
> --
> Gleb.
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