On Sun, Dec 03, 2006 at 07:03:33PM +0530, Chevchenkovic Chevchenkovic wrote:
> 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.