[openib-general] [RFC][PATCH] rdma_cm: allow joins to return a unique address

[Andrew Friedley]

Or Gerlitz wrote:
> Sean,
> 
> I understand that your approach relies on the uniqueness of the MGID
> being generated. This means that to have different MPI jobs use
> different MGIDs , the MGIDs must be generated --always-- on the same
> NODE and be propagated to other nodes/ranks participating in that MPI
> job - correct?
> 
> Andrew - can you fulfil this demand? that is having the rank which
> generated MGIDs always run on the same node of the cluster???

Not across multiple MPI jobs, no -- MPI jobs have no awareness of each 
other whatsoever.

Andrew