[openib-general] using IB on a port without IPoIB running NIC

[Tang, Changqing]

 > > What I need is that, without IPoIB, how do I wire IB connection ?
> > Currently with Verbs API, it is an alltoall QP number 
> exchange. I want 
> > to remove the alltoall QP number exchange in MPI dynamic process.
> 
> Well, does your MPI implementation currently use librdmacm?

No, we don't use both librdmacm and libibcm.

> If not, you don't currently have a dependency on IPoIB and 
> probably have no reason to introduce one.

As I said, the problem is the alltoall QP number exchange. I hope that a
process can only provide one piece of information(such as ip/port in
TCP/IP) so that all other processes have the same piece of info and can
make connection to it.


--CQ


> 
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> MST
>