[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.

--CQ

> -----Original Message-----
> From: Michael S. Tsirkin [mailto:mst at mellanox.co.il] 
> Sent: Monday, January 08, 2007 8:18 AM
> To: Tang, Changqing
> Cc: Or Gerlitz; openib-general at openib.org
> Subject: Re: using IB on a port without IPoIB running NIC
> 
> > 	Thank you for the information, I may change my mind to 
> require IPoIB 
> > to run newer version of HP-MPI on OFED 1.2, if I don't find 
> other way 
> > to easily establish IB connection dynamically between two process 
> > groups with dynamic size.
> 
> I'm not really sure what your needs are, but it's not like 
> this is completely impossible.
> 
> Some people use ad-hoc socket-based tricks establish IB 
> connections, and this will work for some topologies. You can 
> look at libibverbs/examples for an example of such implementation.
> 
> --
> MST
>