On Sep 6, 2011, at 1:24 PM, Bhargava Ramu Kavati wrote:
> As per our last discussion, MPI_INIT(..) uses TCP socket to exchange its
> service-id/lid with other MPI processes. I assume this applies irrespective
> of underlying library used to establish connection i.e libibcm or librdmacm.
> Ple
24 Aug 2011 12:06:30 -0400
> From: Jeff Squyres
> Subject: Re: [OMPI devel] Regarding Connection establishment in
> OpenMPI (Jeff Squyres)
> To: Open MPI Developers
> Message-ID:
> Content-Type: text/plain; charset=us-ascii
>
> At the moment, our only "OO
to MPI_INIT here.
> What is the underlying transport mechanism does OpenMPI uses to exchange
> service-id/lid via MPI_INIT, is it TCP/IP socket ?
>
> Thanks & Regards,
> Ramu
>
> Message: 2
> Date: Mon, 22 Aug 2011 17:33:19 -0400
> From: Jeff Squyres
> Subject: R
> From: Jeff Squyres
> Subject: Re: [OMPI devel] Regarding Connection establishment in
>OpenMPI
> To: Open MPI Developers
> Message-ID: <2399c470-7f91-49d4-a463-a8994691a...@cisco.com>
> Content-Type: text/plain; charset=us-ascii
>
> On Aug 22, 2011, at 9:35 AM
On Aug 22, 2011, at 9:35 AM, Bhargava Ramu Kavati wrote:
> I am trying to explore the details of connection establishment in OpenMPI
> using libibcm/librdmacm.
Note that the IB community has given up on ibcm. Our support of it is
incomplete; I wouldn't look at it as an example.
> In the cod
Hi,
I am trying to explore the details of connection establishment in OpenMPI
using libibcm/librdmacm. In the code, I could not find how OpenMPI app is
getting service-id/lid of remote node to which it wants to connect. Also, I
did not see any query in the code related to service_record_get from
