Hello *,
first I'd like to introduce myself. I'm Christian Kauhaus and I am
currently working at the Department of Computer Architecture at the
University of Jena (Germany). Our work group is digging into how to
connect several clusters on a campus.
As part of our research, we'd like to evaluate
On Fri, Mar 31, 2006 at 10:44:11AM +0200, Christian Kauhaus wrote:
> Hello *,
Hi.
> University of Jena (Germany). Our work group is digging into how to
> connect several clusters on a campus.
I think I'm also a member of this workgroup, though I am not
working at University of Jena, but studyi
On Mar 31, 2006, at 3:44 AM, Christian Kauhaus wrote:
first I'd like to introduce myself. I'm Christian Kauhaus and I am
currently working at the Department of Computer Architecture at the
University of Jena (Germany). Our work group is digging into how to
connect several clusters on a campus.
On Mar 31, 2006, at 8:40 AM, Adrian Knoth wrote:
On Fri, Mar 31, 2006 at 10:44:11AM +0200, Christian Kauhaus wrote:
Hello *,
Hi.
University of Jena (Germany). Our work group is digging into how to
connect several clusters on a campus.
I think I'm also a member of this workgroup, though I
> -Original Message-
> From: devel-boun...@open-mpi.org
> [mailto:devel-boun...@open-mpi.org] On Behalf Of Brian Barrett
> Sent: Friday, March 31, 2006 9:08 AM
> To: Open MPI Developers
> Subject: Re: [OMPI devel] IPv6 support in OpenMPI?
>
> From a practical standpoint, Open MPI has to
On Fri, Mar 31, 2006 at 09:07:39AM -0500, Brian Barrett wrote:
> > I have a first quick and dirty patch, replacing AF_INET by AF_INET6,
> > the sockaddr_in structs and so on.
> Is there a way to do this to better support both IPv4 and IPv6?
I think so, too. There are probably two different ways t
On Fri, Mar 31, 2006 at 09:36:31AM -0500, Jeff Squyres (jsquyres) wrote:
> I have no personal experience with IPv6, but one thought that strikes me
> is that the components might be able to figure out what to do by looking
> at/parsing either the hostnames or the results that come back from
> reso
On Fri, 31 Mar 2006, Brian Barrett wrote:
Are your hosts configured for both IPv4 and IPv6 traffic (or are they
IPv6 only)?
This is a big question and one that basically stopped me from adding
IPv6 support to LAM/MPI some 3 years ago. There are several things
that have to be considered:
-
On Mar 31, 2006, at 10:15 AM, Adrian Knoth wrote:
On Fri, Mar 31, 2006 at 09:36:31AM -0500, Jeff Squyres (jsquyres)
wrote:
I have no personal experience with IPv6, but one thought that
strikes me
is that the components might be able to figure out what to do by
looking
at/parsing either t
* Adrian Knoth wrote on Fri, Mar 31, 2006 at 04:59:42PM CEST:
>
> Perhaps it's a good idea to port any internal structure to
> IPv6, as it is able to represent the whole v4 namespace.
> One can always determine whether it is a real v6 or only
> a mapped v4 address (the common ::: prefix)
I'm
On Fri, Mar 31, 2006 at 05:21:42PM +0200, Ralf Wildenhues wrote:
> > Perhaps it's a good idea to port any internal structure to
> > IPv6, as it is able to represent the whole v4 namespace.
> > One can always determine whether it is a real v6 or only
> > a mapped v4 address (the common ::: pref
On Mar 31, 2006, at 10:33 AM, Adrian Knoth wrote:
On Fri, Mar 31, 2006 at 05:21:42PM +0200, Ralf Wildenhues wrote:
Perhaps it's a good idea to port any internal structure to
IPv6, as it is able to represent the whole v4 namespace.
One can always determine whether it is a real v6 or only
a mapp
* Adrian Knoth wrote on Fri, Mar 31, 2006 at 05:33:29PM CEST:
>
> If there is really a platform without sockaddr_in6
*snip*
> As far as I know: All BSDs have v6, Linux has, HPUX, AIX, Solaris,
> Windows (XP for sure, 2000 experimental, 9X/ME don't).
As determined by a cheap
find /usr/include -
Brian Barrett :
>Great! We currently only have IPv4 support, but IPv6 has always been
>on the wishlist. Most of the developers in the States don't have
This is very fine. :-)
>As far as I'm aware, there is no one working on IPv6 support for Open
>MPI. We would welcome anyone willing to w
Bogdan Costescu :
>- are all computers that should participate in a job configured
>similarly (only IPv6 or both IPv4 and IPv6) ? If not all are, then
>should some part of the computers communicate over one protocol and
>the rest over the other ? I think that this split coomunication would
Thi
Adrian Knoth :
>(I really prefer the v6-mapped-v4 solution with a single
> socket, thus eliminating this problem)
One little problem here is that it is possible to disable the
IPv6-mapped IPv4 addresses at least under Linux and some BSD variants.
For Linux, have a look at sys.net.ipv6.bindv6only.
Hi folks
Sorry to be coming late to the discussion - I'm on travel, so my
comments will likely have long time delays in them.
Only one contribution I would like to make. You are welcome to do
whatever you like (subject to the usual approval procedure) in the MPI
layer (the btl's for example)
On Fri, Mar 31, 2006 at 06:53:05PM +0200, Christian Kauhaus wrote:
> Adrian Knoth :
> >(I really prefer the v6-mapped-v4 solution with a single
> > socket, thus eliminating this problem)
>
> One little problem here is that it is possible to disable the
> IPv6-mapped IPv4 addresses at least under L
Ralph Castain :
>From the run-time perspective, whatever you do *must* support heterogeneous
>networks of computers that may and may not support IPv6, and may and may not
>support IPv6-mapped IPv4 addresses. In other words, the solution must support
>systems including computers that only know IPv4.
Actually, we have some sensor network folks that are interested in
using OpenRTE for their applications. Their platforms can be small
microprocessors, many with custom mini-operating systems. Almost none
support IPv6 nor have any knowledge of that protocol.
Ralph
Christian Kauhaus wrote:
On Fri, Mar 31, 2006 at 05:55:28PM +0200, Ralf Wildenhues wrote:
> Have not:
> HP-UX 11.00
HPUX 11iv2 has, for the early HPUX-11 versions there
is TOUR (Transport Optional Upgrade Release)
--
mail: a...@thur.de http://adi.thur.de PGP: v2-key via keyserver
Schlecht: Du kannst deine
I have a simple hello program where each child prints out the hostname
of the node it is running on. When I run this (on a bproc machine)
with -np 4 and no host file it launches one process per node on each
of the first 4 avaliable nodes. ie:
$ mpirun -np 4 ./mpi_hello
n1 hello
n3 hello
n2 hell
On Fri, Mar 31, 2006 at 11:06:55AM -0800, Brooks Davis wrote:
> > One little problem here is that it is possible to disable the
> > IPv6-mapped IPv4 addresses at least under Linux and some BSD variants.
> > For Linux, have a look at sys.net.ipv6.bindv6only. Some authors even
> More specifically,
On Sat, Apr 01, 2006 at 12:03:00AM +0200, Adrian Knoth wrote:
> On Fri, Mar 31, 2006 at 11:06:55AM -0800, Brooks Davis wrote:
>
> > > One little problem here is that it is possible to disable the
> > > IPv6-mapped IPv4 addresses at least under Linux and some BSD variants.
> > > For Linux, have a l
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