From: Bruce Walker <bruce@ka...> - 2001-10-11 19:14:26
> At 11:16 AM 10/9/01 -0700, Bruce Walker wrote:
> >... In addition I think there are VIA
> >and ServerNet2 implementation for Linux (for usermode communication,
> >not for ICS kernel-based communication). I can look into getting
> >the ICS-over-VIA design notes and could look into VIA and ServerNet2
> >code for Linux.
> >There are also some design documents on ICS that might be helpful, which
> >I will look into putting on the Web.
> >Briefly, as Brian pointed out, ICS interfaces not directly to a "driver"
> >but to a reliable messaging system. I think this is really good news,
> >because that is what VIA is (if you are careful). I hope that is also
> >what native Myrinet provides.
> Thanks, Bruce. Access to any design specs on ICS (or other SSI components
> for that matter) would be very helpful.
working on it
> If I follow the discussion, I believe we are talking about supporting a series
> of statically configured communication interfaces (one per customer). One
> design extension that I would like to see considered is the possibility of
> supporting multiple cluster communication interfaces concurrently. This would
> be very useful in large node-count cluster environments with various
> "zones". For HPC environments, there will be the need to configure high-speed
> communication paths between compute nodes. However, for cost (or other)
> it may not be prudent or possible to have all nodes in the cluster
> configured with
> identical interconnect hardware. This obviates the need for at least some
> type of
> bridging capability between "ICS zones".
> Is this something that has been provided or evaluated in previous NSC
> designs or
To some extent it was kept in mind during the initial ICS design but little
or nothing was implemented to support it. The two components to solving it would be:
a. allowing more than one transport to be configured into ICS at the same time;
b. having each node aware of which transport to use for any given other node.
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