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Re: Complex networking

On Thu, Mar 08, 2001 at 02:56:33PM -0500, Rob Latham wrote:
> Grendel (grendel@icantbelieveimdoingthis.com) said:
> > We have started with (count them) fourteen nodes. However, we have
> > plans to expand to something between 32 and 64 nodes. The initial idea
> > was to use the Flat neighborhood network so that we could have single-hop
> > connectivity between any two nodes. My impression now is that to do that
> > would require custom clustering that is outside the model for something like
> > scyld. I have now split the system into two parts. On one I've installed scyld
> > using exactly the networking they envision. 
> FNN is academicaly interesting, but a royal pain in the ass to set up.
> yeah, the web page will autogenerate your routing information, and if
> you have a very limited budget it can be a price/performance win, but
> i'd suggest buying a big-ass switch.  then you can spend your time
> tuning your code instead of fiddling with network topologies.
This is close to my current strategy. Assuming I get MPI working in the important codes,
I intend to build on the scyld side. However, there are currently important codes that
would do well run in a massively serial mode. For this reason, I'm keeping a small
portion of the network as full debain installations, albeit with some stripping
(no X, etc. ). This will also be run on a BAS. I'm thinking that I can channel bond
to get increased bandwidth (so I'll buy three BAS). 
> > The scyld system is now up and I'm starting to deal with the software issues.
> this is a great question ( getting FNN and scyld to work together) to
> ask the beowulf mailing list (beowulf@beowulf.org : www.beowulf.org
> for more info). however, since scyld is not (yet) debianised, i don't
> know how relevant this mailing list is.
> ==rob
> -- 
> Rob Latham: linux A-Team                          Bethlehem, PA USA
> EAE8 DE90 85BB 526F 3181                   1FCF 51C4 B6CB 08CC 0897
> --  
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