Interconnect Diagrams

Jim Lux James.P.Lux at
Wed Feb 21 15:39:10 PST 2001

If it is that coarsely grained, why not just use  1 NIC in each machine
hooked up as a standard shared media Ethernet (i.e. using Coax T's)?  Or do
you need the network bandwidth from node to node, in which case multiple
NICs starts to make sense ( I assume NICs and cabling are free?).  Then,
you'd want to use one of the schemes used with 10BaseT hubs (as opposed to
switches) which is conceptually the same as a multidrop coax configuration.

As for DHCP.... It sounds like a nightmare to debug.. is there a good reason
not to use static IPs assigned in a regular pattern, making building the
routing tables somewhat easier?

-----Original Message-----
From: Nigel Weeks <nigel at>
To: Beowulf (E-mail) <beowulf at>
Date: Wednesday, February 21, 2001 2:59 PM
Subject: Interconnect Diagrams

>Hi fellow beowulfers,
>I'm setting up a toy beowulf, with 4 10base-2 (coax) nics in each box(IT
>I'm wondering if anyone has any ideas on how to arrange the mesh, so that
>each of the 32 machines can use DHCP from the one master...
>The task is super-coarse grained - massive povray jobs(1600x1200, one frame
>per box. (2 hours per work unit)
>Diagrams would be great, but I understand that network arrangements are
>difficult to draw.
>Thanks heaps!!
>Nigel Weeks
>DBA,R&D Prog,SysAdmin,TechSupp,BAppComp
>AIMS Independent Computer Professionals
>15 Wellington St. Launceston Tas 7250
>Ph. 61 3  6334 6664
>Fax. 61 3 6331 7032
>Email. nigel at
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