> I started a 10 node cluster with Quadra 605 systems. The ultimate 
> goal is
> to use it to do bulk package builds for pkgsrc. Each machine takes 
> around 18 to 20 watts, and those are watts measured at 120 volts, so 
> the total power of a 10 node cluster is less than most Pentium 4 
> systems.
>
> I only have four of the nodes working, and I haven't started using 
> it for bulk package builds, but soon I hope to have half of them 
> running 1.6.2 and the other half running 2, doing bulk builds for 
> each. There will be a bit of work to do to get them to build in 
> concert, but the idea should be applicable to other uses.

Have you looked at distcc?
http://www.distcc.org

It mentions specifically how to use it with pgksrc, that might be the 
simple option?  You'd basically do a make package -J<number of 
machines> from the root of the pkgsrc tree.

Joshua Coombs