[Beowulf] A suitable motherboard for newbie

[Jim Lux]

At 01:21 PM 11/27/2006, Vincent Diepeveen wrote:
>Rudollah,
>
>Why not go for quad core intel or dual core intel?
>
>About every test they are faster except when you need 1 terabyte of 
>RAM and fast latency to that RAM; some CFD type workload so to speak 
>that is latency based, in which case more cpu power doesn't help so 
>single core 3Ghz AMD's are fastest in that case, because they give a 
>faster latency to RAM.
>
>Basically you'll need 1 switch, 5 mainboards, 5 cpu's + coolers, 
>some RAM for each mainboard and 5 psu's.
>As it is low budget i assume you can make the case yourself from 
>some wood in a free weekend.

Case? what case?  Just stack the stuff on a shelf with double stick 
tape, arrange a fan to blow on it all, and you're done. <grin>

>
>You can boot over the network, though i never did do that myself.

I use net boot all the time.  Be forwarned, though, it can be real 
creepingly slow if you wind up with a lot of nodes all trying to hit 
the very same image on the server at the same time.  But, it is nice 
to not have to worry about version control on the nodes.

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James Lux, P.E.
Spacecraft Radio Frequency Subsystems Group
Flight Communications Systems Section
Jet Propulsion Laboratory, Mail Stop 161-213
4800 Oak Grove Drive
Pasadena CA 91109
tel: (818)354-2075
fax: (818)393-6875 
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