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back to article Facebook: No 'definite plans' to ARM data centers

Facebook's first custom-built data center – the Prineville, Oregon facility that it just "open sourced" – uses standard x86 chips from Intel and AMD. But there's little doubt the social networking giant is exploring the use of so-called massively multicore servers packed with hundreds of low-power ARM chips, or even silicon from …

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Amdahls law

In amongst the orgy of lets lets-see-how-many-cores-we-can-stuff-on-a-chip I wondered when *someone* would recall that.

Something to keep in mind.

Simple example. You have 48 cores on a chip.

Have you got 48 *address* buses to match them?

Interleave *48* address requests with *minimal* (I don't believe that many execution paths could interleave perfectly) gaps?

48 (or 96 or more) memory planes to match them?

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Joke

That explains it

You mean "what were they smoking when they designed that?"?

I was wondering what TFA meant by "new-age chip maker Tilera".

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