<div><a href="http://www.theregister.co.uk/2009/02/03/llnl_buys_ibm_supers/">http://www.theregister.co.uk/2009/02/03/llnl_buys_ibm_supers/</a></div>
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<div>I make this 400 cores per 1U rack unit. How is the counting being done here?</div>
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<div>This article says 4096 cores per rack:</div>
<div><a href="http://www.engadget.com/2009/02/03/ibms-sequoia-20x-faster-than-the-worlds-fastest-supercomputer/">http://www.engadget.com/2009/02/03/ibms-sequoia-20x-faster-than-the-worlds-fastest-supercomputer/</a></div>

<div>That seems more rational - 93 racks adds up to 380928 cores</div>