http://www.theregister.co.uk/2009/11/27/ibm_power7_hpc_server/
tout est la et ya de quoi baver
quelques infos en vrac tirées des 3 pages de l'article
Citation :
The Power7 chips are implemented in a 45 nanometer copper/SOI process and have 1.2 billion transistors with eight cores on a single die.
Citation :
At SC09, IBM gave out a lot more details on the four-chip multichip module (MCM) that it said it was cooking up for supercomputing customers
(c'est en fait les MCM que l'on va utiliser sur notre gamme de machines Power7)
Citation :
The picture shows the Power7 IH node MCM chip package, with the four eight-core Power7 chips. Next to it is the IH node hub/switch, which is implemented in a similar chip package.
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Both chip packages have the same pin count at 5,336 pins (92 pins by 58 pins) [...]
The package has 512 GB/sec of aggregate memory bandwidth and 192 GB/sec of I/O bandwidth.
IBM now confirms that for this Power7 IH MCM, clock speeds will range from 3.5GHz to 4GHz
Citation :
The Power7 IH node, as you can see in this picture, is not small. It is 39 inches wide by 6 feet deep, including space for cables. The IH node drawer is 2U high and it has room for eight of these Power7 IH MCMs, for a total of 256 cores.
The IH nodes are completely water-cooled, with water blocks on the Power7 MCM packages, on the 8 GB DDR3 memory modules IBM had specially designed for the box, and on the Power7 IH hub/switches, which were not given a proper name yet.
Citation :
The water cooling links into the nodes through the front of the chassis, which is to the right in this picture. The chassis weighs a little more than 300 pounds fully loaded. A dozen of these, plus up to 1PB of local storage, can be put into a specially designed rack. This rack delivers 98.3 teraflops of number-crunching power.
si après ca vous bavez c'est normal
un watercooling complet sur une machine de 42U ca laisse rêveur
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