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#1 modi123_1  Icon User is offline

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ARM servers!

Posted 17 January 2013 - 09:12 AM

Yeah I know HP did something similar, but now Dell's throwing in the whole 64bit chip and really running a good marketing scheme on this.

15w.. fits into existing racks.. the whole "throw smaller rocks at processing and save resources versus throwing bigger stones"... This might be amusing enough to get a few home servers to power down a bit and save some energy bills!

Any thoughts? Is this the new way of approaching things? Smaller, ubiquitous cellphone chips versus specialized server chips?

Info on Copper

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As you can see, the heart of the Armada XP 78460 is a system crossbar interconnect that links all of the elements of the SoC together – components that might otherwise be on a server motherboard separated from the CPUs and glued together by a chipset. Each Sheeva CPU has a floating point unit and is linked over a coherency fabric to a 2MB on-die L2 cache. The memory controller supports up to 8GB of DDR3 main memory with ECC scrubbing and running at up to 1.6GHz. There are four PCI-Express 2.0 controllers on the chip, as well as controllers to drive two SATA peripheral ports and four Gigabit Ethernet ports. There is also a 4Gb/sec packet processor that could come in very handy, as well as a security engine for encrypting and decrypting data and a controller to link to three USB 3.0 ports. That is a lot of stuff to cram into a 15 watt thermal envelope – hence the excitement about ARM servers.
...
A single C5000 chassis can hold 48 ARM processors, for a total of 192 cores. That works out to 2,688 cores in a rack if you fill it top to bottom with C5000s – or 2,496 cores if you leave 3U open for top-of-rack Ethernet switches.

http://www.theregist...per_arm_server/

Rather than running software applications on traditional “brawny core” server chips, the idea is to save power by breaking software into tiny pieces and spreading it across a much larger number of “wimpy cores” — a “core” being a single microprocessor. According to Dell, its Copper serves runs at 15 watts, which means it consumes about a quarter of the power of a comparable server equipped with Intel’s “brawny” server chip: the Xeon.

http://www.wired.com...05/dell-copper/

Copper sled:

Posted Image


http://en.community....on-the-way.aspx

http://arstechnica.c...it-iron-server/

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Replies To: ARM servers!

#2 calvinthedestroyer  Icon User is offline

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Re: ARM servers!

Posted 21 January 2013 - 02:02 AM

Wow, saw something similar at ohio linus fest last year. Very impressive. They say that the cores run at 1.1GHz or 1.4GHz

lets see, full size rack = 42U:
-4U for UPC unit
-3U for Ethernet switches

that leaves us room for 11 coppers at 72 cores each = 792 cores.
At 1.4Ghz ea that comes to 1,108Ghz !

Wow, saw something similar at ohio linus fest last year. Very impressive. They say that the cores run at 1.1GHz or 1.4GHz

lets see, full size rack = 42U:
-4U for UPC unit
-3U for Ethernet switches

that leaves us room for 11 coppers at 72 cores each = 792 cores.
At 1.4Ghz ea that comes to 1,108Ghz !
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#3 modi123_1  Icon User is offline

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Re: ARM servers!

Posted 21 January 2013 - 08:18 AM

Yeah.. and their 'iron' is 1.6ghz with a total possible 2,496 cores! Heh.. this could make home servers more.. interesting.
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