SAN FRANCISCO--Sun Microsystems has been touting the efficiency of servers using its first-generation UltraSparc T1 "Niagara" processor, but it's promising greater gains with the chip's sequel.
The first Niagara consumes about 70 watts running flat out. Sun now thinks Niagara 2 will consume between 70 and 80 watts, John Fowler, executive vice president of systems, said in a meeting with reporters at Sun offices here Tuesday.
Although that power consumption is "just a teeny bit above Niagara 1," Fowler said, the newer chip absorbs several functions that today require separate electronics and also can handle 64 simultaneous instruction sequences, called threads--twice that of Niagara 1.
Niagara 2's built-in features include 10-gigabit-per-second networking, including full-speed encryption, PCI Express communications and four memory controllers. It's an example of the trend toward "system on a chip."
On the flip side, the chip requires FB-DIMM (fully buffered dual inline memory modules), a more power-hungry technology than the DDR2 (double data rate 2) memory used in today's Niagara servers. Memory, in fact, will determine whether a complete Niagara 2 system will consume more than a Niagara 1 system.
"Systems with larger memory will be above. With smaller memories, Niagara 2 systems will burn less," Fowler said.
Sun's priority on energy efficiency isn't unique. Among the other three major server companies, IBM and Hewlett-Packard have touted technology to monitor and throttle energy usage in data centers, while Dell introduced a power-efficient server line Monday.
The first Niagara chips don't handle mathematical operations using "floating-point" numbers well, with eight processing cores sharing one floating-point engine, but Niagara 2 "fixes that" with one floating-point unit per core, Fowler said.
"We will have pretty startling SPECfp numbers," he said, referring to a floating-point seed test. "There will be people who look at it for numerical computing. It will be quite exceptional in performance," he said, because it has eight floating-point units and high memory communication speeds.
Correction: This story incorrectly described the speed of Niagara 2's built-in networking. The chips support two direct network connections running at 10 gigabits per second.
Sun is adding 10Mb/s networking on the chip. Ok, so how does that help when you're dealing with 100Mb/s or 1Gb/s from the desktop or from the server in a rack?
10 Mb on the chip may be nice, but what does it really buy you? It sounds like they had some empty real estate and that they wanted to add a bonus... (The encryption on the chip, now thats a different story...)
It was typo, and it has 10 Gb/s network. For more detail... <a class="jive-link-external" href="http://www.opensparc.net/publications/presentations/fallmpf-06-niagara2-a-highly-threaded-server-on-a-chip.html" target="_newWindow">http://www.opensparc.net/publications/presentations/fallmpf-06-niagara2-a-highly-threaded-server-on-a-chip.html</a>
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Ok, so how does that help when you're dealing with 100Mb/s or 1Gb/s from the desktop or from the server in a rack?
10 Mb on the chip may be nice, but what does it really buy you? It sounds like they had some empty real estate and that they wanted to add a bonus...
(The encryption on the chip, now thats a different story...)
It was typo, and it has 10 Gb/s network.
For more detail...
<a class="jive-link-external" href="http://www.opensparc.net/publications/presentations/fallmpf-06-niagara2-a-highly-threaded-server-on-a-chip.html" target="_newWindow">http://www.opensparc.net/publications/presentations/fallmpf-06-niagara2-a-highly-threaded-server-on-a-chip.html</a>