Linked by David Adams on Thu 13th Oct 2011 17:33 UTC, submitted by jefro
Hardware, Embedded Systems According to physorg.com (via popsci), the Cray Inc. XT5-HE supercomputer (Jaguar) is getting updated. The Department of Energy's Jaguar computer will be renamed Titan. This reported $97 million upgrade will be using AMD CPUs and NVIDIA Tesla GPUs and is claimed to "be at least twice as fast and three times as energy efficient as today's fastest supercomputer, which is located in Japan." Good news for gamers.
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Only twice as fast?
by Kebabbert on Fri 14th Oct 2011 07:11 UTC
Kebabbert
Member since:
2007-07-27

I think this is non impressive, as the fastest super computer today, uses SPARC cpus. An GPU is many times faster than a CPU. When moving computations from CPU to GPU, you typically speed up more than 10x, often 50x. So when Jaguar moves computations from cpu to GPU and only get 2x.... I am not impressed of an GPU solution that is only twice as fast as a cpu solution.

Reply Score: 2

RE: Only twice as fast?
by Adurbe on Fri 14th Oct 2011 09:49 in reply to "Only twice as fast?"
Adurbe Member since:
2005-07-06

2x as fast means they can sell double the time on it.

I assume they did the maths and $97 million is worth the price for it! (and the ability to say its the fastest in the world really does bring in extra monies)

Reply Parent Score: 2

RE: Only twice as fast?
by vidarh on Fri 14th Oct 2011 11:35 in reply to "Only twice as fast?"
vidarh Member since:
2011-10-14

That's a ridiculous statement without looking at how many GPU's are being added vs. the number of CPU cores. Jaguar has more than 224,000 AMD cores as it is. How many GPUs vs. CPUs they will be adding depends on to what exactly their workloads demands.

Reply Parent Score: 1