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[CW] Cray building $97 million supercomputer for U.S. - Page 2

post #11 of 19
Still not likely enough to brute force 10 character WPA passwords. Would probably take months for 9 characters.
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post #12 of 19
Quote:
Originally Posted by SgtSpike View Post
A low-end CPU/GPU combined on one chip? I'm still thinking...
Scale up, more powerful cpu + more powerful gpu, 28nm will be interesting. 8core bd with something like a 6870 gpu on the die. Or maybe they replace the fpu with a gpu , thats where this is really headed.



Quote:
Originally Posted by SgtSpike View Post
You can look at a GPU as a dumbed-down CPU with hundreds of cores. So it can't calculate as many different ways as a CPU can, but if you can write a program to calculate on it and utilize all of those cores (parallel processors) at the same time, it can be much, much faster than a CPU.
Just add the all in one chip concept.
post #13 of 19
Quote:
Originally Posted by SCollins View Post
Think long and Hard about how AMD's fusion concept can play out in the future.
I think AMD needs to think long and hard about releasing competitive products in a timely manner.
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post #14 of 19
Quote:
Originally Posted by SCollins View Post
Scale up, more powerful cpu + more powerful gpu, 28nm will be interesting. 8core bd with something like a 6870 gpu on the die. Or maybe they replace the fpu with a gpu , thats where this is really headed.

Delay after delay, with lackluster performance rivaling Two-Generation Old Intel Architecture??!?


Yeaaaah... I see exactly where you're coming from.
post #15 of 19
Long Term? Intel Amd
    
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post #16 of 19
Quote:
Originally Posted by DrCatHands View Post
Delay after delay, with lackluster performance rivaling Two-Generation Old Intel Architecture??!?


Yeaaaah... I see exactly where you're coming from.
bobcat and llano were introductory designs, to bring software to the platform.

The real stuff is gonna show up 2013ish. thats just my opinion, but watch that space.
post #17 of 19
Quote:
Originally Posted by Escatore View Post
Sounds neat - I like the idea of having the world's most powerful supercomputer in the U.S.

One thing that I don't understand though - why are GPUs being implemented in supercomputers? I would think that pure arithmetic logic, like that provided by a processor, would be of more use in a field like supercomputing than what a GPU brings to the table. What does a GPU do more efficiently than a processor? It says that they're removing one Opteron processor per node and replacing it with an nVidia GPU? How will that help computing?
Those Tesla GPUs are pretty much some ultra high performance CPUs with a PCIe interface instead of a socket. They also come with their own memory, etc. like a normal GPU but the GPU itself is more like a CPU. The CPU of the computer is only used to send and organize data that the tesla GPU will process.
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post #18 of 19
How many gpus? OVER 9000!!!!!!1!!!!!!!!!!!!!!1!!1!!!!!
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post #19 of 19
Quote:
Originally Posted by SCollins View Post
Scale up, more powerful cpu + more powerful gpu, 28nm will be interesting. 8core bd with something like a 6870 gpu on the die. Or maybe they replace the fpu with a gpu , thats where this is really headed.
And an 8-core processor with a 6870 GPU on the same die is possible... how again?

By the time that happens, a 6870 will be what a 2900 is today.

Seriously, a high end CPU + a high end GPU on the same chip is NOT going to happen. Cooling such a monster would probably be the biggest challenge. Heck, graphics cards are hard enough to cool without having a 125w CPU attached to them!
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