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[VRZ] NVIDIA's 18K+ Tesla K20 GPUs claims 'world's fastest open-science supercomputer' - Page 5

post #41 of 51
Quote:
Originally Posted by Capt View Post

Japan still has the fastest supercomputer. It's got around 700,000 cpu cores.
http://www.maximumpc.com/article/news/japans_k_supercomputer_still_fastest_world_top500_says

That article was written in 2011. Also, the article claims the Japanese Supercomputer broke the 10 petaflops/s barrier while the Titan comes in around 20 petaflops per second.
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post #42 of 51
Quote:
Originally Posted by xXSebaSXx View Post

From the source article.

I read the article and I know what CPUs they are using for the supercomputer. I was talking about the person I responded to who said "it has 700,000 cores and that it's faster" and that I though (before looking) he would have either an AMD X6 or AMD FX 8XXX.

I also made it pretty clear in the post you quoted, so I find it pretty funny you were in a way trying to say I didn't read.
    
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post #43 of 51
Quote:
Originally Posted by lordikon View Post

Yea, I guess I should've mentioned that the PS3 description is more of an abstraction. There's no way all of that hardware would run on a single system, of course. The abstraction being the PS3 SPE would be like a node in the cluster. I was trying to use an example of how these kinds of techniques are used in more common scenarios, like in a PS3. Different hardware, different architectures, similar concept of creating work, distributing it, getting it back, processing it, etc.

You're referring to task-parallelism. While there's lots of use for task parallelism in the real world, super-computers rarely run task-parallel programs for research.

Most of the programs on Jaguar/Titan run using data-parallelism. Processes run more-or-less independently from any "control." One program (with maybe some divergent paths) is simply started on each node and let run. Ideally they are designed to communicate with each other as little as possible.
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post #44 of 51
Quote:
Originally Posted by dharmaBum View Post

Quote:
Originally Posted by lordikon View Post

Yea, I guess I should've mentioned that the PS3 description is more of an abstraction. There's no way all of that hardware would run on a single system, of course. The abstraction being the PS3 SPE would be like a node in the cluster. I was trying to use an example of how these kinds of techniques are used in more common scenarios, like in a PS3. Different hardware, different architectures, similar concept of creating work, distributing it, getting it back, processing it, etc.

You're referring to task-parallelism. While there's lots of use for task parallelism in the real world, super-computers rarely run task-parallel programs for research.

Most of the programs on Jaguar/Titan run using data-parallelism. Processes run more-or-less independently from any "control." One program (with maybe some divergent paths) is simply started on each node and let run. Ideally they are designed to communicate with each other as little as possible.

Interesting. I've not done any large scale computing before, this is good info. Thanks.
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post #45 of 51
Quote:
Originally Posted by ForNever View Post

I wonder which gfx cards they use, 680's I'm guessing. Interesting article, was reading that this morning.

i think this wins most ignorant post of the day award lol.

why would anyone put a consumer grade gpu in that much less a ton of them. even if you didnt read or watch the article it would be safe to assume they would put the best workstation gpu or something totally custom in the titan lol

winksmiley02.gif
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post #46 of 51
I live within sight of one of the (many)gates of ORNL. I can literally look out my window and see the guard shack. I was disappointed their was no media coverage, entourage, hell even a parade smile.gif

Just another boring day in Oak Ridge frown.gif
post #47 of 51
Didn't know AMD has 16-core procs already, that was news to me.
Quote:
Originally Posted by ForNever View Post

I wonder which gfx cards they use, 680's I'm guessing. Interesting article, was reading that this morning.

Reading is at a all time high… rolleyes.gif
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post #48 of 51
I...holy crap, are those like 7-foot LCD screens or something? Just that feature probably cost tons.
post #49 of 51
Quote:
Originally Posted by Tippy View Post

I...holy crap, are those like 7-foot LCD screens or something? Just that feature probably cost tons.

Paint tongue.gif At first I thought they were screens as well.
    
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post #50 of 51
Quote:
Originally Posted by gEEKaDE View Post

Didn't know AMD has 16-core procs already, that was news to me.
Reading is at a all time high… rolleyes.gif

they been around for a lil while

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100008494%20600048486%20600252262&IsNodeId=1&name=16-Core

Wouldn't mind a couple in a dual socket workstation for some video rendering/converting tongue.gif
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