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[PCM] Intel Shipping First Xeon Phi Coprocessors - Page 3

post #21 of 67
Quote:
Originally Posted by DuckieHo View Post

No, it's not plug-and-plug.... HPC code will have to be re-optimized and recompiled.
Yes, it supports x86 but not all the additional instruction sets.
Read: http://www.brightsideofnews.com/news/2012/7/13/xeon-phi-lacks-binary-compatibility2c-breaks-amd64-conventions.aspx

You know I read that article and I'm even less sure about the point of this thing. But I'm still new at all this. Another question is warranted here:

What advantages does it have over it's competitors, aside from any of the raw statistics per $?

edit: cause I'm sitting here going, "oh it must parallelize better with Xeon than other cards" but then I figure that might just be an assumption.
Edited by un-midas touch - 11/12/12 at 8:52pm
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post #22 of 67
Quote:
Originally Posted by un-midas touch View Post

You know I read that article and I'm even less sure about the point of this thing. But I'm still new at all this. Another question is warranted here:
What advantages does it have over it's competitors, aside from any of the raw statistics per $?
edit: cause I'm sitting here going, "oh it must parallelize better with Xeon than other cards" but then I figure that might just be an assumption.

Xeon Phi should be easier to migrate existing x86 code to.
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post #23 of 67
Quote:
Originally Posted by DuckieHo View Post

Xeon Phi should be easier to migrate existing x86 code to.

Ok so I will try to make this my last question about this product, but for the sake of making sure I've gotten a grasp of it (I guess I'm just thrown through a loop seeing Intel make a discrete card but whatever), tell me if I'm right about what I say here:

There is a possibility of a consumer product with what we see here, but nothing is specifically pointing in that direction. ...?
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post #24 of 67
Quote:
Originally Posted by un-midas touch View Post

Quote:
Originally Posted by DuckieHo View Post

Xeon Phi should be easier to migrate existing x86 code to.

Ok so I will try to make this my last question about this product, but for the sake of making sure I've gotten a grasp of it (I guess I'm just thrown through a loop seeing Intel make a discrete card but whatever), tell me if I'm right about what I say here:

There is a possibility of a consumer product with what we see here, but nothing is specifically pointing in that direction. ...?

I'd say your assessment is correct. If Intel wanted, with proper driver support, this could turn into a discrete GPU, but one thing is Teraflops and another is FPS, and it's still to be seen how efficient and cost effective this would be as a consumer card, especially when put against Nvidia's and AMD's offerings.Larrabee, for example, was good as a GPU, but as it was, it wasn't very competitive against Nvidia's and AMD's latest offerings. As of right now they are targeting it at the professional market, which satisfies their margins pretty well, perhaps with enough developer support and a further optimized iteration, we might see Intel enter the discrete GPU market. In the meantime they can practice developing and releasing quality GPU drivers on a more regular schedule for Ivy Bridge and future Haswell in order to gain respect and reputation from gamers.
Edited by tpi2007 - 11/12/12 at 9:42pm
 
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post #25 of 67
Quote:
Originally Posted by tpi2007 View Post

I'd say your assessment is correct. If Intel wanted, with proper driver support, this could turn into a discrete GPU, but one thing is Teraflops and another is FPS, and it's still to be seen how efficient and cost effective this would be as a consumer card, especially when put against Nvidia's and AMD's offerings. As of right now they are targeting it at the professional market, which satisfies their margins pretty well, perhaps with enough developer support and a further optimized iteration, we might see Intel enter the discrete GPU market. In the meantime they can practice developing and releasing quality GPU drivers on a more regular schedule for Ivy Bridge and future Haswell in order to gain respect and reputation from gamers.

Ok. Happy to say, finally, that I am interested to see where this goes. Thanks again.
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post #26 of 67
Quote:
Originally Posted by un-midas touch View Post

Ok so I will try to make this my last question about this product, but for the sake of making sure I've gotten a grasp of it (I guess I'm just thrown through a loop seeing Intel make a discrete card but whatever), tell me if I'm right about what I say here:
There is a possibility of a consumer product with what we see here, but nothing is specifically pointing in that direction. ...?
No, Intel dropped attempting to enter the GPU market since the driver support is intensive and Larrabee was failing after 5+ years and billions spent.

Quote:
Originally Posted by tpi2007 View Post

I'd say your assessment is correct. If Intel wanted, with proper driver support, this could turn into a discrete GPU, but one thing is Teraflops and another is FPS, and it's still to be seen how efficient and cost effective this would be as a consumer card, especially when put against Nvidia's and AMD's offerings. As of right now they are targeting it at the professional market, which satisfies their margins pretty well, perhaps with enough developer support and a further optimized iteration, we might see Intel enter the discrete GPU market. In the meantime they can practice developing and releasing quality GPU drivers on a more regular schedule for Ivy Bridge and future Haswell in order to gain respect and reputation from gamers.

Driver support is everything in the GPU market though. Look at Intel's history with GPU drivers... (hint: It's NOT good.)
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post #27 of 67
Ha! Speak of the devil — I just asked where Intel's MIC was earlier today.

That memory bus is wide. Hello there, 512 bit bus. Running at 1375MHz too. Not bad at all for Intel's first foray into the market.

That die is a monster. Gotta be around 600mm², and on 22nm too. Wish I could look at the cores more closely — even the high rez photos are blurry.

It's also very different from the Aubrey Isle die, which is (apparently?) Knight's Corner's predecessor.

intel_aubrey_isle_coprocessor.jpg
Edited by Homeles - 11/12/12 at 10:15pm
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post #28 of 67
Quote:
Originally Posted by GrimNights View Post

Lets put this in here too
Source
Amazing! .17 TFlops for a mere 115 additional watts! Not real impressive when you realize it uses a full 50% more power for that gain.

Edit: Math failure.... only 140 additional watts (of TDP)
Edited by zooterboy - 11/12/12 at 11:00pm
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post #29 of 67
Quote:
Originally Posted by zooterboy View Post

Amazing! .17 TFlops for a mere 115 additional watts! Not real impressive when you realize it uses a full 50% more power for that gain.
It's a TDP. Pretty hard to draw conclusions from that.
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post #30 of 67
Quote:
Originally Posted by Homeles View Post

It's a TDP. Pretty hard to draw conclusions from that.

How so? Are you saying it won't use that many watts, so that won't matter to companies who have to pay the power bill?

If it's designed to dissipate that wattage, there's a reason for it.
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