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How are HD7970's folding? - Page 6

post #51 of 58
Anybody else get driver crash on folding launch and figured out a solution to it? I'm running the latest version of v7 and have reinstalled drivers completely. I hate hurting my folding team, but my crap psu isn't gonna run the 6850 I was folding on and the 7970 at the same time, and I can't just shelf the almost a grand worth the display hardware I just got until I see a fix.
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post #52 of 58
Quote:
Originally Posted by matrix2000x2 View Post

Quote:
Originally Posted by axipher View Post

8500 PPD at 1125 MHz core.

That is rather horrible.

There was no proof - not even a screencap of the estimated PPD frown.gif
 
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post #53 of 58
Quote:
Originally Posted by u3b3rg33k View Post

Quote:
Originally Posted by matrix2000x2 View Post

Quote:
Originally Posted by axipher View Post

8500 PPD at 1125 MHz core.

That is rather horrible.

There was no proof - not even a screencap of the estimated PPD frown.gif

Here's the exact post here:

http://www.overclock.net/t/1197529/asus-7970-unboxing/0_50#post_16158617

PM him and ask for a screenshot, but 8500 PPD on a brand new architecture running an old core doesn't actually sound too far off to me. Even the 5XXX series which was out then the newest AMD GPU core came out do a better job then the 6XXX if I'm not mistaken.

Stanford now faces the problem that the best core for the AMD GPU's (the x16 cores) are still in "beta" and even they don't take advantage of the newest cards so the likelihood of Stanford releasing new core anytime soon for the 6XXX series let alone the 7XXX is pretty low.

If I'm wrong or anyone has other info, feel free to correct me.
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post #54 of 58
Quote:
Originally Posted by axipher View Post

Here's the exact post here:
http://www.overclock.net/t/1197529/asus-7970-unboxing/0_50#post_16158617
PM him and ask for a screenshot, but 8500 PPD on a brand new architecture running an old core doesn't actually sound too far off to me. Even the 5XXX series which was out then the newest AMD GPU core came out do a better job then the 6XXX if I'm not mistaken.
Stanford now faces the problem that the best core for the AMD GPU's (the x16 cores) are still in "beta" and even they don't take advantage of the newest cards so the likelihood of Stanford releasing new core anytime soon for the 6XXX series let alone the 7XXX is pretty low.
If I'm wrong or anyone has other info, feel free to correct me.

I recently started getting only 11293s. When I started it was the 11294s. Stanford could, and I use this word loosely, be picking up the slack with ye olde core16 WU.
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post #55 of 58
Quote:
Originally Posted by axipher View Post

PM him and ask for a screenshot, but 8500 PPD on a brand new architecture running an old core doesn't actually sound too far off to me. Even the 5XXX series which was out then the newest AMD GPU core came out do a better job then the 6XXX if I'm not mistaken.
Stanford now faces the problem that the best core for the AMD GPU's (the x16 cores) are still in "beta" and even they don't take advantage of the newest cards so the likelihood of Stanford releasing new core anytime soon for the 6XXX series let alone the 7XXX is pretty low.
If I'm wrong or anyone has other info, feel free to correct me.

Keep in mind that while the "old core, new arch" argument has some validity, it's running on openCL, not Directcompute.

I was hoping for an x86 like IPC improvement, (GCN is, after all "designed with GPU computing in mind") like how a sandy bridge runs the same code that was optimized for a P4, better than the P4. Keeping in mind this is all still in beta...
Edited by u3b3rg33k - 1/16/12 at 9:40pm
 
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post #56 of 58
Quote:
Originally Posted by u3b3rg33k View Post

Quote:
Originally Posted by axipher View Post

PM him and ask for a screenshot, but 8500 PPD on a brand new architecture running an old core doesn't actually sound too far off to me. Even the 5XXX series which was out then the newest AMD GPU core came out do a better job then the 6XXX if I'm not mistaken.
Stanford now faces the problem that the best core for the AMD GPU's (the x16 cores) are still in "beta" and even they don't take advantage of the newest cards so the likelihood of Stanford releasing new core anytime soon for the 6XXX series let alone the 7XXX is pretty low.
If I'm wrong or anyone has other info, feel free to correct me.

Keep in mind that while the "old core, new arch" argument has some validity, it's running on openCL, not Directcompute.

I was hoping for an x86 like IPC improvement, (GCN is, after all "designed with GPU computing in mind") like how a sandy bridge runs the same code that was optimized for a P4, better than the P4. Keeping in mind this is all still in beta...

I don;t know much about OpenCL, but I'm wondering if the language includes features and algorithms for 5XXX, 6XXX, and 7XXX that are more efficient than the last, but the FAH cores are designed using features for only the 5XXX.

Maybe someone with OpenCL knowledge can chyme in here.

So GCN may be a new architecture, as some of 6XXX was, but new architecture won't necessarily mean better performance on the older features if the code running on them doesn't make use of them. Far all you know, the FAH cores could be using just the basics of OpenCL so they can run on AMD GPU's and aren't actually using any optimized features.
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post #57 of 58
Quote:
Originally Posted by axipher View Post

I don;t know much about OpenCL, but I'm wondering if the language includes features and algorithms for 5XXX, 6XXX, and 7XXX that are more efficient than the last, but the FAH cores are designed using features for only the 5XXX.
Maybe someone with OpenCL knowledge can chyme in here.
So GCN may be a new architecture, as some of 6XXX was, but new architecture won't necessarily mean better performance on the older features if the code running on them doesn't make use of them. Far all you know, the FAH cores could be using just the basics of OpenCL so they can run on AMD GPU's and aren't actually using any optimized features.

AFAIK, openCL is a compiler language, so you'd have to compile with optimizations for architecture x. It'd be interesting to see what kind of difference it makes on the 7970 if one were to run additional GPU clients on it - it's a trick you can use to get more PPD out of the amd cards, as apparently (may or may not be factual) the existing cores/projects don't use all the shaders/ROPs/magic-hampsters-on-wheels.
 
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post #58 of 58
Quote:
Originally Posted by u3b3rg33k View Post

Quote:
Originally Posted by axipher View Post

I don;t know much about OpenCL, but I'm wondering if the language includes features and algorithms for 5XXX, 6XXX, and 7XXX that are more efficient than the last, but the FAH cores are designed using features for only the 5XXX.
Maybe someone with OpenCL knowledge can chyme in here.
So GCN may be a new architecture, as some of 6XXX was, but new architecture won't necessarily mean better performance on the older features if the code running on them doesn't make use of them. Far all you know, the FAH cores could be using just the basics of OpenCL so they can run on AMD GPU's and aren't actually using any optimized features.

AFAIK, openCL is a compiler language, so you'd have to compile with optimizations for architecture x. It'd be interesting to see what kind of difference it makes on the 7970 if one were to run additional GPU clients on it - it's a trick you can use to get more PPD out of the amd cards, as apparently (may or may not be factual) the existing cores/projects don't use all the shaders/ROPs/magic-hampsters-on-wheels.

Thanks for the clarification, so my line of thought wasn't too far off then. I remember when I used to code OpenGL I had this problem, where certain features that were much faster would be left out simply because of compatibility with older hardware.
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