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#1 2007-03-26 8:29 pm
- Nefarious
- Folding@Home
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- Registered: 2002-09-30
- Posts: 6956
Folding on Windows: the ATI GPU client
Now this one is said to open the blast doors.
http://folding.stanford.edu/FAQ-ATI.html
Now in 2006, we are looking forward to another major advance in capabilities. This advance utilizes the new, high performance Graphics Processing Units (GPUs) from ATI to achieve performance previously only possible on supercomputers. With this new technology (as well as the new Cell processor in Sony’s PlayStation 3), we will soon be able to attain performance on the 100 gigaflop scale per computer. With this new software and hardware, we will be able to push Folding@Home a major step forward.
GPU and OS support
Which cards are supported?
We now support serveral classes of GPU boards, including X1600, X1800, and X1900 class GPU's from ATI. At the launch, we supported X1900 cards only. X1800 cards do not provide the performance seen in X1900's and so we strongly recommend X1900 class cards (although we now officially support X1800). X1900 and X1800 cards are actually quite different -- they have different processors (R520, R530 vs. the R580 [in the X1900 series]). The R580 makes a huge difference in performance -- its 48 pixel shaders are key, as we use pixel shaders for our computations. Also note that the card should have more than 256MB (i.e. at least 512MB) of RAM, otherwise the GPU client will put a huge load on the client machine (although we do note that the 256MB X1950Pro using PCIe does work reasonably well).
What about video cards with other (non-ATI) chipsets?
The R580 (in the X1900XT, etc.) performs particularly well for molecular dynamics, due to its 48 pixel shaders. Currently, other cards (such as those from nVidia and other ATI cards) do not perform well enough for our calculations as they have fewer pixel shaders. Also, nVidia cards in general have some technical limitations beyond the number of pixel shaders which makes them perform poorly in our calculations.
Is the GPU client for Windows XP only, or has it been tested on other OS’s like Linux, Mac, and Vista?
We will launch with Windows XP (32 bit only) support only due to driver and compiler support issues.
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#2 2007-03-27 12:27 am
- kamizuno
- Poking you with a stick

- From: Smileytown
- Registered: 1999-07-13
- Posts: 1899
Re: Folding on Windows: the ATI GPU client
wow, that's really powerful stuff, I wonder if it will ever become available for Macs 
Last edited by kamizuno (2007-03-27 12:29 am)
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#3 2008-04-16 7:50 pm
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
Folding@home GPU2 Client Examined
...
Perhaps the most popular of these distributed computing initiatives is Folding@home. It studies the process of protein self-assembly, or "folding," a process which happens on an extremely short time scale. This sort of molecular simulation is computationally intensive, but it's important to understanding the fundamentals of many diseases.
Protein mis-folding is thought to be responsible for Alzheimer's, Mad Cow disease, ALS, and Parkinson's disease. Understanding how proteins fold and mis-fold can go a long way toward helping us find a cure, and of course also helps us understand more about how biology works. You can read more about it at Stanford's site.
A couple years ago, the FAH team started to beef up their computational power by developing new computing cores for streaming processors, including the PlayStation 3's Cell processor and graphics processors. The original GPU core worked only with ATI's Radeon X1900 class of GPUs, and interfaced with them through DirectX. This had limitations, but performance was still quite high.
Just last week, after a lot of waiting, Stanford finally released a beta of the "GPU2" client. This new client supports all Radeon HD 2400 and above cards, up to the Radeon HD 3870 X2. What's more, DirectX is now bypassed, and the code interfaces to the card through ATI's Compute Abstraction Layer (CAL). This should improve performance, compatibility, and enable FAH to support new cards more quickly.
Today we'll examine this new client, and ask Dr. Vijay Pande, the Director of the Folding@home project, a few questions about it.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#4 2008-04-20 6:08 pm
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
I'm a bit surprised to not see even one comment on this. GPU2 will be available via Boot Camp if not otherwise, using the ATi API opens the door to clients on other OSes, and it runs on anything from last Summer's 2400XT on up. Also
Dr. Vijay Pande was kind enough to answer a few of our questions about this new client and the Folding@home project. Dr. Pande is a Chemistry professor at Stanford and a Structural Biology professor at Stanford Medical School, and is the Director of the Folding@home project.
...
ET: Finally, with all the flavors of clients out there, if you personally could only run one of them yourself, knowing all the differences in performance and the types of calculations going on, which would you run?
Dr. Pande: That's a tough question, like asking which of your children you love best. With that said, a few months ago I'd say SMP (and that's what my laptop runs). In a few months, I bet it will be GPU2 (we're in a weird middle phase right now). Although, at home I run the PS3 client so my kids can see what proteins are and FAH can get some powerful processing power.
Link, page 3.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#5 2008-06-13 4:30 am
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
NVidia is apparently going to get one (an F@H client) also with their next Windows driver rev, but it may well be only for their next-gen cards, which don't look all that great. They're rumored to be rushing the die-shrink rev of the chip[s], which would let revised follow-ons supercede those in short order. It's happened before.
Good news, I guess, is that there's progress on the NV front.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#6 2008-06-13 6:35 pm
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
You now kan haz a decently-priced hot-rock at this kind of thing that also excels at things like Core Image. $219 USD.
CORE IMAGE SAVIOR:
Radeon HD 3870 Mac & PC Edition
A collective howl went up in the Mac Pro User community when the optional GeForce 8800 GT performed Core Image intensive tasks slower than the stock Radeon HD 2600 XT. "I paid $300 to go slower?" The release of Mac OS X 10.5.3 did improve the GeForce 8800's performance but only to bring it up even to the Core Image performance of the Radeon 2600.
But on June 12th, ATI announced their Core Image "savior": The Radeon HD 3870 Mac & PC Edition. It is compatible with ALL models of Mac Pro and costs only $219. In this initial report, we demonstrate the Core Image performance compared to the alternatives on both the "Harpertown" and "Clovertown" versions of the Mac Pro.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#7 2008-10-14 12:54 pm
Re: Folding on Windows: the ATI GPU client
Just thought I'd share.
I had a chance to try out the new 6.2 GPU client with my shiny new (and gargantuan) GeForce GTX 260 this weekend, and all I have to say is DAMN! It out performs either of my Quad CPU machines by a margin of about 4 to 1. The Folding Client crashes badly at about 56% complete when I tried using it on my 8600 GT, but it too (when working) is faster than an Intel Quad @3Ghz.
The GTX 260 takes on average 58 minutes to punch out a WU worth 480 points, all I have to to is get once for each PC machine now.
Any word on an OS X client of this nature yet?
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#8 2008-10-14 8:21 pm
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
I haven't heard any, but there is a CUDA dev kit for OSX. That's promising.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#9 2008-10-19 6:15 pm
- Nefarious
- Folding@Home
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- Registered: 2002-09-30
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Re: Folding on Windows: the ATI GPU client
Onanum is definitely cranking. At the moment, Onanum is within a hair of besting Artemis. Given that Otsep is on a steep decline, this could mean that Onanum would be the daily champ ? ! ? ! ?



Onanum's current numbers appear to be 10,500 per day : http://folding.extremeoverclocking.com/ … p;u=274569
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#10 2008-10-19 8:22 pm
- kamizuno
- Poking you with a stick

- From: Smileytown
- Registered: 1999-07-13
- Posts: 1899
Re: Folding on Windows: the ATI GPU client
Nefarious wrote:
Onanum is definitely cranking. At the moment, Onanum is within a hair of besting Artemis. Given that Otsep is on a steep decline, this could mean that Onanum would be the daily champ ? ! ? ! ?
Onanum's current numbers appear to be 10,500 per day : http://folding.extremeoverclocking.com/ … p;u=274569
Otsep is on the decline? the new guy at his old job must be killing off the clients, too bad 
Last edited by kamizuno (2008-10-19 8:23 pm)
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#11 2008-10-26 10:51 am
- otsep
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- From: Virginia
- Registered: 2007-09-06
- Posts: 87
Re: Folding on Windows: the ATI GPU client
kamizuno wrote:
Otsep is on the decline? the new guy at his old job must be killing off the clients, too bad
Yeah... Not cool at all.
Where's his scientific spirit?!?
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#12 2008-10-28 10:12 am
Re: Folding on Windows: the ATI GPU client
There seems to be a shortage of work units as my machines are sitting idle for a several hours at a time, this started about a week ago. Anyone else running the Windoze GPU client seeing this?
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#13 2008-10-28 10:37 am
- Nefarious
- Folding@Home
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- Registered: 2002-09-30
- Posts: 6956
Re: Folding on Windows: the ATI GPU client
Crossposted http://foldingforum.org/viewtopic.php?f=52&t=6542
Yes, you are not the only person with a shortage. Your folding install is fine. Stanford is falling behind is all.
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#14 2008-11-21 11:37 pm
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
NV Folding Q&A@Bjorn3D. A lot of it is pure PR, but there are a few good bits of info, including this odd factoid:
Bjorn3D: It is somewhat of an odd curiosity, but Folders have long noticed that with Windows XP Folding@home requires 100% of a CPU core dedicated for driver overhead. When folding under Vista only a small fraction of a single CPU core is needed for the same driver overhead, yet both operating systems offer comparable folding performance. Can you shed any light on this?
Nvidia: Even though we made a huge splash and have been very impactful to performance, NVIDIA and our GPUs are still very new to Folding@home and we have a lot to learn. We’re constantly optimizing across both platforms, but we can’t say specifically yet how this issue will be addressed.
http://www.bjorn3d.com/read.php?cID=1416
This also merits a look, about the ATi side and Stream.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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#15 2008-12-28 2:14 am
- Bat
- Adult's Play
- Royal Wombat

- From: Björk, Björk
- Registered: 2001-05-14
- Posts: 24315
Re: Folding on Windows: the ATI GPU client
Onanum wrote:
..
Any word on an OS X client of this nature yet?
OpenCL 1.0 was recently ratified. If Snow Leopard does indeed come out earlier than expected, compliant drivers and an OSX client might not be too far behind. A bit more on that here.
If all economists were laid end to end, they would not reach a conclusion - George Bernard Shaw
"Fire up a colortini, sit back, relax, and watch the pictures, now, as they fly through the air."
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