OpenCL 1.0: The Road to Pervasive GPU Computing
by Derek Wilson on December 31, 2008 6:40 PM EST- Posted in
- GPUs
Final Words
Both AMD and NVIDIA have touted the fact that as soon as they are able they will support OpenCL. Even though the specification has been released, it is not yet possible to claim OpenCL support because we don't yet have any qualification tests. NVIDIA and AMD will need to be able to correctly compile and execute OpenCL code and programs, and match results for calculations within certain tolerances. OpenCL drivers should start trickling out some time next quarter. Until then, developers do have access to the specification and header files so they can start playing with it as well.
Unfortunately, even if we had final drivers today we would have to wait for a quite some time before we see the first real apps trickle out. We expect a higher volume of consumer level applications than we've seen with CUDA, as there is greater incentive to develop using OpenCL. The fact that the vast majority of modern graphics cards will support OpenCL and the fact that the vast majority of computers have modern graphics cards installed means that once OpenCL drivers arrive developers will instantly have standardized and easy access to hundreds of times more compute power for general purpose processing of data parallel algorithms.
While AMD and NVIDIA will likely cary on their efforts with ATI Stream and CUDA, unless and until there is a language that can target all GPUs we are more likely to see OpenCL thrive. No matter how much easier it might be to leave all the overhead and management to the system or the driver, putting the power in the hands of the developer will always enable higher performance and more innovative usage of the hardware.
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melgross - Thursday, January 1, 2009 - link
It's interesting that while ATI and Nvidia are heavily mentioned with their rapidly depreciating standards, Apple, which after all, developed OpenCL isn't mentioned even once, though it will also likely be the first to implement OpenCL in 10.6 later this year, possibly by March. Even their Logo isn't shown. Very strange!Wwhat - Monday, January 5, 2009 - link
By march they might (should) not be the first but graphicscard makers should have updated their drivers to support it already, after all they were well aware of OpenCL long before and already announced they would support it, and nvidia said that porting to it would be easy, plus both ATI and nvidia have no problem at all releasing unstable software/drivers, none at all, as we all experienced.Oh and nvidia had an OpenGL3 driver out in like 2 days after final specs and ATI a in a few weeks, so that makes you think they can put some steam behind their efforts if they want to.
dvinnen - Thursday, January 1, 2009 - link
The logo picture was taken from their siterdbrown - Friday, January 2, 2009 - link
On the the Khronos website right above the "Logos" Apple is the one who initially proposed the working group, Apple is also mentioned in the list of companies. They must not of posted Apple's logo knowing that everyone who knows anything about Open CL knows that it is Apple's technology, Heck Apple even owns the trademark rights.melgross - Thursday, January 1, 2009 - link
At least they should have been mentioned in the article.yyrkoon - Thursday, January 1, 2009 - link
And to say what ? That Apple feeling left out in the cold has made efforts to take the next obvious step and standardize GPU processing( very late in the game )? That is, assuming what you're saying is true.Gee, how very innovative of them.
hakime - Saturday, January 3, 2009 - link
Shut up you are trolling!! You don't know what you are talking about, period.The fact that there is not reference of Apple in the article is a serious drawback. Apple invented and designed Open CL as mush as SGI invented and designed Open GL, ignoring it is simply wrong. Credit to who is deserved for, and Apple deserved the credit for inventing Open CL, you have to admit it either you like Apple or not.
Apple has taken the industry of HPC upside down with Open CL, for the first time there is one single state of the art API and environment for high performance, multi-core and GPU programing, which is also OS and hardware independent. Open CL goes well beyond Direct X, as the latter is not only limited to what you can do for GPGPU, but also it is only designed for GPU (Microsoft is very late in the world of GPGPU, Apple has been targeting the GPU for high performance processing for a while now with Core Image and Core Video).
Open CL offers an unique interface for both CPU and GPU, which in other words means that it brings together different technologies like Open MP or CUDA, this is unique in the industry, Apple deserves the credit for having created this single interface.
Open CL is designed to target a large set of devices like CPU, GPU, Cell chips, DSPs, Direct X can't do that. Open CL targets small factor devices like the iPhone, Direct X does not and can not.
Not only the author of the article fails to recognize this unique aspect of Open CL, but he also fails to comment on the effort made by Apple in creating Open CL. Again you like Apple or not, that does not matter, give the credit to who it is deserved for and get the facts right.
Please correct the article and make it more interesting on what Open CL is really for, not the general bla, bla which is written.
Thanks.
ltcommanderdata - Thursday, January 1, 2009 - link
Which part isn't true? That Apple developed OpenCL and then submitted to Khronos? Since even Khronos admits that is true.http://www.khronos.org/news/press/releases/khronos...">http://www.khronos.org/news/press/relea...es_heter...
"Apple has proposed the Open Computing Language (OpenCL) specification to enable any application to tap into the vast gigaflops of GPU and CPU resources through an approachable C-based language."
Apple's Aaftab Munshi was also the chairman of the OpenCL working group.
And how is OpenCL late in the game? I'm pretty sure that DirectX 11 is the only standardized GPGPU implementation across multiple vendors, but it's still in beta. In comparison OpenCL has been ratified, in record time compared to OpenGL 3.0, probably due to Apple's pressure to get it ready for Snow Leopard. And nVidia has already released OpenCL drivers for Windows and Linux.
http://developer.nvidia.com/object/opengl_3_driver...">http://developer.nvidia.com/object/opengl_3_driver...
yyrkoon - Thursday, January 1, 2009 - link
Oh, and sorry, my original point was something like this. While the true innovative companies are squabbling about whose product is superior, Apple sneaks up behind them, and claims to have invented the internet. In other words, whether Apple participated or not, an open standard would have been made.melgross - Friday, January 2, 2009 - link
You're not very knowledgeable. You ARE very anti-Apple apparently.And why do gamers have to be the most beneficial parties? What's so great about gaming? Besides, OpenCL will benefit them, as well as parties that won't be benefitted by DirectX. Is that a bad thing? To you, it seems to be.
If MS had developed this, you would be jumping up and down, and claiming that it was the next step beyond the now old DirectX methodology, and far more useful.
Like it or not, this IS a major innovation, otherwise, so many companies of note wouldn't be signing on so quickly.
Whether Windows users benefit from this, or are left out of it is up to MS, who seems only interested in destroying standards that don't result in MS's increasing dominance. Too bad for them! That doesn't work too well anymore.
You know nothing about innovation at all. That's sad. Just go on being blinded by your prejudices, we all see it for what it is.