GDC 14: EGL 1.5 Specification Released by Khronos

Subject: General Tech, Graphics Cards, Mobile, Shows and Expos | March 19, 2014 - 09:02 AM |
Tagged: OpenGL ES, opengl, opencl, gdc 14, GDC, EGL

The Khronos Group has also released their ratified specification for EGL 1.5. This API is at the center of data and event management between other Khronos APIs. This version increases security, interoperability between APIs, and support for many operating systems, including Android and 64-bit Linux.

khronos-EGL_500_123_75.png

The headline on the list of changes is the move that EGLImage objects makes, from the realm of extension into EGL 1.5's core functionality, giving developers a reliable method of transferring textures and renderbuffers between graphics contexts and APIs. Second on the list is the increased security around creating a graphics context, primarily designed for WebGL applications which any arbitrary website can become. Further down the list is the EGLSync object which allows further partnership between OpenGL (and OpenGL ES) and OpenCL. The GPU may not need CPU involvement when scheduling between tasks on both APIs.

During the call, the representative also wanted to mention that developers have asked them to bring EGL back to Windows. While it has not happened yet, they have announced that it is a current target.

The EGL 1.5 spec is available at the Khronos website.

Source: Khronos

GDC 14: SYCL 1.2 Provisional Spec Released by Khronos

Subject: General Tech, Graphics Cards, Mobile, Shows and Expos | March 19, 2014 - 09:01 AM |
Tagged: SYCL, opencl, gdc 14, GDC

To gather community feedback, the provisional specification for SYCL 1.2 has been released by The Khronos Group. SYCL extends itself upon OpenCL with the C++11 standard. This technology is built on another Khronos platform, SPIR, which allows the OpenCL C programming language to be mapped onto LLVM, with its hundreds of compatible languages (and Khronos is careful to note that they intend for anyone to make their own compatible alternative langauge).

khronos-SYCL_Color_Mar14_154_75.png

In short, SPIR allows many languages which can compile into LLVM to take advantage of OpenCL. SYCL is the specification for creating C++11 libraries and compilers through SPIR.

As stated earlier, Khronos wants anyone to make their own compatible language:

While SYCL is one possible solution for developers, the OpenCL group encourages innovation in programming models for heterogeneous systems, either by building on top of the SPIR™ low-level intermediate representation, leveraging C++ programming techniques through SYCL, using the open source CLU libraries for prototyping, or by developing their own techniques.

SYCL 1.2 supports OpenCL 1.2 and they intend to develop it alongside OpenCL. Future releases are expected to support the latest OpenCL 2.0 specification and keep up with future developments.

The SYCL 1.2 provisional spec is available at the Khronos website.

Source: Khronos

NitroWare Tests AMD's Photoshop OpenCL Claims

Subject: General Tech, Graphics Cards, Processors | February 5, 2014 - 02:08 AM |
Tagged: photoshop, opencl, Adobe

Adobe has recently enhanced Photoshop CC to accelerate certain filters via OpenCL. AMD contacted NitroWare with this information and claims of 11-fold performance increases with "Smart Sharpen" on Kaveri, specifically. The computer hardware site decided to test these claims on a Radeon HD 7850 using the test metrics that AMD provided them.

Sure enough, he noticed a 16-fold gain in performance. Without OpenCL, the filter's loading bar was on screen for over ten seconds; with it enabled, there was no bar.

Dominic from NitroWare is careful to note that an HD 7850 is significantly higher performance than an APU (barring some weird scenario involving memory transfers or something). This might mark the beginning of Adobe's road to sensible heterogeneous computing outside of video transcoding. Of course, this will also be exciting for AMD. While they cannot keep up with Intel, thread per thread, they are still a heavyweight in terms of total performance. With Photoshop, people might actually notice it.

Author:
Manufacturer: NVIDIA

NVIDIA Finally Gets Serious with Tegra

Tegra has had an interesting run of things.  The original Tegra 1 was utilized only by Microsoft with Zune.  Tegra 2 had a better adoption, but did not produce the design wins to propel NVIDIA to a leadership position in cell phones and tablets.  Tegra 3 found a spot in Microsoft’s Surface, but that has turned out to be a far more bitter experience than expected.  Tegra 4 so far has been integrated into a handful of products and is being featured in NVIDIA’s upcoming Shield product.  It also hit some production snags that made it later to market than expected.

I think the primary issue with the first three generations of products is pretty simple.  There was a distinct lack of differentiation from the other ARM based products around.  Yes, NVIDIA brought their graphics prowess to the market, but never in a form that distanced itself adequately from the competition.  Tegra 2 boasted GeForce based graphics, but we did not find out until later that it was comprised of basically four pixel shaders and four vertex shaders that had more in common with the GeForce 7800/7900 series than it did with any of the modern unified architectures of the time.  Tegra 3 boasted a big graphical boost, but it was in the form of doubling the pixel shader units and leaving the vertex units alone.

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While NVIDIA had very strong developer relations and a leg up on the competition in terms of software support, it was never enough to propel Tegra beyond a handful of devices.  NVIDIA is trying to rectify that with Tegra 4 and the 72 shader units that it contains (still divided between pixel and vertex units).  Tegra 4 is not perfect in that it is late to market and the GPU is not OpenGL ES 3.0 compliant.  ARM, Imagination Technologies, and Qualcomm are offering new graphics processing units that are not only OpenGL ES 3.0 compliant, but also offer OpenCL 1.1 support.  Tegra 4 does not support OpenCL.  In fact, it does not support NVIDIA’s in-house CUDA.  Ouch.

Jumping into a new market is not an easy thing, and invariably mistakes will be made.  NVIDIA worked hard to make a solid foundation with their products, and certainly they had to learn to walk before they could run.  Unfortunately, running effectively entails having design wins due to outstanding features, performance, and power consumption.  NVIDIA was really only average in all of those areas.  NVIDIA is hoping to change that.  Their first salvo into offering a product that offers features and support that is a step above the competition is what we are talking about today.

Continue reading our article on the NVIDIA Kepler architecture making its way to mobile markets and Tegra!

Podcast #256 - Mobile Frame Rating, NVIDIA licensing Kepler, Xbox One DRM and more!

Subject: General Tech | June 20, 2013 - 02:03 PM |
Tagged: video, podcast, 780m, frame rating, nvidia, kepler, xbox one, Adobe, CC, opencl

PC Perspective Podcast #256 - 06/20/2013

Join us this week as we discuss Mobile Frame Rating, NVIDIA licensing Kepler, Xbox One DRM and more!

You can subscribe to us through iTunes and you can still access it directly through the RSS page HERE.

The URL for the podcast is: http://pcper.com/podcast - Share with your friends!

  • iTunes - Subscribe to the podcast directly through the iTunes Store
  • RSS - Subscribe through your regular RSS reader
  • MP3 - Direct download link to the MP3 file

Hosts: Ryan Shrout, Josh Walrath, Allyn Malventano and Morry Teitelman

Program length: 1:33:43

  1. Week in Review:
  2. News items of interest:
    1. 0:43:30 Ryan's summary of E3
      1. Oculus 1080p, Razer Blade, Monoprice, SHIELD
  3. 1:22:00 Hardware/Software Picks of the Week:
    1. Allyn: Swiss-Tech Keychain Tools
  4. 1-888-38-PCPER or podcast@pcper.com
  5. Closing/outro

Manufacturer: Adobe

OpenCL Support in a Meaningful Way

Adobe had OpenCL support since last year. You would never benefit from its inclusion unless you ran one of two AMD mobility chips under Mac OSX Lion, but it was there. Creative Cloud, predictably, furthers this trend with additional GPGPU support for applications like Photoshop and Premiere Pro.

This leads to some interesting points:

  • How OpenCL is changing the landscape between Intel and AMD
  • What GPU support is curiously absent from Adobe CC for one reason or another
  • Which GPUs are supported despite not... existing, officially.

adobe-cs-products.jpg

This should be very big news for our readers who do production work whether professional or for a hobby. If not, how about a little information about certain GPUs that are designed to compete with the GeForce 700-series?

Read on for our thoughts, after the break.

Podcast #246 - ASUS P8Z77-I Deluxe Mini-ITX motherboard, more Frame Rating, DirectX 12 and more!

Subject: General Tech | April 11, 2013 - 01:26 PM |
Tagged: video, xeon, thunderbolt, roccat, quadro, premiere, podcast, opencl, nerdytec, Ivy Bridge-E, haswell, frame rating, firepro, falcon ridge, DirectX 12, couchmaster, ASUS P8Z77-I Deluxe, amd

PC Perspective Podcast #246- 04/11/2013

Join us this week as we discuss the ASUS P8Z77-I Deluxe Mini-ITX motherboard, more Frame Rating, DirectX 12 and more!

You can subscribe to us through iTunes and you can still access it directly through the RSS page HERE.

The URL for the podcast is: http://pcper.com/podcast - Share with your friends!

  • iTunes - Subscribe to the podcast directly through the iTunes Store
  • RSS - Subscribe through your regular RSS reader
  • MP3 - Direct download link to the MP3 file

Hosts: Ryan Shrout, Jeremy Hellstrom, Josh Walrath, and Allyn Malventano

This Podcast is brought to you by MSI!

Program length: 1:01:46

  1. Winner last week? Mike McLaughlin!! Congrats!
  2. Week in Review:
  3. 0:24:00 NerdyTec COUCHMASTER
  4. News items of interest:
  5. 0:47:00 Hardware/Software Picks of the Week:
    1. Allyn: Ultra Brush dust remover
  6. 1-888-38-PCPER or podcast@pcper.com
  7. Closing/outro

 

AMD and Adobe Show OpenCL Support for next version of Adobe Premiere Pro

Subject: General Tech, Graphics Cards | April 5, 2013 - 11:48 AM |
Tagged: premiere pro, opencl, firepro, amd, Adobe

As we prepare for the NAB show (National Association of Broadcasters) this week, AMD and Adobe have released a fairly substantial news release concerning the future of Premiere Pro, Adobe's flagship professional video editing suite. 

Earlier today Adobe revealed some of its next generation professional video and audio products, including the next version of Adobe® Premiere Pro. Basically Adobe is giving users a sneak peek at the new features coming to the next versions of its software. And we’ve decided to give you a sneak peek too, providing a look at how the next version of Premiere Pro performs when accelerated by AMD FirePro™ 3D workstation graphics and OpenCL™ versus Nvidia Quadro workstation graphics and CUDA.

This will be the first time that OpenCL is used as the primary rendering engine for Premiere and is something that AMD has been hoping to see for many years.  Previous versions of the software integrated support for NVIDIA's CUDA GPGPU programming models and the revolution of the Mercury Playback Engine was truly industry changing for video production.  However, because it was using CUDA, AMD users were left out of these performance improvements in favor of the proprietary NVIDIA software solution.

Adobe's next version of Premiere Pro (though we aren't told when that will be released) switches from CUDA to OpenCL and the performance of the AMD GCN architecture is being shown off by AMD today. 

Adobe-Premiere-OpenCL-vs-Cuda.png

Using 4K TIFF 24-bit sequence content, Microsoft Windows® 7 64-bit, Intel Xeon E5530 @ 2.40 GHZ and 12GB system memory, AMD compared several FirePro graphics cards (using OpenCL) against NVIDIA Quadro options (using CUDA).  Idealy we would like to see some OpenCL NVIDIA benchmarks as well, but I assume we'll have to wait to test that here at PC Perspective.

Adobe-Premiere-GPU-Utilization.png

AMD also claims that by utilizing OpenCL rather than CUDA, the AMD FirePro GPUs are running at a lower utilization, opening up more graphics processing power for other applications and development work.

While this performance testing is conducted on a pre-release version of the next Adobe Premiere Pro, we’re really pleased with the results. As with all of the professional applications we support, we’ll continue to make driver optimizations for Adobe Premiere Pro that can only help to improve the overall user experience and application performance. So if you’re considering a GPU upgrade as part of your transition to the next version of Adobe Premiere Pro, definitely consider taking a look at AMD FirePro™ 3D workstation graphics cards.

You can continue on to read the full press release from AMD and Adobe on the collaboration or check out the complete blog post posted on AMD.com.

Source: AMD

Phoronix on OpenCL Driver Optimization, NVIDIA vs. AMD

Subject: Editorial, General Tech, Graphics Cards | December 28, 2012 - 02:43 AM |
Tagged: opencl, nvidia, amd

The GPU is slowly becoming the parallel processing complement to your branching logic-adept CPU. Developers have been slow to adopt this new technology but that does not hinder the hardware manufacturers from putting on a kettle of tea for when guests arrive.

While the transition to GPGPU is slower than I am sure many would like, developers are rarely quick on the uptake of new technologies. The Xbox 360 was one of the first platforms where unified shaders became mandatory and early developers avoided them by offloading vertex code to the CPU. On that note: how much software still gets released without multicore support?

7-TuxGpu.png

Phoronix, practically the arbiter of all Linux news, decided to put several GPU drivers and their manufacturers to the test. AMD was up first and their results showed a pretty sizeable jump in performance at around October of this year through most of their tests. The article on NVIDIA arrived two days later and saw performance trended basically nowhere since February with the 295.20 release.

A key piece of information is that both benchmarks were performed with last generation GPUs: the GTX 460 on the NVIDIA side, with the 6950 holding AMD’s flag. You might note that 295.20 was the last tested driver to be released prior to the launch of Kepler.

These results seem to suggest that upon the launch of Kepler, NVIDIA did practically zero optimizations to their older "Fermi" architecture at least as far as these Linux OpenCL benchmarks are concerned. On the AMD side, it seems as though they are more willing to go back and advance the performance of their prior generation as they release new driver versions.

There are very few instances where AMD beats out NVIDIA in terms of driver support -- it is often a selling point for the jolly green giant -- but this appears to be a definite win for AMD.

Source: Phoronix

More Ivy Bridge on Linux experiments

Subject: General Tech | June 28, 2012 - 01:24 PM |
Tagged: Intel, opengl, opencl, linux, Ivy Bridge

Intel really seems to have taken the general criticism about the lack of Linux support during the initial release of Sandy Bridge to heart and made sure not to repeat the mistake with Ivy Bridge.  Phoronix have spent the last two months exhaustively testing the performance of the i7-3770K and today offer some general observations about the chip and Intel's support of open source.  Much of it is good news, like the performance of the OpenGL driver as well as its support for OpenGL 4.0 but some is not so good such as the fact that AMD's OpenCL for the CPU works better than Intel's implementation with neither running on the GPU yet.  Check out the other findings in the article.

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"It has been 66 days since Intel formally introduced their Ivy Bridge processors as the 2012 successor to Sandy Bridge. My views on Intel Ivy Bridge (specifically the Core i7 3770K model) back on launch-day were very positive in terms of the Linux compatibility, CPU performance, and the HD 4000 graphics capabilities. Since then I've conducted dozens of additional tests looking at the Core i7 Ivy Bridge on Linux in different areas from comparative benchmarks to Microsoft Windows, trying to run BSD operating systems on the latest hardware, looking at the virtualization performance, compiler tuning, etc. Here is a recap of this additional Ivy Bridge testing that has happened over the past two months of near constant benchmarking."

Here is some more Tech News from around the web:

Tech Talk

Source: Phoronix