gpu News - Page 19 of 30 - CNX Software

July 25, 2016May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Linux 4.7 Release – Main Changes, ARM and MIPS Architectures

Linux 4.7 is out: So, after a slight delay due to my travels, I’m back, and 4.7 is out. Despite it being two weeks since rc7, the final patch wasn’t all that big, and much of it is trivial one- and few-liners. There’s a couple of network drivers that got a bit more loving. Appended is the shortlog since rc7 for people who care: it’s fairly spread out, with networking and some intel Kabylake GPU fixes being the most noticeable ones. But there’s random small noise spread all over. And obviously, this means that the merge window for 4.8 is open.Judging by the linux-next contents, that’s going to be a bigger release than the current one (4.7 really was fairly calm, I blame at least partly summer in the northern hemisphere). Linus Linux 4.6 brought USB 3.1 superspeed, OrangeFS distributed file system, 802.1AE MAC-level encryption (MACsec), and BATMAN V protocol support, improved […]

May 30, 2016June 9, 2018 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

ARM announces “premium IP” for VR and AR with Cortex-A73 Processor and Mali-G71 GPU

Today ARM has revealed the first details of its latest mobile processor and GPU, both said to be optimized for VR (Virtual Reality) and AR (Augmented Reality) applications. Starting with the ARM Cortex-A73, we’re looking at an evolution of the current Cortex-A72 with ARM claiming 30 percent “sustained” performance over the Cortex-A72 and over twice the performance over the Cortex-A57. ARM is already talking about clock speeds of up to 2.8GHz in mobile devices. Other improvements include an increase up to 64k L1 instruction and data cache, up from 48 and 32k respectively for the Cortex-A72, as well as up to 8MB of L2 cache. The Cortex-A73 continues to support ARM’s big.LITTLE CPU design in combination with the Cortex-A53 or the Cortex-A35. It’s also the first ARM core to have been designed to be built using 10nm FinFET technology and it should be an extremely small CPU at around 0.65 […]

January 7, 2016 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

PowerVR GT7200 Plus and GT7400 Plus GPUs Support OpenCL 2.0, Better Computer Vision Features

Imagination Technologies introduced PowerVR Series7XT GPU family with up to 512 cores at the end of 2014, and at CES 2016, they’ve announced Series7XT Plus family with GT7200 Plus and GT7400 Plus GPUs, with many of the same features of Series7XT family, plus the addition of OpenCL 2.0 API support, and improvements for computer vision with a new Image Processing Data Master, and support for 8-bit and 16-bit integer data paths, instead of just 32-bit in the previous generation, for example leading to up to 4 times more performance for applications, e.g. deep learning, leveraging OpenVX computer vision API. GT7200 Plus GPU features 64 ALU cores in two clusters, and GT7400 Plus 128 ALU cores in a quad-cluster configuration. Beside OpenCL2.0, and improvements for computer vision, they still support OpenGL ES 3.2, Vulkan, hardware virtualization, advanced security, and more. The company has also made some microarchitectural enhancements to improve performance […]

December 24, 2015 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

Maxsun MS-GTX960 Nvidia GTX960 Graphics Card Unboxing and Installation

When I wrote an article about H.265 and VP9 video encoding, I noticed only the second generation Maxwell Nvidia Graphics would support H.265 decoding (up to 500 fps) and HDMI 2.0 output, a few weeks after purchasing a first generation Nvidia GTX750 GPU… So when GearBest contacted me about Graphics cards reviews I said I would be interesting in HDMI 2.0 and H.265 capable graphics card, which I meant I had to get a card with Nvidia GM20x chip with the cheapest being GTX960. So the company agreed to send me Maxsun MS-GTX960 graphics card matching my requirements for $240.04. I won’t use it for gaming at all, but instead I plan to use the card to evaluate Kodi 16.x 4K H.265 and VP9 support and compare video performance to the cheap and low power Amlogic S905 TV boxes on the market, as well as try out H.265 video encoding, […]

November 20, 2015November 20, 2015 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Amlogic S912 Processor Could Feature an ARM Mali-T830 GPU

Amlogic S912 launch has been delayed by a few months, and if we are to believe the data from GFXBench (test 1; test 2), the reason could be that they switched the design from a Mali-T7xx GPU to a more powerful Mali-T830 GPU. S912 processor is still based on four Cortex A53 core @ up to 2.0 GHz like in S905, but the GPU will be much more powerful. One person noticed these results and wrote an analysis and comparison (in Korean) against the Mali-860MP2 GPU found in Mediatek MT6755 SoC (Helio P10) SoC. Offscreen Manhattan 3.1 Manhattan T-Rex ALU ALU2 Fillrate Texturing MT6755 4.8 7.2 17.2 6.0 1012 S912 4.4 7.0 16.3 34.7 5.3 1283 1000 So while Mali-860MP2 is faster for all listed benchmark the advantage is not that great. His analysis compared benchmarks (read post for details) concludes that the GPU in S912 could be clocked at […]

November 19, 2015November 19, 2015 by Jean-Luc Aufranc (CNXSoft) - 50 Comments

Amlogic S905 Source Code Published – Linux, U-Boot, Mali-450 GPU and Other Drivers

Amlogic has an open linux website where they regurlarly release GPL source code, and with Amlogic S905 devices coming to market, they’ve released a few tarballs at the beginning of the month including Linux 3.14 source code, U-boot source code, and Mali-450MP GPU kernel source code (obviously not userspace), as well as some other drivers for WiFi, NAND flash, PMU, TVIN, etc… Let’s get to the download links: Linux 3.14.29 source code U-boot 2015.01 GPU drivers for ARM Mali-450MP Broadcom and Realtek Wifi drivers and firmware (November 4, 2015) can be found @ http://openlinux.amlogic.com:8000/download/ARM/wifi/. Other kernel modules (November 4, 2015) @ http://openlinux.amlogic.com:8000/download/ARM/modules/. I quickly tried to build the Linux source. If you’ve never build a 64-bit ARM kernel or app before, you’ll fist need to install the toolchain. I installed the one provided with Ubuntu 14.04:

sudo apt-get install gcc-aarch64-linux-gnu

1	sudo apt-get install gcc-aarch64-linux-gnu

Now extract the tarball and enter the source directory:

tar xvf arm-src-kernel-2015-11-04-9e845bea41.tar.gz 
cd arm-src-kernel-2015-11-04-9e845bea41

1 2	tar xvf arm-src-kernel-2015-11-04-9e845bea41.tar.gz cd arm-src-kernel-2015-11-04-9e845bea41

At first I […]

November 17, 2015November 17, 2015 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Raspberry Pi’s VideoCore 4 GPU Driver Added to Linux Mainline in Kernel 4.4

While your x86 and AMD64 computer will usually boot with Linux mainline without issues, most ARM boards and device won’t, and many of the ones that do boot only support headless mode, and limited functionalities. The Raspberry Pi had been supporting HDMI output with a simple framebuffer for a while, but a developer working on the Videocore 4 (VC4) GPU found inside Broadcom BCM2835 and BCM2836 processors, has recently submitted a patchset to add VC4 GPU to Linux mainline that should make it to Linux 4.4. The commit message does mention some features are still missing, but it’s a start: This pull request introduces the vc4 driver, for kernel modesetting on the Raspberry Pi (bcm2835/bcm2836 architectures). It currently supports a display plane and cursor on the HDMI output. The driver doesn’t do 3D, power management, or overlay planes yet. Via Golem and Sanders. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in […]

November 11, 2015 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

Nvidia Tegra X1 Development Board is Finally Available… for $599

When Nvidia introduced Nvidia Tegra X1 octa processor with a 256-core Maxwell GPU at the very beginning of the year, I was expecting Jetson TX1 is follow suit in the next few months, but instead the company launched Nvidia Shield Android TV box based on the processor. The company has now launched Jetson TX1 module and development board. Let’s check the module first and its main specifications and features: SoC – Nvidia Tegra X1 octa core processor with 4x ARM Cortex A57 cores, 4x ARM Cortex A53 cores, and a 256-core Maxwell GPU System Memory – 4GB LPDDR4 (25.6 gigabits/second) Storage – 16GB eMMC Connectivity – 802.11ac 2×2 Bluetooth ready, Gigabit Ethernet Video – 4K video encode and decode Camera – Support for 1400 megapixels/second Dimensions – 50mm x 87mm The module support Linux4Tegra operating system based on Ubuntu. Libraries and drivers to leverage the Maxwell GPU include cuDNN CUDA-accelerated […]