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Graphics: CUDA, Radeon and Vulkan

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  • HIPCL Lets CUDA Run On OpenCL+SPIR-V

    Based off AMD's GPUOpen HIP as part of their ROCm stack, researchers at Tampere University in Finland have created HIPCL as leveraging HIP as well as POCL for routing CUDA codes to run on any hardware supporting OpenCL+SPIR-V.

    HIPCL provides a path of running CUDA on top of OpenCL, permitting the OpenCL driver also supports the SPIR-V intermediate representation. The OpenCL implementation also needs to support Shared Virtual Memory (SVM) so that actually rules out using NVIDIA's own driver for taking this route in place of their actual CUDA driver. HIPCL also relies upon a patched version of the LLVM Clang compiler.

  • Radeon RADV Vulkan Driver Tackling NGG Stream-Out

    One of the areas the RadeonSI OpenGL and RADV/AMDVLK Vulkan drivers have had a challenging time promptly support with AMD Navi GPUs has been the NGG (Next-Gen Geometry) functionality but it's slowly getting worked out.

    The NGG engine support has required various fixes to the graphics drivers, Navi 14 NGG support is borked, and various other Next-Gen Geometry support issues in the Navi driver code. At least on the software side the open-source developers have continued to improve the support and today the latest improvements arrived for the Mesa RADV Vulkan driver.

  • Radeon Navi 12/14 Open-Source Driver Support Now Being Marked As "Experimental"

    In an interesting change of course, the open-source driver support for AMD Radeon Navi 12 and Navi 14 GPUs is being flagged as experimental and hidden behind a feature flag.

    Back at the start of August AMD sent out their AMDGPU Linux kernel driver support for Navi 12 along with Navi 14. That Navi 12/14 support has since been queued up for introduction in the Linux 5.4 kernel along with the new Vega-based Arcturus GPU.

  • Vulkan 1.1.123 Released With Two New Extensions

    Vulkan 1.1.123 is the latest weekly update to this high performance graphics API and it's formally introducing two more extensions.

    Besides the usual variety of documentation clarifications and corrections, there are two new Vulkan extensions with version 1.1.123.

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Security: XML External Entity (XXE) Example and the Latest Patches

  • XML External Entity (XXE) Example

    According to OWASP, an XML External Entity attack is a type of attack against an application that parses XML input. This attack occurs when XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, server side request forgery, port scanning from the perspective of the machine where the parser is located, and other system impacts. If a parser accepts unsanitized XML, we can take advantage of that and send our own crafted external XML payload to exploit our target. This post won’t be long so let’s get into it.

  • Security updates for Monday

    Security updates have been issued by Arch Linux (chromium, sdl, and unbound), Debian (clamav, libdatetime-timezone-perl, openssl, tcpdump, and tzdata), Fedora (cutter-re, jackson-annotations, jackson-bom, jackson-core, jackson-databind, jackson-parent, libapreq2, ming, opendmarc, radare2, and thunderbird), openSUSE (chromium), Oracle (kernel), and SUSE (axis, jakarta-commons-fileupload, kernel, sles12sp3-docker-image, sles12sp4-image, system-user-root, and webkit2gtk3).

Get to know Oracle Linux Virtualization Manager

Linux Virtualization Manager can manage multiple on-premises hosts running Oracle Linux KVM. Oracle enhanced Linux KVM in the Unbreakable Enterprise Kernel (UEK) Release 5, an OS kernel tested and optimized for Oracle Linux 7 Update 5. Because Linux KVM is the same hypervisor used for Oracle Cloud Infrastructure, admins have an easy migration path from the Linux Virtualization Manager environment to the Oracle Cloud platform. Linux Virtualization Manager also supports importing and exporting software appliances based on the Open Virtualization Format and Open Virtualization Archive standards. Oracle based Linux Virtualization Manager on the oVirt project, an open source virtualization platform developed by Red Hat. Linux Virtualization Manager relies on the oVirt engine for discovering KVM hosts and configuring storage and network resources. The platform supports KVM administration for multinode environments, offering a large-scale, centralized management platform for server and desktop virtualization. Read more

Python 3.8 Released

  • Python 3.8.0

    Python 3.8.0 is the newest major release of the Python programming language, and it contains many new features and optimizations.

  • Cool New Features in Python 3.8

    The newest version of Python is released today! Python 3.8 has been available in beta versions since the summer, but on October 14th, 2019 the first official version is ready. Now, we can all start playing with the new features and benefit from the latest improvements. What does Python 3.8 bring to the table? The documentation gives a good overview of the new features. However, this article will go more in depth on some of the biggest changes, and show you how you can take advantage of Python 3.8.

Linux Fu: Python GUIs For Command Line Programs (Almost) Instantly

Not every programmer likes creating GUI code. Most hacker types don’t mind a command line interface, but very few ordinary users appreciate them. However, if you write command line programs in Python, Gooey can help. By leveraging some Python features and a common Python idiom, you can convert a command line program into a GUI with very little effort. The idea is pretty simple. Nearly all command line Python programs use argparse to simplify picking options and arguments off the command line as well as providing some help. The Gooey decorator picks up all your options and arguments and creates a GUI for it. You can make it more complicated if you want to change specific things, but if you are happy with the defaults, there’s not much else to it. At first, this article might seem like a Python Fu and not a Linux Fu, since — at first — we are going to focus on Python. But just stand by and you’ll see how this can do a lot of things on many operating systems, including Linux. Read more Also: Applying C - Running Programs With Systemd