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Red Hat

New Linux Kernel Update for Red Hat Enterprise Linux 7 & CentOS 7 Fixes Two Bugs

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Linux
Red Hat
Security

The new Linux kernel update, which is available for Red Hat Enterprise Linux 7 and CentOS Linux 7 systems, is only a bugfix release, not a security update, addressing a bug that made applications consume the entire allocated CPU quota, as well as to backport the "sched: Fix race between task_group and sched_task_group" fix.

Users are advised to update their kernel packages in all the supported systems (see below for details) to kernel-3.10.0-1062.9.1.el7.x86_64.rpm and related packages, all of which are available to install for free from the stable software repositories of all supported Red Hat Enterprise Linux 7 operating system variants and CentOS Linux 7.

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Fedora and Red Hat: Linux 5.4, Fedora Respins, Containers and Red Hat Integration

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Red Hat
  • Fedora Prepares To Roll-Out Linux 5.4 Kernel Update But Needs Help Testing

    Fedora users eager to see the Linux 5.4 stable kernel can engage by helping to test their newly-spun 5.4-based kernel image prior to it officially landing as a stable release update.

    Fedora remains one of the few non-rolling-release distributions that is willing to send down major kernel updates as part of their stable release updates for existing distributions. They are in the process of sending down Linux 5.4 but are hoping for more widespread testing first.

  • F31-20191206 update Live isos released

    The Fedora Respins SIG is pleased to announce the latest release of Updated F31-20191206 Live ISOs, carrying the 5.3.8-300 kernel.

    This set of updated isos will save considerable amounts of updates after install. ((for new installs.)(New installs of Workstation have 800+MB of updates)).

    A huge thank you goes out to irc nicks dowdle, ledeni, Southern-Gentleman for testing these iso.

  • Red Hat's Adam Young: Containers from first principals

    Computing is three things: calculation, movement, and storage. The rest is commentary.

    What are containers? I was once told they were “just” processes. It took me a long time to get beyond that “just” to really understand them. Processes sit in the middle of a set of abstractions in computer science. Containers are built on that abstraction. What I’d like to do here is line up the set of abstractions that support containers from the first principals of computer science.

    Computation is simple math: addition and the operations built from it like subtraction and multiplication, and simple binary tricks like left shift which are effectively forms of multiplication.

    A CPU takes a value out of memory, performs math on it, and stores it back in memory. Sometimes that math requires two values from memory. This process is repeated endlessly as long as your computer is on.

    Storage is the ability to set a value somewhere and come back later to see that it has the same value. If maintaining that value requires electricity, we call it volatile memory. If it can survive a power outage, we call it persistent storage.

    The movement of information from one location to another involves the change of voltage across a wires. Usually, one value is used to select the destination, and another value is transferred.

    That is it. That is the basics in a nutshell. All other abstractions in computer science are built from these three pieces.

    One little quibble: there is a huge bit I am skipping over: interactions with the outside world. Input, from sensors, and various parts of the output story as well. I’ll just acknowledge those now, but I’m not going to go in to them in too much depth.

  • What's new in Red Hat Integration

    The latest release of Red Hat Integration is now available, and with it we've introduced some exciting new capabilities aimed at helping customers better manage APIs at scale, enhancements for Apache Kafka-based environments, and API policy extensibility.

    Red Hat Integration is a comprehensive set of agile and flexible integration and messaging products that provide API connectivity, data transformation, service composition and orchestration, real-time messaging, cross-datacenter message streaming, and API management to connect apps across hybrid architectures and enable API-centric business services.

Red Hat, IBM and Fedora's Kernel

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Red Hat
SUSE
  • CodeReady Workspaces devfile, demystified

    With the exciting advent of CodeReady Workspaces (CRW) 2.0 comes some important changes. Based on the upstream project Eclipse Che 7, CRW brings even more of the “Infrastructure as Code” idea to fruition. Workspaces mimic the environment of a PC, an operating system, programming language support, the tools needed, and an editor. The real power comes by defining a workspace using a YAML file—a text file that can be stored and versioned in a source control system such as Git. This file, called devfile.yaml, is powerful and complex. This article will attempt to demystify the devfile.

  • Building freely distributed containers with Podman and Red Hat UBI

    DevNation tech talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions and code and sample projects to help you get started. In this talk, you’ll learn about building containers with Podman and Red Hat Universal Base Image (UBI) from Scott McCarty and Burr Sutter.

    We will cover how to build and run containers based on UBI using just your regular user account—no daemon, no root, no fuss. Finally, we will order the de-resolution of all of our containers with a really cool command. After this talk, you will have new tools at the ready to help you find, run, build, and share container images.

  • Backfitting SLES 12 for IBM z15 – It’s in Our DNA

    For 20 years, SUSE has partnered with IBM to advance Linux on Z. From the early days of the IBM Linux Tech Center to an elaborate open source ecosystem, you might say that supporting IBM Z is part of our DNA.
    Several months ago, SUSE included support for the newly announced IBM z15 and IBM LinuxONE III systems as part of SLES 15. Now, with SUSE Linux Enterprise Server for IBM Z and LinuxONE 12 SP5, we are backfitting all the latest IBM Z support for pervasive encryption and more.
    The latest IBM z15 system is designed to support your mission-critical initiatives and allow you to be innovative as you design and scale your environment. Combined with SUSE Linux Enterprise Server for IBM Z and LinuxONE, these state-of-the-art systems provide an ultra-secure data serving platform to support the global economic growth we are seeing today.

  • Contribute at the Fedora Test Week for Kernel 5.4

    The kernel team is working on final integration for kernel 5.4. This version was just recently released, and will arrive soon in Fedora. This version has many security fixes included. As a result, the Fedora kernel and QA teams have organized a test week from Monday, December 09, 2019 through Monday, December 16, 2019. Refer to the wiki page for links to the test images you’ll need to participate. Read below for details.

Red Hat, IBM and Server Leftovers

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Red Hat
Server
  • Red Hat’s David Egts Talks Open-Source Approaches to Digital Transformation

    David Egts, chief technologist of Red Hat's (NYSE: RHT) North American public sector business, has said that open-source procedures can help organizations meet digital transformation goals while promoting mobility and addressing a skills gap.

    In a Fedscoop interview posted Monday, Egts noted that Red Hat’s Open Innovation Labs works with government customers to help them reduce workload processing time through new software development methods.

  • Empowering the open source community

    Red Hat invests heavily in open source communities, offering our employees' time and skills in many upstreams to advance the pace of innovation and support our customers' interests. And when Red Hat purchases a company, it ensures that any proprietary software becomes available as open source. For instance, just this month, Red Hat shared Quay, the formerly proprietary container registry and security scanner software, as an open source upstream available to all.

    [...]

    Awareness of open source in the Middle East is growing in many sectors, particularly in the telecommunications sphere. As operators seek to evolve from physical to digital players, open source ecosystems and solutions are being implemented to optimise and simplify operations, reduce costs, and facilitate digital transformation agendas. From Egypt, Saudi Arabia, and the UAE, to everywhere in between, open source solutions are being unlocked as cost-effective, flexible, reliable, secure, and alternative foundational systems to drive innovation and digital transformation. For telecommunications organisations, open source will enable improved delivery of digital services, the ability to introduce new digital services faster, and the capabilities to leverage insights from data to create new revenue streams.

  • Coders are the new superheroes of natural disasters

    The film, produced by IBM and directed by Austin Peck, centers on the increasing incidents of the devastation of natural disasters, and a cadre of coders who've dedicated their attentions and tech talent to help facilitate and expedite the responders' response to natural disasters. The social-activist developers serve as a frontline defense against some of the society-at-large greatest dangers.

  • Explore Kubernetes with OpenShift in a workshop near you

    The Kubernetes with OpenShift World Tour is a series of in-person workshops around the globe that help you build the skills you need to quickly modernize your applications. This World Tour provides a hands-on experience and teaches the basics of working with the hybrid-cloud, enterprise container platform Red Hat® OpenShift® on IBM Cloud™. You learn coding skills in the world of containerized, cloud-native development with expert developer advocates, who have deep technical experience building cloud microservices and applications with Red Hat OpenShift.

  • IBM VP of ‘opentech’ on the open road ahead

    Moore and his team of open source developers work with open source communities such as the Apache Software Foundation, Linux Foundation, eClipse, OSGi, OpenStack, Cloud Foundry, Docker, JS, Node.js and more.

  • 5 Not to miss Linux hosting providers

    Next to this, Linux based servers have proved to be stable and capable of handling numerous requests at the time. Because no one wants a site that crashes when visitors are trying to get to it. It can be very annoying and bad for business. Linux has a very dedicated community and on the various forums, you can find useful information in dealing with a certain problem that you may encounter.

Red Hat: Containers and Kubernetes, Systemd Everywhere, AMQ Streams on OpenShift and System Administrators

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Red Hat
  • Containers and Kubernetes can be essential to a hybrid cloud computing strategy

    Hybrid cloud is gaining ground among enterprises that want to expand computing resources with public cloud infrastructure while still using their on-premise, data center environments. Adding public cloud can mean more elasticity, scalability, and even faster time to market. But if you want to improve the chances that your hybrid cloud can deliver on its promise, you need to think about adding containers to the mix.

    Linux containers provide a way to encapsulate application code in a way that makes the code more portable and faster to deploy. More and more organizations are using containers as part of the infrastructure for microservices-based, cloud-native applications.

    Containers can be portable across environments such as Red Hat OpenShift Container Platform and consistent, so they can speed application delivery times and make it easier for teams to collaborate, even if those teams are working in different deployment environments. And they can serve as a bridge between your data center and public cloud environments.

  • Systemd-homed Looks Like It Will Merged Soon For systemd 245

    Announced back in September at the All Systems Go event in Berlin was systemd-homed as a new effort to improve home directory handling. Systemd-homed wants to make it easier to migrate home directories, ensure all user data is self-contained, unify user-password and encryption handling, and provide other modern takes on home/user directory functionality. That code is expected to soon land in systemd.

    Systemd-homed was talked about by Lennart as being ready for versions 244 or 245. Now that systemd 244 shipped at the end of November, systemd-homed is looking like it will soon land in Git.

  • Understanding Red Hat AMQ Streams components for OpenShift and Kubernetes: Part 3

    In the previous articles in this series, we first covered the basics of Red Hat AMQ Streams on OpenShift and then showed how to set up Kafka Connect, a Kafka Bridge, and Kafka Mirror Maker.

  • What personality trait most defines a sysadmin?

    When you think of a system administrator, who do you think of?

    Chances are, most of us have taken a Myers-Briggs Type Indicator (MBTI) test at some point in our careers. For me, my results typically come up as INTJ, and I've always thought the traits associated with that type (introversion, intuition, thinking, judging) have aligned with my interest in technology and the kind of work I enjoy.

    But that doesn't mean that those are the only characteristics that make a good sysadmin. Far from it. A successful team is made up of a diversity of skills, viewpoints, and personal characteristics.

  • How to identify a strong sysadmin job applicant

    When a company looks for new resources with skills in a specific focus area—especially in IT—the challenge is on. Why? Because only a few in the company, if any, have even a vague notion of how to verify the skills they are looking for. The work of a system administrator is a key function, and if it goes wrong, the very existence of the company is at stake (something I’ve been unfortunate to witness when called in on an emergency rescue effort).

Fedora 31 Elections Results

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Red Hat

The Fedora 31 election cycle has concluded. Here are the results for each election. Congratulations to the winning candidates, and thank you all candidates for running in this election!

Council

One Council seat was open this election. A total of 243 ballots were cast, meaning a candidate could accumulate up to 729 votes (243 * 3).

# votes Candidate
520 Dennis Gilmore
259 Alberto Rodríguez Sánchez
237 John M. Harris, Jr.

FESCo

Five FESCo seats were open this election. A total of 273 ballots were cast, meaning a candidate could accumulate up to 2184 votes (273 * 8).

# votes Candidate
1490 Miro Hrončok
1350 Kevin Fenzi
1115 Zbigniew Jędrzejewski-Szmek
879 Fabio Valentini
877 David Cantrell
868 Justin Forbes
813 Randy Barlow
534 Pete Walter

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Also: Fedora program update: 2019-49

5 cool terminal pagers in Fedora

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Red Hat

Large files like logs or source code can run into the thousands of lines. That makes navigating them difficult, particularly from the terminal. Additionally, most terminal emulators have a scrollback buffer of only a few hundred lines. That can make it impossible to browse large files in the terminal using utilities which print to standard output like cat, head and tail. In the early days of computing, programmers solved these problems by developing utilities for displaying text in the form of virtual “pages” — utilities imaginatively described as pagers.

Pagers offer a number of features which make text file navigation much simpler, including scrolling, search functions, and the ability to feature as part of a pipeline of commands. In contrast to most text editors, some terminal pagers do not require loading the entire file for viewing, which makes them faster, especially for very large files.

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Red Hat: AMQ, Analytics, RHEL and More

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Red Hat
  • Understanding Red Hat AMQ Streams components for OpenShift and Kubernetes: Part 2
  • Red Hat announces beta access to the Red Hat migration analytics service

    Do you know where your workloads are, their current state and what it would take to modernize them? The answer is likely no. That's why Red Hat is unveiling the Red Hat migration analytics service, currently in beta. Here's what the service offers, and how it can help you with inventory, migration suggestions and more.

  • Red Hat Enterprise Linux 8.1 Debuts With Added Developer Tools, Security & Automation

    Red Hat, Inc. today announced the general availability of Red Hat Enterprise Linux 8.1, the latest version of the world's leading enterprise Linux platform. The first minor release of the Red Hat Enterprise Linux 8 platform, Red Hat Enterprise Linux 8.1 enhances the manageability, security and performance of the operating system underpinning the open hybrid cloud while also adding new capabilities to drive developer innovation.

    Red Hat Enterprise Linux is the foundation of Red Hat's open hybrid cloud portfolio, providing the underlying engine that allows complex workloads to be developed and deployed across physical, virtual, private and public cloud environments with greater confidence and control. As the backbone of the hybrid cloud, the world's leading enterprise Linux platform provides a consistent user experience across on premise deployments and all major public cloud infrastructures. At the same time, it supports key production workloads like Microsoft SQL Server and SAP HANA while also enabling new workloads like artificial intelligence (AI) and machine-learning (ML).

Linux on the MAG1 8.9 inch mini-laptop (Ubuntu and Fedora)

Filed under
GNU
Linux
Red Hat
Ubuntu

The Magic Ben MAG1 mini-laptop is a 1.5 pound notebook computer that measures about 8.2″ x 5.8″ x 0.7″ and which features an 8.9 inch touchscreen display and an Intel Core m3-8100Y processor.

As I noted in my MAG1 review, the little computer also has one of the best keyboards I’ve used on a laptop this small and a tiny, but responsive trackpad below the backlit keyboard.

Available from GeekBuying for $630 and up, the MAG1 ships with Windows 10, but it’s also one of the most Linux-friendly mini-laptops I’ve tested to date.

[...]

I did not install either operating system to local storage, so I cannot comment on sleep, battery life, fingerprint authentication, or other features that you’d only be able to truly test by fully installing Ubuntu, Fedora, or another GNU/Linux-based operating system. But running from a liveUSB is a good way to kick the tires and see if there are any obvious pain points before installing an operating system, and for the most part the two operating systems I tested look good to go.

Booting from a flash drive is also pretty easy. Once you’ve prepared a bootable drive using Rufus, UNetbootin, or a similar tool, just plug it into the computer’s USB port, hit the Esc key during startup to bring up the UEFI/SETUP utility.

Read more

Also: Top 10 technical skills that will get you hired in 2020

Red Hat: Ceph Storage, RHEL, OpenShift and More

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Red Hat
  • Comparing Red Hat Ceph Storage 3.3 BlueStore/Beast performance with Red Hat Ceph Storage 2.0 Filestore/Civetweb

    This post is the sequel to the object storage performance testing we did two years back based on Red Hat Ceph Storage 2.0 FileStore OSD backend and Civetweb RGW frontend. In this post, we will compare the performance of the latest available (at the time of writing) Ceph Storage i.e. version 3.3 (BlueStore OSD backend & Beast RGW frontend) with Ceph Storage 2.0 version (mid-2017) (FileStore OSD backend & Civetweb RGW frontend).

    We are conscious that results from both these performance studies are not scientifically comparable. However, we believe that comparing the two should provide you significant performance insights and enables you to make an informed decision when it comes to architecting your Ceph storage clusters.

    As expected, Ceph Storage 3.3 outperformed Ceph Storage 2.0 for all the workloads that we have tested. We believe that Ceph Storage 3.3 performance improvements are attributed to the combination of several things. The BlueStore OSD backend, the Beast web frontend for RGW, the use of Intel Optane SSDs for BlueStore WAL, block.db, and the latest generation Intel Cascade Lake processors.

  • Red Hat: Leading the enterprise Linux server market

    Red Hat has long believed that the operating system should do more than simply exist as part of a technology stack; it should be the catalyst for innovation. Underpinning almost every enterprise IT advancement, from cloud services and Kubernetes to containers and serverless, is the operating system; frequently, this operating system is Linux. Red Hat is proud of the leadership position we have long maintained in the enterprise operating system market, providing the Linux foundation to drive enterprise IT innovation forward.

    Today, we’re pleased to continue this leadership, with a new report from IDC that includes data showing that Red Hat as the leading choice for paid Linux in the worldwide server operating environment market as well as a powerful player in server operating systems at-large.

    According to the report, "Worldwide Server Operating Environments Market Shares, 2018: Overall Market Growth Accelerates:"

  • Microservices-Based Application Delivery with Citrix and Red Hat OpenShift

    Citrix is thrilled to have recently achieved Red Hat OpenShift Operator Certification (Press Release). This new integration simplifies the deployment and control of the Citrix Application Delivery Controller (ADC) to a few clicks through an easy-to-use Operator.

    Before we dive into how you can use Citrix Operators to speed up implementation and control in OpenShift environments, let me cover the benefits of using the Citrix Cloud Native Stack and how it solves the challenges of integrating ingress in Kubernetes.

  • Wavefront Automates and Unifies Red Hat OpenShift Observability, Full Stack

    Red Hat OpenShift is an enterprise Kubernetes platform intended to make the process of developing, deploying and managing cloud-native applications easier, scalable and more flexible. Wavefront by VMware provides enterprise-grade observability and analytics for OpenShift environments across multiple clouds. Wavefront ingests, analyzes and visualizes OpenShift telemetry – metrics, histograms, traces, and span logs – across the full-stack, including distributed applications, containers, microservices, and cloud infrastructure.

    As a result of Wavefront’s collaboration with Red Hat, you can now get automated enterprise observability for OpenShift that’s full stack, through the Red Hat OpenShift Certified Wavefront Operator for OpenShift 4.1 and later. This Operator is available in Operator Hub embedded in OpenShift, a registry for finding Kubernetes Operator-backed services.

  • RHEL 8.1: A minor release with major new container capabilities

    The release of Red Hat Enterprise Linux 8.1 is a minor update to RHEL, but a major step forward with containers. The container-tools:rhel8 application stream has been updated with new versions of Podman, Buildah, Skopeo, runc, container selinux policies and other libraries. The core set of base images in Red Hat Universal Base Image (UBI) have been updated to 8.1, and UBI has expanded to include Go 1.11.5 as a developer use case. There are now 37 images released as part of UBI - they can all be seen on the UBI product page. Finally, we have released some really good updated documentation covering rootless, and other new features in the container-tools module.

    [...]

    When we launched Red Hat Universal Base Image at Red Hat Summit in 2019, we got a lot of great feedback. One of the first requests we received was for Golang. It is a popular programming language in the Cloud Native space, and we immediately recognized the value of adding it (also, I know what you’re thinking! Stay tuned and you might see OpenJDK images soon).

    With the update to RHEL 8.1, we have added the ubi8/go-toolset container to the UBI family. This gives users the ability to compile Go applications using a pre-packaged container with Go 1.11.5.

  • Red Hat’s CTO sees open-source as driver of choice and consistency in hybrid environments

    A case can certainly be made that Red Hat Inc. and the open-source movement have commoditized portions of the information technology infrastructure. A much wider range of tools and systems are now available to enterprises than ever before.

    This trend is just part of the open-source journey, one that Chris Wright (pictured), as the senior vice president and chief technology officer of Red Hat and a veteran Linux developer, has seen evolve over more than 20 years as a software engineer.

    “What we’re experiencing in the Linux space is, it’s driving a commoditization of infrastructure,” Wright said. “It’s switching away from the traditional vertically integrated stack of a [reduced instruction set computer]/Unix environment to providing choice. As infrastructure changes, it’s not just hardware, it’s virtualized data centers, it’s public clouds.”

  • Introduction to the Red Hat OpenShift deployment extension for Microsoft Azure DevOps
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This Cool Cyberpunk Desktop is Easy to Recreate on Kubuntu

Arguably the most striking feature of this neo-noir desktop in the video above is the vivid live wallpaper. Atmospheric, this instantly instills an edgy, futuristic vibe reminiscent of films like Blade Runner, Dark City, and eXistenZ. I am even more impressed by easy it is to recreate the whole look (assuming you’re running KDE Plasma desktop) for yourself. On a regular Ubuntu desktop with GNOME Shell setting up a live wallpaper requires some a bit of effort (installing an unmaintained app from a random repo or getting tricksy with mpv, fining the numbers and deftly placing enough hyphens). Read more

AMD: Ryzen, AMDGPU and More

  • ASUS TUF Laptops With Ryzen Are Now Patched To Stop Overheating On Linux

    The AMD Ryzen Linux laptop experience continues improving albeit quite tardy on some elements of the support. In addition to the AMD Sensor Fusion Hub driver finally being released and current/voltage reporting for Zen CPUs on Linux, another step forward in Ryzen mobile support is a fix for ASUS TUF laptops with these processors.

  • AMD Sends In A Bunch Of Fixes For Linux 5.6 Along With Pollock Support

    After already several rounds of feature work queued in DRM-Next for Linux 5.6, AMD has submitted a final batch of feature work for this next kernel as it concerns their AMDGPU graphics driver. While Linux 5.6's merge window isn't opening until around the start of February, with RC6 having come, it effectively marks an end to the feature window of DRM-Next for targeting the next kernel. AMD's final pull request is mostly centered on fixes plus a few other extras and also enabling AMD Pollock display/graphics support for that forthcoming hardware.

  • The AMD Ryzen Thermal / Power Linux Reporting Improvements Working Well - V2 Up For Testing

    A few days ago I reported on AMD's "k10temp" Linux kernel driver finally seeing the ability to report CCD temperatures and CPU current/voltage readings as a big improvement to this hardware monitoring driver. The work hasn't yet been queued for inclusion into the mainline kernel, but initial testing is working well and a second revision to the patches has been sent out. Linux HWMON maintainer Guenter Roeck who spearheaded this work independent of AMD sent out the "v2" k10temp driver improvements on Saturday. This allows core complex tie temperature reporting for Zen 2 CPUs and allows current and voltage reporting for Ryzen CPUs. While this information has long been available to Windows users, sadly it's not been the case for Linux at least as far as mainline drivers go -- the out-of-tree Zenpower driver and other third-party attempts have been available but nothing mainline.

Intel's OSPray 2.0 Ray-Tracing Engine Released

An area where Intel continues striking with rhythm and near perfection is on the open-source software front with their countless speedy and useful open-source innovations that often go unmatched as well as timely hardware support. Out this weekend is their OSPray 2.0 release for this damn impressive ray-tracing engine. OSPray 2.0 is out as their latest big upgrade to this open-source ray-tracing engine that supports photo-realistic global illumination, MPI for exploiting large system performance, volume rendering, and is all open-source software. OSPray 2.0 is another big advancement for this project that is part of Intel's growing oneAPI tool-kit. Read more