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Server: Supercomputing, Kubernetes and More

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  • Supercomputing under a new lens: A Sandia-developed benchmark re-ranks top computers

    A Sandia National Laboratories software program now installed as an additional test for the widely observed TOP500 supercomputer challenge has become increasingly prominent. The program’s full name — High Performance Conjugate Gradients, or HPCG — doesn’t come trippingly to the tongue, but word is seeping out that this relatively new benchmarking program is becoming as valuable as its venerable partner — the High Performance LINPACK program — which some say has become less than satisfactory in measuring many of today’s computational challenges.

  • Bright Computing adds support for OpenHPC

    Today Bright Computing announced it has joined the Linux Foundation and will participate in the OpenHPC Community project. The latest release of Bright Cluster Manager provides the ability for Bright customers to easily integrate OpenHPC libraries and packages for use within a Bright cluster.

  • Kubernetes Becomes The First Project To Graduate From The Cloud Native Computing Foundation
  • Usenet, Authentication, and Engineering (or: Early Design Decisions for Usenet)

    A Twitter thread on trolls brought up mention of trolls on Usenet. The reason they were so hard to deal with, even then, has some lessons for today; besides, the history is interesting. (Aside: this is, I think, the first longish thing I've ever written about any of the early design decisions for Usenet. I should note that this is entirely my writing, and memory can play many tricks across nearly 40 years.)

  • The true costs of hosting in the cloud

    Should we host in the cloud or on our own servers? This question was at the center of Dmytro Dyachuk's talk, given during KubeCon + CloudNativeCon last November. While many services simply launch in the cloud without the organizations behind them considering other options, large content-hosting services have actually moved back to their own data centers: Dropbox migrated in 2016 and Instagram in 2014. Because such transitions can be expensive and risky, understanding the economics of hosting is a critical part of launching a new service. Actual hosting costs are often misunderstood, or secret, so it is sometimes difficult to get the numbers right. In this article, we'll use Dyachuk's talk to try to answer the "million dollar question": "buy or rent?"

  • Memcached DDoS Attacks Slow Down as Patching Ramps Up

    Days after the largest distributed denial-of-service attack in internet history, the attack size of memcached DDoS attacks is now on the decline.

    On March 5, Netscout Arbor Networks reported a 1.7-Tbps DDoS attack that was driven by the amplification of misconfigured memcached servers. While there were some initial fears that the attacks would continue to grow in size, the opposite has happened.

    "We're still seeing lots of them, but their average size is considerably smaller due to ongoing cleanup and mitigation efforts," Steinthor Bjarnason, senior network security analyst at Netscout Arbor, told eWEEK.

More in Tux Machines

lkml: remove eight obsolete architectures

In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems that all the SoC product lines are still around, but have not used the custom CPU architectures for several years at this point. Read more

If you hitch a ride with a scorpion… (Coverity)

I haven’t seen a blog post or notice about this, but according to the Twitters, Coverity has stopped supporting online scanning for open source projects. Is anybody shocked by this? Anybody? [...] Not sure what the story is with Coverity, but it probably has something to do with 1) they haven’t been able to monetize the service the way they hoped, or 2) they’ve been able to monetize the service and don’t fancy spending the money anymore or 3) they’ve pivoted entirely and just aren’t doing the scanning thing. Not sure which, don’t really care — the end result is the same. Open source projects that have come to depend on this now have to scramble to replace the service. [...] I’m not going to go all RMS, but the only way to prevent this is to have open tools and services. And pay for them. Read more

Easily Fund Open Source Projects With These Platforms

Financial support is one of the many ways to help Linux and Open Source community. This is why you see “Donate” option on the websites of most open source projects. While the big corporations have the necessary funding and resources, most open source projects are developed by individuals in their spare time. However, it does require one’s efforts, time and probably includes some overhead costs too. Monetary supports surely help drive the project development. If you would like to support open source projects financially, let me show you some platforms dedicated to open source and/or Linux. Read more

KDE: Kdenlive, Kubuntu, Elisa, KDE Connect

  • Kdenlive Café #27 and #28 – You can’t miss it
    Timeline refactoring, new Pro features, packages for fast and easy install, Windows version and a bunch of other activities are happening in the Kdenlive world NOW!
  • Kubuntu 17.10 Guide for Newbie Part 9
    This is the 9th article, the final part of the series. This ninth article gives you more documentations to help yourself in using Kubuntu 17.10. The resources are online links to certain manuals and ebooks specialized for Kubuntu basics, command lines usage, software installation instructions, how to operate LibreOffice and KDE Plasma.
  • KDE's Elisa Music Player Preparing For Its v0.1 Released
    We have been tracking the development of Elisa, one of several KDE music players, since development started about one year ago. Following the recent alpha releases, the KDE Elisa 0.1 stable release is on the way. Elisa developers are preparing the Elisa v0.1 release and they plan to have it out around the middle of April.
  • KDE Connect Keeps Getting Better For Interacting With Your Desktop From Android
    KDE Connect is the exciting project that allows you to leverage your KDE desktop from Android tablets/smartphones for features like sending/receiving SMS messages from your desktop, toggling music, sharing files, and much more. KDE Connect does continue getting even better.
  • First blog & KDE Connect media control improvements
    I've started working on KDE Connect last November. My first big features were released yesterday in KDE Connect 1.8 for Android, so cause for celebration and a blog post! My first big feature is media notifications. KDE Connect has, since it's inception, allowed you to remotely control your music and video's. Now you can also do this with a notification, like all Android music apps do! So next time a bad song comes up, you don't need to switch to the KDE Connect app. Just click next on the notification without closing you current app. And just in case you don't like notifications popping up, there's an option to disable it.