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Programming: Tryton Unconference, Argonne Looks to Singularity for HPC Code Portability, Mitogen v0.2.4 and More Python Bits

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  • Tryton Unconference 2019: In Marseille on the 6th & 7th of June

    We will go in the sunny city of Marseille in south of France on the 6th and 7th of June. Contrary to previous editions of the Tryton Unconferences the coding sprint will be organized during the two days preceding the conference.

  • Argonne Looks to Singularity for HPC Code Portability

    Scaling code for massively parallel architectures is a common challenge the scientific community faces. When moving from a system used for development—a personal laptop, for instance, or even a university’s computing cluster—to a large-scale supercomputer like those housed at the Argonne Leadership Computing Facility, researchers traditionally would only migrate the target application: the underlying software stack would be left behind.

    To help alleviate this problem, the ALCF has deployed the service Singularity. Singularity, an open-source framework originally developed by Lawrence Berkeley National Laboratory (LBNL) and now supported by Sylabs Inc., is a tool for creating and running containers (platforms designed to package code and its dependencies so as to facilitate fast and reliable switching between computing environments)—albeit one intended specifically for scientific workflows and high-performance computing resources.

  • Mitogen v0.2.4 released

    Mitogen for Ansible v0.2.4 has been released. This version is noteworthy as it contains major refinements to the core libary and Ansible extension to improve its behaviour during larger Ansible runs.

    Work on scalability is far from complete, as it progresses towards inclusion of a patch held back since last summer to introduce per-CPU multiplexers. The current idea is to exhaust profiling gains from a single process before landing it, as all single-CPU gains continue to apply in that case, and there is much less risk of inefficiency being hidden in noise created by multiple multiplexer processes.

  • Introducing kids to computational thinking with Python
  • The Factory Method Pattern and Its Implementation in Python
  • PyDev of the Week: Paolo Melchiorre
  • Create a filter for the audio and image files with python
  • Some simple CodeWars problems

More in Tux Machines

Introducing the XPS 13 developer edition, 9th generation

Today we’d like to announce that the new XPS 13 developer edition (7390) will soon be available in the US, Canada and Europe. The new developer edition, based on Intel’s 10th Gen Core™ U series processors, is part of Dell’s new consumer PC portfolio that is being unveiled today. These systems represent the 9th generation of the XPS 13 developer edition and will come with the Killer™ AX1650 (2×2) built on Intel WiFi 6 Chipset. The new 7390 systems will co-exist alongside the current 9380 XPS 13 developer edition. Read more Also: Dell Unveils New XPS 13 Developer Edition Ubuntu Laptop with 10th Gen Intel CPUs Dell XPS 7390 Developer Edition Announced - Intel Comet Lake With Ubuntu 18.04 LTS

Security: Patches, Security Flaws Caused by Compiler Optimisations, Microsoft Updates Break Windows Again

  • Security updates for Wednesday

    Security updates have been issued by Fedora (ghostscript, pango, and squirrelmail), openSUSE (libcryptopp, squid, tcpdump, and wireshark), SUSE (flatpak), and Ubuntu (giflib and NLTK).

  • Security flaws caused by compiler optimizations

    An optimizing compiler is one that tries to maximize some attribute(s) of an executable program at the expense of other attribute(s). Usually the goal is to improve performance or code size at the expense of compiler time and the possibility to debug the program at a later stage. Most modern compilers support some sort of optimization. Normally code optimized for performance is the usual preference. In cases where space is a constraint like embedded systems, developers also prefer code optimized for size. Code optimization is both an art as well as a science. Various compilers use different techniques for optimizing code.

  • To patch Windows or not: Do you want BlueKeep bug or broken Visual Basic apps?

    Microsoft says apps that use Visual Basic 6 (VB6), VBA, and VBScript "may stop responding with error" after its updates from this Tuesday have been installed. "After installing this update, applications that were made using Visual Basic 6 (VB6), macros using Visual Basic for Applications (VBA), and scripts or apps using Visual Basic Scripting Edition (VBScript) may stop responding and you may receive an 'invalid procedure call error'," Microsoft says. The issue affects all supported versions of Windows 10, Windows 7, Windows 8.1, and their corresponding server versions. "Microsoft is presently investigating this issue and will provide an update when available," the company said. Microsoft didn't offer an explanation for the problem but it did flag earlier this month that it will move ahead with sunsetting VBScript, by disabling it in IE11 by default via an update in this week's patch. "The change to disable VBScript will take effect in the upcoming cumulative updates for Windows 7, 8, and 8.1 on August 13, 2019," Microsoft warned in a blog. The change brought these versions of Windows in line with Windows 10.

Latest Debian GNU/Linux Security Patch Addresses 14 Vulnerabilities, Update Now

Available for the Debian GNU/Linux 10 "Buster" and Debian GNU/Linux 9 "Stretch" operating system series, the new Linux kernel security update addresses a total of 14 vulnerabilities discovered by various security researchers. The Debian Project urges all users to update their installations as soon as possible. Among the security flaws patched, we can mention a race condition in the libsas subsystem that supports Serial Attached SCSI (SAS) devices, a potential double-free in the block subsystem, as well as two issues that could make it easier for attackers to exploit other vulnerabilities. Read more

Endeavour OS | Review from an openSUSE User

Endeavour OS is the unofficial successor to Antegros, I’ve never used Antegros so I cannot make any comparisons between the two. It should also be noted that I think Arch Linux, in general is more work than it is worth so this won’t exactly be a shining review. Feel free to bail here if you don’t like the direction of my initial prejudice. I am reviewing Endeavour OS as a rather biased openSUSE Linux user that is firmly entrenched in all things openSUSE. I am going at this from the perspective that my computer is my companion, my coworker or assistant in getting my digital work done and some entertainment sprinkled in there as well. Bottom Line Up Front: If you want to run main-line Arch, Endeavour OS is absolutely the way to get going with it. They take the “Easy Plus One” approach to Arch by allowing you to install what I would consider a minimal but very usable base and learn to use “genuine Arch” with all the triumphs and pitfalls. If you want to go Arch, I can most certainly endorse this as the route to do so. However, even after playing here for two weeks, I find Arch to be more trouble than it is worth but a great educational experience. Read more