TagLinux

HPC workloads in containers: Comparison of container run-times

Recently, I worked on an interesting project to evaluate different container run-times for high-performance computing (HPC) clusters. HPC clusters are what we once knew as supercomputers. Today, instead of giant mainframes, they are hundreds, thousands, or tens of thousands of massively parallel systems. Since performance is critical, virtualization with tools like virtual machines or Docker containers was not realistic. The overhead was too much compared to bare metal.

However, the times are a-changing! Containers are entering as real players in the HPC space. Previously, containers were brushed off as incompatible with most HPC workflows. Now, several open source projects are emerging with unique approaches to enabling containers for HPC workloads. This blog post evaluates four container run-times in an HPC context, as they stand in July 2019:

  • Charliecloud
  • Shifter
  • Singularity
  • Podman
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Students meet Fedora at Linux Weekend 2017

This article was originally published on the Fedora Magazine.


Open source projects are built online and a lot of their community members are placed all over the world. Even though projects have people from around the world, this doesn’t stop ambitious community members to organize open source conferences or events in their own cities. Whether they’re focused generally to open source or for a specific project, you can find a variety of conferences, hackathons, workshops, or meet-ups all over the world. Fedora benefits from having Ambassadors to attend these events to introduce Fedora and spread the word about the community. It’s not uncommon to see Fedora participating in these events, and Linux Weekend 2017 in Tirana, Albania was not an exception.

Jona Azizaj, Fedora Ambassador and Open Labs board member, kicks off Linux Weekend 2017

Jona Azizaj, Fedora Ambassador and Open Labs board member, kicks off Linux Weekend 2017

From March 25-26, 2017 in Tirana, Albania, nearly 130 people attended the first-ever Linux Weekend 2017. Linux Weekend was organized by Open Labs Hackerspace at the Universiteti Politeknik i Tiranës as an introduction to Linux for beginners. Throughout Tirana, universities have a strong focus on Windows or macOS operating systems and little focus is given to Linux. Open Labs community members wanted to organize an event that would promote Linux as an open source alternative and demonstrate some of its benefits over proprietary environments. The event collected representatives from various communities, including Fedora, Ubuntu, OpenSUSE, NextCloud, MusicBrainz, and more.

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Netflix and Linux: The First 60 Seconds

Netflix and Linux, friends at last

Netflix and Linux may not agree on the desktop, but they do in the cloud. Source: blockless.com

Netflix, Linux, and 60 seconds

While they have their differences on the desktop, there is one place where Netflix and Linux get along beautifully: the cloud. Netflix system administrator Brendan Gregg recently published an article on the Netflix blog about what their administrators do in the first 60 seconds when analyzing performance. You should give it a read!

Year of the Linux Desktop: Flock 2015 Summary

Flock to Fedora 2015 was a conference full of incredible people with incredible ideas, and it was a tough decision to decide which sessions to attend of all the good options. One that caught my eye was the “When is the year of the Linux desktop?” talk by Red Hat software engineering intern Levente Kurusa. Some of the key talking points of his session were evaluating why this statement always seems to be “next year” and why this awesome idea never seems to gain much ground. Are we doing something wrong? Can we improve somewhere? All of this, and more, Levente aimed to cover in his talk. I was fortunate enough to be in attendance of this talk!

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