Marc Joos

Having the flops doesn't mean you can use them with your code. Using them doesn't mean your algo & science is solid. Using them w/ solid algo/physics doesn't mean you can efficiently analyze the data. Analyzing the data doesn't mean you have a profound understanding of the problem you study...

And there are already real-life examples where the efficiency of AI exceeds by far the classical approach one, for both power and accuracy. One of my favourite examples for the past couple of years has been FourCastNet (docs.nvidia.com/deeplearning...); this kind of achievement is amazing

💥Spack v1.0 is out!💥

This is a huge milestone. We reworked the core to add compiler dependencies, and we're introducing a stable package API.

🚀1.0 also adds concurrent builds, better includes, and much more -- read it all in the release notes!

github.com/spack/spack/...

It's not that surprising as -- at least in Europe -- lots of AI factories are actually pre-exascale and exascale EuroHPC systems.

HPC Finally Found Its Killer App – Can It Survive? Where We Are: On June 3, Intersect360 Research released our most recent market numbers for the HPC market. At the top level, things look great. We found a 24.1% growth […]

"HPC Finally Found Its Killer App -- Can It Survive?" My views in HPCwire.
#HPC #AI
www.hpcwire.com/2025/06/06/h...

🚨 Last call! Our next EUPEX webinar is tomorrow!

Join Aurélien Cedeyn (CEA) as he presents OCEAN, the admin software stack used in production for HPC cluster management.

📅 June 4, 11 AM CEST
🔗 Register: us06web.zoom.us/meeting/regi...

#HPC #Webinar

I worked at the Living Computer Museum from 2014 until it closed due to Covid (and then never reopened because Paul Allen did a shitty job with his estate planning.) It's been a bit over 5 years since the museum closed to the public and I thought I'd share some pictures I took around that time.

And being maybe too optimistic and excited about the future, I'd like to gamble on quantum computing. But more realistically that might be the next-next 10x 😁

Focusing on raw performance of apps, I'd go for AI impact: there is a tremendous potential with PINNs and the likes, and the way it revolutionised weather forecasts for example is just the beginning. And there's also more than promising things with accurate subgrid modeling with AI.

I'd go with better usability, because if you build big systems but don't care about services you provide for the users to make the best of it, you've lost. It's kind of the human factor in the equation. Incidentally, I/O & SW stack have an impact on usability.

The same post skeeted twice by two different users who are suspiciously similar

BlueSky: Attack of the Clones

The one with Jango Fett was more entertaining!

Quite some work was done on the doc to ease the use of the library and broaden its user base.
You want to run containers at scale with no hassle? You have a legacy code & want to switch MPI? You want to debug or assess perf easily? Wi4MPI might be for you!

wi4mpi.readthedocs.io/en/latest/us...

GitHub - cea-hpc/wi4mpi: Wrapper interface for MPI Wrapper interface for MPI. Contribute to cea-hpc/wi4mpi development by creating an account on GitHub.

Today we released the latest version of #Wi4MPI that includes major changes, in particular in the internals of the library. It doesn't change much for the users but it has a huge impact on the flexibility, versatility and robustness of the library.
github.com/cea-hpc/wi4mpi

#HPC #MPI

No hassle & runs everywhere? gfortran
GPU and/or easy profiling for free? nvfortran
Performance on x86? (used to be) ifort
Life has no meaning anymore? ifx
Useful listings for code analysis? xlf
I still have to try flang (ex flang-new) to have a definitive opinion about it!

Le @cea.fr fait ça avec ses supercalculateurs depuis quelques temps déjà (et il faut aussi noter que l'efficacité énergétique des supercalculateurs (mesurée avec le PUE, combien de Watt faut-il pour un Watt de calcul) est meilleur que pour les data centers classiques)

www.cea.fr/Documents/in...

Qarnot - Qarnot More IT, less energy, less carbon

Ce projet existe depuis un moment et il est toujours là, c'est la société Qarnot qui fait ça :
qarnot.com/fr

🚨 Last call! Our next EUPEX webinar is tomorrow!

Join Aurélien Cedeyn (CEA) as he presents OCEAN, the admin software stack used in production for HPC cluster management.

📅 April 9, 11 AM CEST
🔗 Register: us06web.zoom.us/meeting/regi...

#HPC #Webinar

EasyBuild now has a blog!

blog.easybuild.io

First post is a report on the 10th EasyBuild User Meeting (EUM'25) -> blog.easybuild.io/2025/03/28/e...

#HPC

If you are interested in running #HPC apps in cloud with #Kubernetes "Trends for Pulling HPC Containers in Cloud" - a look at the ecosystem since 2014 and a robust pulling study - is published this week at Cloud Computing 2025. It is work driven by my love and curiosity of container technologies. ❤️

Kicking off day two of the 10th EasyBuild User Meeting at Jülich Supercomputing Centre (JSC) with a keynote by Jeff Hammond (NVIDIA)

Live stream via www.youtube.com/watch?v=2-4p...
Slides will be made available via easybuild.io/eum25/#program

@fzj-jsc.bsky.social #HPC

Very nice to see French #QuantumComputing companies (Pasqal and Alice & Bob) on stage at #GTC25, we do indeed have a very exciting quantum ecosystem here!
And if you're an EU researcher, a Pasqal QPU will soon be available at @cea.fr TGCC!

That's big news for France as the AI2F consortium is one of the #AIFactories selected. It strengthens the AI dimension of Alice Recoque, the EuroHPC exascale system deployed in France at @cea.fr, and it will help to foster & support an already very lively AI ecosystem in France
#HPC #AI #Europe

The recorded video of our talk at FOSDEM25 is available: fosdem.org/2025/schedul...
Many thanks again to @marcjoos.bsky.social who did an excellent job presenting the talk and answering questions.

I wrote a little text to accompany this slide. It sums up the hour-long presentation in just a few words.

www.glennklockwood.com/garden/diffe...

#HPC #AI

If you actively use or contribute to EasyBuild, please participate in the 8th EasyBuild User Survey:

ugent.qualtrics.com/jfe/form/SV_...

Help us reach our goal of at least 100 participants by the end of the month!

#HPC

clustershell bash completion (v1.9.3) This short recording demonstrates the bash completion feature available in ClusterShell 1.9.3, showcasing its benefits when using the clush and cluset command-line tools.

ClusterShell 1.9.3 is now available in EPEL and Debian. Not using clustershell groups on your #HPC cluster yet?! Check out the new bash completion feature! Demo recorded on Sherlock at @stanford-rc.bsky.social with ~1,900 compute nodes and many group sources!

asciinema.org/a/699526

Lmod is getting a shoutout during the talk on Environment Modules (@envmodules.bsky.social) at the 10th #HPC, Big Data, and Data Science.

There’s no rivalry between “competing” FOSS projects at #FOSDEM, only mutual respect and exchange of ideas!

We are accepting mini-donations for HPC.social in the 10th #HPC, Big Data, and Data Science devroom at #FOSDEM25.

I’ll pool these together and donate it all in one go right after FOSDEM, pinky swear!

You can also donate directly yourself, see github.com/sponsors/hpc...

FOSDEM 2025 - HPC, Big Data & Data Science

EESSI will be featured in two back-to-back talks today at 12:30 in the #HPC devroom at #FOSDEM25.

Thomas Röblitz (UBergen) will talk about RSM on top of EESSI, Henrik Nortamo (CSC.fi) presenting the EuroHPC Federation Platform, in which EESSI will be integrated.

fosdem.org/2025/schedul...

Looks like U building basement, I got lost there in the past 😅