#isc25 — Public Fediverse posts

What an amazing exhibition experience last week was! 😀 ISC High Performance was an adventure, and we are delighted that we were able to welcome visitors not only at our joint GCS stand, but also at our⚡JUPITER booth. 💪 Find out all about our experiences, activities and successes right here: https://www.fz-juelich.de/en/ias/jsc/news/news-items/news-flashes/2025/isc25-action-packed-days-dedicated-to-jupiter-quantum-power-and-networking
#ISC25! #JUPITER #HPC #Supercomputing #Quantumcomputing #FZJ

The #isc25 is over and I half-recovered from the weekend, too. Time to continue my thread summing up the #SnakemakeHackathon2025 !

To me, an important contribution was from Michael Jahn from the Charpentier Lab: A complete re-design of the workflow catalogue. Have a look: https://snakemake.github.io/snakemake-workflow-catalog/ - findability of ready-to-use workflows has greatly improved! Also, the description on how to contribute is now easy to find.

A detailed description has been published in the #researchequals collection https://www.researchequals.com/collections/hm1w-cg under https://doi.org/10.5281/zenodo.15574642

#Snakemake #ReproducibleComputing #ReproducibleResearch #OpenScience

Returning from the #isc25 I will continue this thread with something applicable everywhere, not just on #HPC clusters:

Workflow runs can crash. There are a number of possible reasons. Snakemake offers a `--rerun-incomple` flag (or short `--ri`) which lets a user resume a workflow.

This contribution from Filipe G. Viera describes a small fix to stabilize the feature. Not only will incomplete files be removed after a crash, now it is ensured that all metadata with them are deleted too, before resuming: https://zenodo.org/records/15490098

#Snakemake #SnakemakeHackathon2025 #ReproducibleComputing #OpenScience

Waiting for my train and going through slides of a BOF from the #isc25 . Apparently, students prefer tutored online courses.

I as a lecturer always prefer onsite courses. Spiced with lots of exercises. Such that I get an immediate impression of proceedings and reception of the material.

Yes, I understand the need-to-travel overhead when living in somewhat remote areas. On the other hand: All those demanding online or even hybrid courses - have you considered that the average participant might learn less? The literature supporting online courses at least is rather underwhelming.

Plus, actually meeting people is way better than chatting online. Same with conferences. I just me people from @SURF and other places whom I only met online before. Such a difference!

Then again, I only travel by train - which cannot expected by everyone ...

#online vs. #onsite #teaching #conferences #AcademicChatter

👩‍💻 PPP 01: First Workshop on the Pain of #ParallelProgramming
Application people share their pain in programming parallel systems with people working on frameworks and models. The goal is to gain insights and find solutions to alleviate the pain.
#ISC25
https://isc.app.swapcard.com/widget/event/isc-high-performance-2025/planning/UGxhbm5pbmdfMjU4MTc1OA

👩‍💻 PPP 01: First Workshop on the Pain of #ParallelProgramming
Application people share their pain in programming parallel systems with people working on frameworks and models. The goal is to gain insights and find solutions to alleviate the pain.
#ISC25
https://isc.app.swapcard.com/widget/event/isc-high-performance-2025/planning/UGxhbm5pbmdfMjU4MTc1OA

👩‍💻 PPP 01: First Workshop on the Pain of #ParallelProgramming
Application people share their pain in programming parallel systems with people working on frameworks and models. The goal is to gain insights and find solutions to alleviate the pain.
#ISC25
https://isc.app.swapcard.com/widget/event/isc-high-performance-2025/planning/UGxhbm5pbmdfMjU4MTc1OA

👩‍💻 PPP 01: First Workshop on the Pain of #ParallelProgramming
Application people share their pain in programming parallel systems with people working on frameworks and models. The goal is to gain insights and find solutions to alleviate the pain.
#ISC25
https://isc.app.swapcard.com/widget/event/isc-high-performance-2025/planning/UGxhbm5pbmdfMjU4MTc1OA

We will participate in a variety of exciting events on the last day of #ISC25, Friday, June 13 – stop by & join the discussion https://go.fzj.de/isc25
Workshops, talks & tutorials on #EdgeAI🤖, #Benchmarking📏, #ParallelProgramming👩‍💻, #GPUProgramming, & the future of #Exascale⚡.

We will participate in a variety of exciting events on the last day of #ISC25, Friday, June 13 – stop by & join the discussion https://go.fzj.de/isc25
Workshops, talks & tutorials on #EdgeAI🤖, #Benchmarking📏, #ParallelProgramming👩‍💻, #GPUProgramming, & the future of #Exascale⚡.

We will participate in a variety of exciting events on the last day of #ISC25, Friday, June 13 – stop by & join the discussion https://go.fzj.de/isc25
Workshops, talks & tutorials on #EdgeAI🤖, #Benchmarking📏, #ParallelProgramming👩‍💻, #GPUProgramming, & the future of #Exascale⚡.

We will participate in a variety of exciting events on the last day of #ISC25, Friday, June 13 – stop by & join the discussion https://go.fzj.de/isc25
Workshops, talks & tutorials on #EdgeAI🤖, #Benchmarking📏, #ParallelProgramming👩‍💻, #GPUProgramming, & the future of #Exascale⚡.

Auch das dürfte ein Thema sein bei der #ISC25 : die digitale Souveränität Europas angesichts der Lage in den #usa . Der offene Webindex #owi den @openwebsearcheu geschaffen hat und der seit 6. Juni eingesetzt wird, ist ein Schritt. Wie das LRZ hat das @CERN an dem Werk, die Grundlage für neue Suchdienste mitgearbeitet. Es beschreibt, was der OWI kann. Die @osf hat uns auf den Artikel aufmerksam gemacht. Dankeschön: https://tiny.badw.de/2JwzCg

#forschung #wissenschaft

@openscience @opensource

📸 Full house at the OpenMP BOF at #ISC25 — over 140 attendees joined us in Hamburg! 🎉

Our session "What to Expect from OpenMP API Version 6.0" covered:

✅ A dive into key features of OpenMP 6.0
✅ A preview of 6.1 and 7.0
✅ Updates from toolchain developers
✅ Lively Q&A to help shape future OpenMP directions

Thanks to everyone who contributed — your feedback is powering the future of parallel programming! 💡

#OpenMP #HPC #ISC2025 #OpenMP6 #ParallelComputing #Supercomputing

At the start of #ISC25 in #hamburg our colleagues Burak Mete, Jorge Echavarria and Xialong Deng, feel honored. Together with colleagues from the TUM, they have just been awarded the Hans Meuer Prize for their work: they further developed #SysSage for #supercomputers in which quantum systems operate. Sys-Sage is an component of programming environments and will therefore become part of the Munich #Quantum #softwarestack
Their award-winning paper can be found here: https://ieeexplore.ieee.org/document/11017506

Today tooting from the #ISC25 - the International Supercomputing Conference. What better opportunity to brag about something I've done to facilitate using GPUs with Snakemake?

Here is my contribution, simpler job configuration for GPU jobs:

https://doi.org/10.5281/zenodo.15551797

Not alone though: Without valuable input of @dryak . Without him, I would have overlooked something crucial.

And when we talk about reproducible AI, my take is that we ought to consider workflow managers, too. Something which protocols what you have done with little effort.

#SnakemakeHackathon2025 #Snakemake #ReproducibleComputing #OpenScience

#JUPITER ranks fourth in the Top500 list and is Europe's fastest supercomputer. This was announced at the #ISC25 in Hamburg today. The "newcomer" is also the most energy-efficient system in the top 5 of the list. JUPITER was developed by the #JSC and built at the Forschungszentrum Jülich over the past few months. JUPITER is certain to break the “ExaFLOP/s” barrier soon, propelling Europe into the exascale era. More in the press release issued by #FZJ: https://buff.ly/pcrN6kx

This morning, I am travelling to the #isc25 and hit a minor bug on #researchequals. Hence, no updates in the collection.

But still a few to describe without adding the latest contributions:

For instance, this one (https://zenodo.org/records/15490064) by Filipe G. Vieira: a helper function to extract checksums from files to compare with checksums Snakemake was already able to calculate. Really handy!

#Snakemake #ReproducibleComputing #OpenScience

By becoming the fastest #supercomputer in Europe JUPITER propels European Computing Power. #exa_JUPITER, developed by @fzj_jsc and owned by #EuroHPC JU, ranks 4th on the June 2025 #TOP500 list of the world’s fastest supercomputers and stands as the most energy-efficient system of the top 5 of the listing, which was presented today at the International Supercomputing Conference #ISC25. https://www.fz-juelich.de/en/news/archive/press-release/2025/jupiter-supercomputer-propels-european-computing-power

Half of the #Top10 systems on the latest #Top500 are from Europe Strategic investments by @eurohpc-ju.bsky.social, aided with China's reluctance to submit to this list #ISC25 #HPC #AI

#Top500: Vendors o Lenovo edges HPE in # of systems 135 to 132 o HPE has the biggest performance share by a huge margin o Atos/Eviden is #3 in both #ISC25 #HPC #AI

#Top500: China declines to participate and slowly drops in the list as no new Chinese #supercomputers are added 1. USA 173 2. China 46 3. Germany 43 #ISC25 #HPC #AI

#Top500: Interconnect in Top10 systems o 7 systems use Cray's Slingshot (El Capitan, Frontier, Aurora, HPC6, Alps, LUMI, JUPITER Booster) o 2 systems use Infiniband (Eagle, Leonardo) o Fugaku retains its proprietary Tofu interconnect #ISC25 #HPC #AI

#Top500: CPU in Top10 systems o 5 systems use AMD processors (El Capitan, Frontier, HPC6, LUMI, Alps) o 3 systems use Intel (Aurora, Eagle, Leonardo) o JUPITER Booster relies on a Grace Hopper Superchip o Fugaku uses a proprietary ARM-based Fujitsu A64FX #ISC25 #HPC #AI

See the full #Top500 list at: top500.org Press Release: top500.org/news/el-capi... #HPC #AI #ISC25

65th #Top500 is out! o The Top 3 #Exascale systems remain unchanged: #1 El Capitan #2 Frontier #3 Aurora o JUPITER Booster (EuroHPC planned #Exascale system currently being commissioned – hence partial system) at FZH in Germany at #4 is the only new system in the #Top10 #HPC #AI #ISC25

🔷 Join us at the OpenMP BOF at ISC 2025 tomorrow!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

Title: What to Expect from OpenMP 6.0

Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!

https://isc-hpc.com/program/schedule

#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at the OpenMP BOF at ISC 2025 tomorrow!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

Title: What to Expect from OpenMP 6.0

Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!

https://isc-hpc.com/program/schedule

#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at the OpenMP BOF at ISC 2025 tomorrow!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

Title: What to Expect from OpenMP 6.0

Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!

https://isc-hpc.com/program/schedule

#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at the OpenMP BOF at ISC 2025 tomorrow!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

Title: What to Expect from OpenMP 6.0

Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!

https://isc-hpc.com/program/schedule

#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at the OpenMP BOF at ISC 2025 tomorrow!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

Title: What to Expect from OpenMP 6.0

Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!

https://isc-hpc.com/program/schedule

#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

Join us at #ISC25 for the tutorial “Advanced OpenMP: Performance and 6.0 Features” on Friday, June 13, 9:00–13:00 CEST in Hall Y12, 2nd Floor, Hamburg Congress Center.

Learn how to boost OpenMP code performance on NUMA systems and accelerators, and get hands-on insights into vectorization, data locality, and the latest features in OpenMP 6.0.

Ideal for developers who want to go beyond the basics!

#HPC #OpenMP #ISC2025 #ParallelComputing

Meet our experts at #ISC25
Stefan Krieg is a physicist who enjoys #Simulating #QuantumSystems. He would love to chat with you about your research! He heads JSC’s division HPC for Quantum Systems and teaches physics at Bonn University. https://isc.app.swapcard.com/widget/event/isc-high-performance-2025/person/RXZlbnRQZW9wbGVfMzgwMTgxMjg=

Meet our experts at #ISC25
Andreas Hoffmann is responsible for communication & knowledge transfer for national projects that utilize supercomputing resources at JSC. He also manages the training course portfolio for JSC's supercomputers. At ISC, he helps run the GCS booth #K02.

🔷 Join us at ISC 2025!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

BOF: What to Expect from OpenMP 6.0
Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!
#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at ISC 2025!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

BOF: What to Expect from OpenMP 6.0
Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!
#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at ISC 2025!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

BOF: What to Expect from OpenMP 6.0
Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!
#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

🔷 Join us at ISC 2025!
📅 June 10 | 🕐 13:00–14:00 | 📍 Hall F, 2nd Floor

BOF: What to Expect from OpenMP 6.0
Explore new features in OpenMP 6.0 for threads, tasks, and accelerators. Get insights on what's coming in versions 6.1 and 7.0, hear from ARB experts and toolchain implementers, and join a lively Q&A.

Shape the future of OpenMP!
#OpenMP #ISC25 #HPC #ParallelProgramming #OpenMP6

At #ISC25 in Hamburg, 10-13 June, JSC will organise and participate in numerous #Talks, #Tutorials, #BoFs and #Workshops. 🎤📚 Visit our website for a complete list of all our events including dates, times and locations: https://go.fzj.de/isc25

At #ISC25 in Hamburg, 10-13 June, JSC will organise and participate in numerous #Talks, #Tutorials, #BoFs and #Workshops. 🎤📚 Visit our website for a complete list of all our events including dates, times and locations: https://go.fzj.de/isc25

At #ISC25 in Hamburg, 10-13 June, JSC will organise and participate in numerous #Talks, #Tutorials, #BoFs and #Workshops. 🎤📚 Visit our website for a complete list of all our events including dates, times and locations: https://go.fzj.de/isc25

At #ISC25 in Hamburg, 10-13 June, JSC will organise and participate in numerous #Talks, #Tutorials, #BoFs and #Workshops. 🎤📚 Visit our website for a complete list of all our events including dates, times and locations: https://go.fzj.de/isc25

At #ISC25 in Hamburg, 10-13 June, JSC will organise and participate in numerous #Talks, #Tutorials, #BoFs and #Workshops. 🎤📚 Visit our website for a complete list of all our events including dates, times and locations: https://go.fzj.de/isc25

Next week is #ISC25 in Hamburg. When I'm not going to vendor meetings, staff #JSC/#JUPITER/project booths, or attend the technical program, I’ll have these contributions:
- Wed: NHR booth; Sofa Talk about GPU benchmarking
- Thu: EuroHPC booth; Talk about JUPITER
- Fri: Future of Benchmarks workshop; Talk about JUPITER benchmarks and future
- Fri: HPC on Heterogeneous Hardware workshop; Talk about Exascale in Europe
- Fri: Hosting the Distributed GPU Tutorial

[See: https://isc.app.swapcard.com/event/isc-high-performance-2025/person/RXZlbnRQZW9wbGVfMzc5MzAzOTI=] #HPC

I will be at #ISC25 this year - my first #ISChpc for a few years. So far I have a much more open schedule than typically for SC, so reach out if you want to meet up and we can see what works.

#HPC #AI #cloud #Top500 #supercomputers

Two more days to submit your #researchpaper to #ISC25!

RE: https://bsky.app/profile/did:plc:al6z7migwh2blrr6e6zst7qz/post/3lcl4tyig222m

Today on #DeveloperStories we talk to Michela Taufer - Dongarra Professor of #HPC at the University of Tennessee, head of The Global Computing Laboratory and prominent voice for #ISC25. We hope you enjoy!

🥑 Apple https://podcasts.apple.com/us/podcast/the-impact-graph/id1481504497?i=1000674291348
🥑 Spotify https://open.spotify.com/episode/2k2RNBHEUYYDUiMqgFKOlc?si=PKCbgQCuQa6HW0nPfYlnGQ
🥑 https://rseng.github.io/devstories/2024/michela-taufer/