My keynote talk at #IXPUG #ISC25 is finally online! 🖖🤠
GigaScale #FluidX3D #CFD Simulations from Communication and IO Perspective
https://www.youtube.com/watch?v=uAIkpcX5EFc&list=PLA-vfTt7YHI2HEFrpzPhhQ8PhiztKhHU8
Keynote Talk: GigaScale FluidX3D CFD Simulations from Communication and IO Perspective

YouTube
#ISC25 Interview: What Keeps Satoshi Matsuoka Up at Night? www.hpcwire.com/2025/07/18/i... #HPC #AI

ISC 2025 Interview: What Keeps...

Scott Atchley, who co-keynoted #ISC25, posted a really meaningful response to my ISC25 recap blog post on LinkedIn (https://www.linkedin.com/posts/scottatchley_isc25-olcf-frontier-activity-7345786995765395457-lGoq). He specifically offered additional perspective on the 20 MW exascale milestone and the pitfalls of Ozaki. It's short but very valuable context.

#HPC

I always enjoy reading Glenn K. | Scott Atchley

I always enjoy reading Glenn K. Lockwood's conference recaps with #ISC25 recap being his latest. First, I was honored that AMD's Mark Papermaster invited me to share some science highlights from OLCF's Frontier. I shared that Frontier has grown slightly in the last year with the integration of the test and development system into the full system. My science highlights included: • GE Aerospace's efforts to reduce noise generated by their RISE engine that will allow GE Aero to bring it to market sooner, • NASA's work to understand how to use retro-propulsion to land humans and their gear on Mars, • Researchers refining the phase diagram for carbon by identifying the narrow region in pressure and temperature that would allow body-centric cubic (BC8) carbon to exist. This material is expected to be 30% harder than diamond, and • Efforts to understand how drug candidates interact with proteins. Unlike AI efforts such as AlphaFold that approximate protein docking, this effort uses Molecular Dynamics to got the two items close together then it switches to quantum mechanics to get an exact docking. This application actually used over 1 exaflop (1 EF) of full precision (FP64) on Frontier. I also highlighted what Frontier's replacement, Discovery, will need to support modeling/simulation as well as artificial intelligence. It will need bandwidth everywhere from processors to scale-up bandwidth between processors to scale-out bandwidth across the whole system in addition to lots of high-precision and low-precision FLOPS. I will reply with more comments. 🧵 #OLCF #Frontier

Looking at the Top500 list from #ISC25, it looks like JUPITER ran HPL with 5,884 nodes--perhaps the full system (advertised as "roughly 6,000" nodes).The run only hit ~33 TF/H200 tho; by comparison, Isambard-AI hit 43 TF/H200. If JUPITER can get up to 43 TF/GPU, it should post at 1.01 EF FP64. #HPC

For most that missed the #ISC25 Flux Framework Tutorial, we just posted our slides online:

https://github.com/flux-framework/Tutorials/blob/master/2025-ISC-AWS/Flux-ISC-2025.pdf

Thank you to those that attended, and see you next time! 👋

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
ISC25: Action-packed days dedicated to JUPITER, quantum power, and networking

Successful exhibition performance by JSC at ISC25 with JUPITER and GCS booths

Our reflections from #ISC25 are live.

From standout sessions to big-picture trends and community moments (including our Roco casting a few spells), we’ve pulled together the key takeaways from Hamburg in our latest blog by Muneeb Khan, Senior HPC Managed Services Specialist.

📬 Read here: https://www.redoakconsulting.co.uk/blog/postcards-from-isc-2025/

#ISC#HPC #Supercomputing

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

Snakemake workflow catalog

Wir sind noch ganz im Zeichen der #ISC25 und haben diesen Artikel über die Entwicklung von Rechenkraft gefunden: Selbst mit Beschleunigern und anderen Acceleratoren ist das #MoorschesGesetz nicht mehr zu schaffen. Bis vor einigen Jahren konnte Rechenkraft noch in etwa zwei Jahren verdoppelt werden. Die Architektur fürs Supercomputing muss auch für eine nachhaltige Energienutzung komplexer, heterogener geplant werden. https://www.nextplatform.com/2025/06/10/top500-supers-even-accelerators-cant-bend-performance-up-to-the-moores-law-line/

#IT4Science

I ended up presenting five distinct slidedecks at #ISC25. If I find time, about what should I blog?
Here are title slides. Luckily, I needed to use PowerPoint only once 😊.