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#isc25

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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: fz-juelich.de/en/ias/jsc/news/
#ISC25! #JUPITER #HPC #Supercomputing #Quantumcomputing #FZJ

www.fz-juelich.de · ISC25: Action-packed days dedicated to JUPITER, quantum power, and networkingSuccessful exhibition performance by JSC at ISC25 with JUPITER and GCS booths
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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: snakemake.github.io/snakemake- - 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 researchequals.com/collections under doi.org/10.5281/zenodo.1557464

snakemake.github.ioSnakemake workflow catalog | Snakemake worklow catalog
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Interesting take from an #Nvidia engineer I met at #ISC25: "Do you need IEEE-754 compliant #FP64, or do you need digits? Digits we can get you through FP64 emulation."

Not sure what to make of that. Things were an absolute mess before the IEEE-754 standard, and I wouldn't want to ever go back to that. No standards means you cannot at all port software between hardware architectures even from within the same vendor. Having to re-architect software for each and every new chip is not gonna happen.

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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: zenodo.org/records/15490098

ZenodoMetadata Cleanup for Snakemake

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

Remember the #blockchain hype? Enormous potential! Right? Every “expert politician” knew about it. Right?

And now? #AI Here, at the #isc25, lots of vendors are exclusively focussed on AI. Now, AI in research is different to the blockchain hype. Still, there clearly is hype, too.

And I wonder what will be established and recognized by a wider community when the hype is over. Protein structure prediction, perhaps neoepitope prediction, some clinical diagnostics support, event selection in collider physics, etc.?

And where will we agree that some path we followed was completely foolish?

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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 (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!

ZenodoExtra Input Helper Functions for SnakemakeThis Snakemake Hackathon Contribution adds several helper functions to infer file sizes and adds functions to calculate hash sums or return a file's content through a callable.

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. fz-juelich.de/en/news/archive/