iiinova — where your digital self keeps evolving

Andreas Herten @andih.mastodon.social.ap.brid.gy · 29/06/2026

We’ve launched the Call for Papers for the #SC26 HPCTESTS workshop: olcf.github.io/hpc-system-test-wg/h… If you have cool research related to HPC system testing/benchmarking, we are happy to host you in Chicago. Deadline is 3 August. #HPC #HPCTESTS

olcf.github.io

HPCTESTS 2026

hosted by HPC System Test Working Group collaboration

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 25/06/2026

Sitting through talks at a large conference, I am pretty annoyed by AI text in slides, be it AI-generated content or (maybe worse) AI lingo creeping into human-generated content. „It’s not just <something>, it‘s a revolution of <something>“; „Why this is important“; headlines with „the“; etc […]

mastodon.social

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 10/06/2026

Attended my first @EuroHPC_JU RIAG meeting this week. Exciting! #HPC

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 06/06/2026

In this work, doi.org/10.1063/5.0334617, we worked together with computational material/chemistry researchers within a nationally funded project (MExMeMo) and optimized their two applications. Also, we coupled both apps together to collaboratively simulate with different methods, using […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 30/05/2026

Our simulation of a universal quantum computer with 50 qubits got published: www.sciencedirect.com/science/artic…. We used 4096 #JUPITER nodes for it, mostly for the memory – because of the Grace-Hopper superchipiness we could also use CPU RAM well. The algorithm […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 15/05/2026

Moved my Home Assistant installation finally from a Raspberry Pi 4B to a small Intel box (J5005 CPU), since 32 bit ARM is not supported anymore. The main parts were already entirely using Docker, and after also moving other host-side remnants (SSH keys) or replacing them with HA-confined […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 09/05/2026

@supergarv @dirk bei mir ist es was mehr als Stockholm. Mir gefällst 🙂

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 09/05/2026

@supergarv ich finde es immer noch gut. Gibt (und gab) immer bessere und schlechtere Seitenarme der Story, aber mir gefällt. Und IMHO wird es besser, wenn der letzte vom Altcast weg ist.

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 21/04/2026

Why do so few fellow TeXnicians use \autoref{}? It’s so good! #LaTeX #hyperref

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 05/01/2026

Not sure I even have German followers here, but: Zusammen mit @bne86 habe in einem Podcast über #JUPITER berichtet: codeforthought.buzzsprout.com/13266… (Follow-Up-Fragen beantworte ich gerne, z.B […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 17/11/2025

Finally, #JUPITER crossed the 1 ExaFLOP/s threshold today. The list is lying to you, though, it's not like it's 1000 PFLOP/s exactly, it's 1000.184 PFLOP/s; the rest got lost to rounding. The 184 TFLOP/s are pretty much exactly the same as the previous #JSC […] [Original post on mastodon.social]

Output from the golden HPL run, which show 43.6 GFLOP/s as the per-GPU performance

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 16/11/2025

Has anyone already determined the average coffee density at #SC25? Need to normalize to ICS* to align my coffee intake. #HPC** *: International Coffee Standard **: The C is for Coffee, of course

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 13/11/2025

@glennklockwood It slightly incentivizes on the wrong thing, though. In terms of power-per-compute ratio, you can get these sweet Watts most efficiently by making a rack of hairdryers. 28 x 2 kW = 56 kW needed for an adder! Instant Gigascale! But at least Watts are easily understandable by […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 12/11/2025

There a nonsensical performance metrics in computing – and then there’s “Gigawatts of Compute”. #HPC

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 10/11/2025

My #SC25 is quite busy again this year. When I'm not contributing (see below), visiting vendors, or staffing our @fzj_jsc booth, I try to see as many sessions as possible (why are there so many interesting talks? And all at the same time!). Contributions: - Sunday: Multi-GPU Tutorial - Monday […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 02/08/2025

The good thing about generating tables and data in papers from machine-readable raw data is you can flexibly generate new stuff with different styles. The bad thing about generating tables and data from raw data is … options! So many! (And complexity… revisiting the scripts for a paper revision […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 28/07/2025

We’ve extended the deadline for HPCTESTS until 7 Aug! #SC25

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 28/07/2025

How about writing up something cool about testing #HPC systems? Or some exciting accelerator analysis? We’ve just extended the deadline for submission to the #WACCPD workshop at #SC25. And #HPCTESTS is also still open. Both close on Friday, EOD! Links: - WACCPD CfP […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 13/06/2025

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 😊.

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 10/06/2025

JUPITER is in the TOP500! We didn’t manage to beat the exascale barrier just yet, but did pretty good in the timeframe! Happy to chat about #JUPITER in the dedicated booth later! #HPC #Exa_JUPITER

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 05/06/2025

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 […]

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 03/06/2025

Migrated my #ZFS pool to a new machine and then replaced the drives with new ones, autoexpanding to the drives‘ new sizes. Worked like a charm. Magic!

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 20/04/2025

Personal achievement: came back the nearly 700 km route from Easter vacation with only 2 charging stops. #EV (I’m still pretty surprised how bad the car‘s route/distance planning is. The first stop was to be reached with 1% SoC left when we put the stop in; when we reached it, SoC was 10%.)

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Andreas Herten @andih.mastodon.social.ap.brid.gy · 02/04/2025

Finally deleted all my tweets over at the other network. 💪

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