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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 · 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 · 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

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 · 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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