Andreas Herten

@andih
322 Followers
272 Following
184 Posts
My web is my castle • High-Performance Computing with GPUs at Jülich Supercomputing Centre
Lab Bloghttps://x-dev.pages.jsc.fz-juelich.de/
Personal Websitehttps://www.andreasherten.de
Andreas Herten3d ago
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 alternatives (the wallbox integration now has web API support instead of MQTT), it was pretty smooth. #homeassistant #hass #64bit
Andreas HertenApr 21
Why do so few fellow TeXnicians use \autoref{}? It’s so good! #TeXLaTeX #hyperref
Andreas HertenJan 5
Not sure I even have German followers here, but: Zusammen mit @bne86 habe in einem Podcast über #JUPITER berichtet: https://codeforthought.buzzsprout.com/1326658/episodes/18342781-de-jupiter-hpc-fur-die-wissenschaft-mit-a-herten-und-b-von-st-vieth
(Follow-Up-Fragen beantworte ich gerne, z.B. hier.) #HPC #exa_JUPITER
[DE] Jupiter HPC für die Wissenschaft - mit A Herten und B von St Vieth - Code for Thought

Deutsche Ausgabe: Anfang September 2025 wurde der neue Hochleistungsrechner Jupiter in Betrieb genommen, mit viel Fanfaren und Prominenz. Zurecht, denn Jupiter ist der schnellste Rechner in Europa. Aber wie kriegt man so eine Maschine am Lauf...

Buzzsprout
Andreas HertenNov 17
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 supercomputer JUGENE from 2008. Incredible, that this gets lost in the margins only 17 years later.
https://mastodon.social/deck/@fzj_jsc@social.fz-juelich.de/115566616685186256
#HPC #exa_JUPITER
Andreas HertenNov 16, 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
Andreas HertenNov 12, 2025
There a nonsensical performance metrics in computing – and then there’s “Gigawatts of Compute”. #HPC
Show threadAndreas HertenNov 10, 2025
Here's my user profile in the #SC25 program, in case you want to bookmark sessions: https://sc25.conference-program.com/presenter/?uid=275073
Presenter

Andreas HertenNov 10, 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: WACCPD Workshop
- Tuesday: Gordon Bell Climate Prize Paper (not presenting)
- Wednesday: IXPUG BoF on Perf Portability
- Friday: HPCTESTS Workshop
- More, depending on things…

#HPC #JUPITER #exa_JUPITER

Andreas HertenAug 5, 2025
Spotify → Apple Music
Andreas HertenAug 2, 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 has some overhead.)