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Posts by Torsten Hoefler 🇨🇭

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Are you also frantically working on your submission to Supercomputing #SC26? Make sure to follow the scientific benchmarking guidelines to ensure interpretability and good style.

Don't miss any of the 12 rules for #HPC and #AI systems benchmarking.

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3 weeks ago 4 1 0 0
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We are happy to welcome Jianyang Gao, a new Postdoc at #SPCL and look forward to our collaboration!🚀

#HPC @thoefler.bsky.social @csateth.bsky.social

4 weeks ago 1 2 0 0
ADIA Lab Summer School 2024: "Trustworthy, safe, and governable AI”, University of Granada, Spain
ADIA Lab Summer School 2024: "Trustworthy, safe, and governable AI”, University of Granada, Spain

Join us at ADIA Lab's Summer School on Responsible #AI in Granada.

A unique opportunity to learn, network, and form connections for life.

Apply by March 17!

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1 month ago 0 0 0 0
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Was nice attending Koc University's #AI Symposium this week - thanks for having me!

Lots of opportunity to connect and meet old and new friends while catching up with Didem Unat and her group on emerging #HPC and #AI systems research.

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1 month ago 3 1 0 0
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CrossPipe: Towards Optimal Pipeline Schedules for Cross-Datacenter Training Training large language models (LLMs) now requires resources that exceed a single datacenter, making cross-datacenter strategies increasingly crucial. We present CrossPipe, a framework designed to opt...

It actually really isn't: arxiv.org/abs/2507.00217 :-)

1 month ago 1 1 0 0
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"Shock! Shock!" is how the "Father of the Analysis of Algorithms" Don Knuth described an interaction with Claude, proving an open problem he worked on for weeks

#HPC and #AI compute enables the unthinkable and begins to automate the scientific method and human (?) progress 🚀

Full buff.ly/olgx1sX

1 month ago 6 1 0 1
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Congratulations to Marcin Chrapek for his successful PhD defense 🎓️. SPCL's 15th doctoral graduate released into the wild to do all kinds of good.

Study his papers to learn about confidential #HPC and secure #AI systems!

Thanks to all committee members for their insightful comments and presence.

1 month ago 4 0 0 0
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Last reminder 🚨 . Only two days left to nominate your favorite young researcher in #HPC for the Jack Dongarra early career award!

One of the highest awards for young researchers in the field on honor of our dear friend Jack 🎓️.

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1 month ago 2 2 0 0
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Thanks Philipp for another proud advisor moment! The committee explicitly highlighted the well delivered defense - congratulations 🎉.

SPCL's 14th PhD graduate released to the wild to make the #HPC and #AI computational world a better/faster/more efficient place.

2 months ago 0 0 0 0
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It's always exciting when research topics receive attention on national TV. CNA, one of Asia's premier TV stations reports on Singapore's $1bn AI for Science and highlights our AI for Health collaboration with Ben Helgason and Bryan Tan, part of my AI Visiting Professorship!

Watch: buff.ly/28Ck77Q

2 months ago 3 0 0 0
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ADIA Lab - Senior Computational Scientist - Material Sciences - Abu Dhabi Investment Authority ADIA Lab, an independent research institution based in Abu Dhabi specializing in data and computational sciences, is seeking a Senior Computational Scientist with a focus on Material Sciences. This…

🔬⚙️ Big opportunity in materials science + #HPC at ADIA Lab — ideal for experts advancing computational materials research, high‑performance simulations, and data‑driven discovery.

Explore the role: buff.ly/dMvhjKL

Horst Simon, Amelie Koch, and the whole ADIA Lab team are great.

A unique chance!

2 months ago 0 0 0 0

I'll be there as well :-)

2 months ago 1 1 0 0
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Rio Yokota on the #SCA2026 fishbowl panel: "I don't think humans are in any way more trustworthy than an advanced AI" - "In the same way we trust other humans, we could develop trust to AIs" - "If people or AI generate code - how do we know there is no bug inside?" profound thoughts by a wise man.

2 months ago 1 1 0 0

Yes, good point, need to fix the colors for big screens 😀

2 months ago 1 0 0 0
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Great talk as always by @thoefler.bsky.social - fully of enthusiasm with mix of technical and asides - but we need to have a chat about legibility of your slides! 😁 (Eg red text on green background)

2 months ago 3 1 1 0
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Keynote at #SCAsia / #HPC Asia

@thoefler.bsky.social being introduced by Rio Yokota

#UltraEthernet for Next Generation #AI and #HPC workloads

2 months ago 9 3 1 0
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On the way to SCAsia 2026 in Japan! I'm honored to present the opening keynote to this year's record attendance of more than 2,500 people :-).

I'm thrilled to talk about Ultra Ethernet's technical highlights. Including a bit surprise reveal 🎉!

Looking forward to see many of you in Osaka this week!

2 months ago 1 0 0 0
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Exciting Singapore AI Research Week Gala Dinner. I was honored to spend an insightful evening sitting next to the guest of honor - Josephine Teo, Minister for Digital Development and Information. A remarkable person!

Fun to also meet my AI Visiting Professor partners – Bryan Tan 🏥 and Jingyu Wang 🌏

2 months ago 2 2 0 0
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Our discussion of challenged and opportunities with in-network collective communication for #AI has been featured in IEEE Computer's January issue 📖. Check out page 24ff!

It currently tops the list of trending articles 🚀.

Check it out: buff.ly/sz4yGzk

#HPC #Networking

3 months ago 2 1 0 0
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Job advertisement Faculties

🌍 Shape the future of HPC for Climate Research in Germany!

Uni Hamburg is hiring a director for computing center—advancing large‑scale simulations, data‑intensive workflows, and cutting‑edge infrastructure for climate and earth system science.

Apply 👉 buff.ly/aF6wruR

#HPC #Climate #Supercomputing

3 months ago 4 1 0 0
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AI for Climate Sciences · Luma What would it actually take to build an AI climate scientist? Climate research already relies on large-scale simulations, physical models, and vast…

I'm looking forward to speak about MDDI's #AI for #Climate at next week's Lorong AI meetup in Singapore next Tuesday!

Join us if you are around:

3 months ago 0 0 0 0
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The "best #GYSS25" came to an end. Ideas and experiences are still buzzing in my head 🧠.

Thanks for the great organization!

We had my lecture on the first day and ended on Jack Dongarra's #HPC lecture - #AI and #HPC 🤖 :-)

My talk is already online 🎥: buff.ly/WyToOgm . Jack's will follow soon.

3 months ago 1 0 0 0
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I am honored to be named IAS Lee Kong Chian Distinguished Professor at the Nanyang Technological University (NTU) Singapore and give a public lecture today 03.15 PM - 05.40 PM in SHHK Auditorium (HSS) at NTU.

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I will talk about #AI for #Climate - join us if you're around!

3 months ago 2 0 0 0
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Global Young Scientists Summit The Global Young Scientists Summit in Singapore brings together bright young researchers and top scientific minds from around the world...

I'm very much looking forward to my plenary lecture and fireside chat at the 10th iteration of the famous GYSS summit in Singapore.

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A humbling experience as one of the 21 laureates and 350 attendees. Find me if you're here 😀.

3 months ago 0 0 0 0
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Ultra Ethernet for next-generation AI and HPC workloads Host: Sujata Banerjee Speakers: Torsten Hoefler, Microsoft and ETH Zurich; Abdul Kabbani, Microsoft The Ultra Ethernet Consortium set out to redefine Ethernet-based interconnects for AI and…

Just as we start into the new year, our Ultra Ethernet tutorial with all background exceeds 1,000 views on youtube!

If you prefer reading: buff.ly/Pmq1Xrr

Opened by Saurabh Dighe and featuring Abdul Kabbani on Congestion Control!

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Building future #AI and #HPC #networking!

3 months ago 5 1 0 0
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A special memory of Piz Daint - once Europe's fastest and first large #GPU #supercomputer

After 13 years of service at #ETH #CSCS, it retired from service. Those two blades shall live on as a milestone in Swiss and European history!

Better than spatulas #nvidia? Enjoy the festive season 🎄 #AI #HPC

3 months ago 10 2 0 0
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Switzerland, where you go with your hybrid car by electric train to the mountains 🏔️. Always cool.

Happy holidays! ❄️

3 months ago 2 0 0 0
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With the year slowly winding down, we took a bit of time to get together, celebrate and reflect on the amazing 2025 journey and all the learnings and achievements during our Xmas dinner last Friday.🎄

Happy holidays & 2026, here we come!🚀🥳

#HPC #AI @thoefler.bsky.social @csateth.bsky.social

3 months ago 3 1 0 0
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NVIDIA explains why they used FP8 as a scaling factor in NVFP and not MXFP-style E8M0.

The idea is to preserve the largest value in each block.

buff.ly/SjwVr6w (16:00 ff)

We found this to be very true in a study and managed to recover some MXFP accuracy with micro-rotations: buff.ly/gXaCAhF

3 months ago 4 1 0 0
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Programming modern accelerators uses more and more complex forms of parallelism for example pipelining loading and computing at all levels.

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Check out Tiziano's FBLAS and SMI for some fundamentals behind pipelining in applications and networks!

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4 months ago 3 0 0 0