Claudia Blaas-Schenner
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claudiablaas.bsky.social
Claudia Blaas-Schenner
@claudiablaas.bsky.social
450 followers 170 following 180 posts
Passionate about Supercomputing / High-Performance Computing (HPC) - doing HPC since more than 30 years and teaching HPC since more than 10 years - grown up as a physicist - comments and opinions are my own - she/her - https://asc.ac.at/training
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claudiablaas.bsky.social
Our Foundations of LLM Mastery course series has started this week with

✨Prompt Engineering Essentials
✨ Retrieval Augmented Generation

Fine-tuning on one(multi) GPU(s) with the 🦙Llamas🦙 will follow in two weeks - there are still a few seats available!

When #AI meets #HPC

@asc.ac.at
#AI:AT
How can you influence LLMs? With increasing complexity, cost, quality: => From your hand-held devices... 1. Prompt Engineering 2. RAG (Retrieval Augmented Generation) 3. Fine-tuning 4. Train from scratch => ... to supercomputers / hyperscalers
November 13, 2025 at 9:45 AM
claudiablaas.bsky.social
This week we've moved parallelism to a new level – our DL course and our OpenMP course were done in parallel – which picture is your favorite?

Next week, we'll start with the November edition of our famous LLM course series – there are still seats available!

When #AI meets #HPC

#AI:AT #ASC
Image from "Introduction to Deep Learning, 3-4 November 2025, online" Image from "Shared-Memory Parallelization with OpenMP, 3-4 November 2025, online"
November 4, 2025 at 2:58 PM
claudiablaas.bsky.social
The new training season has started already a while ago and we've already covered a lot: #HPC Literacy, C++, #AI Hackathon, Trustworthy AI Webinars (in German and English), How to Run AI Workflows in MATLAB, CUDA, Debugging and Optimizing with Linaro Forge... – it's been a busy October here at #ASC.
Promotion image for "ASC-Linux + ASC-Intro, October 2025, online"
November 4, 2025 at 2:31 PM
claudiablaas.bsky.social
Striving for peak performance? Need some help?
🎓 The first autumn training events are online - ASC-Linux, ASC-Intro, C++, CUDA, DL, MPI, and more to come
🎓 Students at Austrian universities can earn ECTS

asc.ac.at/training/
events.asc.ac.at/category/4/

📸 Peak performance - greatings from Madeira
Peak performance - greatings from Madeira
September 24, 2025 at 5:51 AM
claudiablaas.bsky.social
This week in
✨Foundations of #LLM Mastery
✨Fine-tuning on one GPU
✨Fine-tuning on multi GPUs

Martin and Simeon rocked the floor with cute Llamas and great explanations:
🦙 LLM parallelization
how to chop up a Llama
🦙 LLM evaluation
how to take a Llama‘s measurement

When #AI meets #HPC
"Foundations of LLM Mastery: Fine-tuning on multi GPUs, 11 September 2025, online" LLM parallelization - how to chop up a Llama "Foundations of LLM Mastery: Fine-tuning on multi GPUs, 11 September 2025, online" LLM evaluation - how to take a Llama‘s measurement
September 11, 2025 at 8:36 PM
claudiablaas.bsky.social
It’s #RAG time in our course series
✨Foundations of #LLM Mastery
✨Retrieval Augmented Generation

Today, Thomas showed how to build a RAG system from scratch and explained how to overcome the challenges and use RAG effectively 🚀

✨https://events.asc.ac.at/e/LLM-rag-2025-08

When #AI meets #HPC
"Foundations of LLM Mastery: Retrieval Augmented Generation, 28 August 2025, online" Why use Retrieval Augmented Generation (RAG) in your prompts - expands and enhances your prompts - delivers transparent and up-to-date answers - reduces hallucinations … "Foundations of LLM Mastery: Retrieval Augmented Generation, 28 August 2025, online" … but there are some challenges - poor answers if your source documents are low quality - higher latency and more compute required - complex system architecture
August 28, 2025 at 12:57 PM
claudiablaas.bsky.social
The #ASC training is back with the summer edition of our course series
✨Foundations of LLM Mastery
Yesterday, Simeon talked about
✨Prompt Engineering Essentials

✨ events.asc.ac.at/e/LLM-prompt...

When #AI meets #HPC

@asc.ac.at
@eurocc-austria.at
#AI:AT #LLM
"Foundations of LLM Mastery: Prompt Engineering Essentials, 25 August 2025, online" - These 5 principled will save you hours - Practical tips to get better results with less trial and error "Foundations of LLM Mastery: Prompt Engineering Essentials, 25 August 2025, online" 1. Provide clear and specific instructions 2. Define formatting and structure 3. Provide examples 4. Break down complex tasks into steps 5. Give the model time to think
August 26, 2025 at 6:01 AM
claudiablaas.bsky.social
In June we supported the inaugural Leh Indian Glaciology Summer School (LIGSS-2025) in Ladakh, India with computing resources.

Blog post:
asc.ac.at/news/2025/ne...

#HPC #ASC #ASCtraining
LIGSS-2025 field trip, Ladakh, India
August 8, 2025 at 5:24 PM
claudiablaas.bsky.social
Today we had our last big bootcamp for this season – we let 110 participants dive into intermediate to advanced topics on #LEONARDO supercomputer in the

Profiling AI Software Bootcamp

events.vsc.ac.at/e/AIprofilin...

When #AI meets #HPC

🧵
Participants and trainers of the „Profiling AI Software Bootcamp, 10 July 2025, online" – 65 persons (from the 126 in the Zoom meeting) are on the picture.
July 10, 2025 at 7:15 PM
claudiablaas.bsky.social
Today and tomorrow we have the #EVITA Kick-Off Meeting at #BSC.

We also got to see MareNostrum5 and the two quantum computers available at BSC.

@evitahpc.bsky.social
@bsc-cns.bsky.social
MareNostrum5 @ BSC MareNostrum5 @ BSC Cooling infrastructure for MareNostrum5 @ BSC Quantum Computers (5 Qubits in blue and 10 Qubits in red) @ BSC
July 1, 2025 at 9:35 PM
claudiablaas.bsky.social
A little sightseeing before …
Sagrada Família, Barcelona Sagrada Família, Barcelona Sagrada Família, Barcelona Sagrada Família, Barcelona
June 30, 2025 at 8:23 PM
claudiablaas.bsky.social
Fly away – mountains – sea – containers

Any guess about the mountains and final destination?
Fly away … … mountains … … sea … … containers
June 28, 2025 at 8:43 PM
claudiablaas.bsky.social
It‘s the end of the semester!
It‘s excursion time!

Today I took my InterMaths students on a guided tour to finally see the hardware they were using during the labs.

@vscluster.bsky.social
InterMaths students visiting VSC InterMaths students visiting VSC InterMaths students visiting VSC InterMaths students visiting VSC
June 25, 2025 at 5:10 PM
claudiablaas.bsky.social
And great partners – thanks a lot for the collaboration 🎉

@eurocc.bsky.social
@eurocc-austria.bsky.social
@eurocc-gcs.bsky.social
@euroccpoland.bsky.social
@enccs.bsky.social
& #EuroCC CZ, ME, SI
& their #HPC centers
#NVIDIA
#OpenACC_org
@vscluster.bsky.social
#Athena #Cyfronet
Collaboration of EuroCC2, NVIDIA, and OpenACC organization in the "Multi-GPU Programming Bootcamp, 17-18 June 2025, online".
June 21, 2025 at 12:20 PM
claudiablaas.bsky.social
What does it need for a bootcamp?

👉 Careful planning well ahead

👉 120 participants
👉 13 teaching assistants from
👉 7 #HPC centers
👉 1 great instructor from #NVIDIA
👉 2 moderators

And…

🧵
A line-up of instructor, moderators, and teaching assistants "Helping you to exploit multiple GPUs" at the "Multi-GPU Programming Bootcamp, 17-18 June 2025, online".
June 21, 2025 at 12:20 PM
claudiablaas.bsky.social
Our #GPU bootcamps reached the next level – Multi-GPU 🚀

Last week we had 120 participants in Zoom, on Slack, and on the GPUs of #Athena (Cyfronet) – it’s great to see so much interest in #HPC

Multi-GPU Programming Bootcamp

events.vsc.ac.at/e/Multi-GPU-...

🧵
"What to use when" – summary slide of the "Multi-GPU Programming Bootcamp, 17-18 June 2025, online" – a collaboration of EuroCC2, NVIDIA, and OpenACC organization.
June 21, 2025 at 12:20 PM
claudiablaas.bsky.social
Is training scalable? With the right partners and a little parallelization definitely yes! A while ago we conducted a quite large ✨AI4science✨ boocamp with 210 participants – 2 very intense half days in Zoom, on Slack, and on the GPUs of 3 HPC systems – absolutely amazing 💯

When #AI meets #HPC

🧵
A line-up of instructors, moderators, and teaching assistants "Helping you to do AI for Science" at the "AI for Science Bootcamp, 27-28 May 2025, online".
June 17, 2025 at 5:57 AM
claudiablaas.bsky.social
Goodby Hamburg – with a very short sightseeingtour to Elbphilharmonie 📸

#Elbphilharmonie #Hamburg
Elbphilharmonie, Hamburg Elbphilharmonie, Hamburg
June 13, 2025 at 10:59 AM
claudiablaas.bsky.social
Connecting the Dots
#HPC + #AI + #Quantum

Mission accomplished – #ISC25 is over
Connecting the Dots
June 12, 2025 at 11:33 PM
claudiablaas.bsky.social
Tackling Fragmentation in Exascale Supercomputing and Beyond – Yutong Lu (National Supercomputing Center in Guangzhou) – Closing Keynote at #ISC25

📍 Hardware:
From Hybrid to Harmony

📍 Software:
From Separation to Synergy

📍 Environment:
From Exclusion to Extension

#HPC #AI
June 12, 2025 at 11:20 PM
claudiablaas.bsky.social
The New MPI-5.0 – Now With ABI Included! – BoF at #ISC25

A full room & a lot of interest – no wonder since #MPI is one of the most iconic tools in #HPC.

We want to hear from you what you expect from MPI-6.0!

Want to shape the future of #MPI? Join the #MPI_Forum!
MPI BoF at ISC25: The New MPI 5.0 – Now With ABI Included! MPI BoF at ISC25: What is Next? - Implementations of the ABI available soon! - MPI Forum started working on MPI 6.0 - We want to hear from you what you expect from MPI 6.0! MPI BoF at ISC25: The MPI Forum Drives MPI - Standardization body for MPI - Open membership - Forum meetings - Join us: mpi-forum.org MPI BoF at ISC25: Why Should You Participate?
June 12, 2025 at 10:52 PM
claudiablaas.bsky.social
By 2030 it will/might be possible to study how clouds react to warming and how areosols influence the climate systems

To embed climate information in decision making needs:
…
📍 a way for people to access this information
📍 standards that protect and valorize best practices

#AI #HPC
June 11, 2025 at 8:48 PM
claudiablaas.bsky.social
Blue Marble photo (1972) and weather simulation for the very same day on the bright (visible) and on the dark (invisible) side of the earth.

Still there is not enough computing available yet.

#HPC #AI
🧵
June 11, 2025 at 8:48 PM
claudiablaas.bsky.social
Big Questions for the Future of #HPC-#AI – Fishbowl panel at #ISC25

Fun and interesting – constantly looping in new panelists & new viewpoints 👀

In the end @thoefler.bsky.social managed #Connecting_the_Dots in a truly positive way.
Big Questions for the Future of HPC-AI – Fishbowl panel at ISC25 Big Questions for the Future of HPC-AI – Fishbowl panel at ISC25 Big Questions for the Future of HPC-AI – Fishbowl panel at ISC25 Big Questions for the Future of HPC-AI – Fishbowl panel at ISC25
June 11, 2025 at 3:03 PM
claudiablaas.bsky.social
Recommendations from the panel for women in #HPC

👉 Be yourself!

👉 Learn to be resilient!

👉 Plan your life like a job scheduler – sometimes some jobs are just more important than others, some jobs take more time than others, priorities shift over time.

Join #CE-WHPC #WHPC:
Super(computing)heroes 2025 – BoF at ISC25 – organizers and panelists
June 11, 2025 at 10:05 AM