"Benchmarking is core to High-Performance Computing... Here we present a list of over 100 HPC benchmarks and benchmark suites, introduced in the accompanying paper." - fzj-jsc.github.io/benchmark-su... - github.com/FZJ-JSC/benc... - arxiv.org/abs/2509.08347

@tnorris.bsky.social on why narratives about data center power demand are making it appear more constant & closer to full capacity than it actually is. Getting this right is key to heading off overbuild of generation and grid infrastructure. Big implications for climate, electricity rates and more.

Looks like the course material is also all open. Good examples to show how all the pieces can fit together in practice: gitlab.tuwien.ac.at/vsc-public/t...

C++ std::simd (ok, std::datapar) is cool. Portable, order-of-magnitude speedups (w/ modern CPUs and the right, flop intense algorithms) 🚀 #HPC #SIMD github.com/BLAST-Impact...

🚀 ISAMBARD-AI, the UK’s new AI Research Resource, is now live! Two access opportunities are open for researchers to tap into world-class supercomputing. Apply now: www.gov.uk/government/p... #AI #Supercomputing #AIRR #UKResearch

After the official switch on of Isambard-AI last week, you can now apply for time on this amazing resource! Open for researchers and companies in the UK, find out how to apply to the UK's newest and fastest supercomputer at the following link: www.gov.uk/government/p...

Cant wait to try this out. Huge achievement!

Are GitHub stars something of a silly metric? In my opinion, "yes." Would I like you to star our project anyway? Also "yes". :)

The good people at @vastdata.bsky.social were kind enough to post an announcement (and Q&A about #AI) about me joining the company. Nothing too deep, but a peek at whats to come! www.vastdata.com/blog

Shorter summary: Everybody wants GPU access and computer scientists are trying to shame academic institutions into buying more. https://arxiv.org/abs/2506.19019 To my mind it’s a positive feature and not a bug that we have programs like https://nairrpilot.org/ to soak this interest up. Scaling […]

At the panel on energy efficiency beyond hardware, the topic of “why can’t we do what cell phones do?” came up. Amazed that #HPC people don’t understand that the latency requirements of a human-driven device are way easier than RDMA and memcpy. #ISC25

Latest #Top500 should be available soon.

UK's Isambard-AI super powers up as government goes AI crazy

Found the “Welcome Tour” on Switch 2 a great way of introducing the system and goes into a lot of detail. I especially like the hidden tips like ways to get completion if you dont have an accessory or option. Now to make one for Supercomputers. #switch2

Son found the joy of new console. Download of 2 hours for included Mario Kart World and took about an hour to fully unbox and setup (inc. transfer). Welcome Tour was easy to obtain. I did offer to preconfigure but he wanted to do it. Does look good, still to try more of the upgraded games. #switch2

Abouzied M. A. Nasar, Benedict D. Rogers, Georgios Fourtakas, Scott T. Kay, Matthieu Schaller: Task-parallelism in SWIFT for heterogeneous compute architectures https://arxiv.org/abs/2505.14538 https://arxiv.org/pdf/2505.14538 https://arxiv.org/html/2505.14538

Heading to New York for #cug2025 - had opportunity for recently acquired lego Brunel to meet bigger version of itself.

🇨🇭 The #CSCS team is heading to #CUG2025 in New York! Join us May 4–10 for BoFs, tutorials, talks & best papers. We kick off Sunday with Benjamin Cumming on CPE in a Container. Let’s talk #HPC!

Brit universities told to keep up the world-class research with less cash

Nvidia’s AI suite may get a whole lot pricier, thanks to Jensen’s GPU math mistake

I'm looking forward to my last talk "ARMing GPUs: On the Memory Subsystem of Grace Hopper GH200" at #SCAsia2025 at the ARM for #HPC workshop tomorrow. Learn about the quite complex and powerful memory performance at 4:15pm in room O7 🚀 Paper: buff.ly/rP7i0Nr Workshop: buff.ly/H18dPGj

This is about to begin! Recording will be available later.

Recommend checking this out!

Congratulations, @tgamblin.bsky.social! LLNL’s Todd Gamblin named an HPC-AI Vanguard by insideHPC insidehpc.com/2025/02/vang... #HPC #AI

I wrote a little text to accompany this slide. It sums up the hour-long presentation in just a few words. www.glennklockwood.com/garden/diffe... #HPC #AI

We provide computational training to UK researchers as part of the ARCHER2 UK national supercomputing service. EPCC's Evgenij Belikov writes about a course he recently delivered at Cardiff University, using materials developed by The Carpentries: https://buff.ly/3EAXXzv

This is a call out to bioinformatics developers that we are working to get all of NF-Core pipelines (and by extension most of Bioconda) to support Arm. Spot price for c8g.16xlarge (Graviton4) and it is below 60¢/hr. Or < 1¢ per physical CPU if your application supports Arm ...

MacOS seems to make it really hard to set default apps. For example to set default mail app you have to create an account in the apple mail app to get to the setting. Seems to be common issue after searching for solution.

Is FFTW abandonware at this point? 2 years with no response from the maintainers on the ARM SVE pull request… github.com/FFTW/fftw3/p...

📅 Marking the End of an Era: Farewell to Piz Daint 🖥️✨On 23.01.2025, we bid farewell to Piz Daint, the iconic supercomputer that has been the backbone of countless groundbreaking scientific discoveries. Thank you, Piz Daint, for your remarkable contributions to science and humanity.

Just as a heads up / explanation...

DK Panda named #ACM fellow Congratulations! engineering.osu.edu/news/2025/01... #HPC #MPI @acm.org

Bye bye #PizDaint 🇨🇭. It was a real pleasure working with you for a while. #HPC

@simonmcs.bsky.social Didn’t wake up today expecting to see you on the local news 😂

Want to express an interest to use UK large scale AI compute? Then you are in luck. UKRI are running an EoI on behalf of DSIT. In particular to access AI Research Resource (AIRR). #ai #supercomputer engagementhub.ukri.org/ukri-infrast...

This week, I'm thinking a lot about User Experience for #HPC. How can I make users 'productive' and 'happy'? Imagine I had a magic wand. What would you wish for?

What a day for Isambard-AI, central to the Government's AI Opportunities Action Plan 💪🏻 www.bristol.ac.uk/news/2025/ja... #ai #hpc @emmamrose.bsky.social @rjjgilham.bsky.social @simonmcs.bsky.social

Something to keep eye out today for UK AI plans www.gov.uk/government/n...

Thinking of submitting a talk, paper, or poster to @iwocl.bsky.social? Good news! You now have until Sunday January 19, AoE to do so!

It's been getting too lonely on Twitter – time to see if the grass is greener and the skies are bluer on the other side. Hello @bsky.app and everyone, we'll continue bringing you #HPC news & highlights of the work of Vienna Scientific Cluster and are happy to connect 👋

use a variation on this trick: mcyoung.xyz/2023/11/27/s...

🙌 We’re pleased to announce we’ll be hosting the first-ever HPSF Conference in May 2025, where you will have the opportunity to learn about HPSF activities & get involved in shaping the future of high performance software 🙌 #HPSFcon events.linuxfoundation.org/hpsf-confere...

More research funding like this please: 7 applications received, 7 of them got funding, total 1.5 billion euros or something like that :) eurohpc-ju.europa.eu/selection-fi...

Just got my first emergency severe alert on my phone due to Storm Darragh. #stormdarragh

absolutely incredible attack vector

Who designed QR codes and bar codes to be close enough on packaging where scanners can now pick up both. Number of times crashed self service tills and be told I have to cover the QR code. Not sure thats the answer.

#CIUK has finished for this year. A great event, it felt like most of the UK community was there, with over 900 attendees! Exciting to exhibit Isambard-AI, Isambard 3 and the Bristol Centre for Supercomputing (BriCS). Huge thanks to all our team for their hard work pulling this together #HPC #AI

The #ISC25 research paper deadline has been extended to December 20, providing more time for researchers in high performance computing #HPC, #AI, and computational sciences to submit their work. This is an opportunity to showcase innovations and contribute to shaping the future of supercomputing.

Just posted on LinkedIn - see this video of how we installed the Isambard-AI modular datacenter in Bristol last week, during a snowstorm! This 5MW facility will soon be home to a new HPE EX4000 supercomputer, including 5,280 NVIDIA GH200 GPUs www.linkedin.com/posts/simonm...