No one remembers history.
When IBM and Microsoft partnered on OS/2, IBM got upset when a MS employee rewrote some code to be smaller and more efficient because “negative lines of code!”.
Measure the wrong thing and you’ll get the wrong behavior. Incentives matter.
(╯°□°)╯︵ ┻━┻
AI is turning scientists into publishing machines—and quietly funneling them into the same crowded corners of research.
spectrum.ieee.org/ai-science-r...
Nvidia’s New #Rubin Architecture Thrives on Networking
Some computations happen while data is enroute
spectrum.ieee.org/nvidia-rubin...
@spectrum.ieee.org
AI Coding Assistants Are Getting Worse
Newer models are more prone to silent but deadly failure modes
spectrum.ieee.org/ai-coding-de...
#AI @spectrum.ieee.org
The problem with saying "just tier to HDD if flash prices are too high" is HDDs are scarce too. HDD manufacturers opted not to invest in expanding fab capacity b/c they'd never recover the capex given declining HDD sales. HDDs are a myopic investment right now.
blocksandfiles.com/2026/01/09/s...
The Rubin platform uses codesign across six chips — the NVIDIA Vera CPU, NVIDIA Rubin GPU, NVIDIA NVLink™ 6 Switch, NVIDIA ConnectX®-9 SuperNIC, NVIDIA BlueField®-4 DPU and NVIDIA Spectrum™-6 Ethernet Switch — to slash training time and inference token costs.
nvidianews.nvidia.com/news/rubin-p...
“AGI” has turned into a term of hype rather than a term with a precise meaning.
Andrew Ng proposes a new version of the Turing Test, the Turing-#AGI Test.
www.deeplearning.ai/the-batch/is...
NASA's SPHEREx is creating a 3D map of the sky every six months over a two-year period, delivering a sweeping view of the cosmos.
Behind the scenes, teams from NASA JPL, Caltech, the NEID project, and TACC built the mission’s first fully automated science data pipeline.
Learn more: bit.ly/4b7yufa
📢 REX-IO 2026 Workshop: Call for Papers! 📢
I'm happy to announce the 6th Workshop on Re-envisioning Extreme-Scale I/O for Emerging Hybrid HPC Workloads at ACM HPDC 2026!
Submissions are due March 31, 2026 (11:59PM AoE). 📜 🦖
Further info: sites.google.com/view/rexio/
#HPC #supercomputing
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
Schedule for #HPC, Big Data, and Data Science devroom at FOSDEM'26 (on Sun 1 Feb 2026, in Brussels) has been published: fosdem.org/2026/schedul...
A well written (mostly) non-technical #AI primer by @thedeadline.bsky.social
www.hpcwire.com/2025/12/16/a...
AI’s Wrong Answers Are Bad.
Its Wrong Reasoning Is Worse.
spectrum.ieee.org/ai-reasoning...
NERSC recently did a wholesale replacement of its FDR InfiniBand storage fabric to RoCE. The IB was a greenfield installation back when I started in 2015, and replacing it with a competing technology in production is quite the feat. Glad to hear it succeeded.
www.nersc.gov/news-and-eve...
IDC: $314.2B in GPU-accelerated systems in first 3 Q of 2025
How sustainable is this crazy server spending?
ODMs are now pushing almost 60% of worldwide server revenues, up from 45% last year.
www.nextplatform.com/2025/12/16/h...
#AI #HPC @nextplatform.bsky.social
The best version of #HPC: NCSA director Bill Gropp on ‘imagining an HPC utopia’
www.eurekalert.org/news-release...
@ncsaatillinois.bsky.social
NVIDIA has acquired SchedMD — the leading developer of #Slurm, an open-source workload management system for #HPC and #AI
blogs.nvidia.com/blog/nvidia-...
#HPC in Transition: Jack Dongarra will deliver the #ISC26 Closing Keynote on Thursday, June 25, 2026.
The EuroHPC Federation Platform will bring @eurohpc-ju.bsky.social systems together, making it easier for researchers and industry to find, access and use computing resources across Europe from a single place. Next step: the launch of MyEuroHPC web interface in March 2026 🔗 csc.fi/en/blog/euro...
I wrote up my notes from #SC25. Have a look: blog.glennklockwood.com/2025/12/sc25...
I’ll keep picking away at the editing, but would love to hear more from others about what stood out to them. I wasn’t at the conference itself as much this years as in the past, so I know I missed a lot.
#HPC
A brave stake in the ground that defines what is (and isn’t) a parallel file system. I generally agree with Chris’ explanation. But I’m sure he’ll get hate from parallel storage elitists who don’t like how inclusive his take is.
DOE to build an integrated discovery platform by linking together #supercomputers and other facilities at its 17 National Laboratories with industry and academia drawing on the expertise of roughly 40,000 scientists, engineers, and technical staff.
www.theregister.com/2025/11/25/t...
NVIDIA will introduce liquid-cooled busbars into the racks for its Vera Rubin platform, part of a broader evolution of data center racks and power design to support more powerful AI computing.
open.substack.com/pub/datacent...
Intel: We’re simplifying the Diamond Rapids platform with a focus on 16 Channel processors and extending its benefits down the stack to support a range of unique customers and their use cases. (Source: Intel Spokesperson to STH)
www.servethehome.com/intel-cancel...
@servethehome.com.web.brid.gy
A row of server racks with a mural of a yellow sky, including a few silhouetted hot air balloons, and the name “Cielo”
Silly thread for a Saturday: some of the #HPC clusters I’ve worked on over the years.
First up is Cielo, a Cray XE6 I worked on at LANL! Which might actually be the prettiest supercomputer I’ve worked on.
A random interesting fact about the Cray XE6 racks: air exhausted up from the top of the rack!
The result was that the lights above Cielo all started failing over time due to being blasted with hot air. And no good way to access them due to the size of the cluster.
Clearly an early photo 😁
Exclusive: Amazon.com is joining Microsoft in supporting legislation that threatens to further limit Nvidia’s ability to export to China, a rare split between the chip designer and two of its biggest customers.
Exclusive: Samsung hikes memory chip prices by up to 60% as shortage worsens, sources say reut.rs/49QjvFI
Very nice overview of the emerging UALink standard with nice features such as splitting packets in switches, in-network computing, high energy efficiency, and lowest silicon overhead: buff.ly/AgLvC1g
I'll be joining a panel at SC25 contrasting UALink and UEC next Wed: buff.ly/BeCMFcL Join us there
