Axel Huebl
@axccl.bsky.social
computational physicist • accelerates accelerator research at @berkeleylab.bsky.social • laser-plasma aficionado • PByte connoisseur • mostly memory BW bound • openPMD • sciency C++ & 🐍 • GPGPU since before it was cool • he/his • Dr. rer. nat. Dipl.-Phys.
We look forward to welcome #SC25 attendees for #ISAV25 on Sunday morning!
Program: sc25.conference-program.com/session/?ses...
Homepage: isav-workshop.github.io/2025/
Program: sc25.conference-program.com/session/?ses...
Homepage: isav-workshop.github.io/2025/
sc25.conference-program.com
November 10, 2025 at 7:26 PM
We look forward to welcome #SC25 attendees for #ISAV25 on Sunday morning!
Program: sc25.conference-program.com/session/?ses...
Homepage: isav-workshop.github.io/2025/
Program: sc25.conference-program.com/session/?ses...
Homepage: isav-workshop.github.io/2025/
Found my new favorite unit: bit flips / flop
October 28, 2025 at 9:51 PM
Found my new favorite unit: bit flips / flop
Reposted by Axel Huebl
Our BELLA Center has accomplished the first characterization of a collimated muon beam using a laser-plasma accelerator, laying the groundwork for advanced imaging techniques far exceeding current technologies
@BerkeleyLab @doescience @ENERGY
Read more here
@BerkeleyLab @doescience @ENERGY
Read more here
October 17, 2025 at 3:17 PM
Our BELLA Center has accomplished the first characterization of a collimated muon beam using a laser-plasma accelerator, laying the groundwork for advanced imaging techniques far exceeding current technologies
@BerkeleyLab @doescience @ENERGY
Read more here
@BerkeleyLab @doescience @ENERGY
Read more here
Reposted by Axel Huebl
Starting in 15 minutes!
Very much looking forward to @axelvisel.bsky.social's talk "From Nucleotide to Megabase Scale: Enhancer Function in Development and Disease" in our @enhancedgenomics.bsky.social seminar series "The 3D Regulatory Genome"
📅 02 October 2025 (today!)
⏰ 4 pm GMT
Join:
us02web.zoom.us/webinar/regi...
📅 02 October 2025 (today!)
⏰ 4 pm GMT
Join:
us02web.zoom.us/webinar/regi...
October 2, 2025 at 2:47 PM
Starting in 15 minutes!
Reposted by Axel Huebl
Great news! The date & location is locked in for #HPSFCon 2026. Save the date:
➡️ HPSF Conference
📅 March 16-20, 2026
📍 Chicago, IL
The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.
➡️ HPSF Conference
📅 March 16-20, 2026
📍 Chicago, IL
The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.
October 1, 2025 at 6:42 PM
Great news! The date & location is locked in for #HPSFCon 2026. Save the date:
➡️ HPSF Conference
📅 March 16-20, 2026
📍 Chicago, IL
The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.
➡️ HPSF Conference
📅 March 16-20, 2026
📍 Chicago, IL
The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.
Reposted by Axel Huebl
Join us in Chicago in March, when we'll hold the second in-person Spack User Meeting in conjunction with HPSFCon 2026!
Stay tuned for details! #hpc #hpsf #spack
Stay tuned for details! #hpc #hpsf #spack
Great news! The date & location is locked in for #HPSFCon 2026. Save the date:
➡️ HPSF Conference
📅 March 16-20, 2026
📍 Chicago, IL
The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.
➡️ HPSF Conference
📅 March 16-20, 2026
📍 Chicago, IL
The 2nd annual HPSFCon will again bring together the brightest minds in high performance software. Stay tuned for CFP & registration details later this month.
October 1, 2025 at 11:37 PM
Reposted by Axel Huebl
Missed our 4 day tutorial at ICPP? We've outlined the highlights in our latest blog ✏️ ✨
Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...
Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...
September 24, 2025 at 4:29 PM
Missed our 4 day tutorial at ICPP? We've outlined the highlights in our latest blog ✏️ ✨
Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...
Read more about our work with Spack, Kokkos, and Trilinos: hpsf.io/blog/2025/hp...
Reposted by Axel Huebl
Working on performance portability, sustainability, or trust in software? HPSFCon sessions dive into these challenges and more.
👀 🎧 Watch them on demand: www.youtube.com/playlist?lis...
👀 🎧 Watch them on demand: www.youtube.com/playlist?lis...
September 18, 2025 at 7:41 PM
Working on performance portability, sustainability, or trust in software? HPSFCon sessions dive into these challenges and more.
👀 🎧 Watch them on demand: www.youtube.com/playlist?lis...
👀 🎧 Watch them on demand: www.youtube.com/playlist?lis...
Reposted by Axel Huebl
🚀 Europe’s first exascale supercomputer is here!
JUPITER, launched in Germany, is the EU’s most powerful system and fourth fastest worldwide.
100% powered by renewables, it has also ranked first in energy efficiency. It will boost AI, science, and climate research.
Read more - europa.eu/!vcWBqW
JUPITER, launched in Germany, is the EU’s most powerful system and fourth fastest worldwide.
100% powered by renewables, it has also ranked first in energy efficiency. It will boost AI, science, and climate research.
Read more - europa.eu/!vcWBqW
September 6, 2025 at 7:17 AM
🚀 Europe’s first exascale supercomputer is here!
JUPITER, launched in Germany, is the EU’s most powerful system and fourth fastest worldwide.
100% powered by renewables, it has also ranked first in energy efficiency. It will boost AI, science, and climate research.
Read more - europa.eu/!vcWBqW
JUPITER, launched in Germany, is the EU’s most powerful system and fourth fastest worldwide.
100% powered by renewables, it has also ranked first in energy efficiency. It will boost AI, science, and climate research.
Read more - europa.eu/!vcWBqW
Reposted by Axel Huebl
cibuildwheel π is out! (3.1.4). A few nice things, like --clean-cache, Android fixes, and new versions of things like CPython 3.14rc2. Note for iOS on GHA/Azure, you need macOS-14, Microsoft broke macOS-15 images for iOS (WRT CPython's test runner, anyway) github.com/pypa/cibuild...
Release v3.1.4 · pypa/cibuildwheel
✨ Add a --clean-cache command to clean up our cache (#2489)
🛠 Update Python to 3.14rc2 and other patch version bumps (#2542, #2556)
🛠 Update Pyodide to 0.28.2 (#2562, #2558)
🐛 Fix resolution with p...
github.com
August 20, 2025 at 5:22 AM
cibuildwheel π is out! (3.1.4). A few nice things, like --clean-cache, Android fixes, and new versions of things like CPython 3.14rc2. Note for iOS on GHA/Azure, you need macOS-14, Microsoft broke macOS-15 images for iOS (WRT CPython's test runner, anyway) github.com/pypa/cibuild...
Reposted by Axel Huebl
For PhD students in my network, NVIDIA is now accepting applications for our graduate fellowship program. If you are working on topics across AI, life sciences, healthcare and HPC - consider applying.
blogs.nvidia.com/blog/applica...
blogs.nvidia.com/blog/applica...
Applications Now Open for $60,000 NVIDIA Graduate Fellowship Awards
The NVIDIA Graduate Fellowship Program provides grants, mentors and technical support to doctoral students doing outstanding research relevant to NVIDIA technologies. The application deadline for the ...
blogs.nvidia.com
August 16, 2025 at 5:54 PM
For PhD students in my network, NVIDIA is now accepting applications for our graduate fellowship program. If you are working on topics across AI, life sciences, healthcare and HPC - consider applying.
blogs.nvidia.com/blog/applica...
blogs.nvidia.com/blog/applica...
Please don't hate me, but I will publish a tiny proceedings paper in which I list a single CPU core not far from a full GPU, because I wanted to learn how bad/good our serial vectorization is before OpenMP and MPI parallelization.
I also want to do the cardinal sin of benchmark presentation, ok?!
I also want to do the cardinal sin of benchmark presentation, ok?!
August 9, 2025 at 1:20 AM
Please don't hate me, but I will publish a tiny proceedings paper in which I list a single CPU core not far from a full GPU, because I wanted to learn how bad/good our serial vectorization is before OpenMP and MPI parallelization.
I also want to do the cardinal sin of benchmark presentation, ok?!
I also want to do the cardinal sin of benchmark presentation, ok?!
Reposted by Axel Huebl
We're looking forward to participating in the 2025 International Conference on Parallel Processing (ICPP) 🤓
We'll be having a hands on workshop showcasing an introduction to Performance Portable HPC Development with Spack, Kokkos, and Trilinos.
See you there ✨ hpsf.io/blog/2025/hp...
We'll be having a hands on workshop showcasing an introduction to Performance Portable HPC Development with Spack, Kokkos, and Trilinos.
See you there ✨ hpsf.io/blog/2025/hp...
July 31, 2025 at 4:13 PM
We're looking forward to participating in the 2025 International Conference on Parallel Processing (ICPP) 🤓
We'll be having a hands on workshop showcasing an introduction to Performance Portable HPC Development with Spack, Kokkos, and Trilinos.
See you there ✨ hpsf.io/blog/2025/hp...
We'll be having a hands on workshop showcasing an introduction to Performance Portable HPC Development with Spack, Kokkos, and Trilinos.
See you there ✨ hpsf.io/blog/2025/hp...
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...
github.com/BLAST-Impact...
CPU SIMD Support by ax3l · Pull Request #1002 · BLAST-ImpactX/impactx
todo
See AMReX-Codes/amrex#4520
To Do
update install docs
update CI (partially): SIMD, ideally even single-precision (uncovers more issues at compile-time)
Benchmarks on Dane (LLNL)
Machine: Da...
github.com
July 31, 2025 at 8:12 AM
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...
github.com/BLAST-Impact...
Reposted by Axel Huebl
The 13th MVAPICH User Group (MUG) Conference is coming up (Aug 18-20 in Columbus). It's a great event for focused technical presentations around MPI and network performance. Great speaker lineup too. Wish I could make it in-person, but virtual attendance is free
mug.mvapich.cse.ohio-state.edu
#HPC
mug.mvapich.cse.ohio-state.edu
#HPC
MUG :: Home
mug.mvapich.cse.ohio-state.edu
July 29, 2025 at 9:40 PM
The 13th MVAPICH User Group (MUG) Conference is coming up (Aug 18-20 in Columbus). It's a great event for focused technical presentations around MPI and network performance. Great speaker lineup too. Wish I could make it in-person, but virtual attendance is free
mug.mvapich.cse.ohio-state.edu
#HPC
mug.mvapich.cse.ohio-state.edu
#HPC
Reposted by Axel Huebl
💥Spack v1.0 is out!💥
This is a huge milestone. We reworked the core to add compiler dependencies, and we're introducing a stable package API.
🚀1.0 also adds concurrent builds, better includes, and much more -- read it all in the release notes!
github.com/spack/spack/...
This is a huge milestone. We reworked the core to add compiler dependencies, and we're introducing a stable package API.
🚀1.0 also adds concurrent builds, better includes, and much more -- read it all in the release notes!
github.com/spack/spack/...
github.com
July 20, 2025 at 10:45 AM
💥Spack v1.0 is out!💥
This is a huge milestone. We reworked the core to add compiler dependencies, and we're introducing a stable package API.
🚀1.0 also adds concurrent builds, better includes, and much more -- read it all in the release notes!
github.com/spack/spack/...
This is a huge milestone. We reworked the core to add compiler dependencies, and we're introducing a stable package API.
🚀1.0 also adds concurrent builds, better includes, and much more -- read it all in the release notes!
github.com/spack/spack/...
Reposted by Axel Huebl
New #HPC Job! 😍️
HPC Software Scientist: Mixed Precision in molecular dynamics / GROMACS
Location: Stockholm, sweden
Employer: KTH Royal Institute of Technology in Stockholm
Remote: Remote friendly
HPC Software Scientist: Mixed Precision in molecular dynamics / GROMACS
Location: Stockholm, sweden
Employer: KTH Royal Institute of Technology in Stockholm
Remote: Remote friendly
July 3, 2025 at 3:15 AM
New #HPC Job! 😍️
HPC Software Scientist: Mixed Precision in molecular dynamics / GROMACS
Location: Stockholm, sweden
Employer: KTH Royal Institute of Technology in Stockholm
Remote: Remote friendly
HPC Software Scientist: Mixed Precision in molecular dynamics / GROMACS
Location: Stockholm, sweden
Employer: KTH Royal Institute of Technology in Stockholm
Remote: Remote friendly
CfP: We are looking for talks/short/long papers to #ISAV 2025: In Situ AI, Analysis and Visualization!
Are you working on in situ methods, algorithms or the synthesis between HPC & AI/ML? Share your best results as papers, your ideas as short papers or talks! #SC25
isav-workshop.github.io/2025/
Are you working on in situ methods, algorithms or the synthesis between HPC & AI/ML? Share your best results as papers, your ideas as short papers or talks! #SC25
isav-workshop.github.io/2025/
ISAV 2025: In Situ AI, Analysis and Visualization
Information for the SC’25 conference ISAV workshop
isav-workshop.github.io
July 4, 2025 at 3:09 AM
CfP: We are looking for talks/short/long papers to #ISAV 2025: In Situ AI, Analysis and Visualization!
Are you working on in situ methods, algorithms or the synthesis between HPC & AI/ML? Share your best results as papers, your ideas as short papers or talks! #SC25
isav-workshop.github.io/2025/
Are you working on in situ methods, algorithms or the synthesis between HPC & AI/ML? Share your best results as papers, your ideas as short papers or talks! #SC25
isav-workshop.github.io/2025/
Reposted by Axel Huebl
computer still bad
July 1, 2025 at 6:28 AM
computer still bad
Reposted by Axel Huebl
Dread HPC Guru Roberts
June 12, 2025 at 3:08 AM
Dread HPC Guru Roberts
Reposted by Axel Huebl
All things, with one exception, have to end
After years of sharing #HPC news and insights, it's time to log off
It was fun while it lasted and I remain grateful to all of you who followed and interacted
Stay curious, stay kind!
— @hpcguru.bsky.social signing off
#HPC #Farewell
After years of sharing #HPC news and insights, it's time to log off
It was fun while it lasted and I remain grateful to all of you who followed and interacted
Stay curious, stay kind!
— @hpcguru.bsky.social signing off
#HPC #Farewell
June 11, 2025 at 6:39 AM
All things, with one exception, have to end
After years of sharing #HPC news and insights, it's time to log off
It was fun while it lasted and I remain grateful to all of you who followed and interacted
Stay curious, stay kind!
— @hpcguru.bsky.social signing off
#HPC #Farewell
After years of sharing #HPC news and insights, it's time to log off
It was fun while it lasted and I remain grateful to all of you who followed and interacted
Stay curious, stay kind!
— @hpcguru.bsky.social signing off
#HPC #Farewell
Reposted by Axel Huebl
MAJOR PARTICLE PHYSICS REPORT RELEASE ⚛️🧪
The National Academies particle physics decadal report is out! Read read!
(I was a member of the committee that wrote this report but resigned during drafting bc of a conflict of service w/my HEPAP appointment.)
nap.nationalacademies.org/catalog/2883...
The National Academies particle physics decadal report is out! Read read!
(I was a member of the committee that wrote this report but resigned during drafting bc of a conflict of service w/my HEPAP appointment.)
nap.nationalacademies.org/catalog/2883...
Elementary Particle Physics: The Higgs and Beyond
Read online, download a free PDF, or order a copy in print.
nap.nationalacademies.org
June 11, 2025 at 3:26 PM
MAJOR PARTICLE PHYSICS REPORT RELEASE ⚛️🧪
The National Academies particle physics decadal report is out! Read read!
(I was a member of the committee that wrote this report but resigned during drafting bc of a conflict of service w/my HEPAP appointment.)
nap.nationalacademies.org/catalog/2883...
The National Academies particle physics decadal report is out! Read read!
(I was a member of the committee that wrote this report but resigned during drafting bc of a conflict of service w/my HEPAP appointment.)
nap.nationalacademies.org/catalog/2883...
Reposted by Axel Huebl
HPSF 🤝 ISC 2025
Join us next week at ISC for tutorials, BoFs, and workshops on HPSF projects Spack, OpenCHAMI, and more.
🗓️ Details: hpsf.io/blog/2025/hp...
#HPSF #ISC25 #ISChpc #ISC25_SCC #ConnectingTheDots
Join us next week at ISC for tutorials, BoFs, and workshops on HPSF projects Spack, OpenCHAMI, and more.
🗓️ Details: hpsf.io/blog/2025/hp...
#HPSF #ISC25 #ISChpc #ISC25_SCC #ConnectingTheDots
June 4, 2025 at 3:22 PM
HPSF 🤝 ISC 2025
Join us next week at ISC for tutorials, BoFs, and workshops on HPSF projects Spack, OpenCHAMI, and more.
🗓️ Details: hpsf.io/blog/2025/hp...
#HPSF #ISC25 #ISChpc #ISC25_SCC #ConnectingTheDots
Join us next week at ISC for tutorials, BoFs, and workshops on HPSF projects Spack, OpenCHAMI, and more.
🗓️ Details: hpsf.io/blog/2025/hp...
#HPSF #ISC25 #ISChpc #ISC25_SCC #ConnectingTheDots