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LLNL Computing

@Livermore_Comp

An official @Livermore_Lab sub-account Follows, RTs and mentions ≠ endorsements. ALT for banner photo: El Capitan supercomputer at LLNL

 Livermore, CA
computing.llnl.gov/
Joined February 2015
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Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)Photo by LLNL Computing (@Livermore_Comp)
ICYMI the annual MFEM workshop features an exciting visualization contest. This year's winners demonstrate linear plasma temperature and vorticity and thermal computation on a scan-based geometry. View submissions in the gallery: mfem.org/gallery/
Two complex, colorful geometric shapes are displayed against a black background. The shapes consist of grid-like structures with vibrant rainbow hues, including cubes and spherical elements that intertwine.

ALT Two complex, colorful geometric shapes are displayed against a black background. The shapes consist of grid-like structures with vibrant rainbow hues, including cubes and spherical elements that intertwine.

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Postdocs, do you have what it takes to be the next Fernbach Fellow? Applications are due Nov. 20 for this competitive opportunity in computational math, scientific computing, CS, data science, and/or scientific ML. computing.llnl.gov/Fernbach
two silhouetted people pointing to a colorful simulation on a big screen, next to the text "expand the frontiers of computing with us! apply now"

ALT two silhouetted people pointing to a colorful simulation on a big screen, next to the text "expand the frontiers of computing with us! apply now"

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Advance your career in high performance scientific computing at LLNL! Apply for the Sidney Fernbach Postdoctoral Fellowship for the opportunity to work in a cutting-edge research environment with access to the Lab's world-class HPC environment. livermorelab.info/46ZRvxv
Silhouettes of two people point towards a vibrant, abstract digital display. Text reads: "SIDNEY FERNBACH Postdoctoral Fellowship. Expand the frontiers of computing with us! Apply Now!

ALT Silhouettes of two people point towards a vibrant, abstract digital display. Text reads: "SIDNEY FERNBACH Postdoctoral Fellowship. Expand the frontiers of computing with us! Apply Now!

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LLNL researchers received the ACM SIGSIM PADS Test of Time Award for developing Backstroke, a tool that automatically generates reversible C/C++ code for rolling back parallel simulations. computing.llnl.gov/about/new…
A person standing indoors, smiling and holding a plaque. To the right, a line graph shows "Slowdown factor" on the y-axis and "Number of cores" on the x-axis. The graph has two keys: "Big, BS no-opt" with a blue line, "Big, BS opt" with a dashed line, "Small, BS no-opt" with a green line, and "Small, BS opt" with a dashed green line.

ALT A person standing indoors, smiling and holding a plaque. To the right, a line graph shows "Slowdown factor" on the y-axis and "Number of cores" on the x-axis. The graph has two keys: "Big, BS no-opt" with a blue line, "Big, BS opt" with a dashed line, "Small, BS no-opt" with a green line, and "Small, BS opt" with a dashed green line.

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The competitive postdoctoral Fernbach Fellowship is accepting applications until Nov. 20. Will you be the next Fellow? Learn more about the requirements & application process: computing.llnl.gov/Fernbach
two silhouetted people pointing to a colorful simulation on a big screen, next to the text "expand the frontiers of computing with us! apply now"

ALT two silhouetted people pointing to a colorful simulation on a big screen, next to the text "expand the frontiers of computing with us! apply now"

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If you missed the High Performance Computing Innovation Center's free HPC software tutorials, don't worry. We recorded them: youtube.com/playlist?list=PL…
HPC Software Tutorials

HPC Software Tutorials

LLNL's High Performance Computing Innovation Center invites you to learn how to use a modern HPC software stack at your own pace.

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Head on over to Computing at LLNL on LinkedIn for more in-depth info on our projects, people, news, & events: linkedin.com/showcase/comput…
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Attn postdocs! Apply by Nov. 20 for the Sidney Fernbach Fellowship in computational math, scientific computing, CS, data science, and/or scientific ML. Bring your A game! computing.llnl.gov/Fernbach
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CompilerGPT uses LLMs to translate cryptic compiler reports into actionable code optimizations. The open-source tool achieved speedups of up to 6.5x across benchmark applications. Learn more in the latest CASC newsletter: computing.llnl.gov/casc/news…
bar graphs showing Clang and GCC speedups (y-axes) for each benchmark (x-axes) with AI models shown as colored bars

ALT bar graphs showing Clang and GCC speedups (y-axes) for each benchmark (x-axes) with AI models shown as colored bars

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If you missed the High Performance Computing Innovation Center's free HPC software tutorials, don't worry. We recorded them: youtube.com/playlist?list=PL…
HPC Software Tutorials

HPC Software Tutorials

LLNL's High Performance Computing Innovation Center invites you to learn how to use a modern HPC software stack at your own pace.

youtube.com
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LLNL Computing retweeted
GaTech CSE (@GTCSE) profile picture
GaTech CSE@GTCSEOct 1
Replying to @TzanioKolev
Thank you, Tzanio and @Livermore_Comp for bringing MFEM and it's community to Georgia Tech! 🐝 It was an inspiring few days filled with big ideas for the future of scientific computing! Looking forward to seeing what this community builds next with MFEM! 💻 🚀
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As the latest CASC newsletter explains, the open-source YGM library's asynchronous messaging & scalable buffering support high-performance communication for unstructured data & graph algorithms: computing.llnl.gov/casc/news…
plots for Ruby and Lassen showing inserts per second (billions) on y-axes and compute nodes (2 to 128) on x-axes; YGM is plotted in blue and orange compared to red and green competitor frameworks

ALT plots for Ruby and Lassen showing inserts per second (billions) on y-axes and compute nodes (2 to 128) on x-axes; YGM is plotted in blue and orange compared to red and green competitor frameworks

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The latest CASC newsletter describes a decentralized software solution that helps fragmented power grids self-organize into functioning microgrids after disruptions. Read on: computing.llnl.gov/casc/news…
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ALT diagrams of centralized and decentralized grids with buildings and other structures circled and linked to each other

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Power grid resilience, asynchronous communication for HPC workloads, trustworthy AI, & LLM-boosted compiler optimization. It's all right here in the latest CASC newsletter: computing.llnl.gov/casc/news…
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ALT diagrams of centralized and decentralized grids with buildings and other structures circled and linked to each other

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Attn students! Ready to solve real-world challenges, contribute to work with national impact, & build skills that set you apart in the tech industry? The application window is open for Spring/Summer 2027 internships until Jan. 15. computing.llnl.gov/careers/i…
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ALT large group of students posed together outside the main Computing building on a sunny day

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Happening now at @GTCSE: the sixth annual MFEM community workshop featuring the latest advances in finite elements. Many of the talks this week will be given by students. 😎 mfem.org/workshop
Text overlay (MFEM community Workshop, September 22-25, 2026, Georgia Tech + Zoom, Register by Sept 11) with MFEM logo and two simulations with blue and red gradient treatment

ALT Text overlay (MFEM community Workshop, September 22-25, 2026, Georgia Tech + Zoom, Register by Sept 11) with MFEM logo and two simulations with blue and red gradient treatment

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LLNL Computing retweeted
GaTech CSE (@GTCSE) profile picture
GaTech CSE@GTCSESep 22
Welcome to Georgia Tech, MFEM community! 🐝💻 The 2026 MFEM Community Workshop kicked off today with a hands-on tutorial introducing researchers to the open-source software that powers simulations across science and engineering! 🔬⚙️ 📸 Enjoy a few scenes from today's tutorial!
Image from GaTech CSE (@GTCSE)
Image from GaTech CSE (@GTCSE)
Image from GaTech CSE (@GTCSE)
Image from GaTech CSE (@GTCSE)
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Last call to register for our final open-source HPC software tutorial! September 29 = in situ visualization & analysis of simulations with Ascent. Sign up: hpcic.llnl.gov/2026-hpc-tuto…
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Hot off the presses! Check out the latest newsletter from our Center for Applied Scientific Computing @Livermore_Lab: computing.llnl.gov/casc/news…
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ALT diagrams of centralized and decentralized grids with buildings and other structures circled and linked to each other

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ICYMI Kathryn Mohror has been selected as SC27 general chair! "HPC is stronger because we’re leveraging ideas across fields and pushing the boundaries of what is possible," she says. computing.llnl.gov/about/new…
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