SC25 event calendar

Lawrence Livermore is participating in the 37th annual Supercomputing Conference (SC25) on November 16–21. Follow @Livermore_Comp on X with the hashtags: #LLNLatSC and #SC25. Check out the Department of Energy's (DOE) event website scdoe.info and @NatLabsHPC on social media.

All times are listed in Central Standard Time. Please see the Digital Experience page for information about which sessions will be available virtually. (BoF indicates Birds of a Feather.)

Sunday, Nov. 16

Start time CST	Session type	Event title (linked to description)	LLNL participants
8:30am	Tutorial	Mastering OpenMP Tasking: From Start to Free-Agent Tasks	Bronis de Supinski (presenter)
8:30am	Tutorial	Tools to Detect and Diagnose Floating-Point Errors in Heterogeneous Computing Hardware and Software	Ignacio laguna (presenter)
9:00am	Workshop	16th Workshop on Latest Advances in Scalable Algorithms for Large-Scale Heterogeneous Systems (ScalAH'25)	Erik Draeger (session chair)
1:30pm	Tutorial	Orchestrating Complex HPC and AI/ML Workflows on Kubernetes Using Flux and AWS	Daniel Milroy (presenter), Vanessa Sochat (presenter), Loïc Pottier (presenter)
2:00pm	Workshop	HUST-25: 12th International Workshop on HPC User Support Tools	Elsa Gonsiorowski (organizer)
2:00pm	Workshop	MEMO’25: International Workshop on Memory System, Management and Optimization	Maya Gokhale (session chair)
2:30pm	Workshop	HPC Digital Twins for Evaluating Scheduling Policies, Incentive Structures and Their Impact on Power and Cooling	Tapasya Patki (presenter)
3:45pm	Students [at] SC	Ignite Your Career: Career Panel	Jamie Lewis (session chair), Andrekka Lanier (moderator), Marisol Gamboa (panelist)

Monday, Nov. 17

Start time CST	Session type	Event title (linked to description)	LLNL participants
8:30am	Tutorial	Managing HPC Software Complexity with Spack	Todd Gamblin (presenter), Gregory Becker (presenter), Alec Scott (presenter), Kathleen Shea (presenter)
9:00am	Workshop	2025 International Workshop on Performance, Portability, and Productivity in HPC	Kenneth Weiss (session chair)
9:00am	Workshop	9th International Workshop on Software Correctness for HPC Applications (Correctness '25)	Ignacio laguna (organizer)
9:00am	Students [at] SC	Ignite Your Career: Resume Strategies for HPC	Jamie Lewis (session chair), Marisol Gamboa (presenter)
10:00am	Students [at] SC	Ignite Your Career: Portfolio Development for Professional Growth	Jamie Lewis (session chair)
10:30am	Workshop	Determining Levels of Detail for Simulators of Parallel and Distributed Computing Systems via Automated Calibration	Loïc Pottier (presenter)
11:20am	Workshop	Shaping the Future Workforce: Challenges and Lessons Learned in HPC Education from National Labs and Computing Centers	Erik Draeger (presenter), Jane Herriman (presenter)
1:30pm	Tutorial	Compression for Scientific Data	Peter Lindstrom (presenter)
2:00pm	Workshop	7th Workshop on Programming and Performance Visualization Tools (ProTools)	David Boehme (session chair)
2:00pm	Workshop	Usability Evaluation of Cloud for HPC Applications	Vanessa Sochat (presenter), Daniel Milroy (presenter), Abhik Sarkar (presenter), Aniruddha Marathe (presenter), Tapasya Patki (presenter)
2:01pm	Workshop	A Cache Interaction Graph for Data Locality Optimization	Bronis de Supinski (presenter)
4:45pm	Panel	Managing a Python Environment for Everyone	Todd Gamblin (panelist)
7:00pm	DOE booth #3802	Demo: Agentic Design of Inertial Confinement Fusion Capsules	Charles Jekel (presenter)

Tuesday, Nov. 18

Start time CST	Session type	Event title (linked to description)	LLNL participants
8:30am	Keynote	Welcome to SC25 / conference kickoff	Lori Diachin (general chair)
12:15pm	BoF	High Performance Software Foundation BOF	Todd Gamblin (session leader)
1:00pm	DOE booth #3802	ElMerFold: Exascale Distillation Workflows for Protein Structure Prediction on El Capitan	Brian Van Essen (presenter), Nikoli Dryden (presenter)
1:30pm	Paper	C.A.T.S.: Memory and Control Flow Tracing for Whole-Program Performance Analysis	Tal Ben-Nun (author)
1:52pm	Paper	Breaking the System Noise Barrier at Exascale	Edgar León (author), Trent D'Hooge (author), Brian Behlendorf (author), Nathan Hanford (author), Ramesh Pankajakshan (author), Matthew Leininger (author)
1:52pm	Gordon Bell finalist	Real-Time Bayesian Inference at Extreme Scale: A Digital Twin for Tsunami Early Warning Applied to the Cascadia Subduction Zone	Veselin Dobrev (author), John Camier (author), Tzanio Kolev (author)
3:30pm	Paper	XaaS Containers: Performance-Portable Representation with Source and IR Containers	Todd Gamblin (author)
3:52pm	Paper	Bridging the Gap Between Binary and Source-Based Package Management in Spack	Gregory Becker (author), Tamara Dahlgren (author), Nathan Hanford (author), Todd Gamblin (author)
5:15pm	BoF	Democratizing AI Accelerators for HPC Applications: Challenges, Success, and Support	Tal Ben-Nun (session leader), Brian Van Essen (session leader)
5:15pm	BoF	Emerging Challenges for AI/ML Workflows	Charles Doutriaux (session leader)
5:15pm	BoF	Ongoing/Commissioning Liquid Cooling Systems: Case Studies and a Systematic Guide	Chris DePrater (session leader)
5:15pm	Exhibit	Art of HPC: Meet the Artists: High-Resolution Acoustic–Gravity Simulation for Tsunami Early Warning in the Cascadia Subduction Zone	John Camier (author), Veselin Dobrev (author), Tzanio Kolev (author)

Wednesday, Nov. 19

Start time CST	Session type	Event title (linked to description)	LLNL participants
12:15pm	BoF	Communication Libraries in HPC and AI	Nikoli Dryden (session leader)
12:15pm	BoF	Spack Community BOF	Todd Gamblin (session leader), Gregory Becker (session leader), Alec Scott (session leader), Kathleen Shea (session leader)
1:30pm	Panel	System and Software Testing for Post-Exascale HPC: Challenges and Opportunities	Ignacio laguna (panelist)
5:00pm	DOE booth #3802	Demo: Flux + mpibind in Local Development Containers	William Hobbs (presenter)
5:15pm	BoF	An Integrated Deep Reinforcement Learning Agent for Sunfish and HPC Workload Manager Composable Disaggregated Resource Scheduling	Nathan Hanford (session leader)
5:15pm	BoF	Key Features Coming to OpenMP API Version 6.1	Bronis de Supinski (session leader), Tom Scogland (session leader), Kevin Sala (session leader)

Thursday, Nov. 20

Start time CST	Session type	Event title (linked to description)	LLNL participants
12:00pm	DOE booth #3802	Demo: Tapping into Job State with Flux “jobtap” Plugins	William Hobbs (presenter)
12:15pm	BoF	Converged HPC-AI Platforms: Navigating the Challenges of Heterogeneous Systems	Edgar León (session leader)
12:15pm	BoF	Meeting HPC Community Needs: How ACM SIGHPC, IEEE TCPP/TCHPC, and SIAG-SC/CSE Join Efforts to Engage Communities and Deliver Services	Judy Hill (session leader)
1:30pm	Panel	Research Software Engineering in the Age of AI	Harshitha Menon (panelist)
1:30pm	Paper	What to Support When You’re Compressing: The State of Practice, Gaps, and Opportunities for Scientific Data Compression	Peter Lindstrom (author)

Friday, Nov. 21

Start time CST	Session type	Event title (linked to description)	LLNL participants
9:00am	Workshop	First International Symposium on Artificial Intelligence and Extreme-Scale Workflows	Loïc Pottier (organizer)
9:05am	Workshop	Trillion-Parameter Foundation Models as Discovery Accelerators: Toward a Scientific Discovery Platform	Loïc Pottier (session chair)

LLNL SC Committee Members

Lori Diachin – Conference chair; Steering
Adam Bertsch – Digital experience SCinet liaison
Alec Scott – Exhibitor forum
Andrekka Lanier – Community engagement and support programming chair
Arturo Vargas – Student networking and mentoring
Brian Van Essen – HPC for machine learning
Chris White – Student networking and mentoring
Clay England – Security
Clea Marples – Executive director; Community engagement and support deputy chair
Cody Balos – Applications
Daniel Martin – Applications
David Boehme – Student volunteers reviewer; Posters
David Richards – Fiber; Applications
Edgar León – Signage chair
Erik Draeger – Applications
Hariharan Devarajan – System software and cloud computing; Tutorials
Harshitha Menon – Early career program; Performance measurement, modeling, & tools
Holly Auten – Communications
Ignacio Laguna – Programming frameworks
Jamie Lewis – Student programming chair; Student volunteers reviewer
Jamie Van Randwyk – Finance chair; Steering
Jane Herriman – Job fair chair
Jayanth Jagalur – HPC for machine learning
Jeffrey Hittinger – Technical papers chair
Johannes Doerfert – Programming frameworks
Kathleen Schmidt – Data analytics, visualization, & storage
Kathleen Shoga – Student cluster competition
Kathryn Mohror – Security chair; Test of time award; Steering
Katrina Trujillo – Contributor relations team deputy chair
Keita Iwabuchi – Posters
Kristen Howard – DOE booth
Kristi Belcher – Student networking and mentoring
Loïc Pottier – Posters
Marisol Gamboa – Student programming
Meg Epperly – DOE booth
Michele Bianchini-Gunn – Special events/busing
Nicole Marsaglia – Student volunteers reviewer
Nikoli Dryden – HPC for machine learning vice chair
Olga Pearce – System software and cloud computing
Peer-Timo Bremer – Posters
Qing Yi – Programming frameworks
Ramesh Pankajakshan – Workshops and symposiums
Rui Peng Li – Algorithms
Stephanie Brink – Student volunteers reviewer; Performance measurement, modeling, & tools; Workshops and symposiums
Stephanie Dempsey – Student networking and mentoring chair; Student volunteers reviewer
Sunshine Balingit – Network security
Tal Ben-Nun – Panels; HPC for machine learning
Tapasya Patki – Performance measurement, modeling, & tools vice chair
Thomas Scogland – Programming frameworks
Todd Gamblin – System software and cloud computing
Trent D’Hooge – Birds of a feather