Lawrence Livermore heads to the 35th annual Supercomputing Conference (SC23), which will be held in a hybrid format throughout November 12–17. Follow LLNL Computing (@Livermore_Comp) on Twitter/X with the hashtags: #LLNLatSC and #SC23. The Department of Energy (@NatLabsHPC) will also post to social media during the event.

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

Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | LLNL SC Committee Members

Sunday, Nov. 12

• 8:30am – 12:00pm | Workshop | 5th Workshop on Programming and Performance Visualization Tools (ProTools 2023) | David Boehme (organizer)
• 8:30am – 12:00pm | Workshop | HUST-23: 10th International Workshop on HPC User Support Tools | Elsa Gonsiorowski (organizer)
  • MSR-genie: Navigating Model Specific Registers across Processor Generations | Kyle Fan, Barry Rountree, Tapasya Patki, Aniruddha Marathe, Stephanie Brink, Duncan McFarlane, Eric Green, Kathleen Shoga (presenters)
• 8:30am – 5:00pm | Tutorial | Managing HPC Software Complexity with Spack | Todd Gamblin, Gregory Becker, Richarda Butler, Tamara Dahlgren (presenters)
• 9:00am – 12:30pm | Workshop | 1st Workshop on Enabling Predictive Science with Optimization and UQ in HPC
  • Uncertainty Quantification of Metal Additive Manufacturing Processing Conditions Through the Use of Exascale Computing | Robert Carson, James Belak (presenters)
• 9:00am – 12:30pm | Workshop | LLVM-HPC2023: The Ninth Workshop on the LLVM Compiler Infrastructure in HPC
  • OpenMP Kernel Language Extensions for Performance Portable GPU Codes | Thomas Scogland, Johannes Doerfert (presenters)
  • Precision and Performance Analysis of C Standard Math Library Functions on GPUs | Anton Rydahl, Ethan McDonough, Johannes Doerfert (presenters)
  • The State of LLVM for HPC | Anton Rydahl (panelist)
• 9:00am – 12:30pm | Workshop | RSDHA: Redefining Scalability for Diversely Heterogeneous Architectures
  • Accelerator Integration in a Tile-Based SoC: Lessons Learned with a Hardware Floating Point Compression Engine | Maya Gokhale (presenter)
• 1:30pm – 5:00pm | Workshop | 7th International Workshop on Software Correctness for HPC Applications (Correctness '23) | Ignacio Laguna (organizer)
  • Data Race Detection Using Large Language Models | Chunhua Liao (presenter)
• 2:00pm – 5:30pm | Workshop | IA^3 2023 - 13th Workshop on Irregular Applications: Architectures & Algorithms
  • Towards a Massive-Scale Distributed Neighborhood Graph Construction | Keita Iwabuchi, Trevor Steil, Min Priest, Roger Pearce, Geoffrey Sanders (presenters)
• 2:00pm – 5:30pm | Workshop | PDSW23: 8th International Parallel Data Systems Workshop
  • IOMax: Maximizing Out-of-Core I/O Analysis Performance on HPC Systems | Hariharan Devarajan, Kathryn Mohror (presenters)
  • Advancing Automated I/O Analysis with Multi-Perspective Views | Hariharan Devarajan, Kathryn Mohror (presenters)

Monday, Nov. 13

• 8:30am – 12:00pm | Workshop | 2023 International Workshop on Performance, Portability, and Productivity in HPC (P3HPC) | Judith Hill (organizer)
• 8:30am – 12:00pm | Workshop | AI Assisted Software Development for HPC (AI4DEV) | Giorgis Georgakoudis, Ignacio Laguna, Konstantinos Parasyris (organizers)
• 8:30am – 12:00pm | Tutorial | Mastering Tasking with OpenMP | Bronis de Supinski (presenter)
• 8:30am – 5:00pm | Workshop | WHPC@SC23: 16th International Women in HPC Workshop | Elsa Gonsiorowski (organizer)
• 9:00am – 12:00pm | Workshop | HiPar23: 4th Workshop on Hierarchical Parallelism for Exascale Computing | Ulrike Meier Yang (organizer)
• 9:00am – 12:30pm | Workshop | ISAV23: In Situ Infrastructures for Enabling Extreme-Scale Analysis and Visualization
  • A General Purpose Interface for Interactive Computational Steering Instrumentation Using Ascent | Cyrus Harrison, Nicole Marsaglia (presenters)
  • Using Umpire In-Situ for Improved Memory Performance | Kristi Belcher, David Beckingsale, Nicole Marsaglia, Marty McFadden (presenters)
• 9:00am – 12:30pm | Workshop | The 18th Workshop on Workflows in Support of Large-Scale Science (WORKS23) - Part 2 of 2
  • Scaling on Frontier: Uncertainty Quantification Workflow Applications Using ExaWorks to Enable Full System Utilization | Robert Carson, James Belak, Daniel Laney (co-authors)
  • Fluxion: A Scalable Graph-Based Resource Model for HPC Scheduling Challenges | Tapasya Patki, Daniel Milroy, Jae-Seung Yeom, Jim Garlick, Mark Grondona, Thomas Scogland (presenters)
• 9:00am – 12:30pm | Workshop | Tenth Workshop on Accelerator Programming and Directives (WACCPD 2023)
  • Memory Transfer Decomposition: Exploring Smart Data Movement through Architecture-Aware Strategies | Johannes Doerfert (presenter)
• 9:00am – 5:30pm | Workshop | 14th Workshop on Latest Advances in Scalable Algorithms for Large-Scale Heterogeneous Systems (ScalAH'23)
  • Massively Distributed Finite-Volume Flux Computation | Randolph Settgast (presenter)
• 9:30am – 10:00am | Inclusivity | Early Career Program: The Art of the Pitch | Andrekka Lanier (contributor), Stephanie Dempsey (session chair)
• 10:30am – 12:00pm | Students[at]SC | Psychological Safety Workshop | Andrekka Lanier (contributor)
• 1:30pm – 5:00pm | Tutorial | Advanced OpenMP: Host Performance and 5.2 Features | Bronis de Supinski (presenter)
• 1:30pm – 5:00pm | Tutorial | In-Situ Analysis and Visualization with Ascent and ParaView Catalyst | Cyrus Harrison, Nicole Marsaglia (presenters)
• 1:30pm – 5:00pm | Workshop | Workshop on Memory Technologies, Systems, and Applications | Maya Gokhale (organizer)
• 2:00pm – 5:30pm | Workshop | ExaMPI: Workshop on Exascale MPI
  • Optimizing Irregular Communication with Neighborhood Collectives and Locality-Aware Parallelism | Rui Peng Li (presenter)
• 3:30pm – 4:50pm | Students[at]SC | 1000 Verbal Cuts: An Overview of Microaggressions | Andrekka Lanier (contributor)
• 8:00pm – 8:30pm | DOE booth 243 | Introducing the High Performance Software Foundation (HPSF) and the Trillion Parameter Consortium

Tuesday, Nov. 14

• 8:30am – 5:00pm | Poster | Tools Support for Analysis and Auto-Tuning of Performance Portable Programs | David Boehme (co-author)
• 10:00am – 5:00pm | Posters
  • Exploring the Impacts of Multiple I/O Metrics in Identifying I/O Bottlenecks | Hariharan Devarajan, Kathryn Mohror (presenters)
  • Exploring Userspace Memory Mapping for RDMA-Enabled Network-Attached Memory | Maya Gokhale, Eric Green (co-authors)
  • Modeling Parallel Programs Using Large Language Models | Aniruddha Marathe, Harshitha Menon, Todd Gamblin (co-authors)
  • Performant Low-Order Matrix-Free Finite Element Kernels on GPE Architectures | Randolph Settgast, William Tobin, Nicola Castelletto, Yohann Dudouit, Ben Corbett (co-authors)
  • Quantum Task Offloading with the OpenMP API | Johannes Doerfert (co-author)
  • Scaling K-Path Centrality Using Optimized Distributed Data Structure | Lance Fletcher, Trevor Steil, Roger Pearce (co-authors)
  • Sophisticated Tools for Performance Analysis and Auto-Tuning of Performance Portable Parallel Programming | David Boehme (co-author)
  • Temporal Classification of Allocations for Reduced Memory Usage | Kristi Belcher, David Beckingsale, Marty McFadden (co-authors)
• 10:30am – 12:00pm | Exhibitor Forum | Chart Toppers | Jane Herriman (session chair)
• 12:00pm – 1:30pm | Students[at]SC | Alumni Networking Event | Lori Diachin (speaker)
• 12:15pm – 1:15pm | BoF | First Steps Toward Adopting Direct Liquid Cooled HPC | Chris DePrater (session leader)
• 1:30pm – 3:00pm | Exhibitor Forum | Machines I | Jane Herriman (session chair)
• 1:45pm – 2:30pm | DOE booth 243 | Delivering a Capable Exascale Computing Ecosystem for Exascale and Beyond | Lori Diachin (ECP director)
• 3:30pm – 4:00pm | Best Paper Finalist | Scalable Tuning of (OpenMP) GPU Applications via Kernel Record and Replay | Giorgis Georgakoudis, Ignacio Laguna, Konstantinos Parasyris, Johannes Doerfert (authors)
• 4:00pm – 4:30pm | Paper | Embracing Irregular Parallelism in HPC with YGM | Trevor Steil, Tashin Reza, Min Priest, Roger Pearce (authors)
• 4:00pm – 4:30pm | Paper | HPAC-Offload: Accelerating HPC Applications with Portable Approximate Computing on the GPU | Giorgis Georgakoudis, Konstantinos Parasyris, Harshitha Menon (authors)

Wednesday, Nov. 15

• 10:00am – 12:00pm | DOE booth 243 | Dynamically Allocating Resources within the Spack Build Pipeline | Caetano Melone (presenter)
• 10:30am – 11:00am | ACM Gordon Bell Climate Finalist | The Simple Cloud-Resolving E3SM Atmosphere Model Running on the Frontier Exascale System | Peter Caldwell, Aaron Donahue, Christopher Terai, Renata McCoy, David Bader (co-authors); read about the project at LLNL News
• 10:30am – 12:00pm | Paper | Handling Hardware Faults | Ignacio Laguna (session chair)
• 11:00am – 11:30am | Paper | Enhancing Adaptive Physics Refinement Simulations through the Addition of Realistic Red Blood Cell Counts | Erik Draeger (author)
• 12:15pm – 1:15pm | BoF | Enabling I/O and Computation Malleability in High-Performance Computing | Tapasya Patki (session leader)
• 12:15pm – 1:15pm | BoF | Integrating Cloud Infrastructure with Large Scale HPC Environments | Todd Gamblin (session leader)
• 12:15pm – 1:15pm | BoF | Toward a National Artificial Intelligence (AI) Research Resource for Strengthening and Democratizing AI R&D | Fred Streitz (session leader)
• 2:30pm – 3:15pm | DOE booth 243 | High-Performance Multiphysics Applications at LLNL | Jamie Bramwell, Aaron Skinner (speakers)
• 3:30pm – 5:00pm | Exhibitor Forum | Software | Nathan Hanford (session chair)
• 3:30pm – 5:00pm | Inclusivity | What’s Inclusivity Got to Do with HPC at SC conferences? | Tony Baylis (session chair)
• 3:30pm – 5:00pm | Panel | HPC and Cloud Converged Computing: Merging Infrastructures and Communities | Daniel Milroy, moderator; Todd Gamblin (panelist)
• 4:30pm – 5:00pm | Paper | A Quantitative Approach for Adopting Disaggregated Memory in HPC Systems | Maya Gokhale (author)
• 5:15pm – 6:45pm | BoF | The Green500: Trends in Energy-Efficient Supercomputing | Thomas Scogland (session leader)

Thursday, Nov. 16

• 10:30am – 12:00pm | Inclusivity | Inclusive Practices and Software Project Productivity | Mark Miller (session chair)
• 12:15pm – 1:15pm | BoF | Operational Data Analytics | Kathleen Shoga (session leader)
• 12:15pm – 1:15pm | BoF | Spack Community BoF | Gregory Becker, Todd Gamblin, Tamara Dahlgren (session leaders)
• 1:30pm – 2:00pm | Paper | Cloud Computing to Enable Wearable-Driven Longitudinal Hemodynamic Maps | Erik Draeger (author)
• 3:30pm – 5:00pm | Exhibitor Forum | Software & Networks | Nathan Hanford (session chair)

Friday, Nov. 17

• 8:00am – 12:00pm | Workshop | First International Workshop on HPC Testing and Evaluation of Systems, Tools, and Software (HPCTESTS 2023)
  • Toward Collaborative Continuous Benchmarking for HPC | Olga Pearce, Alec Scott, Gregory Becker, Riyaz Haque, Nathan Hanford, Stephanie Brink, Todd Gamblin (presenters)
  • Perspectives and Discussion | Olga Pearce (panelist)
• 10:30am – 12:00pm | Panel | The Golden Age of Compilers: Analyzing Cross-Cutting Issues and Opportunities across HPC and AI Domains | Johannes Doerfert (panelist)

LLNL SC Committee Members

• Adam Bertsch – Network security teams chair; Student volunteer reviewer
• Anna Maria Bailey – AD/AE appendices committee member; Workshops committee member
• Brian Van Essen – Machine learning and HPC committee member
• Clea Marples – Local arrangements chair
• Edgar Leon – Exhibitor forum chair
• Giorgis Georgakoudis – Birds of a feather committee member
• Hariharan Devarajan – AD/AE appendices committee member
• Ignacio Laguna – Programming frameworks and system software committee member
• Jamie Lewis – Student volunteer committee member
• Jamie Van Randwyk – Finance chair
• Judith Hill – Research posters committee member
• Kathleen Shoga – Architectures and networks committee member
• Kathryn Mohror – Technical program co-chair
• Loïc Pottier – ACM undergraduate posters committee member
• Lori Diachin – Special event chair
• Mark Miller – Demographics chair
• Michele Bianchini-Gunn – Infrastructure vice-chair
• Nikoli Dryden – Machine learning and HPC committee member
• Peer-Timo Bremer – Scientific visualizations & data analytics poster showcase committee member
• Sam Coleman – Student cluster competition committee member
• Stephanie Dempsey – Early career program chair; New volunteers chair
• Tal Ben-Nun – Performance measurement, modeling, and tools committee member
• Todd Gamblin – Performance measurement, modeling, and tools committee member; Test of time award committee member
• Tony Baylis – Inclusivity co-chair; HPC Illuminations Pavilion committee member
• Ulrike Meier Yang – Algorithms committee member