FZ ZF Joint workshop at Virginia Tech October 2025

  5 minute read  

Thank you for considering attending the FZ/ZF Joint workshop at Virginia Tech in Alexandria, Virginia!

Dates, address, contact:

Tentative Schedule

Schedule is subject to change

September 30

Some people might arrive early and have dinner together

October 1

08:30 AM Meeting Preparation

9:00 AM Opening Session

  • 09:00 AM Brief Welcome Virgina Tech, Program Managers, and Meeting Logistics
  • 09:30 AM Welcome and Project Overview [Franck Cappello – Principle Investigator (FZ and ZF), UChicago/ANL]
  • 9:45 AM Application Highlight: TeZIP and Spring8 [Amarjit Sighn, Riken-RCCS]
  • 09:55 AM ZF Highlight 1: Adapting Rate Distortion Theory to Scientific Data [Sujata Sighn, VT]
  • 10:05 AM ZF Highlight 2: Enabling Efficient Error-controlled Lossy Compression for Unstructured Scientific Data (IPDPS 2025 Best Paper) [Sheng Di, UChicago/ANL]
  • 10:15 AM FZ Highlight 1: FZ Demonstration [Guoxi Liu, Ohio State]
  • 10:25 AM FZ Highlight 2: What to Support when You’re Compressing: The State of Practice, Gaps, and Opportunities for Scientific Data Compression (SC25 paper) [Robert Underwood UChicago/ANL]
  • 10:35 AM Application Highlight: Gromacs Molecular Dynamics [Petter Johansson, KTH]
  • 10:45 AM Application Highlight: E3SM Climate [Dali Wang, ORNL]
  • 10:55 AM Application Highlight: LCLS Crystallography [Chris O’Grady, SLAC]
  • 11:05 AM Application Highlight: NYX Cosmology [Zarija Lukic, LBNL]

11:15-12:30 Working Lunch

Topic: How to continue to expand the impact of FZ and ZF projects [Franck Cappello, UChicago/ANL]

12:30-13:45 ZF Thrust 1

  • [20m] Project Status [Lingja Liu, VT]
  • [15m] Thrust Short Talk 1: Randomized SVD for Compression: A Probabilistic Analysis of the Algorithms. [Vishwas Rao, ANL]
  • [15m] Thrust Short Talk 2: Early work on Distortion Metrics for Compressability – [Congrong Ren, Ohio State]
  • [20m] Thrust Discussion:. What quantities of interest (QoI) from the target applications do we want to prioritize for developing theory? [Lingja Liu, VT]

13:45-14:00 Break

14:00-15:15 ZF Thrust 2

  • [20m] Project Status [Hanqi Guo, Ohio State]
  • [15m] Thrust Short Talk 1: FourierZ: A spectrum-preservation scheme [Congrong Ren, Ohio State]
  • [15m] Thrust Short Talk 2: Topology Preserving Compression [Yuxiao Li, Ohio State]
  • [20m] Thrust Discussion: How can we best describe user QoIs? [Hanqi Guo, Ohio State]

15:15-15:30 Break

15:30-16:45 ZF Thrust 3

  • [20m] Project Status: [Sheng Di, UChicago/ANL]
  • [20m] Thrust Discussion: How can we leverage Thrust 1 (Compressibility Analysis) and Thrust 2 (QoI Preservation) to improve Lossy Compression Design? [Sheng Di, UChicago/ANL]
  • [15m] Thrust Short Talk 1: Randomized SVD Compression [Zhuoxun “Jason” Yang, Florida State]
  • [15m] Thrust Short Talk 2: Hypertiling with Tensor Train Decomposition [Amit Subrahmanya, ANL]

16:45-18:00 Poster Session

  • Advancing Exascale Collective Communications with Co-Designed Compression [Jiajun Huang, University of South Florida]
  • Modeling Propagation of Compression-Induced Errors in Lossy-Compressed Checkpoints for HPC Linear System Solvers [Bohan Zhang, ]
  • GPU Progressive Retrieval [Ruoyu Li, Florida State University]
  • Homomorphic Compression and Partial Retrevial [Longtao Zhang, Florida State University]
  • Lossy Compression for Energy Exascale Earth System Model Land Model (ELM) AI Training Models (AI4BGC) [Ruiheng Chen, ]
  • Heuristic Accelerated Search For Compressor Configuration [Robert Underwood, UChiago/ANL]
  • Mitigating Artifacts in Pre-quantization Based Scientific Data Compressors with Quantization-aware Interpolation [Pu Jiao, University of Kentucky, Remote]

Dinner

Groups will depart after the poster session for dinner

October 2

08:30 AM Meeting Preparation

9:00-10:15 FZ Thrust 1

  • [20m] Project Status: [Robert Underwood, UChicago/ANL]
  • [35m] Thrust Highlight: Recent Progress in Compilers for Compression [Shihui Song, University of Iowa]
  • [20m] Thrust Discussion: API Stability for the Interface and Module Library.

10:15-10:30 Break

10:30-11:45 FZ Thrust 2

  • [20m] Project Status: [Kai Zaho, Florida State and Skyler Ruiter, Indiana University]
  • [20m] Thrust Discussion: What New Modules Are Most Needed to be Ported [Kai Zhao, Florida State]
  • [15m] Thrust Short Talk 1: Fast and High-ratio Compression for APS Data [Yafan Huang, University of Iowa]
  • [15m] Thrust Short Talk 2: Extending GPU Research within FZ Project [JIannian Tian, Oakland University]

11:45-12:45 Working Lunch

Topic: AI for Compression and Compression for AI

12:45-15:00 FZ Thrust 3

  • [20m] Project Status: [Hanqi Guo, Ohio State]
  • [20m] Thrust Discussion: How to Improve the FZVis Tool to Serve Users? [Hanqi Guo]
  • [15m] Thrust Short Talk 1: FZ-VIS: An Interactive Web-Based Platform for Modern Lossy Compressor Design and Analysis [Guoxi Liu, Ohio State]
  • [15m] Thrust Short Talk 2: Direct Visualization of Lossy Compressed Data

15:00-15:15 Break

15:15-17:00 Parallel Breakouts

  • [choice 1] How Regions of Interest Impact Compressor Design [David Lenz, ANL]
  • [choice 2] Office Hours for Compression Libraries [Robert Unerwood, UChicago/ANL]

Dinner

Groups will depart after the poster session for dinner

October 3:

08:30 AM Meeting Preparation

9:00am Next steps planning [Franck Cappello, UChicago/ANL]

10:00am Hackathon (highlight slides, documentation, packaging)

12:00am Working lunch and closing remarks [Franck Cappello, UChicago/ANL]

Depart

Transportation/Participation

Where should I fly?: if you need to fly Washington Reagan National Airport (DCA) is about 5 minute metro ride on the blue/yellow line towards Franconia/Huntington to Potomac Yard station, with Washington Dulles (IAD) is about an hour away on the metro (<7$) take the sliver line from Dulles towards Largo/NewCarlton to Roslyn, then change trains to the blue line to Franconia. You can pay for the metro with your credit card and do not need to obtain a separate metro card. The metro in DC is relatively safe and is often faster than a car.

Where to stay? Hotel/accommodation information: you can find hotel discount codes provided by VT attached. If applicable, you can also use the Gov’t rate

What is changing in this edition?: Compared to Spring, the consensus of both teams is that it would be helpful to have more time for discussion between the projects. To facilitate that, it was proposed that some talks that were given as plenary in the last workshop be given as a poster session or as breakout sessions so discussion can happen in parallel and reduce the number of plenary talks. Additionally, it was suggested that as a general rule, because FZ plenary talks went on day one at the Spring meeting, the ZF team plenary talks would go on day 1 in the Fall meeting. The exact choice of breakout/plenary/posters will be made based on expressed interest, time, and space availability.

Remote Participation? We’ll do our best to accommodate remote participation, but in-person attendance is strongly preferred for active members of the project. External collaborators who attend remotely may do so at no cost.

Last modified September 24, 2025: update schedule (12b011b)