Jong Youl Choi Contact choij@ornl.gov | 865.241.1436 All Publications Extending the Publish/Subscribe Abstraction for High-Performance I/O and Data Management at Extreme Scale... Characterizing Output Bottlenecks of a Production Supercomputer: Analysis and Implications Understanding Performance-Quality Trade-offs in Scientific Visualization Workflows with Lossy Compression... A Co-Design Study Of Fusion Whole Device Modeling Using Code Coupling... Understanding Performance-Quality Trade-offs in Scientific Visualization Workflows with Lossy Compression... A Codesign Framework for Online Data Analysis and Reduction... Scalable Performance Awareness for In Situ Scientific Applications... Comparing the Efficiency of In Situ Visualization Paradigms at Scale... Harnessing Data Movement in Virtual Clusters for In-Situ Execution... Can I/O Variability Be Reduced on QoS-Less HPC Storage Systems?... Coupling Exascale Multiphysics Applications: Methods and Lessons Learned... A tight-coupling scheme sharing minimum information across a spatial interface between gyrokinetic turbulence codes... A View from ORNL: Scientific Data Research Opportunities in the Big Data Age Binning Based Data Reduction for Vector Field Data of a Particle-In-Cell Fusion Simulation... In Situ Analysis and Visualization of Fusion Simulations: Lessons Learned... Understanding and Modeling Lossy Compression Schemes on HPC Scientific Data Analysis and Modeling of the End-to-End I/O Performance on OLCF's Titan Supercomputer... TGE: Machine Learning Based Task Graph Embedding for Large-Scale Topology Mapping... Canopus: A Paradigm Shift Towards Elastic Extreme-Scale Data Analytics on HPC Canopus: Enabling Extreme-Scale Data Analytics on Big {HPC} Storage via Progressive Refactoring... Exacution: Enhancing Scientific Data Management for Exascale... Comprehensive Measurement and Analysis of the User-Perceived I/O Performance in a Production Leadership-Class Storage System... Exascale Storage Systems the SIRIUS Way... Towards Real-Time Detection and Tracking of Spatio-Temporal Features: Blob-Filaments in Fusion Plasma... Persistent Data Staging Services for Data Intensive In-situ Scientific Workflows... Pagination First page « First Previous page ‹‹ Page 1 Current page 2 Page 3 Next page ›› Last page Last » Key Links ORCID Organizations Computing and Computational Sciences Directorate Computer Science and Mathematics Division Mathematics in Computation Section Discrete Algorithms Group