Author

Dong H. Ahn is Omniverse Infrastructure Architect (distinguished engineer and manager) at NVIDIA. He strives to extend his 20+ year experiences on extreme-scale HPC systems to scale Omniverse infrastructures and workflows to cloud data-center scales.

Prior to joining NVIDIA, Dong has worked for the Development Environment Group (DEG) in Livermore Computing (LC) between 2001 - 2022. In his last capacity he led the next-generation computing enablement (NGCE) project within the ASC ATDM program. During this period, Dong has worked on several code-development-tools and next-generation resource management and scheduling software framework projects with a common goal to provide highly capable and scalable software ecosystems for large computing systems. He has architected an extreme-scale debugging strategy that conceived the Stack Trace Analysis Tool (STAT), a 2011 R&D 100 Award winner, the PRUNERS Toolset, a 2017 R&D 100 Award finalist, and Flux (a next-generation workload manager), a 2021 R&D 100 Award winner. His current interest includes scalable approaches to managing the adverse impacts of non-determinism in concurrent execution, and to HPC resource and job management. Before he joined LLNL, Dong earned a Master’s degree in Computer Science in 2001 from the University of Illinois at Urbana-Champaign and had worked for National Center for Supercomputing Applications (NCSA), as a research assistant.