Christopher J Zimmer HPC Systems Engineer Contact zimmercj@ornl.gov | 865.272.8725 All Publications Integrating quantum computing resources into scientific HPC ecosystems... CommBench: Micro-Benchmarking Hierarchical Networks with Multi-GPU, Multi-NIC Nodes Towards the Development of an Exascale Network Digital Twin 2022 Operational Assessment - OLCF... Frontier: Exploring Exascale Balancing Load in More Ways than One... Hvac: Removing I/O Bottleneck for Large-Scale Deep Learning Applications Approaching the Final Frontier: Lessons Learned from the Deployment of HPE/Cray EX Spock and Crusher supercomputers... A Step Towards the Final Frontier: Lessons Learned from Acceptance Testing of the First HPE/Cray EX 3000 System at ORNL... US Department of Energy, Office of Science High Performance Computing Facility Operational Assessment 2019 Oak Ridge Leadersh... Characterizing Output Bottlenecks of a Production Supercomputer: Analysis and Implications End-to-end I/O portfolio for the summit supercomputing ecosystem... An evaluation of the CORAL interconnects... Evaluating Burst Buffer Placement in HPC Systems... Scaling the Summit: Deploying the World's Fastest Supercomputer... AHEAD: A Tool for Projecting Next-Generation Hardware Enhancements on GPU-Accelerated Systems... Gpu Age-aware Scheduling to Improve the Reliability of Leadership Jobs on Titan The Design, Deployment, and Evaluation of the CORAL Pre-Exascale Systems... MiniApps derived from production HPC applications using multiple programming models... GUIDE: A Scalable Information Directory Service to Collect, Federate, and Analyze Logs for Operational Insights into a Leader... A Multi-Faceted Approach to Job Placement for Improved Performance on Extreme-Scale Systems Finally, A Way to Measure Frontend I/O Performance... Key Links ORCID NON-VOLATILE MEMORY (NVM) Organizations Computing and Computational Sciences Directorate National Center for Computational Sciences Advanced Technologies Section Technology Integration Group
