Background

Christopher Zimmer joined the Technology Integration (TechInt) group at ORNL as an HPC Systems Engineer in 2014. He was previously employed at Cisco Systems and worked on simulation based data plane and IO optimization. Christopher holds a PhD. in Computer Science from North Carolina State University where his work focused on real-time and high-performance message passing for network-on-chip processors. He also holds an MS in Computer Science from Florida State University where he researched architected register design to enable resource intensive compiler optimizations in register-constrained processors.

R&D Activities Contributions

Exploiting Node-Local, Non-Volatile Memory (NVM) - Spectral is a transparently applied library for taking advantage of the Summit Burst Buffer architecture. Applications using per-process output simply write to the node-local burst…

HPC Systems Scheduling Improvements - Resource selection can have profound impacts on the performance and reliability of applications running on the supercomputer. On Titan, there are on going efforts to…

Grand Unified Information Directory Environment (GUIDE) - GUIDE is a framework used to collect, federate, and analyze log data from OLCF, and to derive insights into facility operations based on the log…

Awards

2015 — Significant Event Award: Reducing Runtime Variability and Increasing System Efficiency on Titan