Nathan Russell Tallent

E-mail: tallent at pnnl dot gov
Office: CSF 1720
Telephone: 509.372.4206
Home Page:
[google scholar] [research gate]
Postal Address: Pacific Northwest National Laboratory
PO Box 999
MSIN: J4-30
Richland WA 99352
Delivery Address: Pacific Northwest National Laboratory
902 Battelle Blvd
Richland, WA 99354

Nathan Tallent is a computer scientist and lead for the Scalable Computing & Data team in the High Performance Computing Group within the Advanced Computing, Mathematics, and Data Division. He joined PNNL in 2011. He received a Ph.D. in 2010 from Rice University.

As leader of the Performance Lab for EXtreme Computing and daTa, his research is in the areas of performance analysis, parallelism, scalable and distributed architectures, and data-intensive analytics. His work spans the challenges of characterizing, modeling, analyzing, and accelerating the performance of current and emerging workloads in scientific workflows, data analytics, and domain modeling. His recent work has focused on exploiting dynamic inter-task data locality and minimizing data movement through storage, network, and memory. He is also interested in performance tools, models, and techniques for bottleneck diagnosis, online adaptation, and hardware-software co-design. A recent theme has been lightweight and scalable techniques for workloads with irregular parallelism, data structures, and access patterns.

He has led development of the following research software prototypes:

He is one of the original developers of HPCToolkit, a widely used suite of performance tools on supercomputers.

He contributed to OpenAD, a tool for automatic differentiation (AD) of numerical computer programs.