James R. Stewart

Area of research

Astronomy and Astrophysics · Control and Systems Engineering

Research interest

Since March 2022, Jim has served as the Acting Director of Sandia’s Center for Computing Research. From 2017-2022, he served as the Senior Manager of the Computational Sciences and Math Group, and previously served as Manager of the Optimization and Uncertainty Quantification Department and the Advanced Computational Mechanics Architectures Department. Jim is Sandia’s lead for the DOE Office of Science Advanced Scientific Computing Research (ASCR) program, which includes programmatic responsibility for Sandia’s Exascale Computing Project (ECP). He also leads Sandia’s Advanced Technology Development and Mitigation (ATDM) subprogram, which is part of DOE’s Advanced Simulation and Computing (ASC) program for stockpile stewardship. He has led major software development teams including the Dakota optimization and uncertainty quantification toolkit team, as well as the SIERRA computational mechanics framework team.

Stewart, J.R. (2019). Optimization Under Uncertainty for Design Materials and Large-Scale Computing [Presentation]. https://www.osti.gov/biblio/1644485 Publication ID: 67379

— 2019cited by 0position: selected

Stewart, J.R. (2018). Optimization Under Uncertainty for Predicting Properties and Performance [Conference Poster]. https://www.osti.gov/biblio/1592585 Publication ID: 64328

— 2018cited by 0position: selected

Stewart, J.R. (2018). Sandia’s Exascale Computing Project [Presentation]. https://www.osti.gov/biblio/1592313 Publication ID: 59100

— 2018cited by 0position: selected

Stewart, J.R. (2018). Computational Sciences and Math at Sandia — Algorithms Software and Applications [Conference Poster]. https://www.osti.gov/biblio/1806533 Publication ID: 63307

— 2018cited by 0position: selected

Stewart, J.R. (2018). Computational Mechanics R&D Opportunities at Sandia [Conference Poster]. https://www.osti.gov/biblio/1806532 Publication ID: 63306

— 2018cited by 0position: selected

Rizzi, F., Phipps, E.T., Hollman, D.S., Lifflander, J.J., Wilke, J., Markosyan, A., Kolla, H., Slattengren, N., Teranishi, K., Stewart, J.R., Clay, R.L., & Bennett, J.C. (2017). Tackling UQ in DARMA a Programming Model for Task-Based Execution at Extreme-Scale [Conference Poster]. https://www.osti.g

— 2017cited by 0position: selected

Stewart, J.R. (2016). Science-Based Computational Modeling: New Questions New Challenges and Big Data Problems [Presentation]. https://www.osti.gov/biblio/1618233 Publication ID: 49138

— 2016cited by 0position: selected

Stewart, J.R. (2014). Introduction & Overview UQ Challenge Benchmarks [Conference]. https://www.osti.gov/biblio/1141773 Publication ID: 40215

— 2014cited by 0position: selected

Stewart, J.R. (2013). 2013 Dakota releases provide users an array of new features . https://www.osti.gov/biblio/1675176 Publication ID: 31775

— 2013cited by 0position: selected

Robinson, A.C., Petney, S.V., Drake, R.R., Weirs, G., Adams, B.M., Vigil, D., Carpenter, J.H., Garasi, C.J., Wong, M.K., Robbins, J., Siefert, C., Strack, O.E., Wills, A.E., Trucano, T.G., Bochev, P., Summers, R.M., Stewart, J.R., Ober, C.C., Rider, W.J., … Niederhaus, J.H.J. (2013). ALEGRA Update:

— 2013cited by 0position: selected

Stewart, J.R. (2012). A V&V/UQ Framework for Science-Based Predictions [Conference]. https://www.osti.gov/biblio/1116373 Publication ID: 30235

— 2012cited by 0position: selected

Stewart, J.R. (2011). VUQ Focus Area [Conference]. https://www.osti.gov/biblio/1113291 Publication ID: 25748

— 2011cited by 0position: selected

Stewart, J.R. (2011). NEAMS VU Overview [Conference]. https://www.osti.gov/biblio/1118561 Publication ID: 25031

— 2011cited by 0position: selected

Stewart, J.R. (2011). Simulation Based Predictive Science [Conference]. https://www.osti.gov/biblio/1118545 Publication ID: 24779

— 2011cited by 0position: selected

Stewart, J.R. (2009). Verification Methods and NRC Regulations: A Brief Overview [Conference]. https://www.osti.gov/biblio/1142223 Publication ID: 16882

— 2009cited by 0position: selected

Stewart, J.R. (2009). NEAMS VU Verification Validation Uncertainty Quantification [Conference]. https://www.osti.gov/biblio/1141811 Publication ID: 16874

— 2009cited by 0position: selected

Stewart, J.R. (2009). NEAMS: Overview of Verification . https://www.osti.gov/biblio/1696871 Publication ID: 15987

— 2009cited by 0position: selected

Stewart, J.R. (2009). Verification Validation Uncertainty Quantification Predictive Modeling and Simulation: Integration of NW Capabilities into NEAMS [Presentation]. https://www.osti.gov/biblio/1698321 Publication ID: 15711

— 2009cited by 0position: selected

Stewart, J.R. (2008). UQ methods in DAKOTA employed by NuGET team to achieve critical QMU milestone . https://www.osti.gov/biblio/1710295 Publication ID: 13496

— 2008cited by 0position: selected

Stewart, J.R. (2007). SNL Perspectives on Petascale Environments [Conference]. https://www.osti.gov/biblio/1143301 Publication ID: 8995

— 2007cited by 0position: selected

Stewart, J.R. (2007). Stewart Grad Education Sessions [Conference]. https://www.osti.gov/biblio/1143354 Publication ID: 8976

— 2007cited by 0position: selected

Eldred, M.S., & Stewart, J.R. (2006). Solution Verification and Uncertainty Quantification Coupled . https://www.osti.gov/biblio/1724649 Publication ID: 8211

— 2006cited by 0position: selected

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