Stephen J. Thomas

Publication Activity (10 Years)

Years Active: 1990-2024
Publications (10 Years): 18

Top Topics

Top Venues

SIAM J. Sci. Comput.

Parallel Comput.

J. Comput. Phys.

Publications

Stephen J. Thomas, Erin C. Carson, Miroslav Rozlozník, Arielle Carr, Katarzyna Swirydowicz
Iterated Gauss-Seidel GMRES. SIAM J. Sci. Comput. 46 (2) (2024)
Stephen J. Thomas, Erin C. Carson, Miro Rozlozník, Arielle Carr, Kasia Swirydowicz
Post-Modern GMRES. CoRR (2022)
Daniel Bielich, Julien Langou, Stephen J. Thomas, Kasia Swirydowicz, Ichitaro Yamazaki, Erik G. Boman
Low-synch Gram-Schmidt with delayed reorthogonalization for Krylov solvers. Parallel Comput. 112 (2022)
Kasia Swirydowicz, Eric Darve, Wesley B. Jones, Jonathan Maack, Shaked Regev, Michael A. Saunders, Stephen J. Thomas, Slaven Peles
Linear solvers for power grid optimization problems: A review of GPU-accelerated linear solvers. Parallel Comput. 111 (2022)
Ahmad Abdelfattah, Hartwig Anzt, Erik G. Boman, Erin C. Carson, Terry Cojean, Jack J. Dongarra, Alyson Fox, Mark Gates, Nicholas J. Higham, Xiaoye S. Li, Jennifer A. Loe, Piotr Luszczek, Srikara Pranesh, Siva Rajamanickam, Tobias Ribizel, Barry F. Smith, Kasia Swirydowicz, Stephen J. Thomas, Stanimire Tomov, Yaohung M. Tsai, Ulrike Meier Yang
A survey of numerical linear algebra methods utilizing mixed-precision arithmetic. Int. J. High Perform. Comput. Appl. 35 (4) (2021)
Stephen J. Thomas, Arielle Carr, Kasia Swirydowicz, Marc Day
ILUT Smoothers for Hybrid C-AMG with Scaled Triangular Factors. CoRR (2021)
Daniel Bielich, Julien Langou, Stephen J. Thomas, Kasia Swirydowicz, Ichitaro Yamazaki, Erik G. Boman
Low-Synch Gram-Schmidt with Delayed Reorthogonalization for Krylov Solvers. CoRR (2021)
Kasia Swirydowicz, Eric Darve, Wesley B. Jones, Jonathan Maack, Shaked Regev, Michael A. Saunders, Stephen J. Thomas, Slaven Peles
Linear solvers for power grid optimization problems: a review of GPU-accelerated linear solvers. CoRR (2021)
Paul Mullowney, Ruipeng Li, Stephen J. Thomas, Shreyas Ananthan, Ashesh Sharma, Jon S. Rood, Alan B. Williams, Michael A. Sprague
Preparing an incompressible-flow fluid dynamics code for exascale-class wind energy simulations. SC (2021)
Luc Berger-Vergiat, Brian Kelley, Sivasankaran Rajamanickam, Jonathan J. Hu, Katarzyna Swirydowicz, Paul Mullowney, Stephen J. Thomas, Ichitaro Yamazaki
Two-Stage Gauss-Seidel Preconditioners and Smoothers for Krylov Solvers on a GPU cluster. CoRR (2021)
Ashesh Sharma, Shreyas Ananthan, Jayanarayanan Sitaraman, Stephen J. Thomas, Michael A. Sprague
Overset meshes for incompressible flows: On preserving accuracy of underlying discretizations. J. Comput. Phys. 428 (2021)
Stephen J. Thomas, Arielle Carr, Paul Mullowney, Ruipeng Li, Kasia Swirydowicz
Neumann Series in GMRES and Algebraic Multigrid Smoothers. CoRR (2021)
Katarzyna Swirydowicz, Julien Langou, Shreyas Ananthan, Ulrike Meier Yang, Stephen J. Thomas
Low synchronization Gram-Schmidt and generalized minimal residual algorithms. Numer. Linear Algebra Appl. 28 (2) (2021)
Ichitaro Yamazaki, Stephen J. Thomas, Mark Hoemmen, Erik G. Boman, Katarzyna Swirydowicz, James J. Elliott
-step and pipelined Krylov solvers in Trilinos. PPSC (2020)
Erin C. Carson, Kathryn Lund, Miroslav Rozlozník, Stephen J. Thomas
An overview of block Gram-Schmidt methods and their stability properties. CoRR (2020)
Ahmad Abdelfattah, Hartwig Anzt, Erik G. Boman, Erin C. Carson, Terry Cojean, Jack J. Dongarra, Mark Gates, Thomas Grützmacher, Nicholas J. Higham, Xiaoye Sherry Li, Neil Lindquist, Yang Liu, Jennifer A. Loe, Piotr Luszczek, Pratik Nayak, Srikara Pranesh, Sivasankaran Rajamanickam, Tobias Ribizel, Barry Smith, Kasia Swirydowicz, Stephen J. Thomas, Stanimire Tomov, Yaohung M. Tsai, Ichitaro Yamazaki, Ulrike Meier Yang
A Survey of Numerical Methods Utilizing Mixed Precision Arithmetic. CoRR (2020)
Stephen J. Thomas, Shreyas Ananthan, Shashank Yellapantula, Jonathan J. Hu, Michael Lawson, Mary Ann Sprague
A Comparison of Classical and Aggregation-Based Algebraic Multigrid Preconditioners for High-Fidelity Simulation of Wind Turbine Incompressible Flows. SIAM J. Sci. Comput. 41 (5) (2019)
Kasia Swirydowicz, Julien Langou, Shreyas Ananthan, Ulrike Meier Yang, Stephen J. Thomas
Low synchronization GMRES algorithms. CoRR (2018)
Gonzalo R. Rodríguez-Canosa, Stephen J. Thomas, Jaime del Cerro, Antonio Barrientos, Bruce A. MacDonald
A Real-Time Method to Detect and Track Moving Objects (DATMO) from Unmanned Aerial Vehicles (UAVs) Using a Single Camera. Remote. Sens. 4 (4) (2012)
Stephen J. Thomas, Bruce A. MacDonald, Karl A. Stol
Real-Time Robust Image Feature Description and Matching. ACCV (2) (2010)
Amik St.-Cyr, Martin J. Gander, Stephen J. Thomas
Optimized Multiplicative, Additive, and Restricted Additive Schwarz Preconditioning. SIAM J. Sci. Comput. 29 (6) (2007)
Stephen J. Thomas, Amik St.-Cyr
On the Accuracy of High-Order Finite Elements in Curvilinear Coordinates. International Conference on Computational Science (2) (2005)
John M. Dennis, Aimé Fournier, William F. Spotz, Amik St.-Cyr, Mark A. Taylor, Stephen J. Thomas, Henry M. Tufo
High-Resolution Mesh Convergence Properties and Parallel Efficiency of a Spectral Element Atmospheric Dynamical Core. Int. J. High Perform. Comput. Appl. 19 (3) (2005)
Amik St.-Cyr, Stephen J. Thomas
High-Order Finite Element Methods for Parallel Atmospheric Modeling. International Conference on Computational Science (1) (2005)
Stephen J. Thomas, Richard D. Loft
The NCAR Spectral Element Climate Dynamical Core: Semi-Implicit Eulerian Formulation. J. Sci. Comput. 25 (1-2) (2005)
Amik St.-Cyr, Stephen J. Thomas
Nonlinear OIFS for a Hybrid Galerkin Atmospheric Model. International Conference on Computational Science (3) (2005)
Stephen J. Thomas, John M. Dennis, Henry M. Tufo, Paul F. Fischer
A Schwarz Preconditioner for the Cubed-Sphere. SIAM J. Sci. Comput. 25 (2) (2003)
Stephen J. Thomas, Richard D. Loft
Semi-Implicit Spectral Element Atmospheric Model. J. Sci. Comput. 17 (1-4) (2002)
Stephen J. Thomas, Richard D. Loft, John M. Dennis
Parallel implementation issues: global versus local methods. Comput. Sci. Eng. 4 (5) (2002)
Richard D. Loft, Stephen J. Thomas, John M. Dennis
Terascale spectral element dynamical core for atmospheric general circulation models. SC (2001)
Stephen J. Thomas, Richard D. Loft
Parallel Semi-Implicit Spectral Element Methods for Atmospheric General Circulation Models. J. Sci. Comput. 15 (4) (2000)
Michel Desgagné, Stephen J. Thomas, Michel Valin
Performance of MC2 and the ECMWF IFS forecast model on the Fujitsu VPP700 and NEC SX-4M. Sci. Program. 8 (1) (2000)
Stephen J. Thomas, Andrei V. Malevsky, Michel Desgagné, Robert Benoit, Pierre Pellerin, Michel Valin
Massively Parallel Implementation of the Mesoscale Compressible Community Model. Parallel Comput. 23 (14) (1997)
Andrei V. Malevsky, Stephen J. Thomas, Robert Benoit, Michel Desgagné, Pierre Pellerin
Parallel simulation of compressible atmospheric flows: bubble convection. EUROSIM (1996)
Stephen J. Thomas, J. Côté
Massively parallel semi-Lagrangian advection. Simul. Pract. Theory 3 (4-5) (1995)
Stephen J. Thomas, J. Côté
Parallel Semi-Lagrangian Advection using PVM. EUROSIM (1994)
Daniel R. Ripoll, Stephen J. Thomas
A parallel Monte Carlo search algorithm for the conformational analysis of polypeptides. J. Supercomput. 6 (2) (1992)
Daniel R. Ripoll, Stephen J. Thomas
A parallel Monte Carlo search algorithm for the conformational analysis of proteins. SC (1990)