John N. Shadid

Computational Mathematics

Author profile picture

Computational Mathematics

jnshadi@sandia.gov

(505) 845-7876

Sandia National Laboratories, New Mexico
P.O. Box 5800
Albuquerque, NM 87185-1321

Biography

I am a Distinguished Member of the Technical Staff in the Computational Mathematics Department at Sandia National Laboratories.

My research interests include:

  • high performance computing, and parallel algorithm development,
  • numerical methods for multiple-time-scale nonlinear coupled PDEs,
  • temporal and spatial discretizations of PDEs,
  • scalable preconditioners for multiphysics PDE systems, with
  • applications to computational fluid dynamics, transport /reaction systems and magnetohydrodynamic systems modeling.

Education

  • Ph. D., Mechanical Engineering, University of Minnesota, 1989
  • M.S., Mathematics, University of Wisconsin – Milwaukee, 1982
  • Masters. Eng., Mechanical Engineering, University of Wisconsin – Milwaukee, 1981
  • B.S., Mechanical Engineering, University of Wisconsin – Milwaukee, 1980

Primary Positions

  • 2015 – Present National Lab Professor, Dept. of Mathematics and Statistics, University of New Mexico
  • 1998 – Present Distinguished Member of Technical Staff, Sandia National Laboratories
  • 1996 – 1998 Principal Member of Technical Staff, Sandia National Laboratories
  • 1989 – 1996 Senior Member of Technical Staff, Sandia National Laboratories

Service on Editorial Boards

  • Associate Editor for SIAM J. on Scientific Computing (Assoc. Editor January 2018 – 202)
  • Guest Editorial Board for SIAM J. on Scientific Computing (special issues 2012, 2014, 2016, 2018)
  • Associate Editor for JCP: Journal of Computational Physics (2008 – 2015)
  • Associate Editor for JUQ: Journal of Uncertainty Quantification (2012 – 2014)
  • SIAM Review (1998 – 2004)

Visiting, Consulting and Other Positions Held

  • 8/2014, 6/217 Short-term visitor at Mathematics Dept., Dortmund Univ., Germany
  • 3/2012 – 6/2012 Invited Senior Fellow for IPAM long Program in High Energy Density Plasmas, UCLA
  • 3/2011, 6/2013 Short-term visitor at Mathematics Dept., University Erlangen-Nurenburg, Germany
  • 1984 – 1989 Consulting Research Eng., GE Gas Turbine Division
  • 1981 – 1982 University Instructor, Mech, Eng. Dept. Univ. Wisconsin, Milwaukee

Publications

Ignacio Tomas, John N. Shadid, Matthias Maier, Abner Salgado, (2022). Final report of activities for the LDRD-CIS project #226834 titled: ?Asymptotic preserving methods for fluid electron-fluid models in the large magnetic field limit with mathematically guaranteed properties? https://www.osti.gov/search/identifier:1872178 Document ID: 1551033

Eric Christopher Cyr, John N. Shadid, Raymond S. Tuminaro, (2022). Preconditioners for Plasma Physics and Magnetohydrodynamics: Handling Multiple Timescales Preconditioning 2022International Conference on Preconditioning Techniques for Scientific and Industrial Applications Document ID: 1539805

Peter Brian Ohm, Jesus Bonilla, Edward Geoffrey Phillips, John N. Shadid, Jonathan J. Hu, Raymond S. Tuminaro, (2022). Block Preconditioning for Magnetic Confinement Fusion Relevant Resistive MHD Simulations 8th European Congress on Computational Methods in Applied Sciences and Engineering Document ID: 1539433

John N. Shadid, (2022). On Scalable Preconditioners for Implicit Continuum Multiphysics Plasma Systems 8th European Congress on Computational Methods in Applied Sciences and Engineering Document ID: 1539206

John N. Shadid, (2022). Scalable Solution of Implicit Continuum Models for Challenging Plasma Physics Systems Eighth European Seminar on Computing (ESCO 2022) Document ID: 1539040

Sidafa Conde, Imre Fekete, John N. Shadid, (2022). Embedded error estimation and adaptive step-size control for optimal explicit strong stability preserving Runge?Kutta methods Journal of Scientific Computing Document ID: 808893

Ari Edward Rappaport, John N. Shadid, Jehanzeb Chaudhry, (2022). An adjoint based a posteriori error analysis for MHD The 44th SIAM Southeastern Atlantic Section Conference Document ID: 1103873

Peter Brian Ohm, Jesus Bonilla de Toro, Edward Phillips, John N. Shadid, Jonathan J. Hu, Raymond S. Tuminaro, (2022). Block Preconditioning for Magnetic Confinement Fusion Relevant Resistive MHD Simulations 17th Copper Mountain Conference On Iterative Methods Document ID: 1493866

John N. Shadid, (2022). On Scalable Preconditioners for Implicit Continuum Multiphysics Plasma Systems 8th European Congress on Computational Methods in Applied Sciences and Engineering Document ID: 1493720

John N. Shadid, (2022). Scalable Solution of Implicit Continuum Models for Challenging Plasma Physics Systems Eighth European Seminar on Computing (ESCO 2022) Document ID: 1493734

John N. Shadid, (2022). Embedded pairs for optimal explicit strong stability preserving Runge-Kutta methods Journal of Computational and Applied Mathematics https://www.osti.gov/search/identifier:1870469 Document ID: 1493451

Peter Brian Ohm, Jonathan J. Hu, John N. Shadid, Eric Christopher Cyr, Raymond S. Tuminaro, Tobias A. Wiesner, (2022). A Monolithic Algebraic Multigrid Framework for Multiphysics Applications with Examples from Resistive MHD Electronic Transactions on Numerical Analysis Document ID: 1426688

Michael Meyers Crockatt, John N. Shadid, Roger P. Pawlowski, Sidafa Conde, Sibu Mabuza, Jesus Bonilla, (2021). Fluid Plasma Model Development in Drekar Trilinos User Group Meeting Document ID: 1403408

Ignacio Tomas, John N. Shadid, Michael Meyers Crockatt, Roger P. Pawlowski, Matthias Maier, Jean-Luc Guermond, (2021). Final report of activities for the LDRD-express project #223796 titled: ?Fluid models of charged species transport: numerical methods with mathematically guaranteed properties?, PI: Ignacio Tomas, Co-PI: John Shadid. https://www.osti.gov/search/identifier:1822320 Document ID: 1367376

Michael Meyers Crockatt, John N. Shadid, Sidafa Conde, Roger P. Pawlowski, Sibu Mabuza, (2021). Development of an Algorithmic Framework for the Simulation of Partially-Ionized Multifluid Plasma Systems with Arbitrarily Many Species Z Fundamental Science Program Workshop 2021 Document ID: 1343136

Michael Meyers Crockatt, John N. Shadid, (2021). Development, Implementation, and Verification of Partially-Ionized Collisional Multifluid Plasma Models in Drekar https://www.osti.gov/search/identifier:1817837 Document ID: 1329682

Peter Brian Ohm, Raymond S. Tuminaro, Jonathan J. Hu, John N. Shadid, Eric Christopher Cyr, Tobias Wiesner, (2021). An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems The 9th ediiton of the International Conference on Computational Methods for Coupled Problems in Science and Engineering https://www.osti.gov/search/identifier:1872519 Document ID: 1318805

Peter Brian Ohm, Raymond S. Tuminaro, John N. Shadid, Jonathan J. Hu, Tobias Wiesner, Eric Christopher Cyr, (2021). A Monolithic Algebraic Multigrid Approach for Coupled Multiphysics Problems using the MueLu Framework Cm202120th Copper Mountain Conference On Multigrid Methods https://www.osti.gov/search/identifier:1861027 Document ID: 1292489

Peter Brian Ohm, Raymond S. Tuminaro, John N. Shadid, Jonathan J. Hu, Tobias Wiesner, (2021). An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems SIAM Conference on Computational Science and Engineering https://www.osti.gov/search/identifier:1854312 Document ID: 1279979

John N. Shadid, (2021). On the performance of Krylov smoothing for fully coupled AMG preconditioners for VMS resistive MHD International Journal on Numerical Methods in Engineering Document ID: 1279613

Hennes Hajduk, Dmitri Kuzmin, Tzanio Kolev, Ignacio Tomas, John N. Shadid, (2021). Matrix-free subcell residual distribution for Bernstein finite elements: Monolithic limiting Computers and Fluids https://www.osti.gov/search/identifier:1769913 Document ID: 1279184

Peter Brian Ohm, Raymond S. Tuminaro, Jonathan J. Hu, John N. Shadid, Eric Christopher Cyr, Tobias Wiesner, (2021). An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems IX International Conference on Coupled Problems in Science and Engineering Document ID: 1267068

John N. Shadid, (2020). Progress on an IMEX Multifluid EM Plasma Formulation for Challenging Fusion Related Applications Wccm-eccomas Congress 2020 https://www.osti.gov/search/identifier:1834673 Document ID: 1243167

Michael Meyers Crockatt, John N. Shadid, Sidafa Conde, Roger P. Pawlowski, Sibu (Clemson) Mabuza, (2020). A Five-Moment Multifluid Model for Partially Ionized Plasmas With Arbitrarily Many Species Eccomas Congress 2020 (WCCM 2020) Document ID: 1243010

Roger P. Pawlowski, Eric T. Phipps, Christian Robert Trott, Eric Christopher Cyr, John N. Shadid, (2020). Finite Element Tools for Performance Portability of Implicit and IMEX Simulations on Next Generation Architectures 14th World Congress on Computational Mechanics (Virtual meeting) https://www.osti.gov/search/identifier:1833498 Document ID: 1242800

Ari Edward Rappaport, John N. Shadid, Jehanzeb Hameed Chauhdry, (2020). An a posteriori error analysis of the exact penalty formulation for stationary incompressible MHD Ccr Seminar https://www.osti.gov/search/identifier:1824914 Document ID: 1208743

John N. Shadid, (2020). Dimension reduction in magnetohydrodynamics power generation models: Dimensional analysis and active subspaces Stat Anal Data MinThe ASA Data Sci Journal, Document ID: 1162031

John N. Shadid, (2020). On Differentiable Local Bounds Preserving Stabilization For Euler Equations International J. Numeroical Methods in Engineering https://www.osti.gov/search/identifier:1639088 Document ID: 1054548

Richard Michael Jack Kramer, Eric Christopher Cyr, Sean Miller, Edward Geoffrey Phillips, Gregg Arthur Radtke, Allen C. Robinson, John N. Shadid, (2020). A Plasma Modeling Hierarchy and Verification Approach https://www.osti.gov/search/identifier:1608511 Document ID: 1104327

Michael Meyers Crockatt, John N. Shadid, Sidafa Conde, Roger P. Pawlowski, Sibu Mabuza, (2020). A five-moment multifluid model for partially ionized plasmas with arbitrarily many species 44th SIAM Southeastern Atlantic Section Conference Document ID: 1102765

John N. Shadid, (2020). Progress on an IMEX Multifluid EM Plasma Formulation for Challenging Fusion Related Applications 14th World Congress in Computational Mechanics and ECCOMAS Congress Document ID: 1079275

Michael Meyers Crockatt, John N. Shadid, Sidafa Conde, Roger P. Pawlowski, Sibu Mabuza, (2020). A Five-Moment Multifluid Model for Partially Ionized Plasmas With Arbitrarily Many Species 14th World Congress in Computational Mechanics (WCCM) Document ID: 1079280

John N. Shadid, (2019). Scalable Block Preconditioning of Implicit / IMEX FE Continuum Plasma Physics Models 2019 SIAM Conference on Analysis of Partial Differential Equations https://www.osti.gov/search/identifier:1643471 Document ID: 1067473

Eric Christopher Cyr, John N. Shadid, Raymond S. Tuminaro, Luis (LANL) Chacon, Roger P. Pawlowski, Edward Geoffrey Phillips, Sean Miller, (2019). Techniques for Simulating Multiple Timescales with Application to Plasmas Mathematics Seminar at the University of New Mexico https://www.osti.gov/search/identifier:1646409 Document ID: 1066867

John N. Shadid, (2019). Towards Multifluid Multiphysics Continuum Plasma Simulation for Modeling Magnetically-driven Experiments on Z} https://www.osti.gov/search/identifier:1571364 Document ID: 1031481

Eric Christopher Cyr, Sean Miller, Roger P. Pawlowski, Edward Geoffrey Phillips, Kristian Beckwith, Matthew Tyler Bettencourt, Keith Cartwright, Richard Michael Jack Kramer, Nathan V. Roberts, John N. Shadid, Sidney Shields, (2019). Implicit-Explicit Time Integration for a Mixed CG-DG Multi-Fluid Plasma Formulation 2019 International Conference on Numerical Simulation of Plasmas https://www.osti.gov/search/identifier:1642848 Document ID: 1020305

Sidafa Conde, Sibu Mabuza, John N. Shadid, Eric Christopher Cyr, Thomas M. Smith, Roger P. Pawlowski, (2019). On algebraic flux correction in continuous finite element schemes for problems in plasma physics Multimat https://www.osti.gov/search/identifier:1641928 Document ID: 1010027

John N. Shadid, (2019). Towards an IMEX Continuum Multifluid Electromagnetic Plasma Formulation for Challenging Fusion Related Applications MultiMat 20199th International Conference on Numerical Methods for Multi-Material Fluid Flow https://www.osti.gov/search/identifier:1641921 Document ID: 1009886

John N. Shadid, (2019). Update on Progress Towards Multifluid Electromagnetic Plasma Modeling for Neutral Gas Injection for TDS Web based ASCR/OFES SciDAC meeting for TDS https://www.osti.gov/search/identifier:1645876 Document ID: 1009598

Raymond S. Tuminaro, John N. Shadid, Eric Christopher Cyr, Paul Lin, Roger P. Pawlowski, Edward Geoffrey Phillips, Tobias Wiesner, James Adler, Tom Benson, Luis Chacon, Patrick Farrell, Ari Rappaport, Scott Maclachlan, Jonathan J. Hu, Luc Berger-Vergiat, Christian Alexander Glusa, Christopher Siefert, (2019). Scalable Preconditioners to Improve Time to Solution for Magnetohydrodynamics Applications Computer Science and Information Science External Review Board https://www.osti.gov/search/identifier:1645823 Document ID: 998732

Eric Christopher Cyr, Sean Miller, Edward Geoffrey Phillips, Kristian Beckwith, Matthew Tyler Bettencourt, Keith Cartwright, Richard Michael Jack Kramer, Roger P. Pawlowski, Nathan V. Roberts, John N. Shadid, Sidney Shields, (2019). Multi-Fluid Plasma Simulation with an IMEX CG/DG Discretization Z Fundamental Science Workshop 2019 https://www.osti.gov/search/identifier:1641633 Document ID: 998329

Sidafa Conde, John N. Shadid, Sigal Gottlieb, Zachary Grant, Imre Fekete, (2019). Progress on Development and Evaluation of Higher-order IMEX SSP Methods with Embedded Error Estimation: Application to Plasma Continuum Physics Models The US National Congress on Computational Mechanics https://www.osti.gov/search/identifier:1641440 Document ID: 997240

Sidafa Conde, John N. Shadid, Fekete Imre, (2019). Embedded Error Estimation for OptimalExplicit SSPRK Methods Siam Cse https://www.osti.gov/search/identifier:1641441 Document ID: 925386

Sidafa Conde, Zachary Grant, Sigal Gottlieb, John N. Shadid, (2019). Implicit and Implicit-Explicit Strong Stability Preserving Runge?Kutta Methods with High Linear Order Journal of Scientific Computing https://www.osti.gov/search/identifier:1574706 Document ID: 579045

Michael E. Cuneo, George Russell Laity, Allen C. Robinson, Thomas Anthony Gardiner, Matthew Tyler Bettencourt, John N. Shadid, Eric Christopher Cyr, Glen Hansen, Clayton Edward Myers, Kyle John Peterson, Kevin Leung, Dale Robert Welch, David Vincent Rose, Ryan D McBride, Daniel Sinars, (2019). Multi-Scale, Multi-Physics Plasma Hybrid Algorithms, Modeling, and Simulations APS DPP Discovery Plasma Science Community Planning Workshop https://www.osti.gov/search/identifier:1641379 Document ID: 996828

Sean Miller, Eric Christopher Cyr, John N. Shadid, Richard Michael Jack Kramer, Edward Geoffrey Phillips, Sidafa Conde, Roger P. Pawlowski, (2019). IMEX and exact sequence discretization of the multi-fluid plasma model Journal of Computational Physics https://www.osti.gov/search/identifier:1559495 Document ID: 985511

John N. Shadid, (2019). Scalable Block Preconditioning Methods for Solution of Implicit / IMEX Finite Element Continuum Plasma Physics Models PReconditioning 2019 https://www.osti.gov/search/identifier:1641002 Document ID: 984724

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, (2019). AMG-based preconditioners for fully-coupled Newton-Krylov methods for implicit continuum plasma simulations Iciam 2019 https://www.osti.gov/search/identifier:1640997 Document ID: 984722

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Sean Miller, (2019). Enabling Scalable Multifluid Plasma Simulations through Block Preconditioning 19th International Conference on Finite Elements in Flow Problems https://www.osti.gov/search/identifier:1640838 Document ID: 973945

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, (2019). Algebraic multigrid-based preconditioning for Newton-Krylov methods for implicit continuum plasma simulations Coupled Problems 2019 https://www.osti.gov/search/identifier:1640121 Document ID: 971911

Timothy Michael Wildey, Alex Gorodetsky, Anca Belme, John N. Shadid, (2019). Robust Uncertainty Quantification Using Response Surface Approximations Of Discontinuous Functions International Journal for Uncertainty Quantification https://www.osti.gov/search/identifier:1559480 Document ID: 948910

Sibusiso Mabuza, John N. Shadid, Sidafa Conde, Eric Christopher Cyr, Thomas M. Smith, Roger P. Pawlowski, Dmitri Kuzmin, (2019). On AFC algorithms for continuous Galerkin discretization of MHD equations Seminar Mathematics Department, Clemson University https://www.osti.gov/search/identifier:1644856 Document ID: 948802

Sibusiso Mabuza, John N. Shadid, Eric Christopher Cyr, Thomas M. Smith, Dmitri Kuzmin, (2019). Stabilized continuous finite element schemes for problems in plasma physics 20th International Conference on Fluid Flow Problems https://www.osti.gov/search/identifier:1639628 Document ID: 948294

Sibusiso Mabuza, John N. Shadid, Eric Christopher Cyr, Roger P. Pawlowski, Dmitri Kuzmin, (2019). A monotone linearity preserving nodal variation limiting algorithm for continuous Galerkin discretization of MHD equations Journal of Computational Physics https://www.osti.gov/search/identifier:1618098 Document ID: 936535

John N. Shadid, (2019). A Multilevel Approach for Trace System in HDG Discretizations Journal of Computational Physics https://www.osti.gov/search/identifier:1595938 Document ID: 913477

John N. Shadid, (2019). On Scalable Block Preconditioners for Implicit / IMEX FE Continuum Plasma Physics Models 19th Copper Mountain Conference On Multigrid Methods https://www.osti.gov/search/identifier:1639525 Document ID: 947579

John N. Shadid, (2019). Scalable Solution of Implicit / IMEX FE Continuum Plasma Physics Models SIAM Computational Science and Engnieering 2019 https://www.osti.gov/search/identifier:1602950 Document ID: 935553

Ari Edward Rappaport, John N. Shadid, Luc Berger-Vergiat, Raymond S. Tuminaro, Jehanzeb Chaudhry, (2019). Black Box Multigrid for MHD Siam Cse 2019 https://www.osti.gov/search/identifier:1601930 Document ID: 925088

John N. Shadid, (2019). Enabling Multiphysics Plasma Simulations by the Development of Stable, Accurate, and Scalable Computational Formulations and Solution Methods DOE Adv. Sci. Computing Reserach PI Meeting 2019 https://www.osti.gov/search/identifier:1596524 Document ID: 913387

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, (2019). Algebraic multigrid-based preconditioning for Newton-Krylov methods for implicit continuum plasma simulations VIII International Conference on Coupled Problems in Science and Engineering (Coupled 2019) Document ID: 913094

Sibusiso Mabuza, John N. Shadid, Eric Christopher Cyr, Thomas M. Smith, Dmitri Kuzmin, (2019). Stabilized continuous finite element schemes for problems in plasma physics Joint Mathematics Meetings https://www.osti.gov/search/identifier:1593213 Document ID: 902634

John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, (2019). AMG-based preconditioners for fully-coupled Newton-Krylov methods for implicit continuum plasma simulations 9th International Congress on Industrial and Applied Mathematics (ICIAM 2019) Document ID: 902041

John N. Shadid, (2018). On Scalable Solution of Implicit / IMEX FE Continuum Plasma Physics Models Univ. of New Mexico Mathematics Department Applied Math Seminar https://www.osti.gov/search/identifier:1574604 Document ID: 889447

Eric Christopher Cyr, Kristian Beckwith, Matthew Tyler Bettencourt, Keith Cartwright, Richard Michael Jack Kramer, Sean Miller, Roger P. Pawlowski, Edward Geoffrey Phillips, Nathan V. Roberts, John N. Shadid, (2018). EMPIRE-Fluid: Towards Multi-Fluid Plasma Simulations for EMP Necdc https://www.osti.gov/search/identifier:1594328 Document ID: 876509

Roger P. Pawlowski, Edward Geoffrey Phillips, John N. Shadid, Paul Lin, Eric Christopher Cyr, Sidafa Conde, Matthew Tyler Bettencourt, Eric T. Phipps, Christian Robert Trott, (2018). Developing a Hybrid Multi-fluid/PIC Plasma Capability Using Components Smoky Mountain Conputational Science and Engineering Conference https://www.osti.gov/search/identifier:1592043 Document ID: 853813

Roger P. Pawlowski, Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Sidafa Conde, Matthew Tyler Bettencourt, Eric T. Phipps, Stephen D Bond, Christian Robert Trott, (2018). Towards Towards a Hybrid Multi-fluid/PIC Plasma Capability 13th World Congress on Computational Mechanics https://www.osti.gov/search/identifier:1576717 Document ID: 841222

Raymond S. Tuminaro, tobias wiesner (Leica Geosystems AG), Eric Christopher Cyr, John N. Shadid, (2018). Monolithic Multigrid for Multiphysics Applications Arising from Resistive MHD 13th World Congress in Computational Mechanics https://www.osti.gov/search/identifier:1574277 Document ID: 841265

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, Eric Christopher Cyr, (2018). Performance of AMG-based preconditioners for fully-coupled Newton-Krylov methods for implicit continuum plasma simulations world congress on computational mechanics 2018 https://www.osti.gov/search/identifier:1806727 Document ID: 841299

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, Eric Christopher Cyr, Thomas M. Smith, (2018). AFC Algorithms for Continuous FE for HD & MHD Caarms24 https://www.osti.gov/search/identifier:1570149 Document ID: 830597

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, Christoph Lohmann, (2018). High order AFC algorithms based on Bernstein FE for nonlinear hyperbolic systems Bail 2018 https://www.osti.gov/search/identifier:1526445 Document ID: 808627

Sibusiso Mabuza, John N. Shadid, Eric Christopher Cyr, Thomas M. Smith, Dmitri Kuzmin, (2018). Algebraic flux correction algorithms in continuous FE schemes for HD & MHD Eccm-ecfd https://www.osti.gov/search/identifier:1526365 Document ID: 808556

John N. Shadid, (2018). Towards Algebraic Flux Correction Methods for Continuum Multifluid Electromagnetic Plasma Models 7th European Conference on Computational Fluid Dynamics (ECFD 7) https://www.osti.gov/search/identifier:1525933 Document ID: 808238

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, (2018). On AMG preconditioning for fully-coupled Newton-Krylov methods for implicit continuum plasma simulations 7th European Conference on Computational Fluid Dynamics (ECFD 2018) https://www.osti.gov/search/identifier:1523713 Document ID: 807779

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, Eric Christopher Cyr, (2018). Iterative limiters for continuous Galerkin discretization of hyperbolic conservation laws Document ID: 773244

Paul Lin, John N. Shadid, Paul Tsuji, (2018). Krylov smoothing for fully-coupled AMG preconditioners for VMS resistive MHD Finite Element in Flows 2017 https://www.osti.gov/search/identifier:1525607 Document ID: 795989

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2018). Scalable Preconditioners for Structure Preserving Discretizations of Maxwell Equations in First Order Form SIAM Journal on Scientific Computing https://www.osti.gov/search/identifier:1441484 Document ID: 784881

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, (2018). Fully-coupled and block/Schur complement based algebraic multigrid-based preconditioners for implicit continuum plasma simulations SIAM Conference on Applied Linear Algebra (SIAM-ALA18) https://www.osti.gov/search/identifier:1507041 Document ID: 784185

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, Eric Christopher Cyr, (2018). Nodal variational limiting for HD & MHD Oberseminar Applied Mathematics III Document ID: 611213

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Sean T. Miller, (2018). Block Preconditioners Informed by Plasma Timescales 15th Copper Mountain Conference on Iterative Methods https://www.osti.gov/search/identifier:1504324 Document ID: 773174

Pavel B. Bochev, Peter Andrew Bosler, Karen D. Devine, Mauro Perego, Kara J. Peterson, Andrew G. Salinger, John N. Shadid, Erik Gunnar Boman, Scott A. Mitchell, Timothy Michael Wildey, (2018). Slides for Presentation to Steve Lee Visit to SNL by Steve Lee Document ID: 772191

Roger P. Pawlowski, Matthew Tyler Bettencourt, Eric Christopher Cyr, Sean Miller, Edward Geoffrey Phillips, Eric T. Phipps, John N. Shadid, Christian Robert Trott, (2018). Towards Performance Portable Assembly Tools for Multi-Fluid Plasma Simulation SIAM Conference on Parallel Processing for Scientific Computing https://www.osti.gov/search/identifier:1498443 Document ID: 771561

Raymond S. Tuminaro, Luc Berger-Vergiat, Matthias Mayr, John N. Shadid, Eric Christopher Cyr, Massimiliano (Emory) Lupo Pasini, Peter (Tufts) Ohm, (2018). Leveraging Application Structure Within Next Generation Multigrid Solvers SIAM Conference on Parallel Processing for Scientific Computing https://www.osti.gov/search/identifier:1497566 Document ID: 771424

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, Eric Christopher Cyr, (2018). Scalable Newton-Krylov-AMG-based preconditioners for implicit continuum plasma simulations Siam Pp 2018 https://www.osti.gov/search/identifier:1575328 Document ID: 761205

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, (2018). On AMG preconditioning for fully-coupled Newton-Krylov methods for implicit continuum plasma simulations 7th European Conference on Computational Fluid Dynamics (ECFD 7) Document ID: 749958

Matthias Mayr, John N. Shadid, Sibusiso Mabuza, Eric Christopher Cyr, Edward Geoffrey Phillips, Thomas M. Smith, (2018). Implicit-explicit (IMEX) ALE methods for time integration of multi-physics CFD simulations World Congress on Computational Mechanics Document ID: 738501

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, Eric Christopher Cyr, (2017). Performance of AMG-based preconditioners for fully-coupled Newton-Krylov methods for Implicit Continuum Plasma Simulations 13th World Congress in Computational Mechanics Document ID: 738123

Eric Christopher Cyr, Gregory John von Winckel, Drew Philip Kouri, Thomas Anthony Gardiner, Denis Ridzal, John N. Shadid, Sean Miller, (2017). LDRD Report: Topological Design Optimization of Convolutes in Next Generation Pulsed Power Devices https://www.osti.gov/search/identifier:1413648 Document ID: 703405

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, (2017). Fully-coupled and block/Schur complement based algebraic multigrid-based preconditioners for implicit continuum plasma simulations SIAM Conference on Applied Linear Algebra (SIAM-ALA18) Document ID: 726191

Paul Lin, John N. Shadid, Paul (LLNL) Tsuji, (2017). On performance of Krylov smoothing for fully-coupled AMG preconditioners for VMS resistive MHD Computer Physics Communications https://www.osti.gov/search/identifier:1429689 Document ID: 725335

Sean Miller, Eric Christopher Cyr, John N. Shadid, Edward Geoffrey Phillips, (2017). Continuous and discontinuous IMEX-FEM for the multi-fluid plasma model 59th Annual Meeting of the APS Division of Plasma Physics https://www.osti.gov/search/identifier:1479190 Document ID: 714512

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Sean Miller, (2017). Block Preconditioning to Enable Physics-Compatible Implicit Multifluid Plasma Simulations 59th Annual Meeting of the APS Division of Plasma Physics https://www.osti.gov/search/identifier:1479051 Document ID: 714270

Edward Geoffrey Phillips, Matthew Tyler Bettencourt, Eric Christopher Cyr, Truman Everett Ellis, Richard Michael Jack Kramer, Duncan Alisdair Odum McGregor, Sean Miller, John Henry Judah Niederhaus, John N. Shadid, (2017). Stabilization of a Compatible Finite Element Plasma Discretization 25th International Conference on Numerical Simulation of Plasmas https://www.osti.gov/search/identifier:1471961 Document ID: 671802

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2017). Preconditioning Strategies for Physics-Conforming Implicit Electromagnetics and Plasma Simulations DOE ASCR Applied Mathematics Principal Investigators’ Meeting https://www.osti.gov/search/identifier:1471167 Document ID: 671617

John N. Shadid, (2017). Scalable Newton-Krylov-AMG Solution Methods for Implicit / IMEX Continuum Plasma Physics Models 2017 ASCR Applied Mathematics Principal Investigators Meeting https://www.osti.gov/search/identifier:1470818 Document ID: 671708

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, (2017). Local bounds preserving stabilization for continuous Galerkin discretization of hyperbolic systems Journal of Computational Physics https://www.osti.gov/search/identifier:1464187 Document ID: 637509

Eric Christopher Cyr, Gregory John von Winckel, Thomas Anthony Gardiner, Drew Philip Kouri, Sean Miller, John N. Shadid, (2017). Methods for Topological Design of Conducting Networks Coupled Problems https://www.osti.gov/search/identifier:1464677 Document ID: 625707

Matthew Tyler Bettencourt, Eric Christopher Cyr, Richard Michael Jack Kramer, Sean Miller, Roger P. Pawlowski, Edward Geoffrey Phillips, Allen C. Robinson, John N. Shadid, (2017). EMPIRE ? EM/PIC/Fluid Simulation Code ZFSP 2017Workshop and User MeetingFundamental Science With Pulsed Power https://www.osti.gov/search/identifier:1464676 Document ID: 638358

Matthew Tyler Bettencourt, Eric Christopher Cyr, Richard Michael Jack Kramer, Sean Miller, Roger P. Pawlowski, Edward Geoffrey Phillips, Allen C. Robinson, John N. Shadid, (2017). EMPIRE – EM/PIC/Fluid Simulation Code ZFSP 2017Workshop and User MeetingFundamental Science With Pulsed Power https://www.osti.gov/search/identifier:1464675 Document ID: 638359

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Sean Miller, (2017). Block Preconditioning Approaches to Compatible Electromagnetic and Plasma Discretizations International Conference On Preconditioning Techniques For Scientific And Industrial Applications https://www.osti.gov/search/identifier:1463401 Document ID: 658738

Sean Miller, Eric Christopher Cyr, John N. Shadid, Edward Geoffrey Phillips, (2017). On the use of compatible discretizations with the multi-fluid plasma model 59th Annual Meeting of the APS Division of Plasma Physics Document ID: 637920

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, Christoph Lohmann, (2017). Monotone LPS scheme for Bernstein finite elements for nonlinear hyperbolic systems 2017 SIAM Annual Meeting https://www.osti.gov/search/identifier:1460278 Document ID: 637508

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, (2017). Towards Scalable AMG-based Preconditioners for MHD and Multifluid Plasma Simulations 14th U.S. National Congress on Computational Mechanics (USNCCM14) https://www.osti.gov/search/identifier:1513626 Document ID: 637301

John N. Shadid, (2017). Towards Scalable and Efficient Solution of Full Maxwell Electromagnetics – Multifluid Plasma Systems Seminar at the Technical University of Dortmund in Germany. Also a collaborative visit with scietific open publishable research . Document ID: 625747

Sean Miller, Eric Christopher Cyr, John N. Shadid, Sidafa Conde, Edward Geoffrey Phillips, (2017). Implicit-Explicit Time Integration of the Multi-Fluid Plasma Model Using a Continuous Galerkin Spatial Discretization VII International Conference on Coupled Problems in Science and Engineering https://www.osti.gov/search/identifier:1458255 Document ID: 625331

John N. Shadid, (2017). Scalable and Efficient Solution of Full Maxwell Electromagnetics – Multifluid Plasma by AMG-based Approximate Block Factorization Preconditioners VII International Conference on Coupled Problems in Science and Engineering (Coupled 2017) https://www.osti.gov/search/identifier:1458267 Document ID: 625605

Matthias Mayr, Eric Christopher Cyr, John N. Shadid, Roger P. Pawlowski, Timothy Michael Wildey, Guglielmo Scovazzi, Xianyi Zeng, Edward Geoffrey Phillips, Sidafa Conde, (2017). Implicit-Explicit (IMEX) Time Integration for CFD & Multi-Physics Problems Mechanics & High Performance Computing Seminar https://www.osti.gov/search/identifier:1458227 Document ID: 625704

Matthias Mayr, Eric Christopher Cyr, John N. Shadid, Roger P. Pawlowski, Timothy Michael Wildey, Guglielmo Scovazzi, Xianyi Zeng, Edward Geoffrey Phillips, Sidafa Conde, (2017). Implicit-Explicit (IMEX) Time Integration for Multi-Physics: Application to ALE-based CFD Simulations VII International Conference on Coupled Problems in Science and Engineering https://www.osti.gov/search/identifier:1458228 Document ID: 625705

Tobias Albert Wiesner, Jonathan J. Hu, John N. Shadid, (2017). Multigrid for multiphysics using the MueLu framework VII International Conference on Coupled Problems in Science and Engineering https://www.osti.gov/search/identifier:1458131 Document ID: 625187

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, Paul (LLNL) Tsuji, David (U of Texas) Sondak, (2017). Algorithmic aspects and performance of AMG-based preconditioning for an implicit FE VMS resistive MHD model VII International Conference on Coupled Problems in Science and Engineering (Coupled Problems 2017) https://www.osti.gov/search/identifier:1458094 Document ID: 625264

Matthew Tyler Bettencourt, John N. Shadid, Eric Christopher Cyr, Edward Geoffrey Phillips, Richard Michael Jack Kramer, John Henry Judah Niederhaus, Allen C. Robinson, (2017). Performance Portable Multi-Species Plasma Code 44th International Conference on Plasma Science https://www.osti.gov/search/identifier:1367277 Document ID: 624193

Sean Miller, Eric Christopher Cyr, John N. Shadid, Edward Geoffrey Phillips, (2017). Implicit-explicit time integration of multi-fluid plasma models using compatible discretizations Sherwood Fusion Theory Conference https://www.osti.gov/search/identifier:1456750 Document ID: 622994

John N. Shadid, (2017). Enabling Multiphysics Plasma Simulations by the Development of Stable, Accurate and Scalable Computational Formulations and Solution Methods DOE Advanced Scientific Computing Research Project Review https://www.osti.gov/search/identifier:1456459 Document ID: 611352

John N. Shadid, (2017). Towards an IMEX Monolithic ALE Method with Integrated UQ for Multiphysics Shock-hydro https://www.osti.gov/search/identifier:1733246 Document ID: 530732

Tobias Albert Wiesner, John N. Shadid, Eric Christopher Cyr, Jonathan J. Hu, Raymond S. Tuminaro, (2017). MueLu – a multigrid framework for multiphysics preconditioners Copper Mountain Conference on Multigrid Methods https://www.osti.gov/search/identifier:1456404 Document ID: 610969

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2017). Enabling Scalable Multiphysics Simulations through Block Preconditioning 19th International Conference on Finite Elements in Flow Problems https://www.osti.gov/search/identifier:1456380 Document ID: 611131

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin (TU Dortmund University), (2017). Monotone local projection stabilization for nonlinear hyperbolic systems IACM 19th International Conference on Finite Elements in Flow Problems – FEF 2017 https://www.osti.gov/search/identifier:1456353 Document ID: 611227

Paul Lin, John N. Shadid, Roger P. Pawlowski, Matthew Tyler Bettencourt, Eric Christopher Cyr, (2017). Towards scalable and efficient implicit finite element simulations for plasma physics applications on HPC platforms IACM 19th International Conference on Finite Elements in Flow Problems – FEF 2017 https://www.osti.gov/search/identifier:1456373 Document ID: 611263

Eric Christopher Cyr, John N. Shadid, Timothy Michael Wildey, Edward Geoffrey Phillips, Allen C. Robinson, Roger P. Pawlowski, (2017). A Monolithic Arbitrary Lagrangian Eulerian Implicit-Explicit (IMEX) Method Multimat Document ID: 599626

Eric Christopher Cyr, Gregory John von Winckel, Thomas Anthony Gardiner, Drew Philip Kouri, Denis Ridzal, Sean Miller, John N. Shadid, (2017). Topology Optimization: Challenges, Algorithms and Applications Mathematics Colloquium and the Applied Mathematics Seminar https://www.osti.gov/search/identifier:1429279 Document ID: 610893

Sean Miller, John N. Shadid, Eric Christopher Cyr, Edward Geoffrey Phillips, (2017). Implicit-explicit time integration of multi-fluid plasma models using compatible discretizations Sherwood Fusion Theory Conference 2017 https://www.osti.gov/search/identifier:1429160 Document ID: 610607

Sibusiso Mabuza, John N. Shadid, Dmitri Kuzmin, (2017). Monotone local projection stabilization for nonlinear hyperbolic systems SIAM Conference on Computational Science and Engineering (CSE17) https://www.osti.gov/search/identifier:1426616 Document ID: 599434

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, Andrey (ORNL) Prokopenko, Paul (LLNL) Tsuji, (2017). Performance of Scalable AMG-based Preconditioners for MHD and Multifluid Plasma Simulations Siam Cse https://www.osti.gov/search/identifier:1424884 Document ID: 599602

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2017). Scalable Block Preconditioners for Maxwell’s Equations and Continuum Plasma Physics Models SIAM Conference on Computational Science and Engineering https://www.osti.gov/search/identifier:1424858 Document ID: 589172

Eric Christopher Cyr, Gregory John von Winckel, Thomas Anthony Gardiner, Drew Philip Kouri, Sean Miller, John N. Shadid, (2017). Topology optimization for design of coaxial cables SIAM conference on Computational Science and Engineering https://www.osti.gov/search/identifier:1425291 Document ID: 589165

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, (2017). owards Scalable AMG-based Preconditioners for MHD and Multifluid Plasma Simulations 14th U.S. National Congress on Computational Mechanics (USNCCM14 Document ID: 589193

Tobias Albert Wiesner, Raymond S. Tuminaro, Eric Christopher Cyr, John N. Shadid, Jonathan J. Hu, (2017). Multiphysics Preconditioning with the MueLu Multigrid Library SIAM Conference on Computational Science and Engineering (CSE) https://www.osti.gov/search/identifier:1458245 Document ID: 589306

John N. Shadid, (2017). Towards Scalable and Efficient Solution of Full Maxwell Electromagnetics – Multifluid Plasma Systems Domain Decomposition 24 Conference (host University of Bergen, Norway) https://www.osti.gov/search/identifier:1427405 Document ID: 578064

Roger P. Pawlowski, Roscoe Bartlett, Matthew Tyler Bettencourt, James Brian Carleton, Sidafa Conde, Eric Christopher Cyr, Kyungjoo Kim, Alejandro Mota, Mauro Perego, John N. Shadid, Gregory D. Sjaardema, Alexander Raymond Toth, Andrew Michael Bradley, William Spotz, Curtis C. Ober, Irina Kalashnikova Tezaur, (2017). ECP 1.3.3.03a Develop General CS Components for ATDM Applications ECP Annual Meeting 2017 https://www.osti.gov/search/identifier:1507624 Document ID: 577915

Sidafa Conde, Sigal Gottlieb, John N. Shadid, (2017). Implicit & Implicit-Explicit Strong Stability Preserving Runge-Kutta Methdos with High Linear Order SIAM Annual Meeting https://www.osti.gov/search/identifier:1575354 Document ID: 475964

Paul Lin, John N. Shadid, Jonathan J. Hu, Roger P. Pawlowski, Eric Christopher Cyr, (2017). Performance of Fully-coupled Algebraic Multigrid Preconditioners for Large-scale VMS Resistive MHD Journal of Computational and Applied Mathematics https://www.osti.gov/search/identifier:1411594 Document ID: 566462

Matthew Tyler Bettencourt, Janine Camille Bennett, Eric Christopher Cyr, Roger P. Pawlowski, Aram Markosyan, Christopher Hudson Moore, Edward Geoffrey Phillips, Allen C. Robinson, John N. Shadid, (2017). Performance Portabile Multi-species Plasma Code International Conference on Plasma Science Document ID: 567280

Paul Lin, John N. Shadid, Roger P. Pawlowski, Matthew Tyler Bettencourt, Eric Christopher Cyr, (2016). Towards scalable and efficient implicit finite element simulations for plasma physics applications on HPC platforms IACM 19th International Conference on Finite Elements in Flow Problems – FEF 2017 Document ID: 564849

Thomas M. Smith, John N. Shadid, Eric Christopher Cyr, Roger P. Pawlowski, Timothy Michael Wildey, (2016). Stabilized FE Simulation of Prototype Thermal-Hydraulics Problems with Integrated Adjoint-based Capabilities for %Error-estimation, Sensitivity Analysis and UQ Journal of Computational Physics https://www.osti.gov/search/identifier:1338379 Document ID: 207904

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Jonathan J. Hu, Paul Tsuji, Eric Christopher Cyr, Roger P. Pawlowski, David Sondak, (2016). Algorithmic aspects and performance of AMG-based preconditioning for implicit FE VMS resistive MHD model Coupled Problems 2017 Document ID: 553177

Raymond S. Tuminaro, Eric Christopher Cyr, John N. Shadid, David R. Noble, Luc Berger-Vergiat, Jonathan J. Hu, Andrey Prokopenko, Christopher Siefert, Tobias Albert Wiesner, Mauro Perego, Andrew G. Salinger, Irina Kalashnikova Tezaur, Stephen Price, (2016). Toward Robust Scalable Algebraic Multigrid Solvers UNM Applied Math & Statistics Seminar https://www.osti.gov/search/identifier:1406967 Document ID: 532614

Sean Miller, Eric Christopher Cyr, John N. Shadid, Sidafa Conde, Edward Geoffrey Phillips, (2016). Implicit-Explicit Time Integration of the Multi-Fluid Plasma Model Using a Continuous Galerkin Spatial Discretization Coupled Problems 2017 Document ID: 553170

Eric Christopher Cyr, John N. Shadid, Timothy Michael Wildey, Edward Geoffrey Phillips, Allen C. Robinson, Sean Miller, Roger P. Pawlowski, (2016). Implicit-Explicit (IMEX) Time Integration for Multi-Physics: Application to ALE and Plasma Simulation Necdc https://www.osti.gov/search/identifier:1401944 Document ID: 531600

Timothy Michael Wildey, John N. Shadid, Eric Christopher Cyr, Jehanzeb Chaudry, (2016). Adjoint Enhanced Methods for Uncertainty Quantification of Multiphysics Applications Nuclear Explosive Code Developers Conference (NECDC) https://www.osti.gov/search/identifier:1400047 Document ID: 531530

John N. Shadid, Edward Geoffrey Phillips, Eric Christopher Cyr, Roger P. Pawlowski, Matthew Tyler Bettencourt, Keith Cartwright, Paul Lin, Richard Michael Jack Kramer, John Henry Judah Niederhaus, Gregg Arthur Radtke, Allen C. Robinson, (2016). Towards Scalable and Efficient Solution of Full Maxwell Electromagnetics – Multifluid Plasma Systems Nuclear Explosives Code Development Conference 2016 https://www.osti.gov/search/identifier:1404787 Document ID: 531643

Richard Michael Jack Kramer, Sean Miller, John Henry Judah Niederhaus, Gregg Arthur Radtke, Matthew Tyler Bettencourt, Keith Cartwright, Eric Christopher Cyr, Edward Geoffrey Phillips, Allen C. Robinson, John N. Shadid, (2016). A Rigorous Verification Strategy for a Continuum Plasma Code Necdc 2016 https://www.osti.gov/search/identifier:1399198 Document ID: 530672

Paul Lin, John N. Shadid, Edward Geoffrey Phillips, Jonathan J. Hu, Andrey V Prokopenko, Eric Christopher Cyr, Roger P. Pawlowski, (2016). Performance of scalable AMG-based preconditioners for MHD and multifluid plasma simulations SIAM Conference on Computational Science and Engineering (CSE17) Document ID: 529290

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Howard C. (UMD) Elman, Roger P. Pawlowski, (2016). Block Preconditioners for Stable Mixed Nodal and Edge FE Representations of Incompressible Resistive MHD SIAM Journal on Scientific Computing Document ID: 528728

Edward Geoffrey Phillips, Eric Christopher Cyr, John N. Shadid, Raymond S. Tuminaro, (2016). Block Preconditioners for Mixed Discretization MHD and Continuum Plasma Simulations Enabled by Teko 12th World Congress on Computational Mechanics https://www.osti.gov/search/identifier:1373178 Document ID: 476656

Paul Lin, John N. Shadid, Jonathan J. Hu, Roger P. Pawlowski, Eric Christopher Cyr, Andrey V Prokopenko, (2016). Aspects of Large-scale Fully-coupled AMG Preconditioned FE Magnetohydrodynamic Simulations Enabled Through Trilinos world congress on compuational mechanics https://www.osti.gov/search/identifier:1372011 Document ID: 476179

Eric Christopher Cyr, John N. Shadid, Timothy Michael Wildey, Allen C. Robinson, Edward Geoffrey Phillips, Roger P. Pawlowski, (2016). Implicit-Explicit (IMEX) Time Integration for Multi-Physics: Application to ALE and Plasma Simulation Necdec Document ID: 475406

John N. Shadid, (2016). Towards Scalable and Efficient Solution of Full Maxwell Electromagnetics – Multifluid Plasma Systems Necdc 2016 Document ID: 475425

Timothy Michael Wildey, John N. Shadid, Eric Christopher Cyr, (2016). Adjoint Enhanced Methods for Uncertainty Quantification of Multiphysics Applications Nuclear Explosive Code Developers Conference (NECDC) https://www.osti.gov/search/identifier:1367627 Document ID: 475446

Eric Christopher Cyr, John N. Shadid, Timothy Michael Wildey, Allen C. Robinson, (2016). Implicit-Explicit (IMEX) Time Integration for Multi-Physics: Application to ALE and Plasma Simulation Necdec Document ID: 475341

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Roger P. Pawlowski, (2016). Fast Linear Solvers for Multifluid Continuum Plasma Simulations Nuclear Explosives Code Development Conference 2016 Document ID: 475367

John N. Shadid, (2016). Scalable Solution Methods for Multiple-time-scale Plasma Physics Models that Enable Beyond Forward Simulations Rocky Mountain Mathematics Consortium (RMMC) Summer Workshop https://www.osti.gov/search/identifier:1514558 Document ID: 464865

John N. Shadid, (2016). Towards Adjoint-enabled Beyond Forward Simulation Capabilities for Multiple-time-scale Multiphysics CFD and MHD Systems Rocky Mountain Mathematics Consortium (RMMC) Summer Workshop https://www.osti.gov/search/identifier:1514557 Document ID: 464866

Richard Michael Jack Kramer, Matthew Tyler Bettencourt, Keith Cartwright, Eric Christopher Cyr, John Henry Judah Niederhaus, Edward Geoffrey Phillips, Gregg Arthur Radtke, Allen C. Robinson, John N. Shadid, (2016). A Rigorous Verification Strategy for a Continuum Plasma Code Necdc Document ID: 464953

Tobias Albert Wiesner, John N. Shadid, Eric Christopher Cyr, Raymond S. Tuminaro, Jonathan J. Hu, (2016). Multigrid framework for multiphysics problems SIAM Annual Meeting 2016 https://www.osti.gov/search/identifier:1368650 Document ID: 464652

John N. Shadid, (2016). Scalable Solution Methods for Multiple-time-scale Multi-physics Plasma Simulations CIS External Review Baord https://www.osti.gov/search/identifier:1368939 Document ID: 464151

John N. Shadid, (2016). Scalable Solution Methods for Multiple-time-scale Plasma Physics \\ Models that Enable Beyond Forward Simulations 2016 Summer Conference Rocky Mountain Mathematics (RMMC ) Consortium https://www.osti.gov/search/identifier:1368731 Document ID: 464211

John N. Shadid, (2016). Towards Adjoint-enabled Beyond Forward Simulation Capabilities for Multiple-time-scale Multiphysics CFD and MHD Systems 2016 Summer Conference Rocky Mountain Mathematics (RMMC ) Consortium https://www.osti.gov/search/identifier:1514536 Document ID: 464213

John N. Shadid, (2016). A Subjective Perspective on Computational Mathematics Careers at a National Laboratory 2016 Summer Conference Rocky Mountain Mathematics (RMMC ) Consortium https://www.osti.gov/search/identifier:1368732 Document ID: 464215

Matthew Tyler Bettencourt, Eric Christopher Cyr, Roger P. Pawlowski, Richard Michael Jack Kramer, Edward Geoffrey Phillips, John N. Shadid, Allen C. Robinson, (2016). Performance Portable Assembly For Plasma Fluid Equations eccomas https://www.osti.gov/search/identifier:1368901 Document ID: 464110

Matthew Tyler Bettencourt, Eric Christopher Cyr, Roger P. Pawlowski, Richard Michael Jack Kramer, Edward Geoffrey Phillips, John N. Shadid, Allen C. Robinson, (2016). Performance Portable Assembly For Plasma Fluid Equations eccomas https://www.osti.gov/search/identifier:1368847 Document ID: 463878

Paul Lin, John N. Shadid, (2016). Evaluation of the performance of smoothers for fully-coupled algebraic multigrid preconditioners for implicit variational multiscale finite element resistive mag netohydrodynamics European Congress on Computational Methods in Applied Sciences and Engineering https://www.osti.gov/search/identifier:1368827 Document ID: 463790

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2016). Efficient Solution Methods for Electromagnetics and Multifluid Plasma Models European Congress on Computational Methods in Applied Sciences and Engineering https://www.osti.gov/search/identifier:1368826 Document ID: 463792

John N. Shadid, (2016). Towards Scalable Solution of Continuum Plasma Physics Models by Approximate Block Factorization Preconditioners Copper Mountain Conference on Iterative methods https://www.osti.gov/search/identifier:1365172 Document ID: 430257

Paul Lin, John N. Shadid, Jonathan J. Hu, (2016). Performance of smoothers for algebraic multigrid preconditioners for finite element variational multiscale incompressible magnetohydrodynamics Siam Pp https://www.osti.gov/search/identifier:1365070 Document ID: 431189

Gregory John von Winckel, Eric Christopher Cyr, Drew Philip Kouri, Denis Ridzal, Thomas Anthony Gardiner, John N. Shadid, (2016). Reduced and Full Space Methods in Topology Optimization: Applications in Linear Elasticity and Electrical Conduction Fourteenth Copper Mountain Conference On Iterative Methods https://www.osti.gov/search/identifier:1364862 Document ID: 430217

Andrey V Prokopenko, Paul Lin, John N. Shadid, Jonathan J. Hu, (2016). Speeding up multi-physics simulations through reuse of multigrid components Copper Mountain Conference on Iterative Methods https://www.osti.gov/search/identifier:1364816 Document ID: 430398

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2016). Block Solvers for Implicit Electromagnetic and Plasma Simulations 14th Copper Mountain Conference on Iterative Methods https://www.osti.gov/search/identifier:1348097 Document ID: 430066

Timothy Michael Wildey, Eric Christopher Cyr, John N. Shadid, Bart G van Bloemen Waanders, Drew Philip Kouri, Joseph E. Bishop, Simon Tavener, Troy Butler, Serge Prudhomme, Clint Dawson, (2016). Utilizing Adjoint-Based Techniques to Improve the Accuracy and Reliability in Uncertainty Quantification Research Collaboration WorkshopOptimization and Uncertainty Quantification in Energy and Industrial Applications https://www.osti.gov/search/identifier:1345103 Document ID: 408643

Paul Lin, John N. Shadid, Jonathan J. Hu, Roger P. Pawlowski, Eric Christopher Cyr, Andrey V Prokopenko, Paul Tsuji, (2016). Aspects of Large-scale Fully-coupled AMG Preconditioned FE Magnetohydrodynamic Simulations Enabled Through Trilinos World Congress on Computational Mechanics Document ID: 376318

Eric Christopher Cyr, John N. Shadid, Edward Geoffrey Phillips, Roger P. Pawlowski, Ben (UIUC) Seefeldt, (2015). Construction of Mixed Formulations and Scalable Preconditioners for Magnetohydrodynamics Seminar at the XPACC Center at UIUC https://www.osti.gov/search/identifier:1336272 Document ID: 365350

Paul Lin, John N. Shadid, (2015). Evaluation of the performance of smoothers for fully-coupled algebraic multigrid preconditioners for implicit variational multiscale finite element resistive magnetohydrodynamics European Congress on Computational Methods in Applied Sciences and Engineering Document ID: 365149

John N. Shadid, (2015). Solution of Eulerian Frame MHD Simulations with Multi-stage RK Implicit / Explicit (IMEX) Time integration U.S. National Congress Computational Mechanics https://www.osti.gov/search/identifier:1331908 Document ID: 319074

D. Kuzmin, John N. Shadid, (2015). A new approach to enforcing discrete maximum principles in continuous Galerkin methods for convection-dominated transport equations Journal of Computational Science https://www.osti.gov/search/identifier:1512882 Document ID: 353923

J. H. Chaudhry, J. B. Collins, John N. Shadid, (2015). A Posteriori Error Estimation for Multi-stage Runge-Kutta IMEX Schemes Applied Numerical Mathematics https://www.osti.gov/search/identifier:1371472 Document ID: 353924

Paul Lin, John N. Shadid, (2015). Performance of smoothers for algebraic multigrid preconditioners for finite element variational multiscale incompressible magnetohydrodynamics SIAM conference on parallel processing https://www.osti.gov/search/identifier:1333482 Document ID: 342977

Timothy Michael Wildey, John N. Shadid, Eric Christopher Cyr, John Davis Jakeman, Troy Butler, (2015). Adjoint-Based a Posteriori Error Estimation and Uncertainty Quantification for Transient Nonlinear Problems with Discontinuous Solutions Numerical Methods for Large-Scale Nonlinear Problems and Their Applications https://www.osti.gov/search/identifier:1323036 Document ID: 320824

John N. Shadid, (2015). Scalable Implicit / IMEX Resistive MHD with Stabilized Finite Element Methods and Fully-coupled Solution Methods ICERM Numerical Methods for Large-Scale Nonlinear Problems and Their Applications Document ID: 320827

Timothy Michael Wildey, John Davis Jakeman, Troy Butler, Eric Christopher Cyr, John N. Shadid, (2015). Adjoint-Based a Posteriori Error Estimation and Uncertainty Quantification for Shock-Hydrodynamic Applications US National Congress on Computational Mechanics https://www.osti.gov/search/identifier:1279685 Document ID: 318828

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, Roger P. Pawlowski, (2015). Block Preconditioners for Magnetohydrodynamics With Mixed Discretizations International Conference On Preconditioning Techniques For Scientific And Industrial Applications https://www.osti.gov/search/identifier:1257561 Document ID: 286770

Edward Geoffrey Phillips, John N. Shadid, Eric Christopher Cyr, (2015). Block Preconditioners for Resistive MHD in Vector Potential Form VI International Conference on Coupled Problems in Science and Engineering https://www.osti.gov/search/identifier:1258166 Document ID: 275720

John N. Shadid, (2015). Scalable Implicit / IMEX Resistive MHD with Stabilized Finite Element Methods and Fully-coupled Newton-Krylov-AMG Solution Methods Invited Lecture at TU Munich Computational Mechanics Dept. https://www.osti.gov/search/identifier:1514050 Document ID: 275599

John N. Shadid, (2015). Approximate Block Factorization Preconditioners for Scalable Solution of Multiphysics MHD Systems. Invited Lecture at TU Munich Computational Mechanics Dept. https://www.osti.gov/search/identifier:1514049 Document ID: 275601

John N. Shadid, (2015). Approximate Block Factorization Preconditioners for Scalable Solution of Multiphysics MHD Systems Sixth International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS 2015) https://www.osti.gov/search/identifier:1253568 Document ID: 275473

Eric Christopher Cyr, John N. Shadid, Timothy Michael Wildey, David M. Hensinger, Allen C. Robinson, William J. Rider, Guglielmo (Duke) Scovazzi, (2015). IMEX Lagrangian Methods Coupled Problems 2015 https://www.osti.gov/search/identifier:1253301 Document ID: 275497

Paul Lin, John N. Shadid, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, Andrey V Prokopenko, (2015). Fully-coupled Algebraic Multigrid Preconditioning Performance for Finite Element Resistive Magnetohydrodynamics Coupled Problems 2015 https://www.osti.gov/search/identifier:1252928 Document ID: 265314

Timothy Michael Wildey, John N. Shadid, Eric Christopher Cyr, Paul Constantine, (2015). Enabling Efficient Uncertainty Quantification Using Adjoint-based Techniques https://www.osti.gov/search/identifier:1179153 Document ID: 264484

John N. Shadid, (2015). Approximate Block Factorization Preconditioners for Scalable Solution of Multiphysics MHD Systems. Pan American Congresses on Computational Mechanics-‐ PANACM https://www.osti.gov/search/identifier:1249465 Document ID: 264726

Laura Painton Swiler, Michael S. Eldred, John N. Shadid, (2015). Whitepaper prepared for DOE Workshop on Integrated Simulations for Magnetic Fusion Energy Sciences https://www.osti.gov/search/identifier:1178923 Document ID: 254355

Paul Lin, John N. Shadid, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, Andrey V Prokopenko, (2015). On the Performance of Fully-Coupled Algebraic Multigrid Preconditioning at Large-Scale: Application to FEM CFD/MHD 1st Pan-American Congress on Computational Mechanics (PANACM 2015) https://www.osti.gov/search/identifier:1249295 Document ID: 264606

Paul Lin, John N. Shadid, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, Andrey V Prokopenko, (2015). Performance of Algebraic Multigrid Preconditioners for Large-Scale Finite Element Simulations Siam Cse 2015 https://www.osti.gov/search/identifier:1244447 Document ID: 232789

Timothy Michael Wildey, Eric Christopher Cyr, John N. Shadid, (2015). Utilizing Adjoint-Based Techniques to Effectively Perform UQ on Discontinuous Responses SIAM Conference on Computational Science and Engineering https://www.osti.gov/search/identifier:1246277 Document ID: 232332

Edward Geoffrey Phillips, Eric Christopher Cyr, John N. Shadid, (2015). Block Preconditioners for 3D Incompressible MHD with Mixed Finite Elements 2015 SIAM Conference on Computational Science and Engineering https://www.osti.gov/search/identifier:1241290 Document ID: 232390

John N. Shadid, Roger P. Pawlowski, Eric Christopher Cyr, Raymond S. Tuminaro, Luis Chacon, Paula D. Weber, (2014). Scalable Implicit Incompressible Resistive MHD with Stabilized FE and Fully-coupled Newton-Krylov-AMG Computer Methods in Applied Mechanics and Engineering https://www.osti.gov/search/identifier:1310309 Document ID: 219034

D. L. Sondak, John N. Shadid, A. A. Oberai, Roger P. Pawlowski, Eric Christopher Cyr, Thomas M. Smith, (2014). A new class of finite element variational multiscale turbulence models for incompressible magnetohydrodynamics Journal of Computational Physics https://www.osti.gov/search/identifier:1185020 Document ID: 219035

John N. Shadid, (2014). Scalable Implicit Resistive MHD with Stabilized Finite Element Methods and Fully-coupled Newton-Krylov-AMG Solution Methods Invited talk at Penn State https://www.osti.gov/search/identifier:1504042 Document ID: 208127

Eric Christopher Cyr, John N. Shadid, Edward Geoffrey Phillips, Raymond S. Tuminaro, Roger P. Pawlowski, Paul Lin, Luis (LANL) Chacon, (2014). Block Preconditioning for Multi-physics: From Jacobi to Schur Complements Project Meeting at Penn State https://www.osti.gov/search/identifier:1367654 Document ID: 208091

Paul Lin, John N. Shadid, Raymond S. Tuminaro, Marzio Sala, (2014). Performance of Multilevel Preconditioners for Flow and Transport SIAM Conference on Parallel Processing for Scientific Computation https://www.osti.gov/search/identifier:1367654 Document ID: 5220658

Stuart L. Kupferman, Roscoe Bartlett, Bart G van Bloemen Waanders, Roger P. Pawlowski, John N. Shadid, (2014). Optimization of a Chemical Vapor Deposition reactor with NAND and SAND PP04 SIAM Conference https://www.osti.gov/search/identifier:1367654 Document ID: 5220660

George A Samara, Paul Lin, Andrew G. Salinger, John N. Shadid, Bart G van Bloemen Waanders, (2014). Transport/Reaction and Source Inversion Algorithms/Software in Support of DHS Activities Department Homeland Security Advanced Scientific Computing PI Meeting https://www.osti.gov/search/identifier:1367654 Document ID: 5220919

Sandra Karen Begay, John N. Shadid, Raymond S. Tuminaro, Paul Lin, (2014). Multilevel Domain Decomposition Preconditioner Based on Aggregation Procedures Copper Mountain Conference on Multigrid Methods https://www.osti.gov/search/identifier:1367654 Document ID: 5221024

Paul Lin, John N. Shadid, Jonathan J. Hu, Eric Christopher Cyr, Roger P. Pawlowski, Andrey V Prokopenko, (2014). On the Performance of Fully-Coupled Algebraic Multigrid Preconditioning at Large-Scale: Application to FEM CFD/MHD 1st Pan-American Congress on Computational Mechanics (PANACM 2015) Document ID: 207796

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