Eric Christopher Cyr

Computational Mathematics

Computational Mathematics

eccyr@sandia.gov

(505) 844-0360

Sandia National Laboratories, New Mexico
 P.O. Box 5800
 Albuquerque, NM 87185-1320

Biography

Eric is a Principal Member of the Technical Staff at the Computer Science Research Institute at Sandia National Laboratories in Albuquerque, NM. His research focus is on simulation of multiphysics PDEs, advanced analysis techniques, scalable algorithms and scientific machine learning.

Education

  • PhD Computer Science, University of Illinois at Urbana-Champaign, 2008. (Thesis Title: Numerical Methods for Computing the Free Energy of Coarse-Grained Molecular Systems, Advisor: Stephen D. Bond)
  • BS Computer Science, Clemson University, 2002.

Publications

  • Roberts, N.V., Miller, S.T., Bond, S.D., Cyr, E.C., & Cyr, E.C. (2024). An implicit-in-time DPG formulation of the 1D1V Vlasov-Poisson equations. Computers and Mathematics with Applications, 154, pp. 103-119. https://doi.org/10.1016/j.camwa.2023.11.014 Publication ID: 123348
  • Cyr, E.C. (2024). A 2-Level Domain Decomposition Preconditioner for KKT Systems with Heat-Equation Constraints. Lecture Notes in Computational Science and Engineering, 149, pp. 463-470. https://doi.org/10.1007/978-3-031-50769-4_55 Publication ID: 124484
  • Cyr, E.C., Logemann, C., Reuter, B.W., McGregor, D.A.O., & McGregor, D.A.O. (2023). Coupling Kinetic PIC to Multi-Fluid Plasma Models using Compatible Discretizations [Conference Presenation]. https://doi.org/10.2172/2430514 Publication ID: 125744
  • Logemann, C., Cyr, E.C., McGregor, D.A.O., & McGregor, D.A.O. (2023). Gauss’ Law Preserving Methods for the Multi-Fluid Plasma Model [Conference Poster]. https://doi.org/10.2172/2432037 Publication ID: 131052
  • Roberts, N.V., Bond, S.D., Cyr, E.C., Miller, S.T., & Miller, S.T. (2022). Neural-network based collision operators for the Boltzmann equation. Journal of Computational Physics, 470. https://doi.org/10.1016/j.jcp.2022.111541 Publication ID: 80110
  • Cartwright, K.L., Pointon, T.D., Powell, T.C., Grabowski, T.C., Shields, S., Sirajuddin, D., Jensen, D.S., Renk, T.J., Cyr, E.C., Stafford, D., Swan, M.S., Mitra, S.S., McDoniel, W., Moore, C.H., & Moore, C.H. (2022). Progress in Modeling the 2019 Extended Magnetically Insulated Transmission Line (MITL) and Courtyard Environment Trial at HERMES-III. https://doi.org/10.2172/1890050 Publication ID: 80281
  • Roberts, N.V., Bond, S.D., Miller, S.T., Cyr, E.C., & Cyr, E.C. (2022). Fluid-Kinetic Coupling: Advanced Discretizations for Simulations on Emerging Heterogeneous Architectures (LDRD FY20-0643). https://doi.org/10.2172/1891588 Publication ID: 80339
  • Roberts, N.V., Bond, S.D., Cyr, E.C., & Cyr, E.C. (2022). DPG for Vlasov: Two Formulations and Selected Results [Conference Presenation]. https://doi.org/10.2172/2005303 Publication ID: 118660
  • Cyr, E.C., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., Moon, G., Patel, R., Lin, S., Heinkenschloss, M., & Heinkenschloss, M. (2022). Adapting Multigrid-in-Time to Train Deep Neural Networks [Slides] [Conference Presenation]. https://doi.org/10.2172/2004439 Publication ID: 116948
  • Roberds, N.A., Cartwright, K.L., Sandoval, A.J., Beckwith, K., Cyr, E.C., Bachman, W.B., & Bachman, W.B. (2022). Numerical simulation of a relativistic magnetron using a fluid electron model. Physics of Plasmas, 29(8). https://doi.org/10.1063/5.0090351 Publication ID: 80074
  • Cyr, E.C., Roberts, N.V., Bond, S.D., Miller, S., & Miller, S. (2022). Neural-Network Based Collision Operators for the Boltzmann Equation [Conference Presenation]. https://doi.org/10.2172/2003962 Publication ID: 115120
  • Roberts, N.V., Bond, S.D., Cyr, E.C., & Cyr, E.C. (2022). A DPG Space-Time Vlasov-Poisson Discretization with Adaptive Mesh Refinement [Conference Presenation]. https://doi.org/10.2172/2003970 Publication ID: 115152
  • Cyr, E.C., Trask, N.A., Henriksen, A., Martinez, C., & Martinez, C. (2022). A Two-Level Scheme for Training Partition of Unity Networks [Conference Presenation]. https://doi.org/10.2172/2004169 Publication ID: 115912
  • Cyr, E.C., Shadid, J.N., Tuminaro, R.S., & Tuminaro, R.S. (2022). Preconditioners for Plasma Physics and Magnetohydrodynamics: Handling Multiple Timescales [Conference Presenation]. https://doi.org/10.2172/2003400 Publication ID: 112932
  • Cyr, E.C., Moon, G., & Moon, G. (2022). Parallel-In-Time Training of Recurrent Neural Networks [Conference Presenation]. https://doi.org/10.2172/2002170 Publication ID: 109648
  • Cyr, E.C. (2022). Coupling Kinetic PIC to Multi-Fluid Plasma Models using Compatible Discretizations [Conference Presenation]. https://doi.org/10.2172/2001876 Publication ID: 108524
  • Moon, G.E., Cyr, E.C., & Cyr, E.C. (2022). PARALLEL TRAINING OF GRU NETWORKS WITH A MULTI-GRID SOLVER FOR LONG SEQUENCES [Conference Paper]. ICLR 2022 – 10th International Conference on Learning Representations. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85150378553&origin=inward Publication ID: 107704
  • Cyr, E.C., Saavedra, G., & Saavedra, G. (2021). Machine learning and spatial decomposition for large CT scans [Conference Presenation]. https://doi.org/10.2172/1903090 Publication ID: 77121
  • Moore, N.S., Cyr, E.C., Siefert, C., & Siefert, C. (2021). Learning an Algebriac Multrigrid Interpolation Operator Using a Modified GraphNet Architecture. https://doi.org/10.2172/1859673 Publication ID: 80563
  • Oldfield, R., Kramer, S., Rushdi, A., Bachman, W.B., Emery, J., Kuberry, P., Ray, J., Ackerman, S., Cyr, E.C., Saavedra, G., Hughes, C., Cardwell, S.G., Smith, J.D., & Smith, J.D. (2021). The ASC Advanced Machine Learning Initiative at Sandia National Laboratories: FY21 Accomplishments and FY22 Plans [Presentation]. https://www.osti.gov/biblio/1895016 Publication ID: 76429
  • Cyr, E.C., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., Moon, G., Patel, R., & Patel, R. (2021). A Layer-Parallel Approach for Training Deep Neural Networks [Conference Presenation]. https://doi.org/10.2172/1881678 Publication ID: 79775
  • Cyr, E.C. (2021). Perfection is the Enemy of Fast: The Case for Mathematically Induced Parallelism [Presentation]. https://www.osti.gov/biblio/1883495 Publication ID: 79107
  • Patel, R., Trask, N.A., Wood, M.A., Cyr, E.C., & Cyr, E.C. (2021). Modal Operator Regression for Extracting Nonlocal Continuum Models [Conference Presenation]. https://doi.org/10.2172/1881690 Publication ID: 79600
  • Ohm, P., Tuminaro, R.S., Hu, J.J., Shadid, J.N., Cyr, E.C., Wiesner, T., & Wiesner, T. (2021). An Algebraic Monolithic Method for Volume-coupled Multiphysics Problems [Conference Presenation]. https://doi.org/10.2172/1872519 Publication ID: 78786
  • Cyr, E.C., Gulian, M., Lee, K., Patel, R., Perego, M., Trask, N.A., & Trask, N.A. (2021). An Adaptive Basis Perspective to Improve Initialization and Accelerate Training of DNNs [Presentation]. https://www.osti.gov/biblio/1872708 Publication ID: 78814
  • Cyr, E.C., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., Moon, G., Patel, R., & Patel, R. (2021). A Layer-Parallel Approach for Training Deep Neural Networks [Presentation]. https://www.osti.gov/biblio/1872882 Publication ID: 78823
  • Patel, R., Trask, N.A., Wood, M.A., Cyr, E.C., & Cyr, E.C. (2021). A Physics-Informed Operator Regression Framework for Extracting Data-Driven Continuum Models [Conference Presenation]. https://doi.org/10.2172/1853856 Publication ID: 77404
  • Gulian, M., Patel, R., Trask, N.A., Cyr, E.C., & Cyr, E.C. (2021). A block coordinate descent optimizer for classification problems exploiting convexity [Conference Paper]. https://www.osti.gov/biblio/1855748 Publication ID: 77621
  • Cyr, E.C. (2021). Training Deep Neural Networks using Layer-Parallelism [Presentation]. https://www.osti.gov/biblio/1882375 Publication ID: 77809
  • Ohm, P., Tuminaro, R.S., Shadid, J.N., Hu, J.J., Wiesner, T., Cyr, E.C., & Cyr, E.C. (2021). A Monolithic Algebraic Multigrid Approach for Coupled Multiphysics Problems using the MueLu Framework [Conference Presenation]. https://doi.org/10.2172/1861027 Publication ID: 77864
  • Patel, R., Trask, N.A., Cyr, E.C., & Cyr, E.C. (2021). Multiscale training for Physics-informed Neural Networks [Conference Presenation]. https://doi.org/10.2172/1861255 Publication ID: 77876
  • Saavedra, G., Cyr, E.C., Schroder, J., Hewett, R., & Hewett, R. (2021). Model Parallelism with Spatial Decomposition of Volumetric Data for Deep Learning [Conference Presenation]. https://doi.org/10.2172/1847461 Publication ID: 77349
  • Manickam, I., Patel, R., Trask, N.A., Wood, M.A., Lee, M., Tomas, I., Cyr, E.C., & Cyr, E.C. (2021). Thermodynamically consistent physics-informed neural networks for hyperbolic systems [Conference Presenation]. https://doi.org/10.2172/1847572 Publication ID: 77371
  • Cyr, E.C., Gulian, M., Patel, R., Perego, M., Trask, N.A., & Trask, N.A. (2021). An Adaptive Basis Perspective to Improve Initialization and Accelerate Training of DNNs [Conference Presenation]. https://doi.org/10.2172/1847582 Publication ID: 77381
  • Patel, R., Trask, N.A., Gulian, M., Cyr, E.C., & Cyr, E.C. (2021). A block coordinate descent optimizer for classification problems exploiting convexity. CEUR Workshop Proceedings, 2964, pp. 1-12. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85116653183&origin=inward Publication ID: 73782
  • Laity, G., Robinson, A.C., Cuneo, M.E., Alam, K.M., Beckwith, K., Bennett, N.L., Bettencourt, M.T., Bond, S.D., Cochrane, K.R., Criscenti, L., Cyr, E.C., Bachman, W.B., Drake, R.R., Evstatiev, E.G., Fierro, A.S., Gardiner, T.A., Bachman, W.B., Goeke, R.S., Hamlin, N.D., … McBride, R. (2021). Towards Predictive Plasma Science and Engineering through Revolutionary Multi-Scale Algorithms and Models (Final Report). https://doi.org/10.2172/1813907 Publication ID: 75144
  • Bettencourt, M.T., Brown, D.A.S., Cartwright, K.L., Cyr, E.C., Glusa, C., Lin, P.T., Moore, S.G., McGregor, D.A.O., Pawlowski, R., Phillips, E., Roberts, N.V., Wright, S.A., Maheswaran, S., Jones, J.P., Jarvis, S.A., & Jarvis, S.A. (2021). EMPIRE-PIC: A performance portable unstructured particle-in-cell code. Communications in Computational Physics, 30(4), pp. 1232-1268. https://doi.org/10.4208/cicp.oa-2020-0261 Publication ID: 77552
  • Kookjin, L., Trask, N.A., Patel, R., Gulian, M., Cyr, E.C., & Cyr, E.C. (2020). Partition of unity networks: data-driven meshfree hp-approximation [Conference Paper]. https://www.osti.gov/biblio/1835970 Publication ID: 72183
  • Patel, R., Trask, N.A., Wood, M.A., Cyr, E.C., & Cyr, E.C. (2020). A physics-informed operator regression framework for extracting data-driven continuum models. Computer Methods in Applied Mechanics and Engineering, 373. https://doi.org/10.1016/j.cma.2020.113500 Publication ID: 73586
  • Pawlowski, R., Phipps, E.T., Trott, C.R., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2020). Finite Element Tools for Performance Portability of Implicit and IMEX Simulations on Next Generation Architectures [Conference Presenation]. https://doi.org/10.2172/1833498 Publication ID: 71970
  • Patel, R., Trask, N.A., Wood, M.A., Cyr, E.C., & Cyr, E.C. (2020). Learning continuum-scale models from micro-scale dynamics via Operator Regression [Conference Presenation]. https://doi.org/10.2172/1834283 Publication ID: 71999
  • Humphreys, D., Kupresanin, A., Canik, J., Chang, C.S., Cyr, E.C., Granetz, R., Hittinger, J., Kolemen, E., Lawrence, E., Pascucci, V., Patra, A., Schissel, D., & Schissel, D. (2020). Advancing Fusion with Machine Learning Research Needs Workshop Report. Journal of Fusion Energy, 39(4), pp. 123-155. https://doi.org/10.1007/s10894-020-00258-1 Publication ID: 99772
  • Gulian, M., Cyr, E.C., Patel, R., Perego, M., Trask, N.A., & Trask, N.A. (2020). Robust training and initialization of deep neural networks: an adaptive basis viewpoint [Conference Poster]. https://www.osti.gov/biblio/1808257 Publication ID: 74043
  • Miller, S., Roberts, N.V., Cyr, E.C., & Cyr, E.C. (2020). Machine Learning for Accelerating Direct-Simulation Monte-Carlo Collision Operators [Conference Poster]. https://www.osti.gov/biblio/1811433 Publication ID: 74240
  • Cyr, E.C., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., Ridzal, D., & Ridzal, D. (2020). A Layer-Parallel Approach for Training Deep Neural Networks [Presentation]. https://www.osti.gov/biblio/1812174 Publication ID: 74353
  • Mabuza, S., Shadid, J.N., Cyr, E.C., Pawlowski, R., Kuzmin, D., & Kuzmin, D. (2020). A linearity preserving nodal variation limiting algorithm for continuous Galerkin discretization of ideal MHD equations. Journal of Computational Physics, 410(C). https://doi.org/10.1016/j.jcp.2020.109390 Publication ID: 67858
  • Cyr, E.C., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., & Gauger, N.R. (2020). Layer-Parallel Training: Nested Iteration [Conference Poster]. https://www.osti.gov/biblio/1807445 Publication ID: 73803
  • Miller, S., Cyr, E.C., Phillips, E., Pawlowski, R., Beckwith, K., Bettencourt, M.T., Cartwright, K.L., Shields, S., & Shields, S. (2020). Discretization of the Multi-fluid Plasma Model using IMEX and Mixed Continuous/Discontinuous FEM [Conference Poster]. https://www.osti.gov/biblio/1770844 Publication ID: 73032
  • Kramer, R.M.J., Cyr, E.C., Miller, S., Phillips, E., Radtke, G.A., Robinson, A.C., Shadid, J.N., & Shadid, J.N. (2020). A Plasma Modeling Hierarchy and Verification Approach. https://doi.org/10.2172/1608511 Publication ID: 105788
  • Gunther, S., Ruthotto, L., Schroder, J.B., Cyr, E.C., Gauger, N.R., & Gauger, N.R. (2020). Layer-Parallel Training of Deep Residual Neural Networks. SIAM Journal on Mathematics of Data Science, 2(1), pp. 1-23. https://doi.org/10.1137/19M1247620 Publication ID: 65759
  • Cyr, E.C. (2020). Enabling 5G Distributed Scientific Data Analysis through Hierarchical Architectures and Algorithms [Conference Poster]. https://www.osti.gov/biblio/1765641 Publication ID: 72518
  • Cyr, E.C., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., & Gauger, N.R. (2020). A Layer-Parallel Approach for Training Deep Neural Networks [Conference Poster]. https://www.osti.gov/biblio/1766945 Publication ID: 72668
  • Chung, S.W., Bond, S.D., Cyr, E.C., Freund, J.B., & Freund, J.B. (2020). Regular sensitivity computation avoiding chaotic effects in particle-in-cell plasma methods. Journal of Computational Physics, 400(C). https://doi.org/10.1016/j.jcp.2019.108969 Publication ID: 64930
  • Phillips, E., Shadid, J.N., Cyr, E.C., Miller, S., & Miller, S. (2020). Enabling Scalable Multifluid Plasma Simulations Through Block Preconditioning [Conference Poster]. Lecture Notes in Computational Science and Engineering. https://doi.org/10.1007/978-3-030-30705-9_21 Publication ID: 69251
  • Cyr, E.C., Gulian, M., Patel, R., Perego, M., Trask, N.A., & Trask, N.A. (2020). Robust Training and Initialization of Deep Neural Networks: An Adaptive Basis Viewpoint [Conference Poster]. Proceedings of Machine Learning Research. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85162649507&origin=inward Publication ID: 74202
  • Cyr, E.C., Shadid, J.N., Tuminaro, R.S., Chacon, L., Pawlowski, R., Phillips, E., Miller, S., & Miller, S. (2019). Techniques for Simulating Multiple Timescales with Application to Plasmas [Presentation]. https://www.osti.gov/biblio/1646409 Publication ID: 66594
  • Cyr, E.C., Gulian, M., Patel, R., Perego, M., Trask, N.A., & Trask, N.A. (2019). Robust Training and Initialization of Deep Neural Networks: An Adaptive Basis Viewpoint [Conference Poster]. https://www.osti.gov/biblio/1643463 Publication ID: 66738
  • Roberts, N.V., Henneking, S.K.W., Miller, S., Cyr, E.C., & Cyr, E.C. (2019). Residual-Minimizing Approaches for Transient Problems on Next-Generation Computing Architectures [Conference Poster]. https://www.osti.gov/biblio/1643401 Publication ID: 66855
  • Cyr, E.C., Guenther, S., Schroder, J.B., & Schroder, J.B. (2019). Multilevel Initialization for Layer-Parallel Deep Neural Network Training [Conference Poster]. https://www.osti.gov/biblio/1643389 Publication ID: 66893
  • Cyr, E.C., Gulian, M., Patel, R., Perego, M., Trask, N.A., Ridzal, D., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., & Gauger, N.R. (2019). Improved Neural Network Training: Layer-Parallelism Least-squares and Initialization [Conference Poster]. https://www.osti.gov/biblio/1643364 Publication ID: 66945
  • Miller, S., Cyr, E.C., Bettencourt, M.T., Gardiner, T.A., Beckwith, K., Hamlin, N.D., Shields, S., & Shields, S. (2019). Hybrid fluid-kinetic models for high-energy-density plasmas [Conference Poster]. https://www.osti.gov/biblio/1642844 Publication ID: 65690
  • Cyr, E.C., Miller, S., Pawlowski, R., Phillips, E., Beckwith, K., Bettencourt, M.T., Cartwright, K.L., Kramer, R.M.J., Roberts, N.V., Shadid, J.N., Shields, S., & Shields, S. (2019). Implicit-Explicit Time Integration for a Mixed CG-DG Multi-Fluid Plasma Formulation [Conference Poster]. https://www.osti.gov/biblio/1642848 Publication ID: 65699
  • Shields, S., Cartwright, K.L., Miller, S., Pointon, T., Cyr, E.C., Beckwith, K., & Beckwith, K. (2019). Verification of a PIC-Fluid Hybrid Code With the Two-stream Plasma Instability Problem [Conference Poster]. https://www.osti.gov/biblio/1642851 Publication ID: 65705
  • Conde, S., Mabuza, S., Shadid, J.N., Cyr, E.C., Smith, T.M., Pawlowski, R., & Pawlowski, R. (2019). On algebraic flux correction in continuous finite element schemes for problems in plasma physics [Conference Poster]. https://www.osti.gov/biblio/1641928 Publication ID: 64769
  • Cyr, E.C., Ridzal, D., Guenther, S., Ruthotto, L., Schroder, J.B., Gauger, N.R., & Gauger, N.R. (2019). Exploiting ?time-domain? parallelism to accelerate neural network training and PDE constrained optimization [Presentation]. https://www.osti.gov/biblio/1807168 Publication ID: 64641
  • Shields, S., Cartwright, K.L., Pointon, T., Cyr, E.C., Beckwith, K., & Beckwith, K. (2019). Verification of a PIC-Fluid Hybrid Code With the Two-stream Plasma Instability Problem [Conference Poster]. https://www.osti.gov/biblio/1641814 Publication ID: 64650
  • Miller, S., Cyr, E.C., Bettencourt, M.T., Gardiner, T.A., Beckwith, K., Hamlin, N.D., Shields, S., & Shields, S. (2019). Hybrid fluid-kinetic models for high-energy-density plasmas [Conference Poster]. https://www.osti.gov/biblio/1641891 Publication ID: 64682
  • Patel, R., Atzberger, P., Trask, N.A., Cyr, E.C., & Cyr, E.C. (2019). Operator Regression for PDE Discovery [Conference Poster]. https://www.osti.gov/biblio/1641512 Publication ID: 70303
  • Cyr, E.C., Miller, S., Phillips, E., Beckwith, K., Bettencourt, M.T., Cartwright, K.L., Kramer, R.M.J., Pawlowski, R., Roberts, N.V., Shadid, J.N., Shields, S., & Shields, S. (2019). Multi-Fluid Plasma Simulation with an IMEX CG/DG Discretization [Conference Poster]. https://www.osti.gov/biblio/1641633 Publication ID: 70449
  • Tuminaro, R.S., Shadid, J.N., Cyr, E.C., Lin, P.T., Pawlowski, R., Phillips, E., Wiesner, T., Adler, J., Benson, T., Chacon, L., Farrell, P., Rappaport, A., MacLachlan, S., Hu, J.J., Berger-Vergiat, L., Glusa, C., Siefert, C., & Siefert, C. (2019). Scalable Preconditioners to Improve Time to Solution for Magnetohydrodynamics Applications [Presentation]. https://www.osti.gov/biblio/1645823 Publication ID: 70609
  • Miller, S., Cyr, E.C., Shadid, J.N., Kramer, R.M.J., Phillips, E., Conde, S., Pawlowski, R., & Pawlowski, R. (2019). IMEX and exact sequence discretization of the multi-fluid plasma model. Journal of Computational Physics, 397, pp. 1-26. https://doi.org/10.1016/j.jcp.2019.05.052 Publication ID: 70008
  • Patel, R., Atzberger, P., Trask, N.A., Cyr, E.C., & Cyr, E.C. (2019). Operator Regression for PDE Discovery [Conference Poster]. https://www.osti.gov/biblio/1641236 Publication ID: 69905
  • Cuneo, M.E., Laity, G., Robinson, A.C., Gardiner, T.A., Bettencourt, M.T., Shadid, J.N., Cyr, E.C., Hansen, G., Myers, C., Peterson, K.J., Leung, K., Welch, D., Rose, D., McBride, R., Sinars, D., & Sinars, D. (2019). Multi-Scale Multi-Physics Plasma Hybrid Algorithms Modeling and Simulations [Conference Poster]. https://www.osti.gov/biblio/1641379 Publication ID: 70064
  • Ridzal, D., Cyr, E.C., van Bloemen Waanders, B.G., & van Bloemen Waanders, B.G. (2019). Adjoint-based Parallel-in-time Optimization for Electromagnetics: From Source Inversion to Design [Conference Poster]. https://www.osti.gov/biblio/1640205 Publication ID: 68833
  • Mabuza, S., Shadid, J.N., Cyr, E.C., Smith, T.M., Kuzmin, D., & Kuzmin, D. (2019). Stabilized continuous finite element schemes for problems in plasma physics [Conference Poster]. https://www.osti.gov/biblio/1639628 Publication ID: 67857
  • Mabuza, S., Shadid, J.N., Conde, S., Cyr, E.C., Smith, T.M., Pawlowski, R., Kuzmin, D., & Kuzmin, D. (2019). On AFC algorithms for continuous Galerkin discretization of MHD equations [Presentation]. https://www.osti.gov/biblio/1644856 Publication ID: 67962
  • Bettencourt, M.T., Shields, S., Beckwith, K., Cartwright, K.L., Cyr, E.C., Kramer, R.M.J., Lin, P.T., McDoniel, W., Miller, S., Pawlowski, R., Phillips, E., Roberts, N.V., & Roberts, N.V. (2019). EMPIRE: Sandia’s Next Generation Plasma Tool ? Kokkosifying EMPIRE-Fluid [Conference Poster]. https://www.osti.gov/biblio/1639868 Publication ID: 68265
  • Cyr, E.C., Boyer, D., & Boyer, D. (2019). Panel Talk: Model Extraction and Reduction [Presentation]. https://www.osti.gov/biblio/1645189 Publication ID: 68359
  • Cartwright, K.L., Bettencourt, M.T., Pointon, T., Beckwith, K., Cyr, E.C., Kramer, R.M.J., McDoniel, W., Miller, S., Bachman, W.B., Radtke, G.A., Shields, S., Swan, M.S., Turner, C.D., Moore, C.H., & Moore, C.H. (2019). EMPIRE and EMPHASIS: Verification and Validation [Presentation]. https://www.osti.gov/biblio/1644576 Publication ID: 67633
  • Cyr, E.C., Ridzal, D., & Ridzal, D. (2019). A Parallel-in-Time Multigrid Preconditioner for KKT Systems Arising in Full Space Optimization [Conference Poster]. https://www.osti.gov/biblio/1639544 Publication ID: 67715
  • Cyr, E.C., Beckwith, K., Siefert, C., Sentz, P., Olson, L., Guenther, S., Gauger, N.R., Ruthotto, L., Schroder, J.B., & Schroder, J.B. (2019). Towards Scalable Scientific Machine Learning: Motivation and an Approach [Conference Poster]. https://www.osti.gov/biblio/1602145 Publication ID: 67122
  • Phipps, E.T., Pawlowski, R., Bettencourt, M.T., Cyr, E.C., Roberts, N.V., & Roberts, N.V. (2019). Hierarchical Parallelism for Performant Embedded Automatic Differentiation on GPUs [Conference Poster]. https://www.osti.gov/biblio/1582125 Publication ID: 64165
  • Mabuza, S., Shadid, J.N., Cyr, E.C., Smith, T.M., Kuzmin, D., & Kuzmin, D. (2019). Stabilized continuous finite element schemes for problems in plasma physics [Conference Poster]. https://www.osti.gov/biblio/1593213 Publication ID: 64349
  • Cyr, E.C. (2019). Exploiting Parallelism in Optimization with Evolutionary System Constraints [Conference Poster]. https://www.osti.gov/biblio/1594629 Publication ID: 64412
  • Lin, P.T., Shadid, J.N., Hu, J.J., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2018). Performance of fully-coupled algebraic multigrid preconditioners for large-scale VMS resistive MHD. Journal of Computational and Applied Mathematics, 344, pp. 782-793. https://doi.org/10.1016/j.cam.2017.09.028 Publication ID: 53012
  • Cyr, E.C., Beckwith, K., Bettencourt, M.T., Cartwright, K.L., Kramer, R.M.J., Miller, S., Pawlowski, R., Phillips, E., Roberts, N.V., Shadid, J.N., & Shadid, J.N. (2018). EMPIRE-Fluid: Towards Multi-Fluid Plasma Simulations for EMP [Conference Poster]. https://www.osti.gov/biblio/1594328 Publication ID: 59388
  • Bettencourt, M.T., Kramer, R.M.J., Cartwright, K.L., Phillips, E., Ober, C.C., Pawlowski, R., Swan, M.S., Tezaur, I.K., Phipps, E.T., Conde, S., Cyr, E.C., Ulmer, C.D., Kordenbrock, T., Levy, S.L.N., Templet, G.J., Hu, J.J., Lin, P.T., Glusa, C., Siefert, C., Glass, M.W., & Glass, M.W. (2018). ASC ATDM Level 2 Milestone #6358: Assess Status of Next Generation Components and Physics Models in EMPIRE. https://doi.org/10.2172/1493832 Publication ID: 58868
  • Pawlowski, R., Phillips, E., Shadid, J.N., Cyr, E.C., Conde, S., Bettencourt, M.T., Phipps, E.T., Bond, S.D., Trott, C.R., & Trott, C.R. (2018). Towards Towards a Hybrid Multi-fluid/PIC Plasma Capability [Conference Poster]. https://www.osti.gov/biblio/1576717 Publication ID: 63565
  • Pawlowski, R., Phillips, E., Shadid, J.N., Lin, P.T., Cyr, E.C., Conde, S., Bettencourt, M.T., Phipps, E.T., Trott, C.R., & Trott, C.R. (2018). Developing a Hybrid Multi-fluid/PIC Plasma Capability Using Components [Conference Poster]. https://www.osti.gov/biblio/1592043 Publication ID: 64017
  • Mabuza, S., Shadid, J.N., Kuzmin, D., Cyr, E.C., Smith, T.M., & Smith, T.M. (2018). AFC Algorithms for Continuous FE for HD & MHD [Conference Poster]. https://www.osti.gov/biblio/1570149 Publication ID: 63081
  • Lin, P.T., Shadid, J.N., Phillips, E., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2018). Performance of AMG-based preconditioners for fully-coupled Newton-Krylov methods for implicit continuum plasma simulations [Conference Poster]. https://www.osti.gov/biblio/1806727 Publication ID: 63317
  • Cyr, E.C. (2018). The EMPIRE Code Suite: Status [Conference Poster]. https://www.osti.gov/biblio/1571871 Publication ID: 63356
  • Tuminaro, R.S., Wiesner, T., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2018). Monolithic Multigrid for Multiphysics Applications Arising from Resistive MHD [Conference Poster]. https://www.osti.gov/biblio/1574277 Publication ID: 63482
  • Cyr, E.C. (2018). Scalable Methods for Scientific Machine Learning [Conference Poster]. https://www.osti.gov/biblio/1575119 Publication ID: 63519
  • Mabuza, S., Shadid, J.N., Cyr, E.C., Smith, T.M., Kuzmin, D., & Kuzmin, D. (2018). Algebraic flux correction algorithms in continuous FE schemes for HD & MHD [Conference Poster]. https://www.osti.gov/biblio/1526365 Publication ID: 62525
  • Ridzal, D., Cyr, E.C., & Cyr, E.C. (2018). Multigrid-in-time methods for optimization with nonlinear PDE/DAE constraints [Conference Poster]. https://www.osti.gov/biblio/1531095 Publication ID: 62853
  • Phillips, E., Shadid, J.N., Cyr, E.C., Miller, S.T., & Miller, S.T. (2018). Block Preconditioners Informed by Plasma Timescales [Conference Poster]. https://www.osti.gov/biblio/1504324 Publication ID: 61302
  • Lin, P.T., Shadid, J.N., Phillips, E., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2018). Scalable Newton-Krylov-AMG-based preconditioners for implicit continuum plasma simulations [Conference Poster]. https://www.osti.gov/biblio/1575328 Publication ID: 60743
  • Tuminaro, R.S., Berger-Vergiat, L., Mayr, M., Shadid, J.N., Cyr, E.C., Lupo Pasini, M., Ohm, P., & Ohm, P. (2018). Leveraging Application Structure Within Next Generation Multigrid Solvers [Conference Poster]. https://www.osti.gov/biblio/1497566 Publication ID: 60830
  • Pawlowski, R., Bettencourt, M.T., Cyr, E.C., Miller, S., Phillips, E., Phipps, E.T., Shadid, J.N., Trott, C.R., & Trott, C.R. (2018). Towards Performance Portable Assembly Tools for Multi-Fluid Plasma Simulation [Conference Poster]. https://www.osti.gov/biblio/1498443 Publication ID: 60900
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2018). Scalable preconditioners for structure preserving discretizations of maxwell equations in first order form. SIAM Journal on Scientific Computing, 40(3), pp. B723-B742. https://doi.org/10.1137/17M1135827 Publication ID: 61761
  • Ober, C.C., Pawlowski, R., Tezaur, I.K., Conde, S., Cyr, E.C., & Cyr, E.C. (2017). Tempus Time-Integration Package [Presentation]. https://www.osti.gov/biblio/1510906 Publication ID: 54106
  • Phillips, E., Shadid, J.N., Cyr, E.C., Miller, S., & Miller, S. (2017). Block Preconditioning to Enable Physics-Compatible Implicit Multifluid Plasma Simulations [Conference Poster]. https://www.osti.gov/biblio/1479051 Publication ID: 53681
  • Miller, S., Cyr, E.C., Shadid, J.N., Phillips, E., & Phillips, E. (2017). Continuous and discontinuous IMEX-FEM for the multi-fluid plasma model [Conference Poster]. https://www.osti.gov/biblio/1479190 Publication ID: 53694
  • Cyr, E.C., Ridzal, D., & Ridzal, D. (2017). Towards Parallel in Time for Full Space Optimization [Conference Poster]. https://www.osti.gov/biblio/1509626 Publication ID: 53292
  • Cyr, E.C., von Winckel, G., Kouri, D.P., Gardiner, T.A., Ridzal, D., Shadid, J.N., Miller, S., & Miller, S. (2017). LDRD Report: Topological Design Optimization of Convolutes in Next Generation Pulsed Power Devices. https://doi.org/10.2172/1413648 Publication ID: 54655
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2017). Preconditioning Strategies for Physics-Conforming Implicit Electromagnetics and Plasma Simulations [Conference Poster]. https://www.osti.gov/biblio/1471167 Publication ID: 58457
  • Phillips, E., Bettencourt, M.T., Cyr, E.C., Ellis, T.E., Kramer, R.M.J., McGregor, D.A.O., Miller, S., Niederhaus, J.H.J., Shadid, J.N., & Shadid, J.N. (2017). Stabilization of a Compatible Finite Element Plasma Discretization [Conference Poster]. https://www.osti.gov/biblio/1471961 Publication ID: 58523
  • Bettencourt, M.T., Cyr, E.C., Kramer, R.M.J., Miller, S., Pawlowski, R., Phillips, E., Robinson, A.C., Shadid, J.N., & Shadid, J.N. (2017). EMPIRE – EM/PIC/Fluid Simulation Code [Conference Poster]. https://www.osti.gov/biblio/1464675 Publication ID: 57890
  • Bettencourt, M.T., Cyr, E.C., Kramer, R.M.J., Miller, S., Pawlowski, R., Phillips, E., Robinson, A.C., Shadid, J.N., & Shadid, J.N. (2017). EMPIRE ? EM/PIC/Fluid Simulation Code [Conference Poster]. https://www.osti.gov/biblio/1464676 Publication ID: 57891
  • Cyr, E.C., von Winckel, G., Gardiner, T.A., Kouri, D.P., Miller, S., Shadid, J.N., & Shadid, J.N. (2017). Methods for Topological Design of Conducting Networks [Conference Poster]. https://www.osti.gov/biblio/1464677 Publication ID: 57892
  • Phillips, E., Shadid, J.N., Cyr, E.C., Miller, S., & Miller, S. (2017). Block Preconditioning Approaches to Compatible Electromagnetic and Plasma Discretizations [Conference Poster]. https://www.osti.gov/biblio/1463401 Publication ID: 57689
  • Mayr, M., Cyr, E.C., Shadid, J.N., Pawlowski, R., Wildey, T., Scovazzi, G., Zeng, X., Phillips, E., Conde, S., & Conde, S. (2017). Implicit-Explicit (IMEX) Time Integration for CFD & Multi-Physics Problems [Presentation]. https://www.osti.gov/biblio/1458227 Publication ID: 56716
  • Mayr, M., Cyr, E.C., Shadid, J.N., Pawlowski, R., Wildey, T., Scovazzi, G., Zeng, X., Phillips, E., Conde, S., & Conde, S. (2017). Implicit-Explicit (IMEX) Time Integration for Multi-Physics: Application to ALE-based CFD Simulations [Conference Poster]. https://www.osti.gov/biblio/1458228 Publication ID: 56717
  • Miller, S., Cyr, E.C., Shadid, J.N., Conde, S., Phillips, E., & Phillips, E. (2017). Implicit-Explicit Time Integration of the Multi-Fluid Plasma Model Using a Continuous Galerkin Spatial Discretization [Conference Poster]. https://www.osti.gov/biblio/1458255 Publication ID: 56760
  • Lin, P.T., Shadid, J.N., Phillips, E., Hu, J.J., Cyr, E.C., Pawlowski, R., & Pawlowski, R. (2017). Towards Scalable AMG-based Preconditioners for MHD and Multifluid Plasma Simulations [Conference Poster]. https://www.osti.gov/biblio/1513626 Publication ID: 57132
  • Bettencourt, M.T., Shadid, J.N., Cyr, E.C., Phillips, E., Kramer, R.M.J., Niederhaus, J.H.J., Robinson, A.C., & Robinson, A.C. (2017). Performance Portable Multi-Species Plasma Code [Conference Poster]. https://www.osti.gov/biblio/1367277 Publication ID: 56433
  • Lin, P.T., Shadid, J.N., Phillips, E., Hu, J.J., Cyr, E.C., Pawlowski, R., Tsuji, P., Sondak, D., & Sondak, D. (2017). Algorithmic aspects and performance of AMG-based preconditioning for an implicit FE VMS resistive MHD model [Conference Poster]. https://www.osti.gov/biblio/1458094 Publication ID: 56598
  • Miller, S., Cyr, E.C., Shadid, J.N., Phillips, E., & Phillips, E. (2017). Implicit-explicit time integration of multi-fluid plasma models using compatible discretizations [Conference Poster]. https://www.osti.gov/biblio/1456750 Publication ID: 56080
  • Miller, S., Shadid, J.N., Cyr, E.C., Phillips, E., & Phillips, E. (2017). Implicit-explicit time integration of multi-fluid plasma models using compatible discretizations [Conference Poster]. https://www.osti.gov/biblio/1429160 Publication ID: 55390
  • Cyr, E.C., von Winckel, G., Gardiner, T.A., Kouri, D.P., Ridzal, D., Miller, S., Shadid, J.N., & Shadid, J.N. (2017). Topology Optimization: Challenges Algorithms and Applications [Presentation]. https://www.osti.gov/biblio/1429279 Publication ID: 55430
  • Lin, P.T., Shadid, J.N., Pawlowski, R., Bettencourt, M.T., Cyr, E.C., & Cyr, E.C. (2017). Towards scalable and efficient implicit finite element simulations for plasma physics applications on HPC platforms [Conference Poster]. https://www.osti.gov/biblio/1456373 Publication ID: 55528
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2017). Enabling Scalable Multiphysics Simulations through Block Preconditioning [Conference Poster]. https://www.osti.gov/biblio/1456380 Publication ID: 55555
  • Wiesner, T.A., Shadid, J.N., Cyr, E.C., Hu, J.J., Tuminaro, R.S., & Tuminaro, R.S. (2017). MueLu – a multigrid framework for multiphysics preconditioners [Conference Poster]. https://www.osti.gov/biblio/1456404 Publication ID: 55598
  • Wiesner, T.A., Tuminaro, R.S., Cyr, E.C., Shadid, J.N., Hu, J.J., & Hu, J.J. (2017). Multiphysics Preconditioning with the MueLu Multigrid Library [Conference Poster]. https://www.osti.gov/biblio/1458245 Publication ID: 54996
  • Gates, J.M., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2017). Panzer: A Finite Element Assembly Engine within the Trilinos Framework [Conference Poster]. https://www.osti.gov/biblio/1427161 Publication ID: 55028
  • Cyr, E.C., von Winckel, G., Gardiner, T.A., Kouri, D.P., Miller, S., Shadid, J.N., & Shadid, J.N. (2017). Topology optimization for design of coaxial cables [Conference Poster]. https://www.osti.gov/biblio/1425291 Publication ID: 55037
  • Ridzal, D., Cyr, E.C., & Cyr, E.C. (2017). Inexact parallel-in-time solvers and SQP methods for PDE-constrained optimization [Conference Poster]. https://www.osti.gov/biblio/1524491 Publication ID: 55076
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2017). Scalable Block Preconditioners for Maxwell’s Equations and Continuum Plasma Physics Models [Conference Poster]. https://www.osti.gov/biblio/1424858 Publication ID: 55082
  • Lin, P.T., Shadid, J.N., Phillips, E., Hu, J.J., Cyr, E.C., Pawlowski, R., Prokopenko, A., Tsuji, P., & Tsuji, P. (2017). Performance of Scalable AMG-based Preconditioners for MHD and Multifluid Plasma Simulations [Conference Poster]. https://www.osti.gov/biblio/1424884 Publication ID: 55148
  • Bettencourt, M.T., Howard, M., Cyr, E.C., & Cyr, E.C. (2017). Sandia?s ATDM* Applications [Conference Poster]. https://www.osti.gov/biblio/1427035 Publication ID: 53013
  • Pawlowski, R., Bartlett, R., Bettencourt, M.T., Carleton, J.B., Conde, S., Cyr, E.C., Kim, K., Mota, A., Perego, M., Shadid, J.N., Sjaardema, G.D., Toth, A.R., Bradley, A.M., Spotz, W.F., Ober, C.C., Tezaur, I.K., & Tezaur, I.K. (2017). ECP 1.3.3.03a Develop General CS Components for ATDM Applications [Presentation]. https://www.osti.gov/biblio/1507624 Publication ID: 53357
  • Shadid, J.N., Phillips, E., Cyr, E.C., Pawlowski, R., Bettencourt, M.T., Cartwright, K.L., Lin, P.T., Kramer, R.M.J., Niederhaus, J.H.J., Radtke, G.A., Robinson, A.C., & Robinson, A.C. (2016). Towards Scalable and Efficient Solution of Full Maxwell Electromagnetics – Multifluid Plasma Systems [Conference Poster]. https://www.osti.gov/biblio/1404787 Publication ID: 47068
  • Wildey, T., Shadid, J.N., Cyr, E.C., Chaudry, J., & Chaudry, J. (2016). Adjoint Enhanced Methods for Uncertainty Quantification of Multiphysics Applications [Conference Poster]. https://www.osti.gov/biblio/1400047 Publication ID: 47138
  • Cyr, E.C., Shadid, J.N., Wildey, T., Phillips, E., Robinson, A.C., Miller, S., Pawlowski, R., & Pawlowski, R. (2016). Implicit-Explicit (IMEX) Time Integration for Multi-Physics: Application to ALE and Plasma Simulation [Conference Poster]. https://www.osti.gov/biblio/1401944 Publication ID: 47222
  • Ober, C.C., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2016). Tempus Time-Integration Package [Presentation]. https://www.osti.gov/biblio/1406860 Publication ID: 47391
  • Tuminaro, R.S., Cyr, E.C., Shadid, J.N., Noble, D.R., Berger-Vergiat, L., Hu, J.J., Prokopenko, A., Siefert, C., Wiesner, T.A., Perego, M., Salinger, A.G., Tezaur, I.K., Price, S., & Price, S. (2016). Toward Robust Scalable Algebraic Multigrid Solvers [Presentation]. https://www.osti.gov/biblio/1406967 Publication ID: 47500
  • Kramer, R.M.J., Miller, S., Niederhaus, J.H.J., Radtke, G.A., Bettencourt, M.T., Cartwright, K.L., Cyr, E.C., Phillips, E., Robinson, A.C., Shadid, J.N., & Shadid, J.N. (2016). A Rigorous Verification Strategy for a Continuum Plasma Code [Conference Poster]. https://www.osti.gov/biblio/1399198 Publication ID: 52690
  • Smith, T.M., Shadid, J.N., Cyr, E.C., Pawlowski, R., Wildey, T., & Wildey, T. (2016). Stabilized FE simulation of prototype thermal-hydraulics problems with integrated adjoint-based capabilities. Journal of Computational Physics, 321(C), pp. 321-341. https://doi.org/10.1016/j.jcp.2016.04.062 Publication ID: 48127
  • Lin, P.T., Shadid, J.N., Hu, J.J., Pawlowski, R., Cyr, E.C., Prokopenko, A., & Prokopenko, A. (2016). Aspects of Large-scale Fully-coupled AMG Preconditioned FE Magnetohydrodynamic Simulations Enabled Through Trilinos [Conference Poster]. https://www.osti.gov/biblio/1372011 Publication ID: 51033
  • Phillips, E., Cyr, E.C., Shadid, J.N., Tuminaro, R.S., & Tuminaro, R.S. (2016). Block Preconditioners for Mixed Discretization MHD and Continuum Plasma Simulations Enabled by Teko [Conference Poster]. https://www.osti.gov/biblio/1373178 Publication ID: 51342
  • Shadid, J.N., Pawlowski, R., Cyr, E.C., Tuminaro, R.S., Chacon, L., Weber, P.D., & Weber, P.D. (2016). Scalable implicit incompressible resistive MHD with stabilized FE and fully-coupled Newton-Krylov-AMG. Computer Methods in Applied Mechanics and Engineering, 304(C), pp. 1-25. https://doi.org/10.1016/j.cma.2016.01.019 Publication ID: 39906
  • Bettencourt, M.T., Cyr, E.C., Pawlowski, R., Kramer, R.M.J., Phillips, E., Shadid, J.N., Robinson, A.C., & Robinson, A.C. (2016). Performance Portable Assembly For Plasma Fluid Equations [Conference Poster]. https://www.osti.gov/biblio/1368901 Publication ID: 50333
  • Wiesner, T.A., Shadid, J.N., Cyr, E.C., Tuminaro, R.S., Hu, J.J., & Hu, J.J. (2016). Multigrid framework for multiphysics problems [Conference Poster]. https://www.osti.gov/biblio/1368650 Publication ID: 50605
  • Wildey, T., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2016). Adjoint Enhanced Methods for Uncertainty Quantification of Multiphysics Applications [Conference Poster]. https://www.osti.gov/biblio/1367627 Publication ID: 50793
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2016). Efficient Solution Methods for Electromagnetics and Multifluid Plasma Models [Conference Poster]. https://www.osti.gov/biblio/1368826 Publication ID: 50216
  • Bettencourt, M.T., Cyr, E.C., Pawlowski, R., Kramer, R.M.J., Phillips, E., Shadid, J.N., Robinson, A.C., & Robinson, A.C. (2016). Performance Portable Assembly For Plasma Fluid Equations [Conference Poster]. https://www.osti.gov/biblio/1368847 Publication ID: 50239
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2016). Block Solvers for Implicit Electromagnetic and Plasma Simulations [Conference Poster]. https://www.osti.gov/biblio/1348097 Publication ID: 48980
  • von Winckel, G., Cyr, E.C., Kouri, D.P., Ridzal, D., Gardiner, T.A., Shadid, J.N., & Shadid, J.N. (2016). Reduced and Full Space Methods in Topology Optimization: Applications in Linear Elasticity and Electrical Conduction [Conference Poster]. https://www.osti.gov/biblio/1364862 Publication ID: 49038
  • Wildey, T., Cyr, E.C., Shadid, J.N., van Bloemen Waanders, B.G., Kouri, D.P., Bishop, J.E., Tavener, S., Butler, T., Prudhomme, S., Dawson, C., & Dawson, C. (2016). Utilizing Adjoint-Based Techniques to Improve the Accuracy and Reliability in Uncertainty Quantification [Conference Poster]. https://www.osti.gov/biblio/1345103 Publication ID: 48514
  • Adler, J.H., Benson, T.R., Cyr, E.C., MacLachlan, S.P., Tuminaro, R.S., & Tuminaro, R.S. (2016). Monolithic multigrid methods for two-dimensional resistive magnetohydrodynamics. SIAM Journal on Scientific Computing, 38(1), pp. B1-B24. https://doi.org/10.1137/151006135 Publication ID: 46200
  • Cyr, E.C., Shadid, J.N., Tuminaro, R.S., & Tuminaro, R.S. (2016). Teko: A block preconditioning capability with concrete example applications in Navier-Stokes and MHD. SIAM Journal on Scientific Computing, 38(5), pp. S307-S331. https://doi.org/10.1137/15M1017946 Publication ID: 46661
  • Benson, T., Adler, J., Cyr, E.C., MacLachlan, S., Tuminaro, R.S., & Tuminaro, R.S. (2016). Monolithic Multigrid for a B-field Incompressible Resistive Magnetohydrodynamics Model [Conference Poster]. https://www.osti.gov/biblio/1341371 Publication ID: 46833
  • Gao, X., Mamaluy, D., Cyr, E.C., Marinella, M., & Marinella, M. (2016). Comprehensive assessment of oxide memristors as post-CMOS memory and logic devices. ECS Transactions, 72(3), pp. 49-58. https://doi.org/10.1149/07203.0049ecst Publication ID: 48851
  • Cyr, E.C., Shadid, J.N., Phillips, E., Pawlowski, R., Seefeldt, B., & Seefeldt, B. (2015). Construction of Mixed Formulations and Scalable Preconditioners for Magnetohydrodynamics [Presentation]. https://www.osti.gov/biblio/1336272 Publication ID: 41844
  • Ridzal, D., Cyr, E.C., Hajghassem, M., & Hajghassem, M. (2015). A time-parallel method for the solution of PDE-constrained optimization problems. https://doi.org/10.2172/1430466 Publication ID: 42089
  • Wildey, T., Shadid, J.N., Cyr, E.C., Jakeman, J.D., Butler, T., & Butler, T. (2015). Adjoint-Based a Posteriori Error Estimation and Uncertainty Quantification for Transient Nonlinear Problems with Discontinuous Solutions [Conference Poster]. https://www.osti.gov/biblio/1323036 Publication ID: 45375
  • Cartwright, K.L., Radtke, G.A., Cyr, E.C., & Cyr, E.C. (2015). Uncertainty Estimation Applied to Verification and Validation (V&V) [Conference Poster]. https://www.osti.gov/biblio/1506761 Publication ID: 45481
  • Sondak, D., Shadid, J.N., Oberai, A.A., Pawlowski, R., Cyr, E.C., Smith, T.M., & Smith, T.M. (2015). A new class of finite element variational multiscale turbulence models for incompressible magnetohydrodynamics. Journal of Computational Physics, 295(C), pp. 596-616. https://doi.org/10.1016/j.jcp.2015.04.035 Publication ID: 39907
  • Wildey, T., Jakeman, J.D., Butler, T., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2015). Adjoint-Based a Posteriori Error Estimation and Uncertainty Quantification for Shock-Hydrodynamic Applications [Conference Poster]. https://www.osti.gov/biblio/1279685 Publication ID: 44737
  • Phillips, E., Shadid, J.N., Cyr, E.C., Pawlowski, R., & Pawlowski, R. (2015). Block Preconditioners for Magnetohydrodynamics With Mixed Discretizations [Conference Poster]. https://www.osti.gov/biblio/1257561 Publication ID: 43932
  • Lin, P.T., Shadid, J.N., Hu, J.J., Cyr, E.C., Pawlowski, R., Prokopenko, A., & Prokopenko, A. (2015). Fully-coupled Algebraic Multigrid Preconditioning Performance for Finite Element Resistive Magnetohydrodynamics [Conference Poster]. https://www.osti.gov/biblio/1252928 Publication ID: 43365
  • Cyr, E.C., Shadid, J.N., Wildey, T., Hensinger, D.M., Robinson, A.C., Rider, W., Scovazzi, G., & Scovazzi, G. (2015). IMEX Lagrangian Methods [Conference Poster]. https://www.osti.gov/biblio/1253301 Publication ID: 43417
  • Phillips, E., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2015). Block Preconditioners for Resistive MHD in Vector Potential Form [Conference Poster]. https://www.osti.gov/biblio/1258166 Publication ID: 43511
  • Lin, P.T., Shadid, J.N., Hu, J.J., Cyr, E.C., Pawlowski, R., Prokopenko, A., & Prokopenko, A. (2015). On the Performance of Fully-Coupled Algebraic Multigrid Preconditioning at Large-Scale: Application to FEM CFD/MHD [Conference Poster]. https://www.osti.gov/biblio/1249295 Publication ID: 43165
  • Wildey, T., Shadid, J.N., Cyr, E.C., Constantine, P., & Constantine, P. (2015). Enabling Efficient Uncertainty Quantification Using Adjoint-based Techniques. https://doi.org/10.2172/1179153 Publication ID: 43275
  • Phillips, E., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2015). Block Preconditioners for 3D Incompressible MHD with Mixed Finite Elements [Conference Poster]. https://www.osti.gov/biblio/1241290 Publication ID: 42398
  • Cyr, E.C., Bettencourt, M.T., Demeshko, I., Pawlowski, R., & Pawlowski, R. (2015). Architecture Portable Threaded Assembly for Maxwell’s Equations [Conference Poster]. https://www.osti.gov/biblio/1247087 Publication ID: 42407
  • Demeshko, I., Cyr, E.C., & Cyr, E.C. (2015). SCALABLE FINITE ELEMENT ASSEMBLY [Conference Poster]. https://www.osti.gov/biblio/1246851 Publication ID: 42433
  • Wildey, T., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2015). Utilizing Adjoint-Based Techniques to Effectively Perform UQ on Discontinuous Responses [Conference Poster]. https://www.osti.gov/biblio/1246277 Publication ID: 42478
  • Lin, P.T., Shadid, J.N., Hu, J.J., Cyr, E.C., Pawlowski, R., Prokopenko, A., & Prokopenko, A. (2015). Performance of Algebraic Multigrid Preconditioners for Large-Scale Finite Element Simulations [Conference Poster]. https://www.osti.gov/biblio/1244447 Publication ID: 42593
  • Demeshko, I., Bradley, A.M., Cyr, E.C., Edwards, H.C., Heroux, M.A., Phipps, E.T., Salinger, A.G., & Salinger, A.G. (2015). A Kokkos Implementation of Albany: A Performance Portable Multiphysics Simulation Code [Conference Poster]. https://www.osti.gov/biblio/1331664 Publication ID: 42726
  • Cyr, E.C., Phipps, E.T., Heroux, M.A., Brown, J., Coon, E.T., Hoemmen, M.F., Kirby, R.C., Kolev, T.V., Sutherland, J.C., Trott, C.R., & Trott, C.R. (2014). Algorithms and Abstractions for Assembly in PDE Codes: Workshop Report. https://doi.org/10.2172/1504610 Publication ID: 98832
  • Cyr, E.C., Shadid, J.N., Phillips, E., Tuminaro, R.S., Pawlowski, R., Lin, P.T., Chacon, L., & Chacon, L. (2014). Block Preconditioning for Multi-physics: From Jacobi to Schur Complements [Presentation]. https://www.osti.gov/biblio/1367654 Publication ID: 39432
  • Cyr, E.C., Shadid, J.N., Kuzmin, D., & Kuzmin, D. (2014). Algebraic Linearity Preserving Flux Limiting for Systems of PDEs [Presentation]. https://www.osti.gov/biblio/1497776 Publication ID: 38081
  • Cyr, E.C., Phillips, E., Shadid, J.N., Pawlowski, R., Elman, H.C., & Elman, H.C. (2014). A BLOCK PRECONDITIONER FOR AN EXACT PENALTY FORMULATION FOR STATIONARY MHD. SIAM Journal on Scientific Computing. https://www.osti.gov/biblio/1183108 Publication ID: 38258
  • Lin, P.T., Siefert, C., Cyr, E.C., Bettencourt, M.T., Domino, S.P., Fisher, T.C., Hoemmen, M.F., Hu, J.J., Phipps, E.T., Prokopenko, A., Rajamanickam, S., & Rajamanickam, S. (2014). Towards Extreme-scale Simulations with Next-Generation Trilinos: a low Mach application case study [Conference]. https://doi.org/10.1109/IPDPSW.2014.166 Publication ID: 40873
  • Cyr, E.C. (2014). Mini-driver application for testing FEM assembly on modern architectures [Conference]. https://www.osti.gov/biblio/1315364 Publication ID: 37211
  • Shadid, J.N., Pawlowski, R., Cyr, E.C., Wildey, T., & Wildey, T. (2014). Thermal hydraulic simulations, error estimation and parameter sensitivity studies in Drekar::CFD. https://doi.org/10.2172/1204072 Publication ID: 36835
  • Cyr, E.C., Chaudhry, J.H., Liu, K., Manteuffel, T.A., Olson, L.N., Tang, L., & Tang, L. (2014). Enhancing least-squares finite element methods through a quantity-of-interest. SIAM Journal on Numerical Analysis, 52(6), pp. 3085-3105. https://doi.org/10.1137/13090496X Publication ID: 38581
  • Lin, P.T., Rajamanickam, S., Siefert, C., Bettencourt, M.T., Cyr, E.C., Domino, S.P., Fisher, T.C., Hoemmen, M.F., Hu, J.J., Phipps, E.T., Prokopenko, A., & Prokopenko, A. (2013). Enabling extreme-scale simulations with next-generation Trilinos for Sierra low Mach fluid application code [Conference]. https://www.osti.gov/biblio/1121283 Publication ID: 31744
  • Wildey, T., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2013). Adjoint-Based Error Analysis for Stabilized Formulations and IMEX Schemes [Conference]. https://www.osti.gov/biblio/1140447 Publication ID: 36063
  • Shadid, J.N., Pawlowski, R., Cyr, E.C., Wildey, T., Weber, P.D., & Weber, P.D. (2013). Drekar::CFD-A Trilinos Component-Based Software Flow Solver [Conference]. https://www.osti.gov/biblio/1296709 Publication ID: 36095
  • Tuminaro, R.S., Hu, J.J., Prokopenko, A., Siefert, C., Tsuji, P., Boman, E.G., Cyr, E.C., Lin, P.T., Shadid, J.N., & Shadid, J.N. (2013). Amoritzing AMG Components Across Problem Sequences [Conference]. https://www.osti.gov/biblio/1106439 Publication ID: 35034
  • Cyr, E.C. (2013). Spatially varying embedded stochastic galerkin methods for steady-state PDEs. https://doi.org/10.2172/1090207 Publication ID: 34488
  • Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2013). Adjoint Based a posteriori Error Estimates Using Data Compression [Conference]. https://www.osti.gov/biblio/1081510 Publication ID: 33861
  • Pawlowski, R., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2013). Multiphysics Coupling Tools Applied to Large-scale Simulations of a Light Water Nuclear Reactor Core [Conference]. https://www.osti.gov/biblio/1067750 Publication ID: 32384
  • Pawlowski, R., Cyr, E.C., Shadid, J.N., Tuminaro, R.S., Lin, P.T., & Lin, P.T. (2013). Performance of Efficient AMG Based Preconditioners for Implicit Resistive MHD [Conference]. https://www.osti.gov/biblio/1067808 Publication ID: 32385
  • Cyr, E.C., Shadid, J.N., Smith, T.M., Pawlowski, R., & Pawlowski, R. (2013). A comparison of adjoint and data-centric verification techniques. https://doi.org/10.2172/1095937 Publication ID: 32930
  • Tuminaro, R.S., Cyr, E.C., & Cyr, E.C. (2013). An Investigation of Multigrid Smoothers for Fully Implicit 2D Incompressible Resistive MHD [Conference]. https://www.osti.gov/biblio/1064306 Publication ID: 32215
  • Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2013). Error Estimates for Adjoint Inconsistent Discretization Methods [Conference]. https://www.osti.gov/biblio/1145344 Publication ID: 32237
  • Lin, P.T., Shadid, J.N., Cyr, E.C., & Cyr, E.C. (2013). Block-Oriented Preconditioners for the Solution of the Semiconductor Drift-Diffusion Equations [Conference]. https://www.osti.gov/biblio/1064337 Publication ID: 32252
  • Tuminaro, R.S., Cyr, E.C., & Cyr, E.C. (2013). MULTIGRID SMOOTHERS FOR MAGNETOHYDRODYNAMICS [Conference]. https://www.osti.gov/biblio/1063505 Publication ID: 31470
  • Cyr, E.C., Shadid, J.N., Smith, T.M., & Smith, T.M. (2012). Adjoint based a posteriori error estimation in Drekar::CFD. https://doi.org/10.2172/1055892 Publication ID: 30630
  • Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2012). A POSTERIORI ANALYSIS OF STABILIZED FINITE ELEMENT METHODS. Proposed for publication in SIAM Journal on Scientific Computing.. https://www.osti.gov/biblio/1073472 Publication ID: 29767
  • Aksoylu, B., Bond, S.D., Cyr, E.C., Holst, M., & Holst, M. (2012). Goal-oriented adaptivity and multilevel preconditioning for the poisson-boltzmann equation [Conference]. Journal of Scientific Computing. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84861455916&origin=inward Publication ID: 27819
  • Cyr, E.C. (2012). Automated Generation of Spatially Varying Stochastic Expansions for Embedded Uncertainty Quantification [Presentation]. https://www.osti.gov/biblio/1649960 Publication ID: 29094
  • Cyr, E.C. (2012). Global Unknown Numbering in Panzer [Presentation]. https://www.osti.gov/biblio/1658502 Publication ID: 29287
  • Cyr, E.C. (2012). Spatially Varying Stochastic Expansions for Embedded Uncertainty Quantification [Conference]. https://www.osti.gov/biblio/1068389 Publication ID: 27223
  • Pawlowski, R.P., Shadid, J.N., Smith, T.M., Cyr, E.C., & Cyr, E.C. (2011). Scalable stabilized fe formulations for simulating turbulent reacting flows in light water reactors [Conference]. 11AIChE – 2011 AIChE Annual Meeting, Conference Proceedings. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84857223524&origin=inward Publication ID: 23744
  • Pawlowski, R., Cyr, E.C., Shadid, J.N., Smith, T.M., & Smith, T.M. (2011). Building an Open-source Multiphysics PDE Research Tool using Trilinos [Conference]. https://www.osti.gov/biblio/1118462 Publication ID: 25231
  • Pawlowski, R., Cyr, E.C., Shadid, J.N., & Shadid, J.N. (2011). Panzer: A Finite Element Assembly Engine for Multiphysics Simulation [Conference]. https://www.osti.gov/biblio/1118484 Publication ID: 25196
  • Shadid, J.N., Pawlowski, R., Cyr, E.C., Weber, P.D., & Weber, P.D. (2011). Reactor Core Sub-Assembly Simulations Using a Stabilized Finite Element Method [Conference]. https://www.osti.gov/biblio/1118676 Publication ID: 24510
  • Smith, T.M., Shadid, J.N., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2011). Reactor Core Sub-Assembly Simulations Using a Stabilized Finite Element Method [Conference]. https://www.osti.gov/biblio/1106234 Publication ID: 23592
  • Shadid, J.N., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2011). Reactor core sub-assembly simulations using a stabilized finite element method [Conference]. https://www.osti.gov/biblio/1289784 Publication ID: 22240
  • Shadid, J.N., Pawlowski, R., Cyr, E.C., & Cyr, E.C. (2010). Reactor core sub-assembly simulations using a stabilized finite element method [Conference]. https://www.osti.gov/biblio/1114618 Publication ID: 21122
  • Cyr, E.C., Bond, S.D., & Bond, S.D. (2010). Goal-Oriented Error Estimation and Multilevel Preconditioning for the Poisson-Boltzmann Equation. Springer Journal of Scientific Computing. https://www.osti.gov/biblio/1121614 Publication ID: 20583
  • Cyr, E.C., Shadid, J.N., Pawlowski, R., Tuminaro, R.S., & Tuminaro, R.S. (2010). Block Preconditioners for Fluid Flow and MHD [Conference]. https://www.osti.gov/biblio/1142042 Publication ID: 17647
  • Tuminaro, R.S., Hu, J.J., Cyr, E.C., & Cyr, E.C. (2009). Energy Minimizing Algebraic Multigrid for Systems of Partial Differential Equations [Presentation]. https://www.osti.gov/biblio/1696844 Publication ID: 15859
Showing 10 of 209 publications.