CERT

Center for Exascale Radiation Transport

Texas A&M Engineering Experiment Station

Publications

Published Journal Articles

      1. Andrew T. Till, James S. Warsa, Jim E. Morel, “Application of Linear Multifrequency-Grey Acceleration to Preconditioned Krylov Iterations for Thermal Radiation Transport,” Journal of Computational Physics, 372(1), 931-955 (2018).
      2. J. Allen, T. A. Manteuffel, and H. Rajaram,“Exploring basal sliding with a fluidity based, ice-sheet model using FOSL”, J. Numer Lin. Alg. and Appl., Vol. 23, No. 3, DOI: 10.1002/nla.2161, (2018).D. Kalchev, T. A. Manteuffel, and S. Munzenmaier,“Mixed (LL*)-1 and LL* least squares finite element methods with application to linear hyperbolic problems”, J. Numer Lin. Alg. and Appl., Vol. 23, No. 3,(DOI) – 10.1002/nla.2150, (2018).
      3. A. Fox and T. A. Manteuffel, “Algebraic Multigrid for Directed Graph Laplacian Linear Systems (NS-LAMG)”, J. Numer Lin. Alg. and Appl., Vol. 23, No. 3, DOI: 10.1002/nla.2152, (2018).
      4. T. A. Manteuffel and W. B. Mitchell, “Advances in Implementation, Theoretical Motivation, and Numerical Results for the Nested Iteration with Range Decomposition Algorithm” J. Numer Lin. Alg. and Appl., Vol. 23, No. 3, DOI: 10.1002/nla.2149, (2018).
      5. J.M. Ferguson, J.E. Morel, R. Lowrie, “The Equilibrium-Diffusion Limit for Radiation Hydrodynamics,” Journal of Quantitative Spectroscopy and Radiative Transfer, 202, 176-186 (2017).
      6. Weixiong Zheng, Ryan G. McClarren, Jim E. Morel, “An Accurate Globally Conservative Subdomain Discontinuous Least-Squares Scheme for Solving Neutron Transport Problems,” Nuclear Science and Engineering, 1-13, published online 13 Dec 2017 by Taylor and Francis, https://doi.org/10.1080/00295639.2017.1407592
      7. Peter G. Maginot, Jean C. Ragusa, Jim E. Morel, “Nonnegative Methods for Bilinear Discontinuous Differencing of the Sn Equations on Quadrilaterals,” Nuclear Science and Engineering, 185(1), 53-69 (2017).
      8. Simon R. Bolding, Mathew A. Cleveland, Jim E. Morel, “A High-Order Low-Order Algorithm with Exponentially Convergent Monte Carlo for Thermal Radiative Transfer,” Nuclear Science and Engineering, 185(1), 159-173 (2017).
      9. Jim E. Morel, James S.Warsa, Brian C. Franke, Anil K. Prinja, “A Comparison of Two Galerkin Quadrature Methods,” Nuclear Science and Engineering, 185(2), 325-334 (2017).
      10. Simon Bolding, Joshua Hansel, Jarrod D. Edwards, Jim E. Morel, Robert B. Lowrie, “Second-Order Discretization in Space and Time for Radiation-Hydrodynamics,” Journal of Computational Physics, bf 338, 511-526 (2017).
      11. J.M. Ferguson, J.E. Morel, R.B. Lowrie, “Nonrelativistic Grey Sn-Transport Radiative-Shock Solutions,” High Energy Density Physics, 23 95-114 (2017).
      12. J.R. Peterson, J.E. Morel, and J.C. Ragusa, “Residual Monte Carlo for the One-Dimensional Neutron Transport Equation,” SIAM Journal on Scientific Computing, 38(6), B941-B961 (2016).
      13. Simon R. Bolding, Jim E. Morel, and Mathew A. Cleveland, A High-Order Low-Order Algorithm with Exponentially-Convergent Monte Carlo for Thermal Radiative Transfer, accepted for publication, Nuclear Science and Engineering, (2016).
      14. D. Appelhans, T. A. Manteuffel, S. F. McCormick, J. Ruge, ”A low communication, parallel algorithm for solving PDEs based on range decomposition”, Numer. Lin. Alg., submitted, May 2015, accepted, February 2, 2016.
      15. V.M. Laboure, R.G. McClarren, and Y. Wang, Globally Conservative, Hybrid Self-Adjoint Angular Flux and Least-Squares Method Compatible with Void, Nuclear Science and Engineering, in press Aug. 2016.
      16. V.M. Laboure, R.G. McClarren, and C.D. Hauck, Implicit filtered PN for high-energy density thermal radiation transport using discontinuous Galerkin finite elements, Journal of Computational Physics, 321 624643, 2016.
      17. M. Hanu and R.G. McClarren, On the Use of Symmetrized Transport Equation in Goal-Oriented Adaptivity, Journal of Computational and Theoretical Transport, 45(4), 314333, 2016.
      18. P.A. Vaquer, R.G. McClarren, and Y.A. Ayzman, A Compressed Sensing Framework for Monte Carlo Transport Simulations Using Random Disjoint Tallies, Journal of Computational and Theoretical Transport, 45(3), 219 229, 2016.
      19. W. Zheng and R.G. McClarren, Moment Closures Based on Minimizing the Residual of the PN Angular Expansion in Radiation Transport, Journal of Computational Physics, 314 682699, 2016.
      20. W. Zheng and R.G. McClarren, Emulation-Based Calibration for Parameters in Parameterized Phonon Spectrum of ZrHx in TRIGA Reactor Simulations, Nuclear Science and Engineering, 183(1) 7895, 2016.
      21. C. Y. Lau* and M. L. Adams, Discrete-Ordinates Quadratures Based on Linear and Quadratic Discontinuous Finite Elements Over Spherical Quadrilaterals, Nucl. Sci. Eng., to appear (2016).
      22. Peter G. Maginot, Jean C. Ragusa, Jim E. Morel, “High-order Solution Methods for Grey Discrete Ordinates Thermal Radiative Transfer,” Journal of Computational Physics, 327, 719-746 (2016).
      23. Akansha Kumar, Jim E. Morel, Marvin L. Adams, “A New Indirect Measure of Diffusion Model Error,” Journal of Quantitative Spectroscopy and Radiative Transfer, 163, 24-33 (2015).
      24. Peter G. Maginot, Jean C. Ragusa, Jim E. Morel,“Lumping Techniques for DFEM Sn Transport in Slab Geometry,” Nuclear Science and Engineering, 179(1), 148-163 (2015).
      25. Marc O. Delcini, Jean C. Ragusa, Jim Morel, “Entropy-Based Artificial Viscosity Stabilization for Non-Equilibrium Grey Radiation-Hydrodynamics,” Journal of Computational Physics, 296, 293-313 (2015).
      26. R. Bank, R. Falgout, T. Jones, T. Manteuffel, S. McCormick, J. Ruge, ”Algebraic multigrid domain and range decomposition (AMG-DD/AMG-RD)”, SIAM J. Sci Comp., Vol. 37, No. 5, pp. S113136, (2015).
      27. C. Ketelsen, T. Manteuffel, J. Schroder ”Least-squares finite element discretization of the neutron transport equation in spherical geometry”, SIAM J. Sci Comp., Vol. 37, No. 5, pp. S7189, (2015).
      28. W. Zheng and R.G. McClarren, “Semi-analytic Benchmark for Multi-group Free-gas Legendre Moments and the Application of Gauss quadrature in Generating Thermal Scattering Legendre Moments”, Annals of Nuclear Energy, 85, 1131-1140, 2015.
      29. A. Chakraborty, D. Bingham, B.K. Mallick, C.C. Kuranz, R.P. Drake, M.J. Grosskopf, E. Rutter, B.R. Torralva, J.P. Holloway, and R.G. McClarren, Emulation of Numerical Models with Over-specified Basis Functions, Technometrics, in press July 2015.
      30. A. Kumar, P.V. Tsvetkov, and R.G. McClarren, Linear Regression and Sensitivity Analysis in Nuclear Reactor Design, Annals of Nuclear Energy, 85, 798-811, 2015.
      31. Don E. Bruss, Jim E. Morel, Jean C. Ragusa, “S2-SA Preconditioning for the Sn Equations with Strictly Nonnegative Spatial Discretization,”Journal of Computational Physics, 273, 706-719 (2014).
      32. Peter G. Maginot, Jean C. Ragusa, Jim E. Morel, “Discontinuous Finite Element Discretizations for the SN Neutron Transport Equation in Problems with Spatially 27 Varying Cross Sections, ”Annals of Nuclear Energy, 73, 506-526 (2014).
      33. R.G McClarren, M.L Adams, P.A. Vaquer, and C. Strack The asymptotic drift-diffusion limit of thermal neutrons , Journal of Computational and Theoretical Transport, 43(1-7) 402-417, 2014.

       

      Published Conference Proceedings

      1. Yunhaung Zhang and Jim E. Morel, “Transport Error Estimation via Non-Recursive Residual Monte Carlo,” PHYSOR 2018: Reactor Physics Paving The Way Towards More Efficient Systems, Cancun, Mexico, April 22-26, 2018, on USB memory stick
        (2018).
      2. Simon R. Bolding, Jim E. Morel, “Residual Monte Carlo Transport in Time with Consistent Low-Order Acceleration for lD Thermal Radiative Transfer,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017, on USB (2017). Available: https://www.kns.org/paper/inter paper/lists/n conf name/MC2017/. *(50%)
      3. Don E. Bruss, Jim E. Morel, Jean C. Ragusa, “Adjoint-Based Uncertainty Quantification for Radiation Transport Calculations with Uncertain Cross-Section Data,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017, on USB (2017). Available: https://www.kns.org/paper/inter paper/lists/n conf name/MC2017/. *(100%)
      4. Hans R. Hammer, Jim E. Morel, Yaqi Wang, “Nonlinear Diffusion Acceleration in Voids for the Weighted Least-Square Transport Equation,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017, on USB (2017). Available: https://www.kns.org/paper/inter paper/lists/n conf name/MC2017/.*(10%)
      5. Edward W. Larsen, Jim E. Morel, Jijie Lou, “Nonlocal Diffusion Coefficients for Neutronic Systems Containing Voided Subregions,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017, on USB (2017). Available: https://www.kns.org/paper/inter paper/lists/n conf name/MC2017/.*(30%)
      6. Jijie Lou, Jim E. Morel, “Linear Diffusion-Synthetic Acceleration with Voids,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017, on USB (2017). Available: https://www.kns.org/paper/inter paper/lists/n conf name/MC2017/. *(50%)
      7. A. Fidel, F. Coral Sabido, C. Riedel, N. M. Amato and L. Rauchwerger, “Fast Approximate Distance Queries in Unweighted Graphs using Bounded Asynchrony,” Workshop on Languages and Compilers for Parallel Computing (LCPC), 2016.
      8. Jan Vermaak*, Sophit Pongpun, Marvin L. Adams, and Thomas J. Conroy, In-core Neutron Detectors for Characterizing High Temporal-Resolution Reactor Transients, Proc. International Conference on the Physics of Reactors, Sun Valley, ID, CDROM (2016).
      9. A. T. Till*, M. Hanu, J. Lou*, J. E. Morel, and M. L. Adams, Comparisons of the Finite- Element-With-Discontiguous-Support Method to Continuous-Energy Monte Carlo for Pin-Cell Problems, Proc. International Conference on the Physics of Reactors, Sun Valley, ID, CDROM (2016).
      10. Harshvardhan, Adam Fidel, Nancy M. Amato, Lawrence Rauchwerger. “An Algorithmic Approach to Communication Reduction in Parallel Graph Algorithms.” International Conference on Parallel Architectures and Compilation Techniques (PACT), 2015, nominated for best paper.
      11. Ioannis Papadopoulos, Nathan Thomas, Adam Fidel, Dielli Hoxha, Nancy M. Amato, Lawrence Rauchwerger, “Asynchronous Nested Parallelism for Dynamic Applications in Distributed Memory”, Workshop on Languages and Compilers for Parallel Computing (LCPC) 2015.
      12. Harshvardhan, Brandon West, Adam Fidel, Nancy M. Amato, Lawrence Rauchwerger. “A Hybrid Approach To Processing Big Data Graphs on Memory-Restricted Systems,” IPDPS 2015.
      13. S.R. Bolding, M. Cleveland, and J.E. Morel. “A High-Order Low-Order Algorithm with Exponentially-Convergent Monte Carlo for Thermal Radiative Transfer,” accepted, Joint International Conference on Mathematic and Computations (M&C) Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015, American Nuclear Society.
      14. A.T. Till, M.L. Adams, and J.E. Morel, “The Finite Element with Discontiguous Support Multigroup Method: Theory,” accepted, Joint International Conference on Mathematics and Computation (M&C), Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015, American Nuclear Society.
      15. Bruss, McClarren, Adams, Morel, “Construction of a Response Surface for a Reactor Like Problem with Realistic Cross Section Uncertainties,” accepted, Joint International Conference on Mathematics and Computation (M&C), Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015, American Nuclear Society.
      16. P.G. Maginot, J.C. Ragusa, and J.E. Morel, “A Non-Negative, Non-Linear Petrov-Galerkin Method for Bilinear Discontinuous Differencing of the SN Equations,” accepted, Joint International Conference on Mathematics and Computations (M&C) Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015, American Nuclear Society.
      17. M. P. Adams, M. L. Adams, C. N. McGraw, A. T. Till, and T. S. Bailey, “Provably OptimalParallel Transport Sweeps with Non-Contiguous Partitions,” accepted, Mathematics and Computation (M&C), Supercomputing in Nuclear Applications (SNA), and Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015, American Nuclear Society.
      18. Anthony P. Barbu, Marvin L. Adams, “A Nonlinear Acceleration Method for Radiative Transfer Problems,” Joint International Conference on Mathematics and Computations (M&C) Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015.
      19. Jacob R. Peterson, Jim E. Morel, Jean C. Ragusa, Yaqi Wang, “Conservative Nonlinear Diffusion Acceleration Applied to the Unweighted Least-Squares Transport Equation in Moose,” Joint International Conference on Mathematics and Computations (M&C) Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville , TN, April 19-23, 2015.
      20. Weixiong Zheng, Ryan G. McClarren, “On Variable Selection and Effective Estimations of Interactive and Quadratic Sensitivity Coefficients: A Collection of Regularized Regression Techniques” Joint International Conference on Mathematics and Computations (M&C) Supercomputing in Nuclear Applications (SNA), and the Monte Carlo (MC) Method, Nashville, TN, April 19-23, 2015.
      21. Ioannis Papadopoulos, Adam Fidel, Nathan Thomas, Nancy M. Amato, Lawrence Rauchwerger. “STAPL-RTS: An Application Driven Runtime System,” in Proceedings of the 29th ACM International Conference on Supercomputing (ICS), pp. 425-434, June 2015.
      22. Mani Zandifar, Mustafa Abdul Jabbar, Alireza Majidi, David Keyes, Nancy M. Amato, Lawrence Rauchwerger, “Composing Algorithmic Skeletons to Express High-Performance Scientific Applications,” in Proceedings of the 29th ACM International Conference on Supercomputing (ICS), pp. 415-424, June 2015. Conference Best Paper Award.
      23. Jon Hansen, Jacob Peterson, Jim Morel, Jean Ragusa, YaqiWang, “A Least-Squares Transport Equation Compatible with Voids,” Journal of Computational and Theoretical Transport, (online), 1-14 (2014).
      24. S.R. Bolding and J.E. Morel, “A High-Order/Low-Order Approach with Exponentially-Convergent Monte Carlo for k-Eigenvalue Problems,” Transactions of the American Nuclear Society, 111, 637-640 (2014).
      25. Harshvardhan, Adam Fidel, Nancy M. Amato, Lawrence Rauchwerger, “KLA: A New Algorithmic Paradigm for Parallel Graph Computations”, in the Proceedings of the 23rd International Conference on Parallel Architectures and Compilation Techniques (PACT), 2014. Conference Best Paper Award.
      26. Weixiong Zheng, Ryan G. McClarren, “Effective Physics-Based Uncertainty Quantification for ZrHx Thermal Neutron Scattering in TRIGA Reactors,” PHYSOR 2014, Kyoto, Japan, Sep. 2014.
      27. Don E. Bruss, Jim E. Morel, Jean C. Ragusa, “Adjoint-Based Uncertainty Quantification for Radiation Transport Calculations with Uncertain Cross-Section Data,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017, on USB (2017). Available:

      Accepted Journal Articles

      1. Hans R. Hammer, Jim E. Morel, Yaqi Wang, “A Weighted Least-Squares Transport Equation Compatible with Source Iteration and Voids,” Nuclear Science and Engineering, 193, 388-403 (2019).
      2. Jijie Lou, Jim E. Morel, N. A. Gentile, “A Variable Eddington Factor Method for the 1-D Grey Radiative Transfer Equations With Discontinuous Galerkin and Mixed Finite-Element Spatial Differencing” Journal of Computational Physics, 393, 258-277 (2019).
      3. C. Ketelsen, T. Manteuffel, J. Schroder, ”Least-squares finite element discretization of the neutron transport equation in spherical geometry”, SIAM J. Sci Comp., to appear (2015).
      4. E. Lee, T. Manteuffel, C. Westphal, “FOSLL_ for nonlinear partial differential equations” SIAM J. Sci. Comp., to appear (2015).
      5. C. Leibs, T. Manteuffel, ”Nested iteration and first-order system least squares for two-fluid electromagnetic Darwin model”, SIAM J. Sci Comp., to appear (2015).
      6. Weixiong Zheng, Ryan G. McClarren, “Semi-analytic Benchmark for Multi-group Free-gas Legendre Moments and the Application of Gauss quadrature in Generating Thermal Scattering Legendre Moments”, Submitted to Annals of Nuclear Energy.
      7. Weixiong Zheng, Ryan G. McClarren, “Emulation Based Calibration for Parameters in Parameterized Phonon Spectrum of ZrHx in TRIGA Reactor Simulations”, Submitted to Nuclear Science and Engineering.
      8. Zheng, Ryan G. McClarren, “An Accurate Flux-limited Diffusive PN Closure: the PN Quasi-Transient (PNQT) Model for Radiation Transport”, submitted to 24th ICTT, Italy, Sept. 2015.

      Accepted Conference Proceedings

          1. Milan Hanuˇs, Jean C. Ragusa, “Improving the Performance of Transport Sweeps with Thermal Upscattering Acceleration at Massively Parallel Scale,” M&C 2019 -International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, August 25-29, 2019, Portland, Oregon.
          2. Yunhuang Zhang, Jim E. Morel, “Parallel Implementation of Residual Monte-Carlo Error Estimator Based On Domain Decomposition,” M&C 2019 – International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, August 25-29, 2019, Portland, Oregon.
          3. Simon R. Bolding, Jim E. Morel, “Residual Monte Carlo Transport in Time with Consistent Low-Order Acceleration for lD Thermal Radiative Transfer,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.
          4. Don E. Bruss, Jim E. Morel, Jean C. Ragusa, “Adjoint-Based Uncertainty Quantification for Radiation Transport Calculations with Uncertain Cross-Section Data,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.
          5. Hans R. Hammer, Jim E. Morel, Yaqi Wang, “Nonlinear Diffusion Acceleration in Voids for the Weighted Least-Square Transport Equation,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.
          6. Edward W. Larsen, Jim E. Morel, Jijie Lou, “Nonlocal Diffusion Coefficients for Neutronic Systems Containing Voided Subregions,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.
          7. Jijie Lou, Jim E. Morel, “Linear Diffusion-Synthetic Acceleration with Voids,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.
          8. Milan Hanus, Jean C. Ragusa, Micahel Hackemack, “A Study of Various Thermal Upscattering Acceleration Schemes for Massively Parallel Transport Sweeps,”M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.
          9. Yunhuang Zhang, Aaron J. Holzaepfel, Marvin L. Adams, “NJOY Maximum Energy Limit For Thermal Neutron Cross Section Treatment,” M&C 2017 – International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, April 16-20, 2017.

          Submitted Journal Articles

          1. T. A. Manteuffel, S. F. McCormick, S. Munzenmaier, J. Ruge, B. S. Southworth Reduction based algebraic multigrid for upwind discretization, SIAM J. Sci. Comp. submitted March 16, 2017.
          2. S. Munzenmaier, C. Leibs, T.A. Manteuffel, A comparison of finite element spaces for H (div) conforming first-order system least squares, J. Num. Lin. Alg. Apps., submitted, June 15, 2016.
          3. R. D. Falgout, T.A. Manteuffel, B. ONeill, J.B.Schroder, Multigrid reduction in time for nonlinear parabolic problems”, J. Num. Lin. Alg. Apps., submitted, June 21, 2016.
          4. R. D. Falgout, T.A. Manteuffel, S.F. McCormick, W.B. Mitchell, Discretization accuracy convergence for full algebraic multigrid, J. Num. Lin. Alg. Apps., submitted, June 27, 2016.
          5. T.A. Manteuffel, L. N. Olson, J.B. Schroder, and B. S. Southworht, A root-node based algebraic multigrid method, J. Num. Lin. Alg. Apps., submitted, June 30, 2016.
          6. A. L. Fox, T.A. Manteuffel, and G.D. Sanders, Numerical methods for Grembans expansion of signed graphs, J. Num. Lin. Alg. Apps., submitted June 30, 2016.
          7. M. Grosskopf, D. Bingham, M. Adams, D. Hawkins and A. Holzaepfel, “Statistical Model Calibration for Rates and Count Data – an Application to Radiation Transfer

          Presentations

          1. Milan Hanu, Ryan G. McClarren, “Goal Oriented Adaptivity Based on the Forward-Adjoint Symmetrization of the Transport Equation,” SIAM CSE 2017, Atlanta, Georgia, February 27-March 3, 2017.
          2. Adam Fidel, Harshvardhan, Nancy M. Amato, Lawrence Rauchwerger, “SGL: An approach for Future Exascale Graph Processing,” RESPA Workshop at Supercomputing 2016, Salt Lake City, Utah, November 18 2016.
          3. Simon Bolding, Jim E. Morel, Robert B. Lowrie “A High-Order/Low-Order Exponentially-Convergent IMC Method,” SIAM CSE 2015, Salt Lake City, Utah, March 14-18, 2015.
          4. Jacob Peterson, Jim E. Morel, “A Conservative High-Order / Low-Order Method Based Upon a Non-Conservative High-Order Least Squares Sn Formulation,” SIAM CSE 2015, Salt Lake City, Utah, March 14-18, 2015.
          5. Ryan McClarren, “Uncertainty Quantification and Predictive Science for High Energy Density Radiative Transfer using Neutron Experiments,” AWE Aldermaston Seminar, June 13, 2014.
          6. Ryan McClarren, “Uncertainty Quantification And Predictive Science For High-Energy Density Radiative Transfer Using Neutron Experiments,” 11th World Congress on Computational Mechanics (WCCM XI) & 5th European Conference on Computational Mechanics (ECCM V), Barcelona, Spain, July 2014.

          *denotes % paid for by PSAAP.

Center for Exascale Radiation Transport

Center for Large Scale Scientific Simulations

Nuclear Engineering - Texas A&M University

University of Colorado Boulder

Simon Fraser University - Engaging the World