Focus Area • Applied mathematics and numerical analysis provides a key foundation to Sandia's success in applying advanced computing to solve national-scale problems. Such work includes development of new numerical discretizations that are provably stable and convergent for multi-physics problems as well as algorithms and tools for mathematical optimization in the presence of...
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Numerical PDE’s review panel
Award, March 1, 2010 • Review board, National Science Foundation. Division of Mathematical Sciences
Ojas Parekh
Staff Page • Discrete Math & Optimization. Biography I am a theoretical computer scientist who enjoys applying mathematical techniques to practically motivated interdisciplinary problems. I have worked in a variety of fields including discrete optimization, combinatorics, combinatorial scientific computing, and most recently, quantum and neuromorphic computing. A recent passion is helping shape the emerging fields...
Oksana Guba
Staff Page • Computational Sciences. Biography Oksana Guba is a senior member of the technical staff in the Computational Science Department. Her interests are modeling, numerical methods, and discretizations, in particular, for Earth systems simulations. Those include many aspects of the atmospheric dynamical core modeling, thermodynamics, and physics processes. Education Ph.D. Applied Mathematics,...
Optimization & Uncertainty Quantification
Department • The Optimization and Uncertainty Quantification (UQ) Department's mission is to provide leadership in the research, development, and application of scientific optimization and UQ algorithms and software, in support of Sandia's many mission areas. The department produces several open-source, scientific software packages including Dakota and ROL (Rapid Optimization Library).
Optimization-based computational modeling
Award, November 1, 2010 • Invited Talk, Institute of mathematics and its Applications, U. Minnesota. Invited talk at the IMA workshop on "Numerical solution of PDEs: novel discretization techniques"
Optimization-based computational modeling, or how to achieve better predictiveness with less complexity
Award, December 9, 2010 • Invited Talk, Pontifical Catholic University of Chile, Santiago, Chile.
Optimization-Based Computational Modeling, or How toAchieve Better Predictiveness with Less Complexity
Award, May 5, 2011 • Invited Talk, Midwest Numerical Analysis Day 2011, Purdue University. Plenary presentation.
Optimization-based computational models, or how to let someone else do the hard work
Award, June 29, 2010 • Invited Talk, University of Pavia. Workshop on “Non-standard numerical methods for PDE's”, Pavia,Italy
Optimization-Based Decomposition of Multiphysics Problems with Applications to Solver Design
Award, July 22, 2011 • Invited Talk, ICIAM 11, Vancouver. Presented at special session on "Solution Algorithms for Multiple-Component Constrained Partial Differential Equations"
Optimization-based modeling with applications to transport. Part 2. Optimization algorithm
Award, June 7, 2011 • Invited Talk, 8th Int. Conf. Large Scale Sci. Comp..
Optimization-based modeling with applications to transport. Part 3. Implementation and computational studies
Award, June 7, 2011 • Invited Talk, 8th Int. Conf. Large Scale Sci. Comp..
Organization
Page • Director Jennifer Gaudioso Center for Computing Research Senior Managers James StewartComputational Sciences & Math John T. FeddemaEnhanced Decision Making Robert HoekstraExtreme-scale Computing Managers Steven W. BovaComputational MultiphysicsRon BrightwellScalable System SoftwareIan ChengBusiness AdministrationDavid LittlewoodComputational MultiscaleTzvetan S. MetodiQuantum Computer ScienceRon OldfieldScientific Machine LearningTimothy WildeyComputational MathematicsAndrew G. SalingerComputational Science Matthew GraceDiscrete Math &...
Organizers of a minisimposium on “Nonstandard methods and tools for computational modeling”
Award, February 27, 2011 • Society/professional leadership, 2011 SIAM CS/E Meeting. Minisimposium comprised of 3 parts.
Organizers of special session on “Advanced methods for transport”
Award, June 4, 2011 • Society/professional leadership, 8th Int. Conf. Large Scale Sci. Comp., June 2011, Sozopol, Bulgaria.
Organizers of special session on “Advances in solution methods for challenging multiphysics systems”
Award, March 1, 2011 • Society/professional leadership, 16th Conference on Finite Elements in Fluids, Munich, Germany.
Outside Examiner
Award, May 14, 2013 • Other external recognition, Knox College.
Parallel Job Scheduling Policies to Improve Fairness: A Case Study
Award, November 2, 2010 • Invited Talk, Knox College Department of Computer Science.
ParaView
Software • ParaView is an open-source, multi-platform data analysis and visualization application. ParaView users can quickly build visualizations to analyze their data using qualitative and quantitative techniques. The data exploration can be done interactively in 3D or programmatically using ParaView’s batch processing capabilities. ParaView was developed to analyze extremely large datasets using...
Patriotic Civilian Service
Award, February 10, 2011 • Other external recognition, Department of the Army . For 3.5 years of participation on the National Research Council (of the National Academies) Standing Advisory Board for the Joint IED Defeat...
Paul Allen Kuberry
Staff Page • Computational Mathematics. Biography Paul Kuberry received his M.S. and Ph.D. in Mathematical Sciences from Clemson University and his B.S. in Mathematics from Clarion University of Pennsylvania. His research interests include developing and analyzing algorithms and coupling methods for the solution of multi-physics partial differential equations and problems posed on domains...
Pavel B. Bochev
Staff Page • Computing Research. Biography Pavel is a Senior Scientist at Sandia National Laboratories in Albuquerque where he works in the Center for Computing Research. He joined Sandia in 2000 after six years of teaching and research at the University of Texas at Arlington. Pavel’s research interests include compatible discretizations for partial...
Peridigm
Software • Peridigm is an open-source computational peridynamics code. It is a massively-parallel simulation code for implicit and explicit multi-physics simulations centering on solid mechanics and material failure. Peridigm is a C++ code utilizing foundational software components from Sandia's Trilinos project and is fully compatible with the Cubit mesh generator and Paraview visualization...
Peridynamics
Focus Area • The peridynamic theory of solid mechanics, developed at Sandia, is a nonlocal extension of classical continuum mechanics for discontinuities and long-range forces. It is a mathematical theory that unifies the mechanics of continuous media, cracks, and discrete particles. Our research in peridynamics span a number of interrelated areas, including mathematics,...
Peter A. Schultz
Staff Page • Computational Multiscale. Projects/Research interests High-performance computing in atomistic materials science Development and application of high-performance atomistic materials simulations methods, particularly first principles quantum mechanics for extended (bulk and surface) systems. Quantum Electronic Structure Method Development: SeqQuest Principal developer of the QUEST suite of Gaussian-basis density functional theory (DFT) pseudopotential codes...
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