Presentations
All my PETSc Tutorial presentations are
here
2025
2023
Jun DMPlex ,
PETSc Meeting 2023, Chicago, IL
VIDEO
2022
Dec Numerical Libraries , AGU Fall Meeting 2022, Chicago, IL
Jul How to Choose an Algorithm , Finger Lakes HPC Meeting 2022, Rochester, NY
Jul Droplet Formation Simulations Using a Mixed Finite Element
Method , ICCFD 2022, Maui, HI
May Droplet Formation Simulations Using a Mixed Finite Element
Method , Parallel CFD 2022, Alba, Italy
Mar Combinatorial Topology for Meshing , Appel Group Seminar, Princeton, NJ
2021
2020
Nov How to Choose an Algorithm , Applied and Computational Mathematics Virtual Seminar,
University of Edinburgh, Edinburgh, UK
Feb The Impact of Solvers on Modeling , SIAM PP 2020, Seattle, WA
Feb The Impact of Solvers on Modeling , Firedrake USA 2020, Seattle, WA
2019
Mar Understanding Multivariate Computation using the Kolmogorov
Superposition Theorem , Firedrake 2019, Durham, UK
Jul Linear and Nonlinear Solvers , Engineering
Science Seminar, Auckland, NZ
Jun Linear and Nonlinear Solvers , PETSc Users
Meeting 2019, Atlanta, GA
Apr
Mar Thoughts on Composing Nonlinear Solvers , AMS Sectional Meeting 2019, Honolulu, HI
Feb Enrichment for Multigrid in PETSc , SIAM CSE 2019, Spokane, WA
Jan PDEs, optimization, and eigenproblems with PETSc/TAO and
SLEPc , ECP Annual Meeting, Houston, TX
2018
Dec Abstraction in PyLith , AGU Fall Meeting 2018, Washington D.C.
Dec Understanding Multivariate Computation using the Kolmogorov
Superposition Theorem , Innovating the Geosciences: Data Science, Machine Learning,
and Jupyter, 2018, Washington D.C.
Sept Exploiting Lipschitz Continuity for the Kolmogorov
Superposition Theorem , MCS Seminar, Argonne National Laboratory, Chicago, IL
Aug Improved Solvation Models using Boundary Integral
Equations , SIAM Life Sciences 2018, Minneapolis, MN
Jul Thoughts on Composing Nonlinear Solvers , Plenary for DD 25, St. John's Newfoundland, CA
Jun
Jun PETSc Users Meeting 2018 , London, UK
Apr
Mar Geodynamic Simulator Building , SIAM PP 2018, Tokyo, JP
Mar High order discontinuous Galerkin methods for flows in porous
media , Rice Oil & Gas HPC, Houston, TX (Poster)
Mar Comparative study of finite element methods using the
Time-Accuracy-Size (TAS) spectrum analysis , Rice Oil & Gas HPC, Houston, TX (Poster)
Jan The Kolmogorov Superposition Theorem , Scientific Machine Learning 2018 Workshop, Department of
Energy, Bethesda MD
2017
May The Role of Computer Science in Computational Mathematics , Scientific and Statistical Computing Seminar, Department of
Statistics, University of Chicago, Chicago IL
Apr Computational Bioelectrostatics , Scientific Computing Seminar, Department of Mathematics,
University of Houston, Houston, TX
Mar Software Design for Non-conforming Finite Elements , Applied Modeling and Computation Group Seminar, Earth Science
and Engineering, Imperial College, London, UK
Mar The Impact of Structured AMR Representation on Software
Design in PETSc , Minisymposterium, SIAM CS\&E 2017, Atlanta, GA
Mar A Sustainable Software Architecture for Scalable Nonlinear
Boundary Element Method Simulations , Minisymposterium, SIAM CS\&E 2017, Atlanta, GA
Mar SlabGenerator: Improving Productivity for Subduction
Modeling , Minisymposterium, SIAM CS\&E 2017, Atlanta, GA
2016
Oct The Portable Extensible Toolkit for Scientific Computation , Rice Laboratory for Space and Astrophysical Plasmas Seminar
2016, Houston, TX
Oct Constructing Parallel Data Distributions , ICL Earth Sciences Seminar 2016, London, UK
Sept Improved Solvation Models using Boundary Integral
Equations , UNC Mathematics Seminar 2016, Chapel Hill, NC
Jul PETSc Tutorial , CIRM, Luminy, France [Video ]
Jun Using PETSc Solvers in PyLith , CIG All-Hands Meeing 2016, Davis, CA
May Composing Nonlinear Solvers , MIT AeroAstro Seminar 2016, Boston, MA
Apr Convergence of Composed Nonlinear Iterations , SIAM PP 2016, Paris, FR
Mar The Portable Extensible Toolkit for Scientific Computation , Ken Kennedy Institute Lecture, Houston, TX
Mar PETSc Tutorial , Rice Oil and Gas HPC Conference, Houston, TX
Feb Computational Considerations for Magma Dynamics ,
Melt in the Mantle , Newton Institute 2016, Cambridge, UK
Jan Convergence of Composed Nonlinear Iterations , SPPEXA 2016, München, DE
2015
Nov Work/Precision Tradeoffs in Continuum Models of Biomolecular
Electrostatics , ASME IMECE 2015, Houston, TX
Sep Composing Nonlinear Solvers , Numerical Methods for Large-Scale Nonlinear Problems and
Their Applications, ICERM, Providence, RI
Apr The Portable Extensible Toolkit for Scientific Computing , CAAM 520 Guest Lecture, Rice University, Houston, TX
Mar PETSc: Infrastructure for Computational Science , Mechanical and Industrial Engineering Department,
Northeastern University, Boston, MA
Mar Computational Magma Dynamics , SIAM CS&E, Salt Lake City, UT
Mar Extensibility in PETSc , SIAM CS&E, Salt Lake City, UT
Feb Computational Bioelectrostatics , Colloquium, Computational and Applied Mathematics Department,
Rice University, Houston, TX
Jan Computational Bioelectrostatics , Numerical Analysis Seminar, Mathematics Department, Texas
A&M University, College Station, TX
2014
Dec A Computational Viewpoint on Classical Density Functional
Theory , Numerical Analysis Seminar, Mathematics Department, Texas
A&M University, College Station, TX
Nov High Performance Python Libraries , Keynote for PyHPC Workshop at SC 14, New Orleans, LA
Nov PyHPC Tutorial , at SC 14, New Orleans, LA
Oct A Computational Viewpoint on Classical Density Functional
Theory , Earth Science & Engineering Seminar, Imperial College London,
UK
Aug A Computational Viewpoint on Classical Density Functional
Theory , SIAM Life Sciences, Charlotte NC
Jul Nonlinear Preconditioning in PETSc , ICERM, Providence RI
Jul (Probably) Scalable Nonlinear Solvers for Geophysical
Problems , SIAM Annual Meeting, Chicago IL [Video ]
Jul Nonlinear Preconditioning in PETSc , PMAA 14, Lugano CH
Jun PETSc Solvers for Crustal Deformation , CDM 14, Stanford University, Palo Alto CA
Jun Composable Solvers in PETSc , CACDS Seminar, University of Houston, Houston TX
Apr Nonlinear Preconditioning in PETSc , SUNY Buffalo, Buffalo, NY
Mar Nonlinear Preconditioning in PETSc , Oxford University, Oxford, UK
Mar Nonlinear Preconditioning in PETSc , Imperial College, London, UK
Feb Runtime Configurability in PETSc , SIAM PP 14, Portland, OR
2013
Sept The Portable Extensible Toolkit for Scientific Computing , Minnesota Supercomputing Institute, Minneapolis, MN
July Finite Element Integration using CUDA and OpenCL , GPU-SMP 13, Changchun, China
June Crustal Deformation Modeling Tutorial , Cyberspace
June The Process of Computational Science , Maison de la Simulation, Orsay, France
June Advanced PETSc Tutorial , Maison de la Simulation, Orsay, France
February Nested and Hierarchical Solvers in PETSc , SIAM CS&E, Boston, MA
February The Process of Computational Science , Columbia APAM Colloquium, New York, NY
2012
November Mathematics Colloquium , Széchenyi István University, Győr, Hungary
October Departmental Colloquim , School of Mathematical Sciences, Monash University, VIC
Australia
October Invited talk ,
MathGeo CMG Conference, Princeton, NJ
August PETSc Tutorial , ACTS Workshop, Berkeley, CA
July Invited Minisymposium talk , SIAM Annual Meeting, Minneapolis, MN
June PyLith Solver Tutorial , CIG Crustal Deformation Modeling workshop, Golden, CO
June Keynote Address , GPU Solutions to Multiscale Problems (GPU-SMP), Shenzhen,
China
2011
September :
Seminar , ICES, UT Austin, TX
August :
Specialized Topics Workshop, Center for Biomedical
Computing , Simula Reseach, Oslo, Norway
July :
Keynote Address ,
GPU Solutions to Multiscale Problems (GPU-SMP), Lanzhou, China
June :
Conference on Simulation and Optimization , Széchenyi István University, Győr, Hungary
April : PETSc Tutorial, University of Wisconsin, Madison
April :
Lindbergh Lecture , Department of Mechanical Engineering, University of
Wisconsin, Madison
April :
PETSc: Platform for Scientific Computing , ME 964 Guest Lecture, Department of Mechanical Engineering,
University of Wisconsin, Madison
March :
HPC${}^3$
Workshop, KAUST, Jeddah, Saudi Arabia
March :
Advanced Algorithms on GPUs , SIAM CS&E, Reno, NV
January :
IMA Workshop on High Performance Computing and Emerging
Architectures , Minneapolis, MN
January :
NSF PASI Institute, Valparaiso , Chile
2010
December :
AGU: Large-Scale Geosciences Applications using GPU and
Multicore Architectures , San Francisco, CA
October :
Conference in Honor of Prof. Ahmed Sameh , Purdue University, West Lafayette, IN
October :
Plenary Talk ,
Parallel and Accelerated Computing, Széchenyi
István University, Győr, Hungary
October :
Seminar ,
Mathematics Department, Széchenyi István
University, Győr, Hungary
September :
39th SPEEDUP Workshop on High Performance Computing , ETH Zurich, Switzerland
September :
Geophysical Fluid Dynamics Seminar , Department of Earth Sciences, ETH Zurich, Switzerland
August :
Automated and Distributed Computing Seminar , Simula Research Laboratory, Oslo, Norway
July :
International Workshop of GPU Solutions to Multiscale
Problems in Science and Engineering (GMP-SMP) , Harbin, China
July :
ESCO 2nd European Seminar on Coupled Problems , Pilsen, Czech Republic
March :
KAUST Seminar , Jeddah, Saudi Arabia
March :
KAUST Applied Math \& Computer Science Seminar , Jeddah, Saudi Arabia
March :
Tree-based methods on GPUs , School of Mathematical Sciences, Monash University, Victoria,
Australia
February :
Tufts Mathematics Department Seminar , Medford, MA
2009
December :
Stokes Preconditioning on a GPU , AGU Fall Meeting, San Francisco, CA
November :
Dissemination and Management of Computational Science
Software , Sharing Data and Code in Computational Science, New Haven, CT
November :
High Performance GPU Kernels: FMM , SC '09, Portland, OR
October :
Implications for Library Developers of GPU Hardware , NSF-NAIS Intelligent Software Workshop, Edinburgh, Scotland
October :
PETSc Tutorial , IBM T.J. Watson Research Center, Yorktown Heights, NY
September :
Tree-based methods on GPUs , Department of Mathematics Colloquim, Louisiana State
University, Baton Rouge, LA
September :
PETSc Tutorial ,
Texas Advanced Computing Center, Austin, TX
August :
Tree-based methods on GPUs , International Workshop on Geodynamical Phenomena, Suzdal,
Russia
July :
Tree-based methods on GPUs , HPC Group, Shanghai Supercomputing Center, Shanghai, China
July :
Tree-based methods on GPUs , International Workshop on Modern Computational Geoscience
Frontiers, GUCAS, Beijing, China
March : Path to Petascale (GPU Meeting), University of
Illinois Urbana-Champaign, IL
March :
Tree-based methods on GPUs , SIAM CS&E, Miami, FL
2008
August :
Finite Element Implementation , ICES Seminar, University of Texas at Austin, TX
August :
Fast Methods with Sieve , Foundations of Finite Element Computing, Simula Research,
Olso, Norway
August :
Theoretical Foundations , Foundations of Finite Element Computing, Simula Research,
Olso, Norway
July : SIAM Annual Meeting, San Diego, CA
July :
The Portable Extensible Toolkit for Scientific Computing ,Workshop for Advancing Numerical Modeling of Mantle Convection
and Lithospheric Dynamics, University of California Davis, CA
June : Workshop on Numerical Modeling of Crustal
Deformation and Earthquake Faulting, Colordao School of Mines,
Golden, CO
June :
Parallelism for the Very Large and Very Small , Sandia CSRI Workshop on Next-Generation Scalable
Applications, Albuquerque, NM
March :
Refactoring Finite Element Computation , Computation Institute, University of Chicago, Chicago, IL
March :
Finite Element Assembly on Arbitrary Meshes , SIAM Conference on Parallel Processing for Scientific
Computing, Atlanta, GA
March :
TOPS Contributions to PFLOTRAN , TOPS Group Meeting, Atlanta, GA
March :
What is Wrong with Automatic Mathematical Modeling , Workshop on Automating the Development of Scientific
Computing Software, Louisiana State University, Baton Rouge, LA
March :
FEniCS and Sieve Tutorial , Workshop on Automating the Development of Scientific
Computing Software, Louisiana State University, Baton Rouge, LA
February :
Optimal Solvers in PETSc , AuScope Inaugural Conference, Monash University, Victoria,
Australia
2007
October : The Role of Symbolic, Numeric and Algebraic
Computation in CDI, NSF, Washington D.C.
October : CIG Adaptive Mesh Refinement Workshop,
University of Colorado Boulder, CO
October : Mathematics Seminar, University of
Duisberg-Essen, Essen, Germany
October : Special Semester on Biological Computing,
University of Linz, Linz, Austria
October :
FAS and Solver Performance , Fall AMS Central Section Meeting, Chicago, IL
August : VLAB Seminar, University of Minnesota,
Minneapolis, MN
June : Biomedical Flows Workshop, Simula Research, Oslo,
Norway
2006
December : Supercomputing Institute Seminar, University of
Minnesota, Minneapolis, MN
November : CBC Seminar, Simula Research, Oslo, Norway
November : FEniCS 06, TU Delft, Delft, Netherlands
September : Multiphysics Simulation Workshop, Idaho
National Laboratory, Idaho Falls, ID
August : Magma Dynamics Workshop, Columbia University, New
York, NY
July : SIAM Annual Meeting, Boston, MA
June : Fault Systems Workshop, Colorado School of Mines,
Golden, CO
March : Compressible Convection Workshop, Purdue
University, West Lafayette, IN
2005
November : CIG Science Steering Committee Meeting,
California Institute of Technology, Pasadena, CA
October : FEniCS 05, Toyota Technical Institute, Chicago,
IL
October : CIG Meeting, Monash University, Melbourne,
Australia
September : Computer Science Seminar, Indiana University,
Bloomington, IN
July : Short-Term Crustal Dynamics Workshop, Los Alamos
National Laboratory, Los Alamos, NM
June : Mantle Convection Workshop, University of Colorado
Boulder, CO
May : CIG Executive Committee Meeting, University of
California Berkeley, CA
April : Parallel Computing Workshop, University of
Houston, Houston, TX
March : CIG Meeting, California Institute of Technology,
Pasadena, CA
February : SIAM CS&E, Orlando, FL
2004
October : Mathematics and Computer Science Seminar,
Argonne National Laboratory, Lemont, IL
October : CIG Meeting, Monash University, Melbourne,
Australia
October : CRI Seminar, Purdue University, West Lafayette,
IN
August : Domain Specific Languages for PDE Constrained
Optimization, Argonne National Laboratory, Lemont, IL
July : Computer Science Seminar, Carnegie-Mellon
University, Pittsburgh, PA
June : Climate Simulation Colloquium, University of
Chicago, Chicago, IL
May : Parallel CFD, Gran Canaria, Canary Islands
February : APAM Lecture, Columbia University, New York, NY
January : CIG Kickoff Meeting, LAX, Los Angeles, CA
1999
Jun