Presentations

2025

• Lessons from MPICH, invited talk at EuroMPI'25, October 1-3, Charlotte NC.
• Using Performance Engineering to Navigate the Revolution in Computing, invited talk at ICERM Workshop From Modeling to Learning with HPC, September 13-14, 2025, Providence, RI.

2024

• Getting to Adoption: Lessons from MPI and PETSc, keynote at NUWEST, Albuquerque, NM, Jan 18, 2024.

2023

• Challenges for MPI in Its Third Decade, presentation for Dell HPC Community weekly webinar, May 17, 2023.
• Living with Complexity: Pragmatic Approaches to Performance, CSE distinguished lecture, University of Buffalo, April, 2023.
• Rusty & MPI, joint presentation with Marc Snir, given at the Symposium in Honor of Rusty Lusk, April 13-14, 2023. Argonne, IL.

2022

• Challenges for MPI in Its Third Decade, featured speaker at ExaMPI Workshop 2022, at SC22, Dallas, TX.
• Achieving High Performance with Node-Aware Algorithms, presented at the KAUST booth at SC22, Dallas, TX.
• Living With Complexity: Pragmatic Approaches to Performance, invited presentation at the SIAM Annual Meeting, Pittsburgh, PA, July 11-15, 2022.
• MPI RMA: Is It Time To Start Over?, keynote at Future of MPI (FoRMA), online, June 15-16, 2022.
• Challenges in Using Hierarchical Programming Approaches for Colossal Scale Systems, at Emerging Models of Colossal Computation (E=mc2), hybrid (Warsaw, Poland), May 17-19, 2022.
• MPI Past and Future, invited presentation at a Colloquium for Rolf Rabenseifner, May 13, 2022, held at HLRS and virtual.

2021

• MPI RMA: Where Next?, invited short talk at EuroMPI'21, virtual (Munich, Germany), Sept 7-8, 2021.

2020

• Surviving the End of Dennard Scaling: Challenges in Adapting and Sustaining Software for Heterogeneous Systems, Opening keynote for Software in the Era of Extreme Heterogeneity, Joint virtual workshop of High End Computing (HEC) and Software Productivity, Sustainability, and Quality (SPSQ) Interagency Working Groups, Sept 22-24,2020.

2019

• Challenges in intranode and internode programming for HPC systems, Masterworks Lecture Series, Lawrence Livermore National Laboratory, Livermore, CA, December 4, 2019.
• Challenges in Programming the Next Generation of HPC Systems, at ExxonMobil, Houston, TX, August 28, 2019.
• Introduction to HPC: Trends and Opportunities, keynote at Big Data and High-Performance for Financial Economics, Cambridge, MA, July 13, 2019. A video of the talk is available.
• Practical Solutions to Programming for Performance, panel presentation at ISC, Frankfurt, Germany, June 2019.
• Challenges in Programming the Next Generation of HPC Systems, invited talk at the 2019 Workshop on Recent Developments in Electronic Structure, Urbana, Illinois, May 20-22, 2019.
• Challenges in Intranode and Internode Programming for HPC Systems, invited talk at the 4th International High Performance Computing Forum, Chengdu, China, May 16-17, 2019.
• Challenges in Programming the Next Generation of HPC Systems, presentation at NIST, Gaithersburg, MD, March 19, 2019.
• Challenges in Programming the Next Generation of HPC Systems, Keynote at HPC Asia 2019, Guangzhou, China, January 14-16, 2019.

2018

• Challenges in Programming Extreme Scale Systems, at IPAM Workshop IV: New Architectures and Algorithms, IPAM, UCLA, November, 2018
• Challenges in Programming Extreme Scale Systems, Department of Computer Science Distinguished Lecture Series, UC Irvine, October 19, 2018.
• Using Node Information to Implement MPI Cartesian Topologies, EuroMPI'18, Barcelona, Spain, September 2018. Best paper.
• Managing Code Transformations for Better Performance Portability, at Workshop on Clusters, Clouds, and Data for Scientific Computing (CCDSC) 2018, Lyon, France, September, 2018.
• Thinking about Parallelism and Programming, keynote for 4th European Workshop on Parallel and Distributed Computing Education for Undergraduate Students (Euro-EDUPAR) at EuroPar'18, Turin, Italy, August, 2018.
• An Overview of the National Center for Supercomputing Applications, Research Computing Centre Seminar, University of Queensland, Australia (presented remotely), August 3rd, 2018.
• Argonne Training Program on Extreme Scale Computing includes several lectures on MPI programming. July, 2018
• Challenges for Developing & Supporting HPC Applications, Session (chaired) at ISC18, Frankfurt, Germany, 2018
• Using non-blocking communication to achieve scalability for preconditioned conjugate gradient methods, Paul Eller and William Gropp, at SIAM Conference on Parallel Processing for Scientific Computing, March 7-10, 2018, Tokyo, Japan.

2017

• Energy Efficiency Gains: Retrospectives and Perspectives, panel at SC17, Denver, 2017.
• Challenges in Programming Extreme Scale Systems, Keynote presented at Third International IEEE Workshop on Extreme Scale Programming Models and Middleware, Denver, 2017.
• Portability, Performance, and Dreams, Keynote presented at Dagstuhl Seminar 17431: Performance Portability in Extreme Scale Computing: Metrics, Challenges, Solutions, October 23-27, 2017, Dagstuhl, Germany.
• The Grass is Always Greener: Reflections on the Success of MPI and What May Come After, at Celebrating 25 Years of MPI, September 2017, Chicago, IL.
• Thoughts on Future Directions in Exascale, invited panel presentation at 3rd International High Performance Computing Forum, September 2017, Guangzhou, China.
• MPI+X for Extreme Scale Computing, invited talk at 3rd International High Performance Computing Forum, September 2017, Guangzhou, China.
• MPI+X for Extreme Scale Computing, invited talk at 12th International Conference on Parallel Processing and Applied Mathematics, September 2017, Lublin, Poland.
• Argonne Training Program on Extreme Scale Computing includes several lectures on MPI programming.
• MPI+X Exascale, at ISC, June, 2017, Frankfurt, Germany.
• MPI+X Exascale, at Gearing up for Exascale --- Challenges & Opportunities, May 2017, Princeton, NJ.
• MPI: The Once and Future King, distinquished lecture, at Rice University, April, 2017, Houston, Texas.
• Is the Pingpong Communication Model Still Relevant?, at the 18th Copper Mountain Conference on Multigrid Methods, March 2017, Copper Mountain, CO.

2016

• Meeting the Communication Needs of Applications, Keynote for First International Workshop in Communication Optimizations in HPC, November 2016, Salt Lake City, UT.
• Thinking About Parallelism and Programming, Presentation in the Ken Kennedy award session at SC16, November 2016, Salt Lake City, UT. A video of this presentation is available.
• Do You Know What Your I/O Is Doing? (and how to fix it?), at Workshop on Clusters, Clouds, and Data for Scientific Computing (CCDSC 2016), near Lyon, France, October, 2016.
• Modeling MPI Communication Performance on SMP Nodes: Is it Time to Retire the Ping Pong Test, with Luke Olson and Philipp Samfass, at EuroMPI16, September, 2016, Edinburgh, Scotland.
• MPI: The Once and Future King, Keynote at EuroMPI16, September, 2016, Edinburgh, Scotland.
• MPI+MPI: Using MPI-3 Shared Memory as a MultiCore Programming System for Extreme Scale Systems, Keynote at Frontiers in Energy-Efficient Computing and Applications, at Peking University, Center for Energy-Efficient Computing And Applications (CECA), August 25, 2016.
• Argonne Training Program on Extreme Scale Computing includes several lectures on MPI programming.
• Reproducibility of Computations and Distributed Data Structures, at Workshop on Batched, Reproducible, and Reduced Precision BLAS, May 18-19, 2016, Knoxville, TN.
• MPI+MPI: Using MPI-3 Shared Memory as a Multicore Programming System, at SIAM Conference on Parallel Processing for Scientific Computing, April 2016, Paris, France.

2015

• Do You Know What Your I/O is Doing?, at HPC China 2015, Wuxi, China, Nov 9-12, 2015.
• Do You Know What Your I/O is Doing?, at Russian Supercomputing Days, Moscow, Russia, Sep. 28-29, 2015.
• DAME: A Runtime-Compiled Engine for Derived Datatypes, Tarun Prabhu and William Gropp, at EuroMPI 2015, Bordeaux, France, Sep 21-23, 2015.
• Do You Know What Your I/O is Doing?, at 2015 Smokey Mountains Computational Sciences and Engineering Conference, Gatlinburg, Tennessee, Aug. 31-Sep. 2, 2015.
• Argonne Training Program on Extreme Scale Computing includes several lectures on MPI programming.
• MPI in 2020: Opportunities and Challenges, at ISC'15, Frankfurt, Germany, July 13-16, 2015.
• Software Challenges for Extreme-Scale Computing, at ISC'15, Frankfurt, Germany, July 13-16, 2015.
• Engineering for Performance in High Performance Computing, at ISC'15, invited workshop keynote, Frankfurt, Germany, July 13-16, 2015.
• AIAA Aviation 2015 Panel. Link provides recorded video for several events, including the panel "Supercomputing: Roadmap and its Future Role in Aerospace Engineering." Gropp was one of four panelists.
• Is MPI+X Enough for Exascale, Keynote for International High Performance Computing Forum, Tianjin, China, May 2015.
• The Future of the Message-Passing Interface, invited keynote at ISUM - 6th International Supercomputing Conference in Mexico, Mexico City, Mexico, March 9-13, 2015.
• Using MPI I/O for Big Data, invited presentation that the International Winter School on Big Data, Tarragona, Spain, January 26-30, 2015.

2014

• Shades of Grey, Panel presentation for "HPC Productivity or Performance: Choose One" at SC14.
• Is MPI+X Enough for Exascale, Keynote for EXAMPI2014 Workshop, Nov 2014.
• How to Replace MPI as the Scalable Programming System for Computational Science, presented at "20 Years of Beowulf: Workshop to Honor Thomas Sterling’s 65th Birthday," Annapolis, Maryland, October 13--14, 2014.
• Computing at a Cross-Roads: Big Data, Big Compute, and the Long Tail, invited presentation at CCDSC 2014, Chemin de Chanze, France, Sept 2-5, 2014.
• Argonne Training Program on Extreme Scale Computing includes several lectures on MPI programming.
• Engineering for Performance in High Performance Computing, invited presentation at PASC14, Zurich, Switzerland, June 2-3, 2014.
• Hybrid Programming: Preparing for Exascale, invited presentation at Exascale Technologies & Innovation in HPC for Climate Models, Cap San Diego, Uberseebrucke, Hamburg, March 17-19, 2014.
• A Tale of Two Timelines, SIAM/SC Career Prize talk at the SIAM Conference on Parallel Processing, February 18-21, 2014, Portland, Oregon.

2013

• Challenges for Multiphysics Simulations at Extreme Scale, invited talk at the International Conference on Scientific Computing, Paphos, Cyprus, Dec 3-6, 2013.
• Challenges for Algorithms and Software at Extreme Scale, invited talk at AICES, Aachen, Sept 6, 2013.
• MPI and Hybrid Programming Models at Extreme Scale Computing Training Program, St. Charles, Illinois, July 28-August 2, 2013.
• MPI for Scalable Computing at Extreme Scale Computing Training Program, St. Charles, Illinois, July 28-August 2, 2013.
• Changing How Programmers Think about Parallel Programming, ACM Webinar, July 16, 2013
• Challenges in HPC, Keynote at CyberBridges, Arlington, VA, July 15-16, 2013.
• Performance Modeling as the Key to Extreme Scale Computing, HPC Forum, Changsha, China, May 27-28, 2013.
• How would we define high-value in a Software Innovation Institute, NCSA PSP Annual Meeting and NSF Software Workshop, May 16, 2013.
• A Tale of Two Timelines, Invited presentation at Thirty Years of Parallel Computing at Argonne, May 14-15, 2013.
• Challenges for Algorithms and Software at Extreme Scale, Invited presentation at SIAM CSE, February 27-March 1, 2013, Boston, MA. The presentation is available.

2012

• Simulation at Extreme Scale, Invited presentation at Big Data Science: A Symposium in Honor of Martin Schultz, October 26, 2012, New Haven, Connecticut.
• The Next Generation of High Performance Computing, Keynote at the CADMOS Workshop on Large Scale Computing, Lausanne, Switzerland, September 26-27, 2012.
• MPI 3 and Beyond: Why MPI is Successful and What Challenges it Faces, invited Keynote at EuroMPI 2012, Vienna, Austria, September 24-26, 2012.
  See also the paper in the proceedings of that conference.
• Adaptive Strategy for One-sided Communication in MPICH2, at EuroMPI 2012, Vienna, Austria, September 24-26, 2012.
  See also the paper in the proceedings of that conference.
• Organized panel Crash and Burn: What will succeed and what will fail in Clusters, Clouds, and Data, at Clusters, Clouds, and Data for Scientific Computing (CCDSC 2012), Sept 11-14, 2012, Chateauform, La Maison des Contes, 427 Chemin de Chanze, France.
• Challenges for Algorithms at Extreme Scale, presented at Critical Challenges at the Interface of Mathematics and Enginnering, Kickoff meeting for the Initiative for Mathematical Sciences and Engineering, University of Illinois, Sept 17-18, 2012.
• Finding the Happy Medium: Tradeoffs in communication, algorithms, and programming models at the 1st CHANGES Workshop, Forschungszentrum Juelich, Germany, September 3-5, 2012.
• Algorithms and Software in the Post-Petascale Era, Keynote at the Fujitsu HPC Forum, August 20, 2012, Tokyo, Japan.
• Performance, Correctness, and Programmability: Challenges for Parallel Programming at Exascale, invited presentation at Productive Programming Models for Exascale, August 14-15, 2012, Portland, Oregon.
• Adaptive Thread Distributions for Sparse Matrix-Vector Multiply on a GPU, at the Extreme Scaling Workshop, July 15, 2012, Chicago, Illinois.
• Rethinking Solvers for Extreme Scale Architectures, invited presentation at DOE Workshop on Extreme-Scale Solvers: Preparing for Future Architectures (March 8-9, 2012, Washington, DC).
• The Next Generation of High Performance Computing, keynote presentation at the 19th International Conference on Computational Methods in Water Resources, June 17-21, 2012, Champaign, Illinois.
• Finding the Happy Medium: Tradeoffs in Communication, Algorithms, Architectures and Programming Models, invited presentation at Synchronization-reducing and Communication-reducing Algorithms and Programming Models for Large-scale Simulations (January 9-13, 2012).

2011

• The Challenges of Exascale, keynote at the Saudi Arabian High Performance Computing Symposium, December 5-7, 2011, Dammam, Saudia Arabia.
• Performance Modeling as the Key to Extreme Scale Computing, invited presentation, December 2, 2011, KAUST, Saudia Arabia.
• Performance Modeling as the Key to Extreme Scale Computing, keynote at PARCO, September 2, 2011, Ghent, Belgium.
• Engineering Performance for Multiphysics Applications, invited presentation at Multiphysics Simulations: Challenges and Opportunities, Park City, Utah, August 1-5, 2011.
• Update on Libraries for Blue Waters, presentation at the fifth workshop of the Joint Laboratory for Petascale Computing, Grenoble, France, June 13-15, 2011. This presentation introduces a new version of CG that uses nonblocking reductions to improve parallel scalability.
• Performance Modeling as the Key to Extreme Scale Computing, keynote at International Conference on Supercomputing (ICS), May 31-June 4, 2011, Tucson Arizona.
• Petascale Software Challenges, at NCSA Private Sector Partners Annual Meeting, May 3-4, 2011, Urbana, Illinois.
• Petascale Computing in Scientific Research at TEDxUIUC, February 19, 2011, Champaign, Illinois.

2010

• Panel Chair: Igniting Exascale Computing. At Clusters, Clouds, and Grids for Scientific Computing, CCGSC 2010, Flat Rock, North Carolina, September 7-10, 2010.
• Blue Waters: An Extrordinary Resource for Extraordinary Science, presented at Argonne National Laboratory, Argonne, Illinois, August 17, 2010.
• The Next Generation of High Performance Computing Keynote at HPCS 2010, June 2010, Caen, France.
• Invited Talk: HPC in 2010: How Do we Get There? at High Performance Computing Symposium, Singapore, June 16, 2010.
• Keynote: Enabling the Next Generation of Scalable Clusters at CCGRID'10, Melbourne, Australia, May, 2010.
• Extreme Computing at TEDxUIUC, April 10, 2010, Champaign, Illinois.
• Panel talk: Extreme Scale Computing: Challenges and Opportunities, at PPoPP'10, Bangalore, India.

2009

• MPI at Exascale: Challenges for Data Structures and Algorithms at EuroPVMMPI 2009 in Helsinki, Finland, September, 2009.
• Optimizing Sparse Data Structures for Matrix-Vector Multiply at the 1st Workshop of the INRIA/NCSA/IACAT Joint Laboratory, Paris, France, June 2009.

2008

• Invited Talk (Fernbach Award Talk): Computing in the Trans-PetaFLOP Era at SC2008, Austin, Texas, November, 2008.
• Invited Talk: Hybrid Programming, at Petascale Summer Workshop, Las Vegas, Nevada, June 9, 2008.
• Invited Talk: The Evolution of MPI, at 6th Annual Workshop on Charm++ and its Applications, Urbana, Illinois, May 1-3, 2008.
• Invited Keynote: Integrating Autotuning Into the Applications Development Environment, at Automatic Tuning of Libraies and Applications workshop at High Performance Computer Science Week.
• Organized HPCSW Panel: Scalable Computing: Petascale, Exascale and beyond.
• Building a Successful Scalable Parallel Numerical Library: Lessons From the PETSc Library, talk at the Gene Golub Symposium, February 29-March 1, 2008, Urbana, Illinois.

2007

• Invited presentation at the 22nd ORAP Forum, November 29, 2007, Strasbourg, France.
• Building a Successful Scalable Parallel Numerical Library: Lessons From the PETSc Library, Invited Keynote presentation at the Workshop on Software Issues in Computational Science and Engineering Uppsala University, Sweden, August 15-16, 2007.
• Invited panelist (Panel "Tools and Libraries", chair Jack Dongarra) at Workshop on Manycore Computing, Seattle, WA, June 20-21, 2007.
• Architecture Trends and Implications for Algorithms, invited plenary presentation at ASCR Applied Math PI Meeting, Livermore, CA, May 22-24, 2007.
• Panelist, Future Architectures, ASCR Applied Math PI Meeting, Livermore, CA, May 22-24, 2007.
• Challenges for the Message Passing Interface in the Petaflops Era, University of Illinois at Urbana-Champaign, March 26, 2007.
• MPI and High Productivity Programming, invited colloquia at Ohio State University, Columbus, OH, February 8, 2007.

2006

• MPI: The Last Large Scale Success, invited presentation at Workshop on Programming Languages for High Performance Computing (HPC WPL). Also presented A Realistic Future as part of a panel on parallel programming directions, and a Programming Models Summary providing a summary of the workshop.
• Overcoming the Barriers to Sustained Petaflop Performance, invited presentation at RWTH Aachen University of Technology, December, 2006. Also presented at Research Center Juelich, December, 2006.
• Half Full or Half Empty, invited panel presentation for Thomas Sterling's multicore panel at Supercomputing 2006, November 2006.
• SC2006 tutorial: Advanced MPI: I/O and One-Sided Communication, William Gropp, Ewing Lusk, Robert Ross, Rajeev Thakur.
• SC2006 tutorial: Application Supercomputing and Multiscale Simulation Techniques, Alice E. Koniges, David Eder, William Gropp, Ewing Lusk.
• Overcoming the barriers to sustained Petaflop Performance, invited talk at the 2006 Fall Creek Falls Conference, October 23-24, 2006.
• Issues in Developing a Thread-Safe MPI Implementation, with Rajeev Thakur, presented at Euro PVMMPI 2006, Bonn, Germany, September 18-20, 2006.
  Winner of one of three "best paper" prizes.
• Where Does MPI Need to Grow, invited presentation at Euro PVMMPI 2006, Bonn, Germany, September 18-20, 2006.
• Three Questions You Should Ask, invited panel presentation at Clusters and Computational Grids for Scientific Computing, Asheville, NC, September 10-13, 2006.
• Issues in Developing a Thread-Safe MPI Implementation, invited colloquia at the University of Utah, Salt Lake City, August 28, 2006.
• Can There Be a Common Communication Runtime System?, High Productivity Computer Systems Languages Workshop, Oak Ridge, Tennessee, July 12-13, 2006.
• Opportunities at Argonne National Laboratory, presented in the Workshop "Opportunities for Computing Research with Government Labs", CRA Conference at Snowbird 2006, Snowbird, Utah, June 25-27, 2006.
• System Software Issues for the Future, panel presentation at the 2006 BG/L Consortium System Software and Applications workshop, Tokyo, Japan, April 19-20, 2006.
• Overcoming the Barriers to Sustained Petaflop Performance, Invited presentation, Computational Science and Engineering Research Symposium (UIUC CSE day).
• Thoughts on Capacity Computing, Invited panel presentation on Capacity Computing at SOS 10, March 6-8, 2006.
• Beware of What You Wish For, Invited panel presentation on Data at SOS 10, Maui, Hawaii, March 6-8, 2006.
• Some Thoughts on Programming Languages for HPC, Invited panel presentation at Architectures and Algorithms for Petascale Computing, Dagstuhl, Germany, February 12-17, 2006.
• Overcoming the Barriers to Sustained Petaflop Performance, Presentation at Architectures and Algorithms for Petascale Computing, Dagstuhl, Germany, February 12-17, 2006.

2005

• A Science-Based Case for Large Scale Computation, Invited Keynote at SARA SuperDay, Amsterdam, The Netherlands, November 29, 2005.
• How to Replace MPI as the Programming Model of the Future, Invited talk at Workshop on the Frontiers of Extreme Computing, Santa Cruz, CA, October 24-27, 2005.
• Improving the Usability of Clusters, Invited Keynote at IEEE Cluster 2005, Boston, MA, September 26-29, 2005.
• Towards a Productive MPI Environment, Invited talk at Euro PVMMPI, Sorento, Italy September 19-21, 2005.
• Programming Models for High Performance Computing, MCS Review, Argonne, August 15-16, 2005.
• SciDAC-2 Software Integration, Maintenance, and Support (SSIMS) Workshop. Co-organized with Ricky Kendall and Roy Whitney. July 18-19, Argonne National Laboratory.
• SIAM Short Course on Computer Architecture for Mathematicians and Numerical Analysts, SIAM National Meeting, New Orleans, July 10-12, 2005.
• Future Technologies that may Facilitate Science Breakthroughs Chair of Panel at SOS 9, Davos, Switzerland, March 21-23, 2005.
• Some Myths in High Performance Computing, Invited dinner presentation at Northwest Indiana Computational Grid HPC Workshop, Purdue University, Indiana, March 8-9, 2005.
• First Light with BlueGene/L At Argonne, Invited presentation at Northwest Indiana Computational Grid HPC Workshop, Purdue University, Indiana, March 8-9, 2005.

2004

• Advanced Programming Technology: Abstraction Acceleration, Review of CS program in MCS, Argonne, December 7, 2004.
• Is OpenMP for Users?, invited presentation at OpenMP BOF, Supercomputing 2004, Pittsburgh, November 7-12, 2004.
• Grids and Clusters: Lessons for Deployment and Operation, Clusters and Computational Grids for Scientific Computing, Lyon, France, September 26-29, 2004.
• MPI and High Productivity Programming, Invited talk at Euro PVMMPI, Budapest, Hungary, September 19-22, 2004.
• Software for Exaflops ComputingInvited presentation at the Workshop on the Path to Extreme Supercomputing, LASCI 2004, October 12, Santa Fe, New Mexico.
• How Not to Measure Performance: Lessons from Parallel Computing, presented at the Grid Performance Workshop 2004, London, UK, May 12-13, 2004.
• The Triumph of Hope over Experience, invited panel presentation for visions of the future at SOS8, Charleston, SC, April 12-14, 2004.
• MPICH2: A High-Performance, Portable Implementation of MPI, Invited presentation with Ewing Lusk at ClusterWorld Conference and Expo, April 5-8, 2004., San Jose, CA.
• Algorithms and Architecture, invited presentation at the Advanced Computational Materials Science Workshop, Washington D.C., March 31-April 2, 2004.
• Parallel Programming With MPI, invited guest lecture in APMA 4990 "Introduction to Parallel Scientific Computing", Columbia University, March 10, 2004.
• Expressing Fault Tolerant Algorithms with MPI-2, at the Workshop on Fault Tolerance for MPI Implementors, SIAM Parallel Processing Meeting, San Francisco, CA, February 24, 2004.
• Computer Algorithms and Architectures, invited presentation at Computation Institute Fellows Meeting, January, 2004.

2003

• Using MPI-2: A Tutorial on Advanced Features of the Message-Passing Interface Standard, William Gropp, Ewing Lusk, Rob Ross, Rajev Thakur, SC2003, Phoenix, AZ, November 16-21, 2003.
• PETSc, a hands-on tutorial presented at the Fourth ACTS Collection Workshop, August 5-8, 2003, Berkeley, California. Included a hands-on session.
• Algorithms and Architecture, at Solution Methods for Large-Scale Nonlinear Problems, Livermore, CA, August 6-8, 2003.
• , Invited presentation at the Advance School for Computing and Imaging (ASCI), Heijen, The Netherlands, June 4-6, 2003.
• Invited panel presentation on "Closing the Performance Gap", DOE SciDAC PI Meeting, Napa, CA. March 10-13, 2003.
• At the 7th Workshop on Distributed Supercomputing (SOS7):
  • Report on the project meeting of the Center for Programming Models
  • MPI and Its Future
  • Crystal Ball Panel
• Trends in High Performance Computing, invited presentation at "High Performance Computing with QCDOC and BlueGene", Brookhaven, NY.
• Algorithms and Architectures, Invited Plenary presentation at the SIAM Computational Science and Engineering meeting, San Diego, Februrary, 2003.

2002

• Using MPI-2: A Tutorial on Advanced Features of the Message-Passing Interface Standard, William Gropp, Ewing Lusk, Rob Ross, and Rajeev Thakur, SC2002, Baltimore, MD, November 16-22, 2002.
• MPI on the Grid (PDF), a short tutorial presented at PVMMPI'02, Linz, Austria.
• Parallel Tools, U of C Review of MCS on September 18-19th, 2002
• MPI - The Best High Performance Programming Model for Clusters and Grids, invited presentatation at Cluster and Computational Grids for Scientific Computing, September 10-13, 2002, Le Chateau de Faverges de la Tour, France.
• Challenges and Successes in Achieving the Potential of MPI, invited presentation at the 8th PVMMPI meeting, Santorini, Greece.
• Some thoughts on programming models for MPIMS, invited presentation at the Workshop on the Implementation of Massive PIM Systems, Bodega Bay, CA.
• Myths in Parallel Programming, SCCM Seminar, Stanford University, Feb 11, 2002.

2001

• Learning from the Success of MPI, keynote presented at HiPC 2001, Hydrabad, India.
• PETSc, invited presentation at the CSGF (Computational Science Graduate Fellowship) Fellows Conference, Washington, DC. July 19-21, 2001.
• Experiences with Parallel Numerical Software Interoperability, with Lois McInness, at ISCR/CASC Components Workshop, July 23-25, 2001, Livermore, California.

2000

• "An Implementer’s View of MPI," Invted talk at the Fourth Annual High Performance Fortran User Group meeting (HUG2000), Tokyo, Japan, Oct 19-20, 2000.
• "Runtime Checking of Datatype Signatures in MPI," at EuroPVM/MPI'2000, Balatonfuered, Lake Balaton, Hungary, Sept. 10-13, 2000.
• "MPICH2000 - A High-Performance Implementation of MPI-2," invited talk at EuroPVM/MPI'2000, Balatonfuered, Lake Balaton, Hungary, Sept. 10-13, 2000.
• "A Scalable Process-Management Environment for Parallel Programs," R. Butler, W. Gropp, and E. Lusk, at EuroPVM/MPI'2000, Balatonfuered, Lake Balaton, Hungary, Sept. 10-13, 2000.
• High Performance Communication, I: MPI-1, point-to-point and collective and High Performance Communication, II: MPI/OpenMP tradeoffs, and communication monitoring tools, presented at the "Power Programming Short Course", LLNL, May 15-17, 2000. The workshop was organized by ISCR.
• A User's View of OpenMP: The Good, The Bad, and The Ugly, keynote talk at WOMPAT 2000 in San Diego, CA.
• "Solving CFD Problems with Open Source Parallel Libraries", invited presentation at PARA2000, Jun 18-21, 2000, Bergen, Norway.
• Myths in Parallel Programming for Scientific Computing, invited talk presented at the International Advanced Research Workshop on "High Performance Computing: Technology and Applications," (HPC2000) in Cetraro, Italy, June 12-15, 2000.
• "Scientific Discovery Through Advanced Computing", presentation to Argonne Sustaining/Industrial Partnerships Committee, April 10th, 2000.
• "MPI Trends and Technology", invited talk at the 4th Annual National Symposium on Computational Science and Engineering (ANSCSE4), Bangkok, Thailand, March 27-29, 2000. Also presented the tutorial, "Short Course on the Portable Extensible Toolkit for Scientific Computation (PetSc)", March 27, 2000.
• "Achieving Scalable Performance in an Unstructured Mesh CFD Application," at Scalable Solver Software 2000" workshop, GMD, Germany, February 28-March 1, 2000.

1999

• MPI: A Model for Managing Memory Hierarchy, invited talk at Frontiers'99
• Error Messages in Libraries , an ALICE brown-bag presentation. This talk describes the approach used for error messages in MPICH.
• Improving the Performance of MPI Data types, with Rusty Lusk and Debbie Swider, presented in March 1999 at the MPI Developers' Conference in Atlanta.
• Tutorial: Advanced MPI, April 6-7, 1999, Naval Research Laboratory, Monterey, California.
• A Standard Interface for Debugger Access to Message Queue Information in MPI, EuroPVM/MPI'99, W. Gropp and J. Cownie, Sept 26-29, Barcelona, Spain.
• Reproducible Measurements of MPI Performance Characteristics, W. Gropp and E. Lusk, EuroPVM/MPI'99, W. Gropp and J. Cownie, Sept 26-29, Barcelona, Spain.

1998

• Tutorial on MPI and I/O, February 19-21, 1998, Utrecht, The Netherlands.
• Tutorial "Introduction to Performance Issues in Using MPI for Communication and I/O", W. Gropp, E. Lusk, and R. Thakur, at HPDC-7, Drake Hotel, Chicago, July 28-31.
• Is Performance Predictable, presented at the 1998 International Workshop on Innovative Architecture (IWIA '98), 26-28 October 1998, Maui.
• Panel talk at Grids'98: Panel title was "What Can't Grids Do". Drake Hotel, Chicago, July 26-28, 1998.

1997

• Performance Driving Programming Models, at MPPM'97, London, UK, Nov 12-14, 1997.