Panel, SC25, St. Louis, Missouri, USA
At SC26, I was invited to serve on the ISO C++ Standards Committee panel to discuss the next major standard, C++26. We covered new features most critical for HPC, including updates on SIMD, structured concurrency, linear algebra, and the general state of the C++ union for parallel programming.
Tutorial, SC25, St. Louis, Missouri, USA
I helped lead the tutorial, Portable GPU Acceleration of HPC Applications with Standard C++. This session focused on leveraging ISO C++23 parallelism and concurrency features to portably accelerate HPC applications on heterogeneous systems (AMD, Intel, NVIDIA GPUs) without vendor-specific extensions. We provided hands-on experience covering classic HPC patterns like multi-dimensional loops, reductions, and overlapping MPI communication with GPU computation.
Graduate course, Georgia Tech, School of Computational Science and Engineering, Atlanta, Georgia, USA
I was honored to serve as a guest lecturer for the third time in Georgia Tech’s High Performance Parallel Computing graduate course (CSE-6230-A). I provided students with an introduction to Kokkos, demonstrating how this portability ecosystem enables single-source C++ code to run efficiently across highly diverse HPC architectures, including CPUs and GPUs.
Lightning Talk, Birdaro Training Program Lightning Talks, Oak Ridge, Tennessee, USA
This talk, presented as part of the inaugural CSCCE Birdaro Training Program for Open-Source Leaders, detailed the strategic decision by the Kokkos leadership to pursue a neutral home for the project.
Invited Talk, HPC Best Practices Webinars Series, Oak Ridge, Tennessee, USA
I recently had the honor of presenting an extended talk in the HPC Best Practices Webinar series, addressing the fundamental challenges of maintaining foundational scientific computing software for longevity.
Tutorial, 54th International Conference on Parallel Processing, San Diego, California, USA
Christian and I were thrilled to present a two-day Kokkos lecture at the International Conference on Parallel Processing (ICPP) in San Diego. This was part of the inaugural HPSF training, which also featured sessions on Spack and Trilinos.
Talk, ADAC Portability, Sustainability & Integration Seminar, Saclay, France
I recently had the pleasure of co-presenting a seminar titled “Sustaining the Future of HPC: The Role of the HPSF” at the Portability, Sustainability & Integration seminar series, a key initiative of the Accelerated Data Analytics and Computing (ADAC) Institute. I spoke alongside my colleague Julien Bigot from CEA in France. Julien and I both serve on the High Performance Software Foundation (HPSF) governing board, and our talk highlighted the HPSF’s crucial role in ensuring the longevity and effectiveness of High Performance Computing.
Talk, CExA Kokkos Tea-Time, Saclay, France
I was pleased to present a session on “Kokkos Best Practices” as part of the CExA Kokkos Tea-Time talk series. This talk focused on practical strategies for effectively integrating Kokkos into projects using CMake. I discussed key considerations such as managing Kokkos through external installations versus in-project builds, and provided detailed guidance on the recommended initialization and finalization procedures for Kokkos within libraries and applications. This session aimed to equip developers with the tools and knowledge necessary to leverage Kokkos efficiently and effectively in their work.
Invited Talk, SOS27 Workshop, Engelberg, Switzerland
I was invited to present at the prestigious, invitation-only SOS27 workshop, themed “Fostering Innovation at Scale Beyond the Flops.” My presentation, “Sustainable HPC Software: Lessons from the Trenches (A Maintainer’s Perspective),” contributed to the session on “HPC Software Sustainability and Stewardship.” I shared firsthand experiences and insights gained from maintaining and leading the Kokkos project for over five years, addressing the critical challenges and solutions in ensuring the longevity and effectiveness of HPC software in today’s rapidly evolving landscape.
Tutorial, Research Institute for Information Technology, Kyushu University, Kyushu, Japan
Christian and I had the pleasure of presenting a one-day Kokkos tutorial at Kyushu University in Japan. The workshop was organized by the HPC OSS1 group of the PC Cluster Consortium (PCCC). You can find more details about the workshop on the PCCC website: https://www.pccluster.org/ja/event/2025/01/250127-hpc-oss-ws.html
High-Performance Computing (HPC) Open-Source Software (OSS) ↩
Invited Talk, Princeton Plasma Physics Laboratory (PPPL), Princeton, New Jersey, USA
I presented remotely a short introduction to Kokkos at PPPL’s Center for Advanced Computation Tutorials. PPPL is renowned for its work on XGC, a gyrokinetic particle-in-cell code crucial for simulating the edge region of magnetically confined thermonuclear fusion plasmas. XGC utilizes Kokkos and Cabana to achieve high performance on leadership-class supercomputers.
BoF Session, Consortium for the Advancement of Scientific Software (CASS) first virtual Birds-of-a-Feather (BoF) days, Oak Ridge, Tennessee, USA
I organized and led a virtual Kokkos Birds-of-a-Feather session for CASS, the Consortium for the Advancement of Scientific Software.
Multiday training event, Maison de la Simulation, CEA Paris-Saclay center, Saclay, France
Luc (@lucbv) and I traveled to CEA Saclay (France) to deliver a 3-day training session with the CExA team.
Tutorial, Training Event, National Computational Infrastructure, Canberra, Australia
I conducted Kokkos training for NCI (Australia), focusing on enabling performance portability across diverse hardware architectures through practical, hands-on experience.
Panel, ISC High Performance 2024, Hamburg, Germany
At ISC 2024, I chaired the ‘C++ for HPC’ panel, which focused on the significant new features in C++23 and the ongoing development of C++26 for high-performance computing environments.
Graduate course, Georgia Tech, School of Computational Science and Engineering, Atlanta, Georgia, USA
I was invited to return to Georgia Tech for a guest lecture in Spring 2024.
Invited Talk, SC23: Featured Speaker at the DOE Booth, Denver, Colorado, USA
Thrilled to share the Kokkos team’s vision for exascale computing at SC23! Christian and I presented at the DOE Booth, discussing how Kokkos is empowering applications to reach new heights of performance.
Panel, SC23, Denver, Colorado, USA
At SC23, I was invited to join the ‘C++ 23, the “Pandemic” Edition and C++ NEXT in 2026’ panel, where we explored the significant features of C++23 and the roadmap for C++26, with a focus on its impact on HPC.
Multiday training event, Maison de la Simulation, CEA Paris-Saclay center, Saclay, France
Christian (@crtrott) and I were invited to CEA Saclay, France, for the CExA project kickoff, where we delivered a presentation and conducted a three-day training session to bootstrap the new Kokkos developer team and application representatives.
Tutorial, Delft University of Technology, Delft, Netherlands
I taught a introductory tutorial on Kokkos and Kokkos Kernels with Luc (@lucbv) at the European Trilinos User Group Meeting hosted by TU Delft.
Invited Talk, On the trail to exascale workshop, STFC Hartree Centre, Warrington, UK
I was invited to share my experience with Kokkos and its application in ArborX for performance portable geometric algorithms at the STFC Hartree Centre (UK), as one of a select group of US representatives.
Invited Talk, SOS-25 Workshop, Lake Tahoe, CA, USA
I was invited speaker at SOS-25, a prestigious workshop on distributed supercomputing. I shared insights on how scientists are leveraging Kokkos to overcome the limitations of standard C++ and harness the power of modern supercomputers
Graduate course, Georgia Tech, School of Computational Science and Engineering, Atlanta, Georgia, USA
I delivered a guest lecture on the Kokkos programming model for high-performance computing to students in Georgia Tech’s CSE 6230: HPC Tools and Applications during Spring 2023.
Talk, 2023 Exascale Computing Project Annual Meeting, Houston, Texas, USA
Invited Talk, SC22: 3rd Workshop on Hierarchical Parallelism for Exascale Computing (HiPar), Dallas, Texas, USA
I gave the opening keynote at the 2022 IEEE/ACM International Workshop on Hierarchical Parallelism for Exascale Computing, during SC22.
Tutorial, Argonne Training Program on Extreme-Scale Computing (ATPESC), St. Charles, IL, USA
I was invited to present a Kokkos tutorial in the “Programming Models and Languages” track at the Argonne Training Program on Extreme-Scale Computing (ATPESC 2022). The tutorial was attended by over 70 participants and parked engaging questions and discussion, including a lively panel session. Recordings are available on YouTube: Part 1, Part 2, Pannel.