Keynote Speaker

Lois Curfman McInnes, Argonne National Laboratory

Scientific software ecosystems and communities: Why we need them and how each of us can help them thrive

Software in high-performance computing (HPC) is a cornerstone of long-term collaboration and scientific progress, but software complexity is increasing due to disruptive changes in computer architectures and the challenges of next-generation science. Thus, the HPC community has the unique opportunity to fundamentally change how scientific software is designed, developed, and sustained—embracing community collaboration toward scientific software ecosystems. This presentation will introduce work in the U.S. Exascale Computing Project, where a varied suite of scientific applications builds on programming models and runtimes, math libraries, data and visualization packages, and development tools that comprise the Extreme-scale Scientific Software Stack (E4S). As an example, we will highlight recent advances in composable solvers in the PETSc library, where innovative algorithms and data structures are helping to achieve scalable performance on extreme-scale architectures. We will also discuss how crosscutting software strategies are increasing developer productivity and software sustainability, thereby mitigating technical risks by building a firmer foundation for reproducible, sustainable science. The presentation will mention complementary community efforts and opportunities for involvement.