The Sched app allows you to build your schedule but is not a substitute for your event registration. You must be registered for the event to participate in the sessions. If you have not registered but would like to join us, please go to the event registration page to find out more information.
This schedule is automatically displayed in Central Time (UTC/GMT -6 hours). To see the schedule in your preferred timezone, please select from the drop-down menu to the right, above "Filter by Date."
IMPORTANT NOTE: Timing of sessions and room locations are subject to change.
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Traditional GPU programming with libraries like CUDA or HIP requires tuning parameters exposed to the user, for example block sizes or number of teams. Kokkos also exposes portable parameters to the Kokkos user. How can Kokkos application programmers easily tune these Kokkos parameters for their application’s deployment when using any given Kokkos backend, without incurring large overheads? In particular, how do we ensure the tuning itself is portable across platforms? We propose using online, i.e., runtime, autotuning, utilizing the APEX Kokkos Tools connector to tune exposed parameters. Specifically, we discuss the Kokkos Tools Tuning Interface, tuning contexts, variable definition, the APEX runtime auto-tuning library utilizing Kokkos Tools, and distributed Kokkos auto-tuning. Applying our auto-tuning approaches to Kokkos sample kernels on Perlmutter and Frontier, we have obtained promising performance results. These results suggest Kokkos online auto-tuning is beneficial for production applications, and we invite Kokkos users to try these features and for Kokkos developers to contribute.
