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Playlist "All Systems Go! 2024"

Lessons learned from migrating AI accelerator drivers from the kernel to userspace

George Utsin

The kernel driver is dead; long live the userspace driver! In this talk, we’ll discuss the motivation, challenges and outcomes of migrating drivers for Meta’s AI accelerator chips from the kernel to userspace.

Topics include:
- Managing systemd units at scale
- Experiences of running IPC over D-Bus
- Re-writing the driver in Rust
- The tooling necessary to support a variety of environments
- Overall deprecation challenges and wins

Licensed to the public under https://creativecommons.org/licenses/by/4.0/de/