For the complete documentation index, see llms.txt. Markdown versions of all pages are available by appending .md to any URL (e.g. /get-started.md).

Mojo function

sm_id

def sm_id() -> Int

Returns the Streaming Multiprocessor (SM) ID of the current thread.

The SM ID uniquely identifies which physical streaming multiprocessor the thread is executing on. This is useful for SM-level optimizations and understanding hardware utilization.

If called on non-NVIDIA GPUs, this function aborts as this functionality is only supported on NVIDIA hardware.

Returns:

Int: The SM ID of the current thread.