IMPORTANT: To view this page as Markdown, append `.md` to the URL (e.g. /docs/manual/basics.md). For the complete Mojo documentation index, see llms.txt.
Skip to main content
Version: 1.0
For the complete Mojo documentation index, see llms.txt. Markdown versions of all pages are available by appending .md to any URL (e.g. /docs/manual/basics.md).

barrier

barrier()

Performs a synchronization barrier at the block level.

This is equivalent to __syncthreads() in CUDA. All threads in a thread block must execute this function before any thread can proceed past the barrier. This ensures memory operations before the barrier are visible to all threads after the barrier.