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 package

primitives

GPU primitives package - block, cluster, and grid-level operations.

This package provides low-level GPU execution primitives at various levels of the GPU hierarchy:

• block: Block-level operations (reductions across thread blocks)
• cluster: Cluster-level synchronization (SM90+)
• grid_controls: Grid dependency control (Hopper PDL)

These primitives form the foundation for GPU kernel development.

Modules

• ​block: GPU block-level operations and utilities.
• ​cluster: This module provides low-level NVIDIA GPU cluster synchronization primitives for SM90+ architectures.
• ​grid_controls: Grid Dependent Control primitives for NVIDIA Hopper (SM90+) GPUs.