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neon60 committed Oct 2, 2024
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Expand Up @@ -41,11 +41,15 @@ The thread hierarchy abstraction of cooperative groups are in :ref:`grid hierarc

Cooperative group thread hierarchy in grids.

The **multi grid** is an abstraction of potentially multiple simultaneous launches of the same kernel over multiple devices (Deprecated since 5.0). The **grid** in cooperative groups is a single dispatch of kernels for execution like the original grid.
The **multi grid** is an abstraction of potentially multiple simultaneous
launches of the same kernel over multiple devices. The **grid** in cooperative
groups is a single dispatch of kernels for execution like the original grid.

.. note::

The ability to synchronize over a grid or multi grid requires the kernel to be launched using the specific cooperative groups API.
* The ability to synchronize over a grid or multi grid requires the kernel to
be launched using the specific cooperative groups API.
* Multi grid deprecated since ROCm 5.0.

The **block** is the same as the :ref:`inherent_thread_model` block entity.

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