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SWDEV-538999 - Make correction in porting guide for launch_bounds #3839

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SWDEV-538999 - Make correction in porting guide for launch_bounds #3839

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5 changes: 2 additions & 3 deletions docs/how-to/hip_porting_guide.rst
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Expand Up @@ -624,13 +624,12 @@ implementation, however it uses different parameters:
The first parameter is the same as HIP's implementation, but
``MIN_BLOCKS_PER_MULTIPROCESSOR`` must be converted to
``MIN_WARPS_PER_EXECUTION``, which uses warps and execution units rather than
blocks and multiprocessors. This conversion is performed automatically by
:doc:`HIPIFY <hipify:index>`, or can be done manually with the following
blocks and multiprocessors. This conversion can be done manually with the following
equation.

.. code-block:: cpp

MIN_WARPS_PER_EXECUTION_UNIT = (MIN_BLOCKS_PER_MULTIPROCESSOR * MAX_THREADS_PER_BLOCK) / warpSize
MIN_WARPS_PER_EXECUTION_UNIT = (MIN_BLOCKS_PER_MULTIPROCESSOR * MAX_THREADS_PER_BLOCK) / (warpSize * NUM_EUS_PER_CU)

Directly controlling the warps per execution unit makes it easier to reason
about the occupancy, unlike with blocks, where the occupancy depends on the
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