Async Copy and Prefetch Functions
Asynchronous copies between global and local memory and a prefetch from global memory.
| async_work_group_copy | Perform an async copy |
| wait_group_events | Wait for events that identify the async_work_group_copy operations to complete. |
| prefetch | Prefetch bytes into the global cache. |
Description
The OpenCL C programming language implements these functions that provide asynchronous copies between global and local memory and a prefetch from global memory. The generic type name gentype indicates the built-in data types char, char{2|4|8|16}, uchar, uchar{2|4|8|16}, short, short{2|4|8|16}, ushort, ushort{2|4|8|16}, int, int{2|4|8|16}, uint, uint{2|4|8|16}, long, long{2|4|8|16}, ulong, ulong{2|4|8|16} or float, float{2|4|8|16} as the type for the arguments unless otherwise stated.
The built-in async copy and prefetch functions are extended with cl_khr_fp64 to include appropriate versions of functions that take double, and double{2|4|8|16} as arguments. They are also extended with with cl_khr_fp16 to include appropriate versions of functions that take half, and half{2|4|8|16} as arguments.
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