wait_group_events

Wait for events that identify the async_work_group_copy operations to complete.

void wait_group_events ( int num_events,
  event_t *event_list)

Description

Wait for events that identify the async_work_group_copy operations to complete. The event objects specified in event_list will be released after the wait is performed.

This function must be encountered by all work-items in a work-group executing the kernel with the same num_events and event objects specified in event_list; otherwise the results are undefined.

Notes

The OpenCL C programming language implements Async Copy and Prefetch 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.

If extended with cl_khr_fp64, generic type name gentype may indicate double and double{2|4|8|16} as arguments and return values. If extended with cl_khr_fp16, generic type name gentype may indicate half and half{2|4|8|16} as arguments and return values.

Specification

OpenCL Specification

Also see

Async Copy and Prefetch Functions

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