wait_group_events.adoc

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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_group_events waits 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. This rule applies to ND-ranges implemented with uniform and non-uniform work-groups.

Notes

The kernel must wait for the completion of all async copies using the wait_group_events built-in function before exiting; otherwise the behavior is undefined.

Also see

Async Copy and Prefetch Functions

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