void ITTAPI __itt_task_begin_fn (const __itt_domain * domain,
void * fn
Traces the beginning of a task identified by its function pointer rather than its name. These tasks provide the source location information in the Intel® GPA Platform Analyzer Task Tree and Relations panels when symbol information is available. See Symbol Resolution for Function Tasks for more information.
[in] domain The domain for this task
[in] taskid The identifier for this task instance, or __itt_null
[in] parentid The parent of this task, or __itt_null
[in] fn The pointer to the function that represents the task you are tracing