PAPI_thread_init(3) PAPI PAPI_thread_init(3)NAMEPAPI_thread_init-
Initialize thread support in the PAPI library.
SYNOPSISDetailed Description
Parameters:
*id_fn Pointer to a function that returns current thread ID.
PAPI_thread_init initializes thread support in the PAPI library.
Applications that make no use of threads do not need to call this
routine. This function MUST return a UNIQUE thread ID for every new
thread/LWP created. The OpenMP call omp_get_thread_num() violates this
rule, as the underlying LWPs may have been killed off by the run-time
system or by a call to omp_set_num_threads() . In that case, it may
still possible to use omp_get_thread_num() in conjunction with
PAPI_unregister_thread() when the OpenMP thread has finished. However
it is much better to use the underlying thread subsystem's call, which
is pthread_self() on Linux platforms.
if ( PAPI_thread_init(pthread_self) != PAPI_OK )
exit(1);
See also:
PAPI_register_thread PAPI_unregister_thread PAPI_get_thr_specific
PAPI_set_thr_specific PAPI_thread_id PAPI_list_threads
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.1.1.0 Tue May 21 2013 PAPI_thread_init(3)
