PAPI_thread_init Class Reference

Initialize thread support in the PAPI library. More...


Detailed 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

The documentation for this class was generated from the following file:

Generated on 17 Nov 2016 for PAPI by  doxygen 1.6.1