Initialize thread support in the PAPI library.
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 )
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|Fri Mar 10 2023||Version 22.214.171.124|