Provided by: libpapi-dev_7.0.0-3_amd64 bug

NAME

       PAPI_thread_init -

       Initialize thread support in the PAPI library.

SYNOPSIS

Detailed Description

       @param *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

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