PAPI_unregister_thread(3) PAPI PAPI_unregister_thread(3)NAMEPAPI_unregister_thread-
Notify PAPI that a thread has 'disappeared'.
SYNOPSISDetailed Description
Return values:
PAPI_ENOMEM Space could not be allocated to store the new thread
information.
PAPI_ESYS A system or C library call failed inside PAPI, see the
errno variable.
PAPI_ECMP Hardware counters for this thread could not be
initialized.
PAPI_unregister_thread should be called when the user wants to shutdown
a particular thread and free the associated thread ID. THIS IS
IMPORTANT IF YOUR THREAD LIBRARY REUSES THE SAME THREAD ID FOR A NEW
KERNEL LWP. OpenMP does this. OpenMP parallel regions, if separated by
a call to omp_set_num_threads() will often kill off the underlying
kernel LWPs and then start new ones for the next region. However,
omp_get_thread_id() does not reflect this, as the thread IDs for the
new LWPs will be the same as the old LWPs. PAPI needs to know that the
underlying LWP has changed so it can set up the counters for that new
thread. This is accomplished by calling this function.
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Mon Oct 28 2013 PAPI_unregister_thread(3)
