initialize the PAPI library. More...
@param version upon initialization, PAPI checks the argument against the internal value of PAPI_VER_CURRENT when the library was compiled. This guards against portability problems when updating the PAPI shared libraries on your system. @retval PAPI_EINVAL papi.h is different from the version used to compile the PAPI library. @retval PAPI_ENOMEM Insufficient memory to complete the operation. @retval PAPI_ECMP This component does not support the underlying hardware. @retval PAPI_ESYS A system or C library call failed inside PAPI, see the errno variable. PAPI_library_init() initializes the PAPI library. PAPI_is_initialized() check for initialization. It must be called before any low level PAPI functions can be used. If your application is making use of threads PAPI_thread_init must also be called prior to making any calls to the library other than PAPI_library_init() . @par Examples: