NAME

       PAPI_library_init -

       initialize the PAPI library.

SYNOPSIS

Detailed Description

       Parameters:
           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.

       Return values:
           PAPI_EINVAL papi.h is different from the version used to compile the PAPI library.
           PAPI_ENOMEM Insufficient memory to complete the operation.
           PAPI_ECMP This component does not support the underlying hardware.
           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() .

       Examples:

           int retval;
           retval = PAPI_library_init(PAPI_VER_CURRENT);
           if (retval != PAPI_VER_CURRENT && retval > 0) {
               fprintf(stderr,"PAPI library version mismatch!\n");
               exit(1); }
           if (retval < 0)
               handle_error(retval);
           retval = PAPI_is_initialized();
           if (retval != PAPI_LOW_LEVEL_INITED)
               handle_error(retval)

       See Also:
           PAPI_thread_init PAPI

Author

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