papi_is_initialized(3) [centos man page]

PAPI_is_initialized(3)						       PAPI						    PAPI_is_initialized(3)

NAME

       PAPI_is_initialized -

       check for initialization

SYNOPSIS

Detailed Description
       @retval PAPI_NOT_INITED
	   Library has not been initialized
       @retval PAPI_LOW_LEVEL_INITED
	   Low level has called library init
       @retval PAPI_HIGH_LEVEL_INITED
	   High level has called library init
       @retval PAPI_THREAD_LEVEL_INITED
	   Threads have been inited

       @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.
       @par Examples:

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

	PAPI_is_initialized() returns the status of the PAPI library. The PAPI library can be in one of four states, as described under RETURN
       VALUES.

       See Also:
	   PAPI

	   PAPI_thread_init

Author
       Generated automatically by Doxygen for PAPI from the source code.

Version 5.2.0.0 						  Tue Jun 17 2014					    PAPI_is_initialized(3)

PAPI_library_init(3)						       PAPI						      PAPI_library_init(3)

NAME

       PAPI_library_init -

       initialize the PAPI library.

SYNOPSIS

Detailed Description
       @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:

       *       int retval;
       *       retval = PAPI_library_init(PAPI_VER_CURRENT);
       *       if (retval != PAPI_VER_CURRENT && retval > 0) {
       *	   fprintf(stderr,"PAPI library version mismatch!
");
       *	   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
       Generated automatically by Doxygen for PAPI from the source code.

Version 5.2.0.0 						  Tue Jun 17 2014					      PAPI_library_init(3)