papi_accum(3) [centos man page]

PAPI_accum(3)							       PAPI							     PAPI_accum(3)

NAME

       PAPI_accum -

       Accumulate and reset counters in an EventSet.

SYNOPSIS

Detailed Description
       @par C Interface:
       int PAPI_accum( int  EventSet, long_long * values );

       These calls assume an initialized PAPI library and a properly added event set.
       PAPI_accum adds the counters of the indicated event set into the array values.
       The counters are zeroed and continue counting after the operation.
       Note the differences between PAPI_read and PAPI_accum, specifically
       that PAPI_accum resets the values array to zero.

       @param EventSet
	   an integer handle for a PAPI Event Set
	   as created by PAPI_create_eventset
       @param *values
	   an array to hold the counter values of the counting events

       @retval PAPI_EINVAL
	   One or more of the arguments is invalid.
       @retval PAPI_ESYS
	   A system or C library call failed inside PAPI, see the errno variable.
       @retval PAPI_ENOEVST
	   The event set specified does not exist.

       @par Examples:

       *   do_100events( );
       *   if ( PAPI_read( EventSet, values) != PAPI_OK )
       *   handle_error( 1 );
       *   // values[0] now equals 100
       *   do_100events( );
       *   if (PAPI_accum( EventSet, values ) != PAPI_OK )
       *   handle_error( 1 );
       *   // values[0] now equals 200
       *   values[0] = -100;
       *   do_100events( );
       *   if (PAPI_accum( EventSet, values ) != PAPI_OK )
       *   handle_error( 1 );
       *   // values[0] now equals 0
       *

       See Also:
	   PAPIF_accum

	   PAPI_start

	   PAPI_set_opt

	   PAPI_reset

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

Version 5.2.0.0 						  Tue Jun 17 2014						     PAPI_accum(3)

PAPI_remove_event(3)						       PAPI						      PAPI_remove_event(3)

NAME

       PAPI_remove_event -

       removes a hardware event from a PAPI event set.

SYNOPSIS

Detailed Description
       A hardware event can be either a PAPI Preset or a native hardware
       event code.  For a list of PAPI preset events, see PAPI_presets or
       run the papi_avail utility in the PAPI distribution.  PAPI Presets
       can be passed to PAPI_query_event to see if they exist on the
       underlying architecture.  For a list of native events available on
       the current platform, run papi_native_avail in the PAPI distribution.

       @par C Interface:
       int PAPI_remove_event( int  EventSet, int  EventCode );

       @param[in] EventSet
	  -- an integer handle for a PAPI event set as created
		by PAPI_create_eventset
       @param[in] EventCode
	  -- a defined event such as PAPI_TOT_INS or a native event.

       @retval PAPI_OK
	   Everything worked.
       @retval PAPI_EINVAL
	   One or more of the arguments is invalid.
       @retval PAPI_ENOEVST
	   The EventSet specified does not exist.
       @retval PAPI_EISRUN
	   The EventSet is currently counting events.
       @retval PAPI_ECNFLCT
	   The underlying counter hardware can not count this
		  event and other events in the EventSet simultaneously.
       @retval PAPI_ENOEVNT
	   The PAPI preset is not available on the underlying hardware.

       @par Example:

       *   int EventSet = PAPI_NULL;
       *   int ret;
       *
       *   // Create an empty EventSet
       *   ret = PAPI_create_eventset(&EventSet);
       *   if (ret != PAPI_OK) handle_error(ret);
       *
       *   // Add Total Instructions Executed to our EventSet
       *   ret = PAPI_add_event(EventSet, PAPI_TOT_INS);
       *   if (ret != PAPI_OK) handle_error(ret);
       *
       *   // Start counting
       *   ret = PAPI_start(EventSet);
       *   if (ret != PAPI_OK) handle_error(ret);
       *
       *   // Stop counting, ignore values
       *   ret = PAPI_stop(EventSet, NULL);
       *   if (ret != PAPI_OK) handle_error(ret);
       *
       *   // Remove event
       *   ret = PAPI_remove_event(EventSet, PAPI_TOT_INS);
       *   if (ret != PAPI_OK) handle_error(ret);
       *

       See Also:
	   PAPI_cleanup_eventset

	   PAPI_destroy_eventset

	   PAPI_event_name_to_code

	   PAPI_presets

	   PAPI_add_event

	   PAPI_add_events

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

Version 5.2.0.0 						  Tue Jun 17 2014					      PAPI_remove_event(3)