papi_attach(3) [centos man page]

PAPI_attach(3)							       PAPI							    PAPI_attach(3)

NAME

       PAPI_attach -

       Attach PAPI event set to the specified thread id.

SYNOPSIS

Detailed Description
       @par C Interface:
       int PAPI_attach( int EventSet, unsigned long tid );

       PAPI_attach is a wrapper function that calls PAPI_set_opt to allow PAPI to
       monitor performance counts on a thread other than the one currently executing.
       This is sometimes referred to as third party monitoring.
       PAPI_attach connects the specified EventSet to the specifed thread;
       PAPI_detach breaks that connection and restores the EventSet to the
       original executing thread.

       @param EventSet
	   An integer handle for a PAPI EventSet as created by PAPI_create_eventset.
       @param tid
	   A thread id as obtained from, for example, PAPI_list_threads or PAPI_thread_id.

       @retval PAPI_ECMP
	   This feature is unsupported on this component.
       @retval PAPI_EINVAL
	   One or more of the arguments is invalid.
       @retval PAPI_ENOEVST
	   The event set specified does not exist.
       @retval PAPI_EISRUN
	   The event set is currently counting events.

       @par Examples:

       *   int EventSet = PAPI_NULL;
       *   unsigned long pid;
       *   pid = fork( );
       *   if ( pid <= 0 )
       *   exit( 1 );
       *   if ( PAPI_create_eventset( &EventSet ) != PAPI_OK )
       *   exit( 1 );
       *   // Add Total Instructions Executed to our EventSet
       *   if ( PAPI_add_event( EventSet, PAPI_TOT_INS ) != PAPI_OK )
       *   exit( 1 );
       *   // Attach this EventSet to the forked process
       *   if ( PAPI_attach( EventSet, pid ) != PAPI_OK )
       *   exit( 1 );
       *

       See Also:
	   PAPI_set_opt

	   PAPI_list_threads

	   PAPI_thread_id

	   PAPI_thread_init

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

Version 5.2.0.0 						  Tue Jun 17 2014						    PAPI_attach(3)

PAPI_remove_named_event(3)					       PAPI						PAPI_remove_named_event(3)

NAME

       PAPI_remove_named_event -

       removes a named 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] EventName
	  -- 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_ENOINIT
	   The PAPI library has not been initialized.
       @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:

       *   char EventName = "PAPI_TOT_INS";
       *   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_named_event(EventSet, EventName);
       *   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_named_event(EventSet, EventName);
       *   if (ret != PAPI_OK) handle_error(ret);
       *

       See Also:
	   PAPI_remove_event
	    PAPI_query_named_event
	    PAPI_add_named_event

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

Version 5.2.0.0 						  Tue Jun 17 2014					PAPI_remove_named_event(3)