PAPI_add_events (3) - Linux Manuals

NAME

PAPI_add_events -

add multiple PAPI presets or native hardware events to an event set

SYNOPSIS

Detailed Description

@par C Interface:
#include <papi.h> @n
int PAPI_add_events( int  EventSet, int * EventCodes, int  number );

PAPI_add_event adds one event to a PAPI Event Set. PAPI_add_events does 
the same, but for an array of events. @n
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 avail test case
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 current platform, run native_avail
test case in the PAPI distribution. For the encoding of native events,
see PAPI_event_name_to_code to learn how to generate native code for the
supported native event on the underlying architecture.

@param EventSet
    An integer handle for a PAPI Event Set as created by PAPI_create_eventset.
@param *EventCode 
    An array of defined events.
@param number 
    An integer indicating the number of events in the array *EventCode.
    It should be noted that PAPI_add_events can partially succeed, 
    exactly like PAPI_remove_events. 

@retval Positive-Integer
    The number of consecutive elements that succeeded before the error. 
@retval PAPI_EINVAL 
    One or more of the arguments is invalid.
@retval PAPI_ENOMEM 
    Insufficient memory to complete the operation.
@retval PAPI_ENOEVST 
    The event set specified does not exist.
@retval PAPI_EISRUN 
    The event set is currently counting events.
@retval PAPI_ECNFLCT 
    The underlying counter hardware can not count this event and other events 
    in the event set simultaneously.
@retval PAPI_ENOEVNT 
    The PAPI preset is not available on the underlying hardware.
@retval PAPI_EBUG 
    Internal error, please send mail to the developers. 

@par Examples:

*   int EventSet = PAPI_NULL;
*   unsigned int native = 0x0;
*   if ( PAPI_create_eventset( &EventSet ) != PAPI_OK )
*   handle_error( 1 );
*   // Add Total Instructions Executed to our EventSet
*   if ( PAPI_add_event( EventSet, PAPI_TOT_INS ) != PAPI_OK )
*   handle_error( 1 );
*   // Add native event PM_CYC to EventSet
*   if ( PAPI_event_name_to_code( "PM_CYC", &native ) != PAPI_OK )
*   handle_error( 1 );
*   if ( PAPI_add_event( EventSet, native ) != PAPI_OK )
*   handle_error( 1 );
*   

@see PAPI_cleanup_eventset @n
PAPI_destroy_eventset @n
PAPI_event_code_to_name @n
PAPI_remove_events @n
PAPI_query_event @n
PAPI_presets @n
PAPI_native @n
PAPI_remove_event.fi

 

Author

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