removes a hardware event from a PAPI event set. More...

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.

C Interface:: #include <papi.h>
int PAPI_remove_event( int EventSet, int EventCode );

Parameters

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

Return values

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

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

The documentation for this class was generated from the following file:

papi.c