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PAPI_query_event(3) PAPI PAPI_query_event(3)

NAME

PAPI_query_event - Query if PAPI event exists.

SYNOPSIS

Detailed Description

C Interface:

#include <papi.h>
int PAPI_query_event(int EventCode);

PAPI_query_event() asks the PAPI library if the PAPI Preset event can be counted on this architecture. If the event CAN be counted, the function returns PAPI_OK. If the event CANNOT be counted, the function returns an error code. This function also can be used to check the syntax of native and user events.

Parameters

EventCode -- a defined event such as PAPI_TOT_INS.

Return values

PAPI_EINVAL One or more of the arguments is invalid.
PAPI_ENOEVNT The PAPI preset is not available on the underlying hardware.

Examples

int retval;
// Initialize the library
retval = PAPI_library_init(PAPI_VER_CURRENT);
if (retval != PAPI_VER_CURRENT) {


  fprintf(stderr,\"PAPI library init error!\\n\");


  exit(1); 
}
if (PAPI_query_event(PAPI_TOT_INS) != PAPI_OK) {


  fprintf(stderr,\"No instruction counter? How lame.\\n\");


  exit(1);
}

See also

PAPI_remove_event

PAPI_remove_events

PAPI_presets

PAPI_native

Author

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Thu Dec 14 2023 Version 7.1.0.0