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PAPI_stop(3) | PAPI | PAPI_stop(3) |
NAME¶
PAPI_stop - Stop counting hardware events in an event set.
SYNOPSIS¶
Detailed Description¶
C Interface:
#include <papi.h>
int PAPI_stop( int EventSet, long long * values );
int PAPI_stop( int EventSet, long long * values );
Parameters
EventSet -- an integer handle for a PAPI event set
as created by PAPI_create_eventset
values -- an array to hold the counter values of the counting events
values -- an array to hold the counter values of the counting events
Return values
PAPI_OK
PAPI_EINVAL One or more of the arguments is invalid.
PAPI_ESYS A system or C library call failed inside PAPI, see the errno variable.
PAPI_ENOEVST The EventSet specified does not exist.
PAPI_ENOTRUN The EventSet is currently not running.
PAPI_EINVAL One or more of the arguments is invalid.
PAPI_ESYS A system or C library call failed inside PAPI, see the errno variable.
PAPI_ENOEVST The EventSet specified does not exist.
PAPI_ENOTRUN The EventSet is currently not running.
PAPI_stop halts the counting of a previously defined event set and the counter values contained in that EventSet are copied into the values array Assumes an initialized PAPI library and a properly added event set.
Example:
int EventSet = PAPI_NULL; long long values[2]; int ret; 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); poorly_tuned_function(); ret = PAPI_stop(EventSet, values); if (ret != PAPI_OK) handle_error(ret); printf("%lld\\n",values[0]);
See also
PAPI_create_eventset PAPI_start
Author¶
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Thu Dec 14 2023 | Version 7.1.0.0 |