PAPI_stop Class Reference

Stop counting hardware events in an event set. More...


Detailed Description

C Interface:
#include <papi.h>
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
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_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

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

Generated on 17 Nov 2016 for PAPI by  doxygen 1.6.1