PAPI_accum_counters(3) PAPI PAPI_accum_counters(3)NAMEPAPI_accum_counters-
Accumulate and reset counters.
SYNOPSISDetailed Description
C Interface:
#include <papi.h>
int PAPI_accum_counters( long long *values, int array_len );
Parameters:
*values an array to hold the counter values of the counting events
arry_len the number of items in the *events array
Precondition:
These calls assume an initialized PAPI library and a properly added
event set.
Postcondition:
The counters are reset and left running after the call.
Return values:
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_accum_counters() adds the event counters into the array *values.
do_100events();
if ( PAPI_read_counters( values, num_hwcntrs ) != PAPI_OK )
handlw_error(1);
// values[0] now equals 100
do_100events();
if ( PAPI_accum_counters( values, num_hwcntrs ) != PAPI_OK )
handle_error(1);
// values[0] now equals 200
values[0] = -100;
do_100events();
if ( PAPI_accum_counters(values, num_hwcntrs ) != PAPI_OK )
handle_error();
// values[0] now equals 0
See also:
PAPI_set_opt()PAPI_start_counters()Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.1.1.0 Tue May 21 2013 PAPI_accum_counters(3)
