PAPI 7.1.0.0
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PAPI_accum Class Reference

Accumulate and reset counters in an EventSet. More...

Detailed Description

C Interface:
#include <papi.h>
int PAPI_accum( int EventSet, long_long * values );

These calls assume an initialized PAPI library and a properly added event set. PAPI_accum adds the counters of the indicated event set into the array values. The counters are zeroed and continue counting after the operation. Note the differences between PAPI_read and PAPI_accum, specifically that PAPI_accum resets the values array to zero.

Parameters
EventSetan integer handle for a PAPI Event Set as created by PAPI_create_eventset
*valuesan array to hold the counter values of the counting events
Return values
PAPI_EINVALOne or more of the arguments is invalid.
PAPI_ESYSA system or C library call failed inside PAPI, see the errno variable.
PAPI_ENOEVSTThe event set specified does not exist.
Examples:
do_100events( );
handle_error( 1 );
// values[0] now equals 100
do_100events( );
handle_error( 1 );
// values[0] now equals 200
values[0] = -100;
do_100events( );
handle_error( 1 );
// values[0] now equals 0
Accumulate and reset counters in an EventSet.
Read hardware counters from an event set.
#define PAPI_OK
Definition: f90papi.h:73
static int EventSet
Definition: init_fini.c:8
static long long values[NUM_EVENTS]
Definition: init_fini.c:10
See also
PAPIF_accum
PAPI_start
PAPI_set_opt
PAPI_reset

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