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PAPI_accum_counters(3) PAPI PAPI_accum_counters(3)


PAPI_accum_counters -

Accumulate and reset counters.


Detailed Description

@par C Interface:
int PAPI_accum_counters( long long *values, int array_len );


*values an array to hold the counter values of the counting events
arry_len the number of items in the *events array


These calls assume an initialized PAPI library and a properly added event set.


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.

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()


Generated automatically by Doxygen for PAPI from the source code.

Fri Feb 22 2019 Version