table of contents
PAPI_accum(3) | PAPI | PAPI_accum(3) |
NAME¶
PAPI_accum -
Accumulate and reset counters in an EventSet.
SYNOPSIS¶
Detailed Description¶
@par C Interface: 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. @param EventSet
an integer handle for a PAPI Event Set
as created by PAPI_create_eventset @param *values
an array to hold the counter values of the counting events @retval PAPI_EINVAL
One or more of the arguments is invalid. @retval PAPI_ESYS
A system or C library call failed inside PAPI, see the errno variable. @retval PAPI_ENOEVST
The event set specified does not exist. @par Examples:
* do_100events( ); * if ( PAPI_read( EventSet, values) != PAPI_OK ) * handle_error( 1 ); * // values[0] now equals 100 * do_100events( ); * if (PAPI_accum( EventSet, values ) != PAPI_OK ) * handle_error( 1 ); * // values[0] now equals 200 * values[0] = -100; * do_100events( ); * if (PAPI_accum( EventSet, values ) != PAPI_OK ) * handle_error( 1 ); * // values[0] now equals 0 *
See Also:
PAPIF_accum
PAPI_start
PAPI_set_opt
PAPI_reset
Author¶
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Wed Oct 31 2018 | Version 5.2.0.0 |