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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