PAPI_accum(3) PAPI PAPI_accum(3)NAMEPAPI_accum-
Accumulate and reset counters in an EventSet.
SYNOPSISDetailed 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:
EventSet an integer handle for a PAPI Event Set as created by
PAPI_create_eventset
*values an array to hold the counter values of the counting events
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_ENOEVST The event set specified does not exist.
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
Generated automatically by Doxygen for PAPI from the source code.
Version 5.1.1.0 Tue May 21 2013 PAPI_accum(3)
