PAPI_reset(3)

NAME
PAPI_reset -

Reset the hardware event counts in an event set.

SYNOPSIS

Detailed Description

C Prototype:
    #include <papi.h>
     int PAPI_reset( int EventSet );

Parameters:
    EventSet an integer handle for a PAPI event set as created by PAPI_create_eventset

Return values:
    PAPI_OK
    PAPI_ESYS A system or C library call failed inside PAPI, see the errno variable.
    PAPI_ENOEVST The EventSet specified does not exist.

PAPI_reset() zeroes the values of the counters contained in EventSet. This call assumes an initialized PAPI library and a properly added event set

Example:

    int EventSet = PAPI_NULL;
    int Events[] = {PAPI_TOT_INS, PAPI_FP_OPS};
    int ret;

    // Create an empty EventSet
    ret = PAPI_create_eventset(&EventSet);
    if (ret != PAPI_OK) handle_error(ret);
    // Add two events to our EventSet
    ret = PAPI_add_events(EventSet, Events, 2);
    if (ret != PAPI_OK) handle_error(ret);
    // Start counting
    ret = PAPI_start(EventSet);
    if (ret != PAPI_OK) handle_error(ret);
    // Stop counting, ignore values
    ret = PAPI_stop(EventSet, NULL);
    if (ret != PAPI_OK) handle_error(ret);
    // reset the counters in this EventSet
    ret = PAPI_reset(EventSet);
    if (ret != PAPI_OK) handle_error(ret);

See also:
    PAPI_create_eventset

Author

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