PAPI_multiplex_init(3) PAPI PAPI_multiplex_init(3)NAME
PAPI_multiplex_init -
Initialize multiplex support in the PAPI library.
SYNOPSIS Detailed Description
PAPI_multiplex_init() enables and initializes multiplex support in
the PAPI library.
Multiplexing allows a user to count more events than total physical
counters by time sharing the existing counters at some loss in
precision.
Applications that make no use of multiplexing do not need to call
this routine.
C Interface:
#include <papi.h>
int PAPI_multiplex_init (void);
Examples
* retval = PAPI_multiplex_init();
*
Return values:
PAPI_OK This call always returns PAPI_OK
See Also:
PAPI_set_multiplex
PAPI_get_multiplex
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Tue Jun 17 2014 PAPI_multiplex_init(3)
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PAPI_reset(3) PAPI PAPI_reset(3)NAME
PAPI_reset -
Reset the hardware event counts in an event set.
SYNOPSIS Detailed Description
@par C Prototype:
int PAPI_reset( int EventSet );
@param EventSet
an integer handle for a PAPI event set as created by PAPI_create_eventset
@retval PAPI_OK
@retval PAPI_ESYS
A system or C library call failed inside PAPI, see the errno variable.
@retval 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
@par 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
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Tue Jun 17 2014 PAPI_reset(3)
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