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PAPI_flips Class Reference

Simplified call to get Mflips/s (floating point instruction rate), real and processor time. More...

Detailed Description

C Interface:
#include <papi.h>
int PAPI_flips( float *rtime, float *ptime, long long *flpins, float *mflips );
*rtimetotal realtime since the first call
*ptimetotal process time since the first call
*flpinstotal floating point instructions since the first call
*mflipsincremental (Mega) floating point instructions per seconds since the last call
Return values
PAPI_EINVALThe counters were already started by something other than PAPI_flips().
PAPI_ENOEVNTThe floating point instructions event does not exist.
PAPI_ENOMEMInsufficient memory to complete the operation.

The first call to PAPI_flips() will initialize the PAPI High Level interface, set up the counters to monitor the PAPI_FP_INS event and start the counters.

Subsequent calls will read the counters and return total real time, total process time, total floating point instructions since the start of the measurement and the Mflip/s rate since latest call to PAPI_flips(). A call to PAPI_stop_counters() will stop the counters from running and then calls such as PAPI_start_counters() or other rate calls can safely be used.

PAPI_flips returns information related to floating point instructions using the PAPI_FP_INS event. This is intended to measure instruction rate through the floating point pipe with no massaging.

See Also

The documentation for this class was generated from the following file: