NAME

       PAPI_ipc -

       Simplified call to get instructions per cycle, real and processor time.

SYNOPSIS

Detailed Description

       C Interface:
           #include <papi.h>
           int PAPI_ipc( float *rtime, float *ptime, long long *ins, float *ipc );

       Parameters:
           *rtime realtime since the latest call
           *ptime process time since the latest call
           *ins instructions since the latest call
           *ipc incremental instructions per cycle since the latest call

       Return values:
           PAPI_EINVAL The counters were already started by something other than PAPI_ipc().
           PAPI_ENOEVNT The events PAPI_TOT_INS and PAPI_TOT_CYC are not supported.
           PAPI_ENOMEM Insufficient memory to complete the operation.

       The first call to PAPI_ipc() will initialize the PAPI interface, set up the counters to
       monitor PAPI_TOT_INS and PAPI_TOT_CYC events and start the counters.

       Subsequent calls will read the counters and return real time, process time, instructions
       and the IPC rate since the latest call to PAPI_ipc().

       PAPI_ipc() should return a ratio greater than 1.0, indicating instruction level
       parallelism within the chip. The larger this ratio the more effeciently the program is
       running. Note that PAPI_ipc() is thread-safe and can therefore be called by multiple
       threads.

       See Also:
           PAPI_flips_rate()

           PAPI_flops_rate()

           PAPI_epc()

           PAPI_rate_stop()

Author

       Generated automatically by Doxygen for PAPI from the source code.