HPL_ptimer HPL 2.2 Library Functions February 24, 2016
provides a "stopwatch" functionality cpu/wall timer in
seconds. Up to 64 separate timers can be functioning at once. The
first call starts the timer, and the second stops it. This routine
can be disenabled by calling HPL_ptimer_disable(), so that calls to
the timer are ignored. This feature can be used to make sure certain
sections of code do not affect timings, even if they call routines
which have HPL_ptimer calls in them. HPL_ptimer_enable() will enable
the timer functionality. One can retrieve the current value of a
timer by calling
t0 = HPL_ptimer_inquire( HPL_WALL_TIME | HPL_CPU_TIME, I )
where I is the timer index in [0..64). To inititialize the timer
functionality, one must have called HPL_ptimer_boot() prior to any of
the functions mentioned above.
I (global input) const int
On entry, I specifies the timer to stop/start.