CUDA timer units Units of the timer

Accelerated Computing CUDA CUDA Programming and Performance
1

Hello,

the code for a general timer is as follows:

CUT_SAFE_CALL(cutCreateTimer(&htimer));
CUT_SAFE_CALL(cutStartTimer(htimer));

{cuda functions here}

CUT_SAFE_CALL(cutStopTimer(htimer));
gputime = cutGetTimerValue(htimer);
cutDeleteTimer(htimer);

where gputime and htimer are variables. Does someone know the units in which this inbuilt timer gives an output ? or a way of conversion to a specific problem ?

Thanks