lis_wtime.3f man page
lis_wtime — measure the elapsed time
subroutine lis_wtime(LIS_INT* argc, char** argv, LIS_INTEGER ierr);
Measure the elapsed time.
The elapsed time in seconds from the given point is returned as the double precision number
To measure the processing time, call lis_wtime to get the starting time, call it again to get the ending time, and calculate the difference.