timer.cpp
e6ac7757a374lammps-icms

timer.cpp
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			#include "timer.h"
			/* -----------------------------------------------------------------------------
			* Initialization of time
			* -------------------------------------------------------------------------- */
			Timer::Timer()
			{
			flag = 0;
			start();
			return;
			}

			/* -----------------------------------------------------------------------------
			* public function, start the timer
			* -------------------------------------------------------------------------- */
			void Timer::start()
			{
			t1 = clock();
			flag \|= 1;

			return;
			}

			/* -----------------------------------------------------------------------------
			* public function, stop the timer
			* -------------------------------------------------------------------------- */
			void Timer::stop()
			{
			if ( flag&1 ) {
			t2 = clock();
			flag \|= 2;
			}
			return;
			}

			/* -----------------------------------------------------------------------------
			* public function, print the total time used after timer stops
			* -------------------------------------------------------------------------- */
			void Timer::print()
			{
			if ( (flag&3) != 3) return;

			cpu_time_used = ((double) (t2 - t1)) / CLOCKS_PER_SEC;
			printf("Total CPU time used: %g seconds.\n", cpu_time_used);

			return;
			}

			/* -----------------------------------------------------------------------------
			* public function, return the total time used up to now, in seconds
			* -------------------------------------------------------------------------- */
			double Timer::elapse()
			{
			if ( (flag&3) != 3) return 0.;
			else return ((double) (t2 - t1)) / CLOCKS_PER_SEC;
			}