/*******************************************************

* Copyright (c) 2014, ArrayFire

* All rights reserved.

*

* This file is distributed under 3-clause BSD license.

* The complete license agreement can be obtained at:

* http://arrayfire.com/licenses/BSD-3-Clause

********************************************************/

#ifndef __PROGRESS_H

#define __PROGRESS_H

#include <algorithm>

#include <cmath>

static bool progress(unsigned iter_curr, af::timer t, double time_total) {

static unsigned iter_prev = 0;

static double time_prev = 0;

static double max_rate = 0;

af::sync();

double time_curr = af::timer::stop(t);

if ((time_curr - time_prev) < 1) return true;

double rate = (iter_curr - iter_prev) / (time_curr - time_prev);

printf(" iterations per second: %.0f (progress %.0f%%)\n", rate,

100.0f * time_curr / time_total);

max_rate = std::max(max_rate, rate);

iter_prev = iter_curr;

time_prev = time_curr;

if (time_curr < time_total) return true;

printf(" ### %f iterations per second (max)\n", max_rate);

return false;

}

#endif