Way to tell % complete of script

Is there a way to get an elapsed time or estimated time left or even a percent left of a script that is running?

Answer 1

[Jan]

The elapsed time is easy:

iniTime = clock;

for i = 1:1000
   ...  your calculations here
   pause(0.02);  % For demonstration only

     fprintf('elapsed time: %d sec\n', etime(clock, iniTime));
     drawnow;
  end

Estimating how long the processing will run, needs additional knowledge about the calculations. In the example all iterations of the FOR loop will use a similar amount of time. But if you use "pause(rand*1000)" there is no chance for a fair estimation. Then only showing the percentage of remaining iterations is meaningful.

If your script is not based on a loop, other messages might be helpful:

fprintf('Initialize... ');
pause(0.5);
fprintf('ready\n');

fprintf('Processing stage 1... ');
pause(0.5);
fprintf('ready\n');
... etc

Answer 2

[David Young]

If the script is already running, no.

If

• the script has not yet started running
• you can identify the main loop
• each iteration of the loop takes a reasonably consistent length of time
• the total number of iterations of the loop is known in advance

then you can insert a statement in the loop to print out the percentage of iterations complete, or display a progress bar using waitbar. There are examples in

 doc waitbar

To get the elapsed time, you can use tic and toc. To get the cpu time used, you can use cputime.

Answer 3

[Daniel Shub]

If you have not started the script yet, but want the script to tell you how far you are along once you start it there are a number of submission on the FEX: http://www.mathworks.com/matlabcentral/fileexchange/?term=progress+bar

If the script is already running, then in general you cannot find out where it is. If you have a good idea of what the memory/processor/network profile should look like, then maybe you could inspect those and figure out where you are.