How can I pause and restart a script that is executing a long FOR loop in MATLAB?

How can I pause and restart a script that is executing a long FOR loop in MATLAB?

I want to pause and restart a script that is executing a long FOR loop so that I may do other things on my machine.

For example, if my script looks something like:

    <Beginning Code>

     for x = 1:1000000

          <Iterative Code>

     end 

     <Final Code>

I want to be able to stop this FOR loop at some time, perform some unrelated tasks, then restart at its current iteration.

Answer 1

[MathWorks Support Team]

To stop and restart a FOR loop in the following form:

    <Beginning Code>

     for x = 1:1000000

         <Iterative Code>

     end 

     <Final Code>

Use Ctrl+C to stop the iteration. If Ctrl+C does not stop the loop right away, place a DRAWNOW command within your iterative code. This will allow MATLAB to check for a Ctrl+C command during every iteration.

After the FOR loop has been halted, type:

     save TempData

This saves the current workspace to a MAT-file. At this point, you can do any task you would like within MATLAB. When you are ready to restart the FOR loop, create and run a similar script file comprised by the code:

     load TempData

     N = x;

     for x = N:1000000

          <Iterative Code>

     end 

     <Final Code>