how to run 2 script .m at the same time in matlab?

I want to run to execute 2 matlab script multiObject1.m and multiObject.m at the same time

Answer 1

[Walter Roberson]

Well, if you really need to do that (the cases are fewer than one might expect) then you will need to use the Parallel Processing Toolbox, and use either parfor or spmd. If the two will need to communicate with each other than spmd would be recommended.

However, when people say they need to run two scripts at the same time, they often mean that one script has to be able to gain control temporarily, do a bit of work, and then allow the other script to continue. It is not uncommon to be able to program that with callbacks of various kinds of events without needing the Parallel Processing Toolbox.

[Ali Abdallah]

No the two script is independent and doesn't communicate with each other and they have the same functionalities but different content if there are a code to execute them together it will be great

Or if we open a new script and that script execute the two other script

[Walter Roberson]

If they do not communicate, then what is driving the need to have them run at the same time?

[Ali Abdallah]

each script run a video from different angle and apply several function to track motion and mask and imcrop() each frame to obtain only the motion object For that I want to run the two script in the same time to play the two video in the same time and apply my function on it

[Walter Roberson]

Only one thread can use graphics so you can not have two threads displaying video at the same time. The closest you can get is to have one of the threads send the data to the other so that all of the drawing is done by one thread.

[Ali Abdallah]

if I use third script to execute the two other and I delay the execution of one of them until the second execute it will work??

Or I will have to execute same function to two video in the same time

[Guillaume]

No, it will not work. As Walter said, only one script at a time can update what is shown on screen.

To do what you want you'll need to have:

• main code (script) in charge of displaying both processed video frames at the same time
• 1st background script in charge of processing the video from one angle. Has to communicate with main code to give it the processed frame when done
• 2nd background script in charge of processing the video from the 2nd angle. Also has to communicate with main code to give it the processed frame when done

If you don't have the parallel toolbox, then the background scripts would have to be called sequentially on each video frame and display may be far from real time.

[Ali Abdallah]

Ok i will try thanks