How can I run two function in parallel?

I want to run two function in parallel for execution time minimization. Is it possible in matlab. I have two function func1 and func2. The func2 depends on func1. func2 takes 2.5 second and func2 takes 1.5 second for execution. i want to run func1 and func2 simultaneously for reducing execution time. If the two function run simultaneously, then func2 have to wait only for 1s (may be)............

[Pawel Ladosz]

Hi,

What do you mean by func2 depends func1? func2 takes output of func1 and manipulates it?

[K M Ibrahim Khalilullah]

thank you for your answer. yes, func2 takes output of func1 and manipulates it.

[Walter Roberson]

Does func2 require only a partly computed value? If func2 requires the completely computed output of func1 then it must be run in serial with func1 and you cannot save any time by using parallel computing.

[K M Ibrahim Khalilullah]

Thank you very much. yes func2 requires the completely computed output. But my questions is , if the func1 run some seconds before the running of func2 in parallel. Then may be possible like java...But in matlab is there any way to run two function like that. I don't know that is my idea. Already I reduce the time by converting in C using matlab coder. However, is it possible to implement my idea in matlab?

[Pawel Ladosz]

I don't see how this could happen, unless you can run parts of func2 without the output of func1. In that case you could try and split func2 into two more functions, one of which could be run parallel with func1.

Answer 1

[Walter Roberson]

Use spmd . You can transfer data from one worker to the other using labSend() and labReceive()

[G Newton]

but ones i was runing function in parallel then its remove the variables after excutions?

[Walter Roberson]

Yes, as usual, the local workspace of a function will be destroyed when the function returns.

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

[K M Ibrahim Khalilullah]

Thank to all for comments. Now I understood that it is not possible to run two dependent functions in parallel. So I have to run in serial..