problem with parfor loop

Is it possible to parfor this?

 for iter=1:50
     for i=1:100
         x(:,i)= rand(3,1)
     end
 end

Answer 1

[Matt J]

Sure, especially since the outer loop is not doing anything and can be abandoned.

     parfor i=1:100
         x(:,i)= rand(3,1)
     end

[freebil]

thanks for the answer but i want to parfor the first for. Is it possible?

[Matt J]

parfor iter=1:50

       x=nan(3,100); %initialize

       for i=1:100
           x(:,i)= rand(3,1)
       end
  end

[freebil]

Really thanks! But i was wrong. Sorry. I want this

 parfor iter=1:50
     for i=1:100
         x(iter,i)= rand(3,1)
     end
 end

Is it possible? Sorry again

[Matt J]

No, it's not possible even with normal for loops. The left hand side of

    x(iter,i)= rand(3,1)

is 1x1 but the rhs is 3x1.

[freebil]

x(iter,i)= rand(1) with parfor??

[Matt J]

You can do it, but doing it without loops

x=rand(50,100);

will be faster.