Parallel code for "multi for" loops

How make a multi for loop in parallel? See example below.

for i = 1:Nodex
    for j=1:Nodey
    nodpos_X((i-1)*Nodey+j,1) = (i-1) * delta + (delta / 2.0)*(-Nodex+1);    
    end
end

[Walter Roberson]

That already seems to be nested for loops. I notice that your right hand side does not involve j, so you will end up with multiple copies of the same value.

Answer 1

[Matt J]

 parfor ind = 1:Nodex*Nodey

     [j,i]=ind2sub([Nodex,Nodey],ind);

     nodpos_X(ind,1) = (i-1) * delta + (delta / 2.0)*(-Nodex+1);    

 end