The problem is, that the outer loop has 10 repetitions and the inner loop 50 repetitions
Combine the loops into one, i.e., instead of
for i=1:10% Split between multiple nodes
parfor j=1:50 % Split betwenn mutliple cores
...
end
end
do instead,
parfor k=1:10*50
[i,j]=ind2sub([10,50],k);
...
end
