This doesn't address your issue, but you can't have a nested parfor loop/spmd block, which is in essense, what you're suggesting.
parfor i=1:nit
[~] = GAcode();
H1(i,1)=fval;
H2(i,1:nvars)=x;
end
Roughly, I'm assuming GAcode is similar to
...
parfor j = 1:X
% Some code
end
...
Simplifyling this to
parfor i=1:nit
parfor j = 1:X
% Some code
end
H1(i,1)=fval;
H2(i,1:nvars)=x;
end
In your specific case (by calling GAcode), the "inner parfor" will result in a for-loop. You may want to test which loop is better to parallelize.
If you try the outer for-loop, the issue with H2 is addressed here
Form of Indexing. Within the list of indices for a sliced variable, one index is of the form i, i+k, i-k, k+i, or k-i.
- i is the loop variable.
- k is a constant or a simple (nonindexed) variable.
- Every other index is a constant, a simple variable, colon, or end.
The last bullet item addresses H2. Would this work instead?
H2(i,:)=x;
