Single objective constrained parallel optimization cannot work?

[jmejia8]

Single objective constrained parallel optimization cannot work?

[jmejia8]

It should be:

function fff(X)
    N = size(X,1)
    fx, gx, hx = zeros(N), zeros(N,1), zeros(N,1)
    Threads.@threads for i in 1:size(X,1)
        fx[i], gx[i,:], hx[i,:] = f(X[i,:])
    end
    fx, gx, hx
end

Note that gx isa Matrix not a Vector (same for hx).

[jmejia8]

It is recommended to read the documentation on parallelization within Metaheuristics:

https://jmejia8.github.io/Metaheuristics.jl/stable/tutorials/parallelization/