1 Intilization: initialize each m populations $P_1~P_m$ randomly

2 While (t ≤ m) do

3 for (q = 0 to max generation n) do

4 Evaluate fitness of each chromosomes

5 Pick chromosomes X^j ~ Xⁱ by roulette wheel selection algorithm where (X^j ≠ Xⁱ)

6 Corssover operator to $P_t^q$

7 Mutation operator to $P_t^q$

8 Add best solution X^e to elite population P_e and q++

9 end for and t++

10 end while

11 for (q = 0 to max generation n) do

12 Evaluate fitness of each chromosomes

13 Selection operator to P_e

14 Corssover operator to P_e

15 Mutation operator to P_e

16 q++

17 end for