How to save computations of each "for" loop iteration in "SPMD"?

Hello,

I have a "for" loop in SPMD to implement parallel computing through some workers. the computation of each worker in each iteration, must be saved to be used in the next iteration. I have used cell arrays to determine the variables and other approachs with no success. there is a function to be calculated in each iteration with respect to the above variable and when the variable is not updated in each iteration, the answer comes up with the same value for all the iterations.

the overall structure of my script:

spmd
    for i=1:maxiter
        x               %variable calculated is each iteration
        y=x(i-1)+...    %the amount of x variable in the last iteration is needed
    end
end

[Science Machine]

I would have also liked to know! It seems that for loops within spmd loops are quite slow due to JIT (just in time)