Is there a way to speed up the time for calling external program?

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Gifari Zulkarnaen 2020-8-28

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https://ww2.mathworks.cn/matlabcentral/answers/585806-is-there-a-way-to-speed-up-the-time-for-calling-external-program

评论： Mario Malic 2020-8-30

I am doing optimization problem. The objective function requires to call external program. But time for calling the program (0.1s) is much longer than the analysis of external program itself (0.01s). The optimization needs thousands of iteration to find optimum solution, so this takes hours. Is there a way to shorten the time for calling external program as it consumes most of required time?

Example of my script:

% Optimization
x = ga(@fun,100);
% Objective function
function y = fun(x)
    % writing input for external program
    fprintf(fopen('input.tcl','wt'),'%s\n',x);
    % running external program
    !opensees.exe analysis.tcl
    % read analysis result
    out = fscanf(fopen('output.tcl','r'),'%f',[100 Inf]);
    % objective function
    y = fun2(out);
end