Invalid MEX-file error

Hi,

I'm trying to use Genetic Algorithm in a parallel way with an external software (Lumerical FDTD solver). I checked the blog, and updated my code; you can see it below:

spmd // I include this part according to the previous answers about the same topic

mkdir(sprintf('worker%d', labindex));

copyfile('3D_sym.fsp',sprintf('worker%d/',labindex)); // my sim. file

cd(sprintf('worker%d', labindex));

end

funcao = @(ch) symmetric_3d(ch);

options = optimoptions('ga','MaxGenerations',20,'PopulationType','bitstring','PopulationSize',10,'UseParallel',true); % sets PARALLEL

LB = [];

UB = [];

ch = ga(funcao,9,[],[],[],[],LB,UB,[],options);

%Objective function

function y = symmetric_3d(ch)

path(path,'C:\Program Files\Lumerical\FDTD\api\matlab');

sim_file_path=('C:\Users\Buse\Documents\LumericalMatlab\Paper sim\4-fold symmetry'); % update this path to user's folder

sim_file_name=('3D_sym.fsp');

h=appopen('fdtd'); // This is where I am taking the error

appputvar(h,'sim_file_path',sim_file_path);

appputvar(h,'sim_file_name',sim_file_name);

.

.

.

end

After the workers start to work, I'm taking the error of

Invalid MEX-file

‘C:\Users\Buse\AppData\Local\Temp\tp99cfa8cc_5cfe_47b2_85c0_a22c630f3610rp5300\a\tp63e4ed59_c57d_469d_b137_1605eaa753ca\appopen.mexw64’:

Missing dependent shared libraries:

‘matlab-interop.dll’ required by

‘C:\Users\Buse\AppData\Local\Temp\tp99cfa8cc_5cfe_47b2_85c0_a22c630f3610rp5300\a\tp63e4ed59_c57d_469d_b137_1605eaa753ca\appopen.mexw64’.

I couldn't file anything about this ddl file. How can I fix this error?

Regards

Answer 1

[Chidvi Modala]

You can refer to https://www.mathworks.com/help/matlab/matlab_external/invalid-mex-file-error.html