I have a problem in I parallelize my matlab code,

Hello everyone

I use the parfor loop to parallelize my code here is the message that is displayed:"The temporary variable val in a parfor is uninitialized."

[Jan]

Please post the relevant part of the code, preferrably a minimal working example, and a copy of the complete error message.

[PIERRE OLIVIER SCHOUEL ATANGANA]

parfor (i = 1:k,5)

members = (i == idx);

disp(strcat('Cluster numero <',num2str(i),'>'));

sousEns=Pts(members,:);

if(isempty(sousEns)==1)

continue

end

sousRay=Ray(members);

disp('De Centroid');

disp(C(i,:));

Echan=[];

for j = 1:size(sousEns,1)

xx=[];

yy=[];

zz=[];

xx=sousRay(j)*sin(phi).*cos(theta)+sousEns(j,1);

yy=sousRay(j)*sin(phi).*sin(theta)+sousEns(j,2);

zz=sousRay(j)*cos(phi)+sousEns(j,3);

% disp('OOOKKKKK')

n=size(xx(:),1);

Echan2=[];

Echan2(1:n,1)=xx(:);

Echan2(1:n,2)=yy(:);

Echan2(1:n,3)=zz(:);

Echan=[Echan2;Echan];

[xu,yu,zu] = sphere;

x = xu*sousRay(j) + sousEns(j,1);

y = yu*sousRay(j) + sousEns(j,2);

z = zu*sousRay(j) + sousEns(j,3);

c = ones(size(z))*1;

hold on;

surf(x,y,z,c);

end

end

here is the error: Use addAttachedFiles(pool, files) to specify the required files to be attached.

[PIERRE OLIVIER SCHOUEL ATANGANA]

here is the error message:

An UndefinedFunction error was thrown on the workers for 'mex'. This might be because the file containing 'mex' is not

accessible on the workers. Use addAttachedFiles(pool, files) to specify the required files to be attached. See the

documentation for 'parallel.Pool/addAttachedFiles' for more details.

[PIERRE OLIVIER SCHOUEL ATANGANA]

excuse me as I often respond late. I do not yet understand how the forum looks