How can i use symbolic variables in a parallel Computing (parfor)?
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Hi guys,
I'm using 'parfor' instead of 'for' and performing some calculations with symbolic variables and matrices. However, I encountered some errors when using this function (figs belos).



Are there any solutions for this?
I attached the code.
thanks so much
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Matt J
2025년 3월 29일
편집: Matt J
2025년 3월 29일
Dlu_11_1= zeros([M,N,N,M], 'sym') ;
parfor t=1:(M*N)^2
[ki,kj,j,i]=ind2sub([M,N,N,M],t);
Dlu_11_1(t)=diff(dlU_11(ki,kj),U1(i,j));
end
Dlu_11_1=reshape( Dlu_11_1 , M*N, []);
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Matt J
2025년 3월 29일
This might be a little bit faster,
MN=M*N;
Dlu_11_1= zeros(MN, 'sym') ;
U1=U1.';
parfor t=1:(MN)^2
[I,J]=ind2sub([MN,MN],t);
Dlu_11_1(t)=diff(dlU_11(I),U1(J));
end
U1=U1.';
Dlu_11_1=reshape( Dlu_11_1 , MN, []);
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