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how apply parfor for this code

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omar A.alghafoor
omar A.alghafoor 2020-10-15
评论： omar A.alghafoor 2020-10-15
Hi friends ....
i try apply parfor for my code but appear note " the parfor loop cannot run........"
Are there any solution?
This code:
lfSeed = '11001011';
lfPrev = lfSeed;
lfsrKey = uint8(zeros(m, n));
parfor i=1:m
for j=1:n
%LFSR Sequence
lfPrev = strcat(lfPrev(2:8), num2str(xor(str2double(lfPrev(1)), xor(str2double(lfPrev(5)),....
xor(str2double(lfPrev(6)), str2double(lfPrev(7)))))));
lfsrKey (i, j) = bin2dec(lfPrev);
end
end
lfsrKey (:,:, 2)=lfsrKey (:,:, 1);
lfsrKey (:,:, 3)=lfsrKey (:,:, 1);
toc;

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回答（1 个）

Matt J
Matt J 2020-10-15
编辑：Matt J 2020-10-15
No, parfor cannot be applied here. Your loop iterations are not parallel because lfPrev depends on previous iterations.

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