for loop in parfor

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Mohamed
Mohamed 2011-6-17
编辑： Niels 2015-3-6
I want to use a for-loop inside parfor, is it possible? If not what is the alternative?
Thanks,

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Edric Ellis
Edric Ellis 2011-6-17
Yes, it's possible. For example,
parfor ii=1:10
for jj=1:10
x(ii,jj) = rand
end
end
Note that this example is so computationally trivial that it is much slower than a serial version.
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Edric Ellis
Edric Ellis 2012-7-2
@Benoit - which version are you running? The ability to recognise 'x' as a sliced variable was added relatively recently.
@Walter - matlabpool workers (either local workers with PCT or cluster workers with MDCS) have no visible graphics of their own. However, they can generate off-screen graphics and call 'print' to files.
Niels
Niels 2015-3-6
编辑：Niels 2015-3-6
Hi Edric, I am trying to run a slightly modified script:
a = linspace(0,10);
parfor ii=1:10
for jj=1:length(a)
x(ii,jj) = rand;
end
end
However, Matlab complains about the x variable classification. But I don't quite understand, why it shouldn't work. Any ideas? Thanks in advance, Niels.

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