Using a logical variable in parfor

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I have some logical variable I'm setting outside of a parfor loop, then using the logical variable inside the parfor loop for an if statement. When the logical value is false, the calculation inside the if statement is still executing. Even if I negate the variable, the condition inside the if statement is executed. It's like the if statement isn't being evaluated. I'm sure I have some bad structure here; how can I use the logical variable inside the parfor loop?
logicalvar = false;
if logicalvar
%initialize var2
end
parfor i = 1:10
[var] = calculatevar(withinputvariables);
if logicalvar
var2 = var2 + var;
end
end
  1 个评论
Walter Roberson
Walter Roberson 2018-1-18
Which version are you using? The problem did not show up in a quick test for me in R2017b:
logicalvar = false;
if logicalvar; var2 = 0; end
parfor i = 1 : 10; temp = rand; if logicalvar; var2 = var2 + temp; end; end
var2
var2 properly comes out as undefined.

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回答(1 个)

Adam R Mangel
Adam R Mangel 2018-1-18
2017b

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