Using a logical variable in parfor

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

[Walter Roberson]

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.

Answer 1

[Adam R Mangel]

2017b