system command error within a parfor

Ahmed Elkady

2026 3 19

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Hi all,

I'm getting this error when runnning the code below. I isolated the issue to the use of the system command within the parfor loop. Note however that the same exact code runs fine on another -windows- PC.

Error Identifier: MATLAB:parallel:future:FetchNextFutureErrored

Error Message: The function evaluation completed with an error.

parfor ......
        .....
        command = ...;
        system(command);
end

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Rik 2026-3-19，15:16

Does that other Windows PC also have the parallel computing toolbox? Because without that toolbox, parfor loops are treated as normal for loops, which avoids a lot of issues.

Ahmed Elkady 2026-3-19，17:49

Both PCs have the parallel computing toolbox. The only diffference, other than the hardware, is that one has R2023a (not working) and the other R2023b (working)

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