Creating table columns in a parfor loop

asdfg asdfg

2024 1 6

0 个回答

8 次查看（30 天）

0 个投票

Found this buggy behaviour when creating tables in a parfor loop. The first example (doesn't work) causes the parallel pool worker to crash and gives a "Segmentation Violation" error in the crash dump file. However, in the second example (works), including any character that needs escaping (i.e. -, +, etc) in the table column title avoids the error.

%doesnt work
parpool('local', 1);
parfor i=1
     temptab = table();
     temptab.('var1') = ['a';'b'];
end
%works
parpool('local', 1);
parfor i=1
    temptab = table();
    temptab.('var-1') = ['a';'b'];
end

6 个评论
显示 4更早的评论隐藏 4更早的评论

Matt J 2024-1-9

R2023b Windows 10.

Raymond Norris 2024-1-10

Good thought, @Damian Pietrus. R2024a prerelease also works for me. So,

@asdfg asdfg has problems with R2023b (Mac)

@Damian Pietrus and @Raymond Norris have problems with R2023b (Windows 11)

@Matt J works fine with R2023b (Windows 10)

My next thought is the release Update. But I'm runnig GR (Update 0) and Damian's running the latest (Update 5).

@asdfg asdfg if you need this working on macOS R2023b, I'd suggest contacting MathWorks Technical Support. Otherwise, consider trying R2024a Prerelease.

请先登录，再进行评论。

请先登录，再回答此问题。

Follow Question